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Wiki source code of 10 Malfunctions

Version 1.6 by Iris on 2025/09/05 17:26
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Wecon 1.1 1 = **Faults and warnings handling at startup** =
2
3 == **Position control mode** ==
4
5 |=(% style="text-align: center; vertical-align: middle;" %)**Boot process**|=(% style="text-align: center; vertical-align: middle; width: 213px;" %)**Fault phenomenon**|=(% style="text-align: center; vertical-align: middle; width: 163px;" %)**Reason**|=(% style="text-align: center; vertical-align: middle;" %)**Confirmation method**
6 |(% rowspan="5" style="vertical-align:middle" %)(((
7 Power supply
8
9 (L1, L2, L3)
10
11 Turn on control supply (L1C, L2C)
12 )))|(% rowspan="3" style="vertical-align:middle; width:213px" %)(((
13 1. Digital tube does not light up
14 1. Voltage indicator does not light up
15 )))|(% style="vertical-align:middle; width:163px" %)Control terminal is disconnected|(% style="vertical-align:middle" %)(((
16 ✎Rewiring
17
18 ✎L1C and L2C power lines are led separately from the socket
19 )))
20 |(% style="vertical-align:middle; width:163px" %)Control the supply voltage failure|(% style="vertical-align:middle" %)Measures the AC voltage between L1C &L2C.
21 |(% style="vertical-align:middle; width:163px" %)Servo drive fault|(% style="vertical-align:middle" %)Contact the agent or customer service
22 |(% style="vertical-align:middle; width:213px" %)Panel display “Er.xx”|(% colspan="2" style="vertical-align:middle; width:1118px" %)Refer to [[10.2 Handling of faults and warnings during operation>>||anchor="HFaultsandwarningshandlingduringoperation"]]
23 |(% colspan="3" style="vertical-align:middle" %)After removing the fault, the servo drive panel should display "rdy"
24 |(% rowspan="4" style="vertical-align:middle" %)Servo drive enable signal is valid(S-ON is ON)|(% rowspan="2" style="vertical-align:middle; width:213px" %)The axis of servo motor is in a free running state|(% style="vertical-align:middle; width:163px" %)Servo enable signal is invalid|(% style="vertical-align:middle" %)(((
25 ✎Check whether group P06 is set the servo enable signal (DI function 1: S-ON). If it is, check whether the corresponding DI terminal logic is valid. If it is invalid,please make it valid. Refer to __[[Group P06 DI/DO configuration>>https://docs.we-con.com.cn/bin/view/Servo/Manual/02%20VD2%20SA%20Series/09%20Parameters/#HGroupP06DI2FDOconfiguration]]__
26
27 ✎If group P06 parameters have set the servo enable signal, and the corresponding terminal logic is valid, but the panel still displays "rdy", check whether the DI terminal wiring is correct, please refer to__[[ 4 Wiring>>doc:Servo.Manual.02 VD2 SA Series.04 Wiring.WebHome]]__
28 )))
29 |(% style="vertical-align:middle; width:163px" %)Control mode error|(% style="vertical-align:middle" %)Check whether the parameter P00-01 is set correctly
30 |(% style="vertical-align:middle; width:213px" %)Panel display Er.xx|(% colspan="2" style="vertical-align:middle; width:1118px" %)Refer to [[10.2 Handling of faults and warnings during operation>>||anchor="HFaultsandwarningshandlingduringoperation"]]
31 |(% colspan="3" style="vertical-align:middle" %)After troubleshooting, the servo drive panel should display "run"
32 |(% rowspan="2" style="vertical-align:middle" %)Input position instruction|(% style="vertical-align:middle; width:213px" %)The motor does not rotate|(% style="vertical-align:middle; width:163px" %)U0-09 (input instruction pulse number) always displays 0|(% style="vertical-align:middle" %)✎Not input position instruction(((
33 1. Confirm whether DI terminal uses forward drive prohibited (DI function 3: POT) or reverse drive prohibited (DI function 4: NOT).
34 1. Confirm whether DI terminal uses instruction pulse input prohibited (DI function 11: INH)
35 1. When P01-06=0(position instruction source), PLC or other pulse output device do not output pulse. Please use oscilloscope to check whether there is pulse input or check U0-08 (input instruction pulse frequency). Refer to __4 Wiring__
36 1. When P01-06=1(position instruction source), please check whether the parameters of group P07 are set correctly. If yes, please confirm whether the DI function 20 (internal multi-segment position enable signal) and the corresponding DI terminal logic are set to be valid. Refer to __[[Group P07 multi-segment position>>https://docs.we-con.com.cn/bin/view/Servo/Manual/02%20VD2%20SA%20Series/09%20Parameters/#HGroupP07multi-segmentposition]]__
37 )))
38 |(% colspan="3" style="vertical-align:middle" %)After troubleshooting, the servo motor should be able to rotate normally
39 |(% rowspan="3" style="vertical-align:middle" %)The motor does not rotate smoothly at low speed|(% style="vertical-align:middle; width:213px" %)Unstable low speed|(% style="vertical-align:middle; width:163px" %)Unreasonable gain setting|(% style="vertical-align:middle" %)Please adjust the gain.
40 |(% style="vertical-align:middle; width:213px" %)The motor shaft vibrates left and right|(% style="vertical-align:middle; width:163px" %)Load inertia ratio is too large|(% style="vertical-align:middle" %)After the inertia recognition is complete, performs gain adjustment.
41 |(% colspan="3" style="vertical-align:middle" %)After troubleshooting, the servo motor should be able to rotate normally
42 |(% style="vertical-align:middle" %)Normal operation|(% style="vertical-align:middle; width:213px" %)Inaccurate positioning|(% style="vertical-align:middle; width:163px" %)There is a position deviation that does not meet production requirements|(% style="vertical-align:middle" %)(((
43 ✎Confirm** **the U0-09 value (input instruction pulse number) is consistent with the actual one sent by the host computer. If not, please check confirm whether the motor is blocked.
44
45 ✎Confirm whether the device is vibrating. If yes, adjust the gain.
46
47 ✎Confirm whether the coupling at the motor shaft is locked.
48 )))
49
50 == **Speed control mode** ==
51
52 |=(% style="text-align: center; vertical-align: middle;" %)**Boot process**|=(% style="text-align: center; vertical-align: middle;" %)**Fault phenomenon**|=(% style="text-align: center; vertical-align: middle;" %)**Reason**|=(% style="text-align: center; vertical-align: middle;" %)**Confirmation method**
53 |(% rowspan="5" style="vertical-align:middle" %)(((
54 Power supply
55
56 (L1, L2, L3)
57
58 Turn on control supply (L1C, L2C)
59 )))|(% rowspan="3" style="vertical-align:middle" %)(((
60 1. Digital tube does not light up
61 1. Voltage indicator does not light up
62 )))|Control terminal is disconnected|(((
63 ✎Rewiring
64
65 ✎L1C and L2C power lines are led separately from the socket
66 )))
67 |Control the supply voltage failure|Measures the AC voltage between L1C &L2C.
68 |Servo drive fault|Contact the agent or customer service
69 |(% style="vertical-align:middle" %)Panel display “Er.xx”|(% colspan="2" %)Refer to [[10.2 Handling of faults and warnings during operation>>||anchor="HFaultsandwarningshandlingduringoperation"]]
70 |(% colspan="3" style="vertical-align:middle" %)After removing the fault, the servo drive panel should display "rdy"
71 |(% rowspan="4" style="vertical-align:middle" %)Servo drive enable signal is valid(S-ON is ON)|(% rowspan="2" style="vertical-align:middle" %)The axis of servo motor is in a free running state|Servo enable signal is invalid|(((
72 ✎Check whether group P06 is set the servo enable signal (DI function 1: S-ON). If it is, check whether the corresponding DI terminal logic is valid. If it is invalid,please make it valid. Refer to __[[Group P06 DI/DO configuration>>https://docs.we-con.com.cn/bin/view/Servo/Manual/02%20VD2%20SA%20Series/09%20Parameters/#HGroupP06DI2FDOconfiguration]]__
73
74 ✎If group P06 parameters have set the servo enable signal, and the corresponding terminal logic is valid, but the panel still displays "rdy", check whether the DI terminal wiring is correct, please refer to__[[ 4 Wiring>>doc:Servo.Manual.02 VD2 SA Series.04 Wiring.WebHome]]__
75 )))
76 |Control mode error|Check whether the parameter P00-01 is set correctly
77 |(% style="vertical-align:middle" %)Panel display Er.xx|(% colspan="2" %)Refer to [[10.2 Handling of faults and warnings during operation>>||anchor="HFaultsandwarningshandlingduringoperation"]]
78 |(% colspan="3" style="vertical-align:middle" %)After troubleshooting, the servo drive panel should display "run"
79 |(% rowspan="2" style="vertical-align:middle" %)Input torque instruction|(% style="vertical-align:middle" %)The motor does not rotate|U0-03 (input instruction pulse number) always displays 0|(((
80 ✎AI wiring error
81
82 When selecting analog input signal, make sure that the connection of analog input terminal is correct. Refer to__[[ 4 Wiring>>doc:Servo.Manual.02 VD2 SA Series.04 Wiring.WebHome]]__.
83
84 ✎Not input speed instruction or speed instruction abnormal
85
86 1. When selecting analog input signal, please confirm the AI parameters of group P05 is set correct, and then check the analog input voltage signal. It could be observed by oscilloscope or read by monitoring U0-21 and U0-22.
87 1. When the internal speed instruction is given, please confirm P01-02 (internal speed instruction )is 0.
88 1. When using multi-segment speed function, please confirm the internal speed instruction parameters 0 to 7 of group P01 are right.
89 1. Please confirm whether the ZERO-speed clamp function is used for the DI terminal. (DI function 5: ZCLAMP)
90 )))
91 |(% colspan="3" style="vertical-align:middle" %)After troubleshooting, the servo motor should be able to rotate normally
92 |(% rowspan="3" style="vertical-align:middle" %)The motor does not rotate smoothly at low speed|(% style="vertical-align:middle" %)Unstable low speed|Unreasonable gain setting|Please adjust the gain.
93 |(% style="vertical-align:middle" %)The motor shaft vibrates left and right|Load inertia ratio is too large|After the inertia recognition is complete, performs gain adjustment.
94 |(% colspan="3" style="vertical-align:middle" %)After troubleshooting, the servo motor should be able to rotate normally
95
Iris 1.2 96 ✎**Note: **VD2F and VD2L do not support monitoring u0-21 and U0-22.
Wecon 1.1 97
98 == **Torque control mode** ==
99
100 |=(% style="text-align: center; vertical-align: middle;" %)**Boot process**|=(% style="text-align: center; vertical-align: middle;" %)**Fault phenomenon**|=(% style="text-align: center; vertical-align: middle;" %)**Reason**|=(% style="text-align: center; vertical-align: middle;" %)**Confirmation method**
101 |(% rowspan="5" style="vertical-align:middle" %)(((
102 Power supply
103
104 (L1, L2, L3)
105
106 Turn on control supply (L1C, L2C)
107 )))|(% rowspan="3" style="vertical-align:middle" %)(((
108 1. Digital tube does not light up
109 1. Voltage indicator does not light up
110 )))|(% style="vertical-align:middle" %)Control terminal is disconnected|(% style="vertical-align:middle" %)(((
111 ✎Rewiring
112
113 ✎L1C and L2C power lines are led separately from the socket
114 )))
115 |(% style="vertical-align:middle" %)Control the supply voltage failure|(% style="vertical-align:middle" %)Measures the AC voltage between L1C &L2C.
116 |(% style="vertical-align:middle" %)Servo drive fault|(% style="vertical-align:middle" %)Contact the agent or customer service
117 |(% style="vertical-align:middle" %)Panel display “Er.xx”|(% colspan="2" style="vertical-align:middle" %)Refer to [[10.2 Handling of faults and warnings during operation>>||anchor="HFaultsandwarningshandlingduringoperation"]]
118 |(% colspan="3" style="vertical-align:middle" %)After removing the fault, the servo drive panel should display "rdy"
119 |(% rowspan="4" style="vertical-align:middle" %)Servo drive enable signal is valid(S-ON is ON)|(% rowspan="2" style="vertical-align:middle" %)The axis of servo motor is in a free running state|(% style="vertical-align:middle" %)Servo enable signal is invalid|(% style="vertical-align:middle" %)(((
120 ✎Check whether group P06 is set the servo enable signal (DI function 1: S-ON). If it is, check whether the corresponding DI terminal logic is valid. If it is invalid,please make it valid. Refer to __[[Group P06 DI/DO configuration>>https://docs.we-con.com.cn/bin/view/Servo/Manual/02%20VD2%20SA%20Series/09%20Parameters/#HGroupP06DI2FDOconfiguration]]__
121
122 ✎If group P06 parameters have set the servo enable signal, and the corresponding terminal logic is valid, but the panel still displays "rdy", check whether the DI terminal wiring is correct, please refer to__[[ 4 Wiring>>doc:Servo.Manual.02 VD2 SA Series.04 Wiring.WebHome]]__
123 )))
124 |(% style="vertical-align:middle" %)Control mode error|(% style="vertical-align:middle" %)Check whether the parameter P00-01 is set correctly
125 |(% style="vertical-align:middle" %)Panel display Er.xx|(% colspan="2" style="vertical-align:middle" %)Refer to [[10.2 Handling of faults and warnings during operation>>||anchor="HFaultsandwarningshandlingduringoperation"]]
126 |(% colspan="3" style="vertical-align:middle" %)After troubleshooting, the servo drive panel should display "run"
127 |(% rowspan="2" style="vertical-align:middle" %)Input speed instruction|(% style="vertical-align:middle" %)The motor does not rotate|(% style="vertical-align:middle" %)U0-03 (input instruction pulse number) always displays 0|(% style="vertical-align:middle" %)(((
128 ✎AI wiring error
129
130 When selecting analog input signal, make sure that the connection of analog input terminal is correct. Refer to__[[ 4 Wiring>>doc:Servo.Manual.02 VD2 SA Series.04 Wiring.WebHome]]__.
131
132 ✎Not input torque instruction
133
134 1. When selecting analog input signal, please confirm the AI parameters of group P05 is set correct, and then check the analog input voltage signal. It could be observed by oscilloscope or read by monitoring U0-21 and U0-22.
135 1. When the internal speed instruction is given, please confirm P01-08 (torque instruction keyboard set value) is 0.
136 )))
137 |(% colspan="3" style="vertical-align:middle" %)After troubleshooting, the servo motor should be able to rotate normally
138 |(% rowspan="3" style="vertical-align:middle" %)The motor does not rotate smoothly at low speed|(% style="vertical-align:middle" %)Unstable low speed|(% style="vertical-align:middle" %)Unreasonable gain setting|(% style="vertical-align:middle" %)Please adjust the gain.
139 |(% style="vertical-align:middle" %)The motor shaft vibrates left and right|(% style="vertical-align:middle" %)Load inertia ratio is too large|(% style="vertical-align:middle" %)After the inertia recognition is complete, performs gain adjustment.
140 |(% colspan="3" %)After troubleshooting, the servo motor should be able to rotate normally
141
Iris 1.2 142 ✎**Note: **VD2F and VD2L do not support monitoring u0-21 and U0-22.
Wecon 1.1 143
144 = **Faults and warnings handling during operation ** =
145
146 == **Overview** ==
147
Iris 1.2 148 The faults and warnings of Wecon VD2 series servo drives are graded according to their severity, which can be divided into four grades: Category 1> Category 2> Category 3 > Category 4. Severity level: Category 1> Category 2> Category 3 > Category 4, the specific classifications are as follows:
Wecon 1.1 149
150 * Category 1: faults cannot be cleared;
151 * Category 2: faults are clearable;
152 * Category 3: faults are clearable;
153 * Category 4: warnings are clearable.
154
155 Among them, "clearable" means that the panel stops the fault display state by giving a "clear signal". The specific operations are as follows:
156
157 1. Set the function code P10-03=1 (fault clearing) or use DI function 02 (02-A-CLR, fault and warning clearing) and set it to logic valid, which can stop the fault display on the panel.
158 1. The clearing method of category 2 and category 3 clearable faults: first turn off the servo enable signal (set S-ON to OFF), then set P10-03=1 or use DI function 02.
159 1. The clearing method of category 4 of clearable warnings: set P10-03=1 or use DI function 02.
160
161 |(% style="text-align:center; vertical-align:middle" %)(((
162 (% style="text-align:center" %)
163 [[image:ksjakfjk.png]]
164 )))
165 |For some faults and warnings, you must change the settings to eliminate the causes before they can be cleared, but clearing does not mean that the changes take effect. For the changes that need to be re-powered to take effect, the power must be re-powered. For the changes that need to be stopped to take effect, the servo enable must be turned off. After the change takes effect, the servo drive can operate normally.
166
167 Associated function codes
168
169 |=(% style="text-align: center; vertical-align: middle; width: 131px;" %)**Function Code**|=(% style="text-align: center; vertical-align: middle; width: 160px;" %)**Name**|=(% style="text-align: center; vertical-align: middle; width: 172px;" %)(((
170 **Setting method**
171 )))|=(% style="text-align: center; vertical-align: middle; width: 181px;" %)(((
172 **Effective time**
173 )))|=(% style="text-align: center; vertical-align: middle; width: 138px;" %)**Default value**|=(% style="text-align: center; vertical-align: middle; width: 96px;" %)**Range**|=(% style="text-align: center; vertical-align: middle; width: 552px;" %)**Definition**|=(% style="text-align: center; vertical-align: middle;" %)**Unit**
174 |(% style="text-align:center; vertical-align:middle; width:131px" %)P10-03|(% style="text-align:center; vertical-align:middle; width:160px" %)Fault clearing|(% style="text-align:center; vertical-align:middle; width:172px" %)(((
175 Operation setting
176 )))|(% style="text-align:center; vertical-align:middle; width:181px" %)(((
177 immediately Effective
178 )))|(% style="text-align:center; vertical-align:middle; width:138px" %)0|(% style="text-align:center; vertical-align:middle; width:96px" %)0 to 1|(% style="width:552px" %)(((
179 0: No operation
180
181 1: For clearable faults, after the cause of fault is removed, and write 1 to the function code, the drive will stop the fault display and enter the Rdy (or RUN) state again.
182
183 ✎**Note:** If the servo S-ON is valid, when the fault is removed and cleared, the servo will directly enter the Run state. When performing fault clearing actions, be sure to stop sending control instructions such as pulses to ensure personal safety.
184 )))|(% style="text-align:center; vertical-align:middle" %)-
185
186 Associated function number:
187
188 |(% style="text-align:center; vertical-align:middle" %)**Code**|(% style="text-align:center; vertical-align:middle; width:108px" %)**Name**|(% style="text-align:center; vertical-align:middle; width:303px" %)**Function name**|(% style="text-align:center; vertical-align:middle; width:779px" %)**Function**
189 |(% style="text-align:center; vertical-align:middle" %)2|(% style="text-align:center; vertical-align:middle; width:108px" %)A-CLR|(% style="text-align:center; vertical-align:middle; width:303px" %)Fault and warning clearing|(% style="width:779px" %)(((
190 DI port logic is invalid, no reset faults and warnings
191
192 DI port logic is valid, reset faults and warnings
193 )))
194
195 VD2 series servo drives have a fault recording function, which could record the last 5 faults and the last 5 warning names and the status parameters of servo drive when the fault or warning occurs. After the fault or warning is cleared, the fault record will still save the fault and warning.
196
197 The current fault code could be viewed through the monitoring parameter U1-01, and the current warning code could be viewed through U1-02. The monitoring U1-16 to U1-25 could display the last 5 fault codes and warning codes. Please refer to __[[Group U1 Warning monitoring>>https://docs.we-con.com.cn/bin/view/Servo/Manual/02%20VD2%20SA%20Series/09%20Parameters/#HGroupU1Warningmonitoring]]__.
198
199 == **Fault and warning code table** ==
200
201 **The first category (category 1 for short) The fault could not be cleared**
202
203 |=(% style="width: 114px;" %)**Category**|=(% style="width: 300px;" %)**Error name**|=(% style="width: 92px;" %)**Fault code**|=(% style="width: 330px;" %)**Content**|=(% style="width: 105px;" %)**Whether Clearable**|=(% style="width: 135px;" %)**Operation**
204 |(% style="width:114px" %)Category 1|(% style="width:300px" %)Parameter destruction|(% style="width:92px" %)Er.01|(% style="width:330px" %)Abnormal servo internal parameters|(% style="width:105px" %)No|(% style="width:135px" %)Stop immediately
205 |(% style="width:114px" %)Category 1|(% style="width:300px" %)Parameter storage error|(% style="width:92px" %)Er.02|(% style="width:330px" %)Abnormal servo internal parameters|(% style="width:105px" %)No|(% style="width:135px" %)Stop immediately
206 |(% style="width:114px" %)Category 1|(% style="width:300px" %)ADC reference source faults|(% style="width:92px" %)Er.03|(% style="width:330px" %)Abnormal ADC reference source|(% style="width:105px" %)No|(% style="width:135px" %)Stop immediately
207 |(% style="width:114px" %)Category 1|(% style="width:300px" %)AD current sampling conversion error|(% style="width:92px" %)Er.04|(% style="width:330px" %)AD current sampling conversion error|(% style="width:105px" %)No|(% style="width:135px" %)Stop immediately
208 |(% style="width:114px" %)Category 1|(% style="width:300px" %)Abnormal FPGA communication|(% style="width:92px" %)Er.05|(% style="width:330px" %)Abnormal FPGA communication|(% style="width:105px" %)No|(% style="width:135px" %)Stop immediately
209 |(% style="width:114px" %)Category 1|(% style="width:300px" %)Wrong FPGA program version|(% style="width:92px" %)Er.06|(% style="width:330px" %)Wrong FPGA program version|(% style="width:105px" %)No|(% style="width:135px" %)Stop immediately
210 |(% style="width:114px" %)Category 1|(% style="width:300px" %)Clock abnormal|(% style="width:92px" %)Er.07|(% style="width:330px" %)Clock abnormal|(% style="width:105px" %)No|(% style="width:135px" %)Stop immediately
211 |(% style="width:114px" %)Category 1|(% style="width:300px" %)ADC conversion undone|(% style="width:92px" %)Er.60|(% style="width:330px" %)ADC conversion error|(% style="width:105px" %)No|(% style="width:135px" %)Stop immediately
212 |(% style="width:114px" %)Category 1|(% style="width:300px" %)Internal software fault|(% style="width:92px" %)Er.61|(% style="width:330px" %)Abnormal servo internal software|(% style="width:105px" %)No|(% style="width:135px" %)Stop immediately
213 |(% style="width:114px" %)Category 1|(% style="width:300px" %)Internal software fault|(% style="width:92px" %)Er.62|(% style="width:330px" %)Abnormal servo internal software|(% style="width:105px" %)No|(% style="width:135px" %)Stop immediately
214 |(% style="width:114px" %)Category 1|(% style="width:300px" %)Internal software fault|(% style="width:92px" %)Er.63|(% style="width:330px" %)Abnormal servo internal software|(% style="width:105px" %)No|(% style="width:135px" %)Stop immediately
215 |(% style="width:114px" %)Category 1|(% style="width:300px" %)Internal software fault|(% style="width:92px" %)Er.64|(% style="width:330px" %)Abnormal servo internal software|(% style="width:105px" %)No|(% style="width:135px" %)Stop immediately
216 |(% style="width:114px" %)Category 1|(% style="width:300px" %)Internal software fault|(% style="width:92px" %)Er.65|(% style="width:330px" %)Abnormal servo internal software|(% style="width:105px" %)No|(% style="width:135px" %)Stop immediately
217 |(% style="width:114px" %)Category 1|(% style="width:300px" %)Motor model error|(% style="width:92px" %)Er.26|(% style="width:330px" %)Motor model error|(% style="width:105px" %)No|(% style="width:135px" %)Stop immediately
218 |(% style="width:107px" %)Category 1|(% style="width:233px" %)Encoder disconnection|Er.27|The encoder cable is incorrectly connected|No|Stop immediately
219 |(% style="width:114px" %)Category 1|(% style="width:300px" %)Encoder Z pulse lost|(% style="width:92px" %)Er.28|(% style="width:330px" %)Encoder Z pulse lost|(% style="width:105px" %)No|(% style="width:135px" %)Stop immediately
220 |(% style="width:114px" %)Category 1|(% style="width:300px" %)Encoder UVW signal error|(% style="width:92px" %)Er.30|(% style="width:330px" %)Encoder UVW signal error|(% style="width:105px" %)No|(% style="width:135px" %)Stop immediately
221 |(% style="width:114px" %)Category 1|(% style="width:300px" %)(((
222 Exceeds motor
223
224 maximum speed
225 )))|(% style="width:92px" %)Er.32|(% style="width:330px" %)(((
226 Exceeds motor
227
228 maximum speed
229 )))|(% style="width:105px" %)No|(% style="width:135px" %)Stop immediately
230 |(% style="width:114px" %)Category 1|(% style="width:300px" %)Over current|(% style="width:92px" %)Er.20|(% style="width:330px" %)Servo drive hardware overcurrent|(% style="width:105px" %)No|(% style="width:135px" %)Stop immediately
231 |(% style="width:114px" %)Category 1|(% style="width:300px" %)The brake resistor is turned on abnormally|(% style="width:92px" %)Er.24|(% style="width:330px" %)The brake resistor of servo drive is turned on abnormally|(% style="width:105px" %)No|(% style="width:135px" %)Stop immediately
Iris 1.3 232 |Category 1| Motor model error|Er.26| Wrong servo motor model|No|Stop immediately
233 |Category 1| Encoder disconnection|Er.27| Encoder cable wiring errors|No|Stop immediately
234 |Category 1| Encoder Z-pulse loss|Er.28| Encoder Z-pulse loss|No|Stop immediately
235 |Category 1| Encoder UVW signal error|Er.30| Encoder UVW signal error|No|Stop immediately
236 |Category 1| Exceeding the maximum speed of the motor|Er.32| Motor speed exceeding the maximum speed limit|No|Stop immediately
237 |Category 1| ADC conversion not completed|Er.60| The ADC conversion is abnormal|No|Stop immediately
238 |Category 1| Internal software fault|Er.61| Abnormality occurred in the internal program of the servo unit|No|Stop immediately
239 |Category 1| Internal software fault|Er.62| Abnormality occurred in the internal program of the servo unit|No|Stop immediately
240 |Category 1| Internal software fault|Er.63| Abnormality occurred in the internal program of the servo unit|No|Stop immediately
241 |Category 1| Internal software fault|Er.64| Abnormality occurred in the internal program of the servo unit|No|Stop immediately
242 |Category 1| Internal software fault|Er.65| Abnormality occurred in the internal program of the servo unit|No|Stop immediately
Wecon 1.1 243
244 **The 2nd category (category 2 for short) clearable faults**
245
246 |=(% style="width: 107px;" %)**Category**|=(% style="width: 233px;" %)**Error name**|=**Fault code**|=**Content**|=**Whether Clearable**|=**Operation**
247 |(% style="width:107px" %)Category 2|(% style="width:233px" %)Main power supply overvoltage|Er.22|Main power supply overvoltage|Yes|Stop immediately
248 |(% style="width:107px" %)Category 2|(% style="width:233px" %)Power line disconnection|Er.31|The power cable is incorrectly connected|Yes|Stop immediately
249
250 **The 3rd Category (category 3 for short) clearable faults**
251
252 |=(% style="width: 109px;" %)**Category**|=(% style="width: 277px;" %)**Error name**|=**Fault code**|=**Content**|=**Whether Clearable**|=**Operation**
253 |(% style="width:109px" %)Category 3|(% style="width:277px" %)Main power supply under voltage|Er.21|Main power supply under voltage|Yes|Stop immediately
254 |(% style="width:109px" %)Category 3|(% style="width:277px" %)Braking resistor is not connected|Er.23|Braking resistor is not connected|Yes|Stop immediately
255 |(% style="width:109px" %)Category 3|(% style="width:277px" %)Braking resistor resistance is too large|Er.25|Braking resistor resistance is too large|Yes|Stop immediately
256 |(% style="width:109px" %)Category 3|(% style="width:277px" %)Power module is over temperature|Er.33|Power module is over temperature|Yes|Stop immediately
257 |(% style="width:109px" %)Category 3|(% style="width:277px" %)Motor overload protection|Er.34|Motor overload protection|Yes|Stop immediately
258 |(% style="width:109px" %)Category 3|(% style="width:277px" %)Electronic gear ratio exceeds limit|Er.35|Electronic gear ratio exceeds limit|Yes|Stop immediately
259 |(% style="width:109px" %)Category 3|(% style="width:277px" %)Position deviation is too large|Er.36|Position deviation is too large|Yes|Stop immediately
260 |(% style="width:109px" %)Category 3|(% style="width:277px" %)Torque saturation abnormal|Er.37|Torque saturation abnormal|Yes|Stop immediately
261 |(% style="width:109px" %)Category 3|(% style="width:277px" %)(((
262 Main circuit electricity
263
264 is lack of phase
265 )))|Er.38|(((
266 Main circuit electricity
267
268 is lack of phase
269 )))|Yes|Stop immediately
270 |(% style="width:109px" %)Category 3|(% style="width:277px" %)Emergency stop|Er.39|Triggered the emergency stop signal|Yes|Stop immediately
271 |(% style="width:109px" %)Category 3|(% style="width:277px" %)Encoder battery failure|Er.40|Encoder battery failure|Yes|Stop immediately
272 |(% style="width:109px" %)Category 3|(% style="width:277px" %)Motor (encoder) over temperature|Er.41|Motor (encoder) over temperature|Yes|Stop immediately
273 |(% style="width:109px" %)Category 3|(% style="width:277px" %)Encoder write faults|Er.42|The encoder fails to write data|Yes|Stop immediately
274 |(% style="width:109px" %)Category 3|(% style="width:277px" %)Drive overload alarm|Er.43|The drive exceeds the power limit for more than 20 minutes|Yes|Stop immediately
275 |(% style="width:109px" %)Category 3|(% style="width:277px" %)Drive stall over temperature alarm|Er.45|The drive controls the motor and it is stalled|Yes|Stop immediately
276
277 **The 4th category (category 4 for short) clearable warnings**
278
279 |=(% style="width: 100px;" %)**Category**|=(% style="width: 294px;" %)**Error name**|=**Fault code**|=(% style="width: 392px;" %)**Content**|=(% style="width: 96px;" %)**Whether Clearable**|=(% style="width: 115px;" %)**Operation**
Iris 1.4 280 |Category 4|Drive over-power alarm|A-80|The driver exceeds the power limit for more than 5 seconds|Yes|Continue to run
Wecon 1.1 281 |(% style="width:100px" %)Category 4|(% style="width:294px" %)Overspeed alarm|A-81|(% style="width:392px" %)Motor exceeds the speed limit|(% style="width:96px" %)Yes|(% style="width:115px" %)Continue to run
282 |(% style="width:100px" %)Category 4|(% style="width:294px" %)Overload|A-82|(% style="width:392px" %)The motor was run continuously with a torque exceeding the rated value|(% style="width:96px" %)Yes|(% style="width:115px" %)Continue to run
283 |(% style="width:100px" %)Category 4|(% style="width:294px" %)Braking resistor is over temperature or overloaded|A-83|(% style="width:392px" %)Braking resistor is over temperature or overloaded|(% style="width:96px" %)Yes|(% style="width:115px" %)Continue to run
284 |(% style="width:100px" %)Category 4|(% style="width:294px" %)Parameter modification that needs to be powered on again|A-84|(% style="width:392px" %)Modify the parameter that needs to be powered on again|(% style="width:96px" %)Yes|(% style="width:115px" %)Continue to run
285 |(% style="width:100px" %)Category 4|(% style="width:294px" %)Receive position pulse when servo is OFF|A-85|(% style="width:392px" %)Servo drive receives position pulse when it is OFF|(% style="width:96px" %)Yes|(% style="width:115px" %)Continue to run
286 |(% style="width:100px" %)Category 4|(% style="width:294px" %)Input pulse frequency is too high|A-86|(% style="width:392px" %)Input pulse frequency is too high|(% style="width:96px" %)Yes|(% style="width:115px" %)Continue to run
287 |(% style="width:100px" %)Category 4|(% style="width:294px" %)(((
288 Main circuit momentary
289
290 power off
291 )))|A-88|(% style="width:392px" %)(((
292 Main circuit momentary
293
294 power off
295 )))|(% style="width:96px" %)Yes|(% style="width:115px" %)Continue to run
296 |(% style="width:100px" %)Category 4|(% style="width:294px" %)DI port configuration is duplicate|A-89|(% style="width:392px" %)DI port configuration is duplicate|(% style="width:96px" %)Yes|(% style="width:115px" %)Continue to run
297 |(% style="width:100px" %)Category 4|(% style="width:294px" %)DO port configuration is duplicate|A-90|(% style="width:392px" %)DO port configuration is duplicate|(% style="width:96px" %)Yes|(% style="width:115px" %)Continue to run
298 |(% style="width:100px" %)Category 4|(% style="width:294px" %)Parameter modification is too frequent|A-91|(% style="width:392px" %)Parameter modification is too frequent|(% style="width:96px" %)Yes|(% style="width:115px" %)Continue to run
299 |(% style="width:100px" %)Category 4|(% style="width:294px" %)(((
300 low encoder battery voltage
301
302 Warning
303 )))|A-92|(% style="width:392px" %)The battery voltage of encoder is less than 3.1V|(% style="width:96px" %)Yes|(% style="width:115px" %)Continue to run
304 |(% style="width:100px" %)Category 4|(% style="width:294px" %)(((
305 Encoder read and write
306
307 check abnormal and frequency is too high
308 )))|A-93|(% style="width:392px" %)(((
309 Encoder read and write
310
311 check abnormal and frequency is too high
312 )))|(% style="width:96px" %)Yes|(% style="width:115px" %)Continue to run
313
314 = **Troubleshooting** =
315
316 **Er.01 Parameter destruction**
317
318 Fault
319
320 |=(% style="width: 460px;" %)**Servo drive panel display**|=(% style="width: 615px;" %)**Fault name**
321 |(% style="width:460px" %)(((
322 (% style="text-align:center" %)
323 [[image:image-20220709173736-1.png]]
324 )))|(% style="width:615px" %)Parameter destruction
325
326 Troubleshooting
327
328 |=(% style="width: 310px;" %)**Reason**|=(% style="width: 516px;" %)**Troubleshooting methods**|=(% style="width: 250px;" %)**Handling**
329 |(% style="width:310px" %)EEPROM could not be read and written|(% style="width:516px" %)Factory reset the parameter (P10-02=1) and power on again. If the servo drive still alarms after multiple operations, it is faulty.|(% style="width:250px" %)Please contact the technician.
330
331 **Er.02 Parameter storage error**
332
333 Fault
334
335 |=(% style="width: 604px;" %)**Servo drive panel display**|=(% style="width: 817px;" %)**Fault name**
336 |(% style="width:604px" %)(((
337 (% style="text-align:center" %)
338 [[image:image-20220709165407-2.png]]
339 )))|(% style="width:817px" %)Parameter storage error
340
341 Troubleshooting
342
343 |=(% style="width: 245px;" %)**Reason**|=(% style="width: 423px;" %)**Troubleshooting methods**|=(% style="width: 408px;" %)**Handling**
344 |(% style="width:245px" %)Firmware upgraded|(% style="width:423px" %)Check whether the program has been upgraded.|(% style="width:408px" %)Power on the servo drive again
345 |(% style="width:245px" %)Parameter read and write exceptions|(% style="width:423px" %)After a parameter is changed, power it on again and check whether the parameter is saved|(% style="width:408px" %)If the parameters are not saved after multiple power-on, contact technician.
346 |(% style="width:245px" %)Servo drive firmware faulty|(% style="width:423px" %)(((
347 Check if the servo drive monitoring quantity U2-04 (firmware version) is in the following range.
348
349 VD2-0xxSA1G model: earlier than V1.14.
350
351 VD2F-0xxSA1P model: earlier than V1.02
352 )))|(% style="width:408px" %)(((
353 VD2-0xxSA1G model: Contact manufacturer to upgrade the firmware to V1.14 and above.
354
355 VD2F-0xxSA1P model: Contact technician to upgrade the firmware to V1.02 and above.
356 )))
357
358 **Er.03 ADC reference source fault**
359
360 Fault
361
362 |=(% style="width: 459px;" %)**Servo drive panel display**|=(% style="width: 617px;" %)**Fault name**
363 |(% style="width:459px" %)(((
364 (% style="text-align:center" %)
365 [[image:image-20220709165412-3.png]]
366 )))|(% style="width:617px" %)ADC reference source fault
367
368 Troubleshooting
369
370 |=(% style="width: 284px;" %)**Reason**|=(% style="width: 495px;" %)**Troubleshooting methods**|=(% style="width: 297px;" %)**Handling**
371 |(% style="width:284px" %)The internal analog reference source of the drive is not accurate|(% style="width:495px" %)Factory reset the parameter (P10-02=1) and power on again. If the servo drive still alarms after multiple operations, it is faulty.|(% style="width:297px" %)If there is still alarm after multiple power-on, contact the technician.
372
373 **Er.04 AD current sampling conversion error**
374
375 Fault
376
377 |=**Servo drive panel display**|=**Fault name**
378 |(((
379 (% style="text-align:center" %)
380 [[image:image-20220709165421-4.png]]
381 )))|AD current sampling conversion error
382
383 Troubleshooting
384
385 |=(% style="width: 248px;" %)**Reason**|=(% style="width: 508px;" %)**Troubleshooting methods**|=(% style="width: 320px;" %)**Handling**
386 |(% style="width:248px" %)Current sampling timeout|(% rowspan="2" style="width:508px" %)Factory reset the parameter (P10-02=1) and power on again. If the servo drive still alarms after multiple operations, it is faulty.|(% rowspan="2" style="width:320px" %)If there is still alarm after multiple power-on, contact the technician.
387 |(% style="width:248px" %)current sensor error
388
389 **Er.05 FPGA communication abnormal**
390
391 Fault
392
393 |=(% style="width: 467px;" %)**Servo drive panel display**|=(% style="width: 608px;" %)**Fault name**
394 |(% style="width:467px" %)(((
395 (% style="text-align:center" %)
396 [[image:image-20220709165428-5.png]]
397 )))|(% style="width:608px" %)FPGA communication abnormal
398
399 Troubleshooting
400
401 |=(% style="width: 253px;" %)**Reason**|=(% style="width: 504px;" %)**Troubleshooting methods**|=**Handling**
402 |(% style="width:253px" %)FPGA communication abnormal|(% style="width:504px" %)Factory reset the parameter (P10-02=1) and power on again. If the servo drive still alarms after multiple operations, it is faulty.|If there is still alarm after multiple power-on, contact the technician.
403
404 **Er.06 Wrong FPGA program version**
405
406 Fault
407
408 |=(% style="width: 460px;" %)**Servo drive panel display**|=(% style="width: 615px;" %)**Fault name**
409 |(% style="width:460px" %)(((
410 (% style="text-align:center" %)
411 [[image:image-20220709165434-6.png]]
412 )))|(% style="width:615px" %)Wrong FPGA program version
413
414 Troubleshooting
415
416 |=**Reason**|=(% style="width: 482px;" %)**Troubleshooting methods**|=(% style="width: 327px;" %)**Handling**
417 |The FPGA program version does not match firmware version|(% style="width:482px" %)Check whether the monitoring quantity of servo drive U2-04 (firmware version) and U2-05 (hardware version) conform to the following table|(% style="width:327px" %)Contact technical to upgrade FPGA (hardware version)
418 |Servo drive fault|(% style="width:482px" %)Factory reset the parameter (P10-02=1) and power on again. If the servo drive still alarms after multiple operations, it is faulty.|(% style="width:327px" %)If there is still alarm after multiple power-on, contact the technician.
419
420 |=**Firmware version**|=**Hardware version**
421 |1.00|1.00
422 |1.10|1.01
423 |1.11|1.01
424 |1.12|1.01
425 |1.13|1.01
426 |1.14|1.01
427
428 Table 10-1 The firmware version and hardware version relationship of VD2-0SA1G servo drive
429
430 **Er.07 Clock abnormal**
431
432 Fault
433
434 |=(% style="width: 475px;" %)**Servo drive panel display**|=(% style="width: 600px;" %)**Fault name**
435 |(% style="width:475px" %)(((
436 (% style="text-align:center" %)
437 [[image:image-20220709165440-7.png]]
438 )))|(% style="width:600px" %)Clock abnormal
439
440 Troubleshooting
441
442 |=(% style="width: 226px;" %)**Reason**|=(% style="width: 492px;" %)**Troubleshooting methods**|=(% style="width: 358px;" %)**Handling**
443 |(% rowspan="2" style="width:226px" %)External interference|(% style="width:492px" %)Check for strong magnetic fields nearby|(% style="width:358px" %)Eliminate nearby strong magnetic interference
444 |(% style="width:492px" %)Check whether there are sources of interference such as power supply inverter equipment nearby|(% style="width:358px" %)Separate strong and weak power as much as possible, with good ground contact between motor and servo drive, and keep away from power cable wiring.
445 |(% style="width:226px" %)Servo drive fault|(% style="width:492px" %)Factory reset the parameter (P10-02=1) and power on again. If the servo drive still alarms after multiple operations, it is faulty.|(% style="width:358px" %)If there is still alarm after multiple power-on, contact the technician.
446
Iris 1.4 447 **Er.19 Overcurrent**
448
449
450 Fault
451
452 |**Servo drive panel display**|**Fault name**
453 |[[image:1757064155433-166.png]]|Software overcurrent
454
455 Troubleshooting
456
457 |**Reason**|**Troubleshooting methods**|**Handling**
458 |The UVW phase sequence of motor power cable is incorrect|Check whether the phase sequence of the motor power cable on the servo drive side and motor side corresponds to each other.|Connect correctly according to UVW on the drive side and UVW on the motor side
459 |Motor power cables are short-circuited|Check whether power cable UVW is short-circuited to PE|Replace motor power cable
460 |The motor power cable wiring port is poorly contacted|Check whether the motor power cable connection port is connected reliably|Tighten the fixing screws of the motor power cable connection ports
461 |(% rowspan="4" %)Abnormal braking resistance|Internal brake resistance wiring error: check whether C, D are connected to the short cap and the contact is normal|Connect the short cap or short wire between C and D reliably
462 |External braking resistor wiring error: Check whether the external resistor is connected reliably between P+ and C.|External braking resistance is reliably strung between P+ and C
463 |Short-circuit of the built-in brake resistance: Check whether the built-in brake resistance is short-circuited.|(((
464 Remove the shorting cap between C and D, and reliably string the external braking resistor of equal resistance between P+ and C.
465
466 Contact technician to replace the internal braking resistor
467 )))
468 |The resistance value of the external braking resistor is too small: Test the resistance value of the external braking resistor actually selected and compare it with the recommended braking resistor to confirm whether the resistance value of the actual resistor is too small|Choose a suitable external braking resistor
469 |(% rowspan="3" %)Encoder wiring error; loose plug|Check whether the cable port (CN1) of the encoder is properly connected|Tighten the fixing screws on the CN1 port
470 |Check whether the servo drive CN1 port jack is deformed|If the cable is deformed, replace the cable or its port
471 |Check whether both ends of the rectangular connector are reliably connected|Make sure that both ends of the rectangular connector are connected reliably; Replace it with an encoder cable with higher connection reliability.
472 |(% rowspan="2" %)Unreasonable parameter settings|Check that the 2003-01 load inertia ratio and 2003-02 (load rigidity class) settings are reasonable.|(((
473 Set 2003-01 (load inertia ratio) to a reasonable
474
475 value and appropriately adjusted 2003-02 (Load Rigidity Level) setting value.
476 )))
477 |Check whether the gain parameters are set properly, resulting in overshoot|Adjust gain parameters reasonably
478 |Frequent acceleration and deceleration|Check whether the acceleration and deceleration motion is frequent or the acceleration and deceleration time is too small|Appropriately extend the acceleration and deceleration time
479 |Internal servo drive fault|Cross-verification. Use the normal motor, encoder cable to connect to the servo drive, only connect the encoder cable. If the servo drive still alarm, it is failure.|Contact technician for repair
480
Wecon 1.1 481 **Er.20 Overcurrent**
482
483 Fault
484
485 |=(% style="width: 470px;" %)**Servo drive panel display**|=(% style="width: 605px;" %)**Fault name**
486 |(% style="width:470px" %)(((
487 (% style="text-align:center" %)
488 [[image:image-20220709165445-8.png]]
489 )))|(% style="width:605px" %)Overcurrent
490
491 Troubleshooting
492
493 |=(% style="width: 249px;" %)**Reason**|=(% style="width: 481px;" %)**Troubleshooting methods**|=(% style="width: 346px;" %)**Handling**
494 |(% style="width:249px" %)The UVW phase sequence of motor power cable is incorrect|(% style="width:481px" %)Check whether the phase sequence of the motor power cable on the servo drive side and motor side corresponds to each other.|(% style="width:346px" %)Connect correctly according to UVW on the drive side and UVW on the motor side
495 |(% style="width:249px" %)Motor power lines are short-circuited|(% style="width:481px" %)Check whether power line UVW is short-circuited to PE|(% style="width:346px" %)Replace motor power line
496 |(% style="width:249px" %)The motor power line wiring port is poorly contacted|(% style="width:481px" %)Check whether the motor power line connection port is connected reliably|(% style="width:346px" %)Tighten the fixing screws of the motor power line connection ports
497 |(% rowspan="4" style="width:249px" %)Abnormal braking resistance|(% style="width:481px" %)Internal brake resistance wiring error: check whether C, D are connected to the short cap and the contact is normal|(% style="width:346px" %)Connect the short cap or short wire between C and D reliably
498 |(% style="width:481px" %)External braking resistor wiring error: Check whether the external resistor is connected reliably between P+ and C.|(% style="width:346px" %)External braking resistance is reliably strung between P+ and C
499 |(% style="width:481px" %)Short-circuit of the built-in brake resistance: Check whether the built-in brake resistance is short-circuit.|(% style="width:346px" %)(((
500 Remove the shorting cap between C and D, and reliably string the external braking resistor of equal resistance between P+ and C.
501
502 Contact technician to replace the internal braking resistor
503 )))
504 |(% style="width:481px" %)The resistance value of the external braking resistor is too small: Test the resistance value of the external braking resistor actually selected and compare it with the recommended braking resistor to confirm whether the resistance value of the actual resistor is too small|(% style="width:346px" %)Choose a suitable external braking resistor
505 |(% rowspan="3" style="width:249px" %)Encoder wiring error; loose plug|(% style="width:481px" %)Check whether the cable port (CN1) of the encoder is properly connected|(% style="width:346px" %)Tighten the fixing screws on the CN1 port
506 |(% style="width:481px" %)Check whether the servo drive CN1 port jack is deformed|(% style="width:346px" %)If the cable is deformed, replace the cable or its port
507 |(% style="width:481px" %)Check whether both ends of the rectangular connector are reliably connected|(% style="width:346px" %)Make sure that both ends of the rectangular connector are connected reliably; Replace it with an encoder cable with higher connection reliability.
508 |(% rowspan="2" style="width:249px" %)Unreasonable parameter settings|(% style="width:481px" %)Check whether P03-02 (Load rigidity Level) is set properly|(% style="width:346px" %)Reduce the P03-02 (load stiffness level) setting value appropriately
509 |(% style="width:481px" %)Check whether the gain parameters are set properly, resulting in overshoot|(% style="width:346px" %)Adjust gain parameters reasonably
510 |(% style="width:249px" %)Frequent acceleration and deceleration|(% style="width:481px" %)Check whether the acceleration and deceleration motion is frequent or the acceleration and deceleration time is too small|(% style="width:346px" %)Appropriately extend the acceleration and deceleration time
511 |(% style="width:249px" %)Internal servo drive fault|(% style="width:481px" %)Cross-verification. Use the normal motor, encoder cable to connect to the servo drive, only connect the encoder cable. If the servo drive still alarm, it is failure.|(% style="width:346px" %)Contact technician for repair
512
513 **Er.21 Main power supply undervoltage**
514
515 Fault
516
517 |=(% style="width: 467px;" %)**Servo drive panel display**|=(% style="width: 608px;" %)**Fault name**
518 |(% style="width:467px" %)(((
519 (% style="text-align:center" %)
520 [[image:image-20220709165459-10.png]]
521 )))|(% style="width:608px" %)Main power supply undervoltage
522
523 Reason: DC bus voltage is lower than the fault value.
524
525 * 220V drive: DC bus voltage normal value is 310V; DC bus voltage fault value is 200V.
526 * 380V drive: DC bus voltage normal value is 540V; DC bus voltage fault value is 420V.
527
528 Troubleshooting
529
530 |=(% style="width: 255px;" %)**Reason**|=(% style="width: 466px;" %)**Troubleshooting methods**|=(% style="width: 355px;" %)**Handling**
531 |(% style="width:255px" %)Power-off when VD2A drive is enabled|(% style="width:466px" %)Check whether the servo drive is Power off when logic is valid.and the S-ON function is enabled in the P06 “DIDO Function configuration parameter”.|(% style="width:355px" %)It belongs to servo internal software logic. When the indicator light on the servo drive panel goes out automatically, the alarm will be removed automatically.
532 |(% style="width:255px" %)The power supply is unstable or OFF.|(% style="width:466px" %)Check whether the drive input power specifications meet the following specifications:
533 220V drive: Valid value is 198V to 242V.
534 380V drive: Valid value is 342V to 440V.|(% style="width:355px" %)Use after the power supply is stable;
535 Increase power supply capacity
536 |(% style="width:255px" %)The voltage drops during operation of the servo drive|(% style="width:466px" %)Check whether the servo drive shares the same power supply with other high loads|(% style="width:355px" %)(((
537 Turn off other loads from the same main circuit power supply.
538
539 Separate power supply for servo drives
540 )))
541 |(% style="width:255px" %)Missing phase (3-phase power supply operating on single-phase power)|(% style="width:466px" %)(((
542 Check if the main circuit wiring is correct
543
544 VD2A: single-phase 220V input connected to L1, L3.
545
546 VD2 B: single-phase 220V input connected to L1, L3, and single-phase 220V input connected to L1C, L2C.
547
548 VD2 B: three-phase 220V input connected to L1, L2, L3.
549
550 VD2F: single-phase 220V input connected to L1, L2
551 )))|(% style="width:355px" %)Connect the main circuit wiring correctly
552 |(% style="width:255px" %)Internal servo drive fault|(% style="width:466px" %)Observe whether the monitoring quantity U0-31 (bus voltage) is in the following range:
553 220V drive: U0-31 less than 200V;
554 380V drive: U0-31 less than 400V.|(% style="width:355px" %)Contact technician for repair
555
556 **Er.22 Main power supply overvoltage**
557
558 Fault
559
560 |=(% style="width: 457px;" %)**Servo drive panel display**|=(% style="width: 618px;" %)**Fault name**
561 |(% style="width:457px" %)(((
562 (% style="text-align:center" %)
563 [[image:image-20220709165541-11.png]]
564 )))|(% style="width:618px" %)Main power supply overvoltage
565
566 Reason: DC bus voltage is bigger than the fault value.
567
568 1. 220V drive: DC bus voltage normal value is 310V; DC bus voltage fault value is 390V.
569 1. 380V drive: DC bus voltage normal value is 540V; DC bus voltage fault value is 670V.
570
571 Troubleshooting
572
573 |=(% style="width: 236px;" %)**Reason**|=(% style="width: 476px;" %)**Troubleshooting methods**|=(% style="width: 364px;" %)**Handling**
574 |(% style="width:236px" %)The input voltage is too high|(% style="width:476px" %)Check whether the drive input power specifications meet the following specifications:
575 220V drive: Valid value is 198V to 242V.
576 380V drive: Valid value is 342V to 440V.|(% style="width:364px" %)Replace or adjust power supply
577 |(% style="width:236px" %)The power supply is not stable or struck by lightning|(% style="width:476px" %)Check whether the input power supply of the servo drive meets the specifications and monitor whether it has been struck by lightning.|(% style="width:364px" %)(((
578 used after the power supply is stable
579
580 Connect to surge suppressor
581 )))
582 |(% rowspan="4" style="width:236px" %)Abnormal braking resistance|(% style="width:476px" %)Internal brake resistance wiring error: check whether C, D are connected to the short cap and the contact is normal|(% style="width:364px" %)Connect the short cap or short wire between C and D reliably
583 |(% style="width:476px" %)External braking resistor wiring error: Check whether the external resistor is connected reliably between P+ and C.|(% style="width:364px" %)External braking resistance is reliably strung between P+ and C
584 |(% style="width:476px" %)Short-circuit of the built-in brake resistance: Check whether the built-in brake resistance is short-circuit.|(% style="width:364px" %)(((
585 Remove the shorting cap between C and D, and reliably string the external braking resistor of equal resistance between P+ and C.
586
587 Contact technician to replace the internal braking resistor
588 )))
589 |(% style="width:476px" %)The resistance value of the external braking resistor is too large: Check the resistance value of the external braking resistor actually selected and compare it with the recommended braking resistor to confirm whether the resistance value of the actual resistor is too large.|(% style="width:364px" %)Choose a suitable external braking resistor
590 |(% style="width:236px" %)The motor is in a state of rapid acceleration and deceleration motion|(% style="width:476px" %)Monitor the servo drive monitoring quantity U0-31 (bus voltage) to confirm whether the voltage exceeds the fault value when the motor is in the deceleration section.|(% style="width:364px" %)Ensure that the input voltage is within specification and increase acceleration and deceleration times
591 |(% style="width:236px" %)Internal servo drive fault|(% style="width:476px" %)The servo drive is still faulty after power on again|(% style="width:364px" %)Servo drive may be damaged.Contact technician for repair
592
593 **Er.23 Braking resistor is not connected**
594
595 Fault
596
597 |=(% style="width: 464px;" %)**Servo drive panel display**|=(% style="width: 611px;" %)**Fault name**
598 |(% style="width:464px" %)(((
599 (% style="text-align:center" %)
600 [[image:image-20220709165550-12.png]]
601 )))|(% style="width:611px" %)Braking resistor is not connected
602
603 Troubleshooting
604
605 |=(% style="width: 244px;" %)**Reason**|=(% style="width: 440px;" %)**Troubleshooting methods**|=(% style="width: 392px;" %)**Handling**
606 |(% style="width:244px" %)Internal brake resistance wiring error|(% style="width:440px" %)Check whether C, D are connected to the short cap and the contact is normal|(% style="width:392px" %)When using an internal braking resistor, reliably connect the shorting cap or shorting wire between C and D
607 |(% style="width:244px" %)External braking resistor wiring error|(% style="width:440px" %)Check whether the external resistor is connected reliably between P+ and C.|(% style="width:392px" %)When using an external braking resistor, the external resistor is reliably strung between P+ and C
608 |(% style="width:244px" %)Internal braking resistor damaged|(% style="width:440px" %)The servo drive is powered off. Detects whether the resistance between P+ and D is 50Ω|(% style="width:392px" %)(((
609 Contact the technician to replace the internal braking resistor.
610
611 Use an external braking resistor and change the relevant parameters of the P00 "Basic Settings".
612 )))
613
614 **Er.24 Braking resistor turns on abnormally**
615
616 Fault
617
618 |=**Servo drive panel display**|=**Fault name**
619 |(((
620 (% style="text-align:center" %)
621 [[image:image-20220709163326-60.png]]
622 )))|Braking resistor is not connected
623
624 Troubleshooting
625
626 |=(% style="width: 236px;" %)**Reason**|=(% style="width: 460px;" %)**Troubleshooting methods**|=(% style="width: 380px;" %)**Handling**
627 |(% style="width:236px" %)Internal servo drive fault|(% style="width:460px" %)The servo drive is still faulty after power on again|(% style="width:380px" %)Servo drive may be damaged.Contact technician for repair
628
629 **Er.25 Braking resistor resistance is too large**
630
631 Fault
632
633 |=**Servo drive panel display**|=**Fault name**
634 |(((
635 (% style="text-align:center" %)
636 [[image:image-20220709165610-14.png]]
637 )))|Braking resistor resistance is too large
638
639 Troubleshooting
640
641 |=(% style="width: 239px;" %)**Reason**|=(% style="width: 475px;" %)**Troubleshooting methods**|=(% style="width: 362px;" %)**Handling**
642 |(% style="width:239px" %)The resistance value of the external braking resistor is too large|(% style="width:475px" %)Check the resistance value of the external braking resistor actually selected and compare it with the recommended braking resistor to confirm whether the resistance value of the actual resistor is too large.|(% style="width:362px" %)Choose a suitable external braking resistor
643 |(% style="width:239px" %)Unreasonable parameter settings|(% style="width:475px" %)Check whether the value of servo drive P00-10 (external brake resistance) is set too high|(% style="width:362px" %)Reasonably set the P00-10 (external braking resistor resistance) parameter value
644 |(% style="width:239px" %)Servo drive firmware fault|(% style="width:475px" %)(((
645 Check if the servo drive monitoring quantity U2-04 (firmware version) is in the following range.
646
647 VD2-0xxSA1G model: earlier than V1.14.
648
649 VD2F-0xxSA1P model: earlier than V1.02
650 )))|(% style="width:362px" %)(((
651 VD2-0xxSA1G model: Contact manufacturer to upgrade the firmware to V1.14 and above.
652
653 VD2F-0xxSA1P model: Contact technician to upgrade the firmware to V1.02 and above.
654 )))
655
656 **Er.26 Braking resistor resistance is too large**
657
658 Fault
659
660 |=**Servo drive panel display**|=**Fault name**
661 |(((
662 (% style="text-align:center" %)
663 [[image:image-20220709165622-15.png]]
664 )))|Motor code wrong
665
666 Troubleshooting
667
668 |=(% style="width: 242px;" %)**Reason**|=(% style="width: 456px;" %)**Troubleshooting methods**|=(% style="width: 378px;" %)**Handling**
669 |(% style="width:242px" %)Servo drives do not support this motor|(% style="width:456px" %)Check whether the servo driver model supports the motor|(% style="width:378px" %)Contact technical for suitable recommendations of servo drive model or motor model.
670 |(% style="width:242px" %)Wrong motor model|(% style="width:456px" %)Check whether the Motor Code is consistent with the Motor nameplate|(% style="width:378px" %)Contact technician to record the motor Motor Code
671
672 **Er.27 Encoder disconnection**
673
674 Fault
675
676 |=(% style="width: 466px;" %)**Servo drive panel display**|=(% style="width: 609px;" %)**Fault name**
677 |(% style="width:466px" %)(((
678 (% style="text-align:center" %)
679 [[image:image-20220709165628-16.png]]
680 )))|(% style="width:609px" %)Encoder disconnection
681
682 Troubleshooting
683
684 |=(% style="width: 254px;" %)**Reason**|=(% style="width: 436px;" %)**Troubleshooting methods**|=(% style="width: 386px;" %)**Handling**
685 |(% rowspan="2" style="width:254px" %)Poor contact on CN1 port|(% style="width:436px" %)Check whether the cable port (CN1) of the encoder is properly connected|(% style="width:386px" %)Tighten the fixing screws on the CN1 port
686 |(% style="width:436px" %)Check whether the servo drive CN1 port jack is deformed|(% style="width:386px" %)If the cable is deformed, replace the cable or its port
687 |(% style="width:254px" %)Poor contact on adapter port (Rectangular connection cable)|(% style="width:436px" %)Check whether both ends of the rectangular connector are reliably connected|(% style="width:386px" %)Make sure that both ends of the rectangular connector are connected reliably; Replace it with an encoder cable with higher connection reliability.
688 |(% style="width:254px" %)Wrong encoder cable wiring|(% style="width:436px" %)Check whether the both ends of the encoder cable are correctly connected|(% style="width:386px" %)Adjust wiring according to the corresponding relationship of pins;
689 The standard encoder cable of the manufacturer is preferred.
690
691 **Er.28 Encoder Z pulse lost**
692
693 Fault
694
695 |=(% style="width: 463px;" %)**Servo drive panel display**|=(% style="width: 612px;" %)**Fault name**
696 |(% style="width:463px" %)(((
697 (% style="text-align:center" %)
698 [[image:image-20220709165633-17.png]]
699 )))|(% style="width:612px" %)Encoder Z pulse lost
700
701 Troubleshooting
702
703 |=(% style="width: 227px;" %)**Reason**|=(% style="width: 448px;" %)**Troubleshooting methods**|=(% style="width: 401px;" %)**Handling**
704 |(% style="width:227px" %)Wrong motor model|(% style="width:448px" %)Check whether the Motor Code is consistent with the Motor nameplate|(% style="width:401px" %)Contact technician to record the motor Motor Code
705 |(% rowspan="2" style="width:227px" %)External interference|(% style="width:448px" %)Check for strong magnetic fields nearby|(% style="width:401px" %)Eliminate nearby strong magnetic interference
706 |(% style="width:448px" %)Check whether there are sources of interference such as power supply inverter equipment nearby|(% style="width:401px" %)Separate strong and weak power as much as possible, with good ground contact between motor and servo drive, and keep away from power cable wiring.
707 |(% style="width:227px" %)Encoder fault|(% style="width:448px" %)Manually rotate the motor shaft counterclockwise or clockwise to observe whether the monitoring quantity U0-30 (electrical angle) changes regularly|(% style="width:401px" %)If the value of U0-30 (electrical angle) changes abruptly or does not change, the encoder itself may have problems, please replace the motor or encoder.
708
709 **Er.30 Encoder UVW signal error**
710
711 Fault
712
713 |=(% style="width: 470px;" %)**Servo drive panel display**|=(% style="width: 605px;" %)**Fault name**
714 |(% style="width:470px" %)(((
715 (% style="text-align:center" %)
716 [[image:image-20220709165638-18.png]]
717 )))|(% style="width:605px" %)Encoder UVW signal error
718
719 Troubleshooting
720
721 |=(% style="width: 212px;" %)**Reason**|=(% style="width: 463px;" %)**Troubleshooting methods**|=(% style="width: 401px;" %)**Handling**
722 |(% style="width:212px" %)External interference|(% style="width:463px" %)Check that the motor and servo drive are well grounded|(% style="width:401px" %)Motor and servo drive are well grounded
723 |(% style="width:212px" %)Encoder cable fault|(% style="width:463px" %)Cross-verification. Use the normal motor, encoder cable to connect to the servo drive.|(% style="width:401px" %)Replace it with an encoder cable with higher connection reliability.
724 |(% style="width:212px" %)Servo drive fault|(% style="width:463px" %)The servo drive is still faulty after power on again|(% style="width:401px" %)Servo drive may be damaged.Contact technician for repair
725
726 **Er.31 Power line disconnection**
727
728 Fault
729
730 |=(% style="width: 468px;" %)**Servo drive panel display**|=(% style="width: 607px;" %)**Fault name**
731 |(% style="width:468px" %)(((
732 (% style="text-align:center" %)
733 [[image:image-20220709165643-19.png]]
734 )))|(% style="width:607px" %)Power line disconnection
735
736 Troubleshooting
737
738 |=(% style="width: 248px;" %)**Reason**|=(% style="width: 397px;" %)**Troubleshooting methods**|=(% style="width: 431px;" %)**Handling**
739 |(% style="width:248px" %)The motor power line wiring port is poorly contacted|(% style="width:397px" %)Check whether the motor power line connection port is connected reliably|(% style="width:431px" %)Tighten the fixing screws of the motor power line connection ports
740 |(% style="width:248px" %)The power cable is disconnected|(% style="width:397px" %)Check the power cable for disconnections at both ends|(% style="width:431px" %)Replace the power cable and power on again.
741 |(% style="width:248px" %)Poor contact on adapter port (Rectangular connection cable)|(% style="width:397px" %)Check whether both ends of the rectangular connector are reliably connected|(% style="width:431px" %)Make sure that both ends of the rectangular connector are connected reliably; Replace it with an encoder cable with higher connection reliability.
742
743 **Er.32 Exceeds motor maximum speed**
744
745 Fault
746
747 |=(% style="width: 465px;" %)**Servo drive panel display**|=(% style="width: 610px;" %)**Fault name**
748 |(% style="width:465px" %)(((
749 (% style="text-align:center" %)
750 [[image:image-20220709165647-20.png]]
751 )))|(% style="width:610px" %)Exceeds motor maximum speed
752
753 Troubleshooting
754
755 |=(% style="width: 300px;" %)**Reason**|=(% style="width: 423px;" %)**Troubleshooting methods**|=(% style="width: 353px;" %)**Handling**
756 |(% style="width:300px" %)The UVW phase sequence of motor power cable is incorrect|(% style="width:423px" %)Check whether the phase sequence of the motor power cable on the servo driver side and motor side corresponds to each other.|(% style="width:353px" %)Connect correctly according to UVW on the drive side and UVW on the motor side
757 |(% rowspan="2" style="width:300px" %)P01-10 parameter Settings are incorrect|(% style="width:423px" %)Check that the parameter value of P01-10 (maximum speed threshold) is less than the maximum speed required for the actual operation of the motor|(% rowspan="2" style="width:353px" %)Reset P01-10 (maximum speed threshold) according to mechanical requirements
758 |(% style="width:423px" %)(((
759 Check whether the motor speed corresponding to the input instruction exceeds P01-10 (maximum speed threshold).
760
761 Position mode, when the instruction is from a pulse instruction (P01-06 = 0).
762
763 Motor speed (rpm) = input pulse frequency (Hz) * 60 * electronic gear ratio / encoder resolution
764 )))
765 |(% style="width:300px" %)Servo drive fault|(% style="width:423px" %)The servo drive is still faulty after power on again|(% style="width:353px" %)Servo drive may be damaged. Please replace the servo drive.
766
767 **Er.33 Power module is over temperature**
768
769 Fault
770
771 |=(% style="width: 468px;" %)**Servo drive panel display**|=(% style="width: 607px;" %)**Fault name**
772 |(% style="width:468px" %)(((
773 (% style="text-align:center" %)
774 [[image:image-20220709165654-21.png]]
775 )))|(% style="width:607px" %)Power module is over temperature
776
777 Troubleshooting
778
779 |=(% style="width: 290px;" %)**Reason**|=(% style="width: 432px;" %)**Troubleshooting methods**|=(% style="width: 354px;" %)**Handling**
780 |(% style="width:290px" %)Ambient temperature is too high|(% style="width:432px" %)Measure the ambient temperature|(% style="width:354px" %)Reduce the ambient temperature of the servo drive
781 |(% style="width:290px" %)The cooling fan is faulty|(% style="width:432px" %)Check the servo drive fan for blockage or damage|(% style="width:354px" %)Contact technician for fan repair or replacement
782 |(% style="width:290px" %)The servo drive is mounted in an unreasonable orientation or the spacing between the servo drives is unreasonable|(% style="width:432px" %)Check whether the servo drive installation is reasonable|(% style="width:354px" %)Contact technical to obtain the installation standard of the servo drive
783 |(% style="width:290px" %)Servo drive fault|(% style="width:432px" %)Restarting after 10 minutes of power failure is still reported|(% style="width:354px" %)Servo drive may be damaged. Please replace the servo drive.
784
785 **Er.34 Motor overload protection**
786
787 Fault
788
789 |=(% style="width: 460px;" %)**Servo drive panel display**|=(% style="width: 615px;" %)**Fault name**
790 |(% style="width:460px" %)(((
791 (% style="text-align:center" %)
792 [[image:image-20220709170406-1.png]]
793 )))|(% style="width:615px" %)Motor overload protection
794
795 Troubleshooting
796
797 |=(% style="width: 239px;" %)**Reason**|=(% style="width: 435px;" %)**Troubleshooting methods**|=(% style="width: 402px;" %)**Handling**
798 |(% style="width:239px" %)Motor power cable, encoder cable wiring error|(% style="width:435px" %)Check whether the motor power cable and encoder cable wiring are correct.|(% style="width:402px" %)(((
799 Connect them according to the correct connection method.
800
801 Priority is given to the use of motor power lines and encoder cables as standard by manufacturers
802 )))
803 |(% style="width:239px" %)The load is too large|(% style="width:435px" %)Check overload characteristics of motor or servo drive|(% style="width:402px" %)(((
804 Reduce the load.
805
806 Contact technical to obtain the appropriate capacity drive and motor model.
807 )))
808 |(% style="width:239px" %)Frequent acceleration and deceleration|(% style="width:435px" %)Check whether the acceleration and deceleration motion is frequent or the acceleration and deceleration time is too small|(% style="width:402px" %)Appropriately extend the acceleration and deceleration time
809 |(% style="width:239px" %)Motor model and servo driver do not match|(% style="width:435px" %)Check the monitoring quantity U0-53 (motor model code).|(% style="width:402px" %)Contact technician to obtain the matching motor model.
810 |(% rowspan="3" style="width:239px" %)Unreasonable parameters|(% style="width:435px" %)Use Wecon SCTools to obtain the actual torque waveform and observe whether overshoot is obvious|(% style="width:402px" %)Set the appropriate loop gain parameters
811 |(% style="width:435px" %)Observe whether the motor vibrates during operation|(% style="width:402px" %)Set the appropriate rigidity level
812 |(% style="width:435px" %)Check whether p10-04 (Motor overload protection time coefficient) is reasonable|(% style="width:402px" %)Increase P10-04 (motor overload protection time factor) in the case of ensuring that the motor will not burn out.
813 |(% style="width:239px" %)Motor blockage|(% style="width:435px" %)Check if the motor is blocked due to mechanical jamming of the load.|(% style="width:402px" %)Release the mechanical jam.
814 |(% style="width:239px" %)The brakes are not open|(% style="width:435px" %)Check whether the brake device is opened normally, and check whether the output voltage of the brake is 24V|(% style="width:402px" %)Check the logic of brake power supply or brake output signal
815 |(% style="width:239px" %)Servo drive fault|(% style="width:435px" %)The servo drive is still faulty after power on again|(% style="width:402px" %)Servo drive may be damaged, please contact technician for repair.
816
817 **Er.35 Electronic gear ratio exceeds limit**
818
819 Fault
820
821 |=(% style="width: 473px;" %)**Servo drive panel display**|=(% style="width: 602px;" %)**Fault name**
822 |(% style="width:473px" %)(((
823 (% style="text-align:center" %)
824 [[image:image-20220709170424-2.png]]
825 )))|(% style="width:602px" %)Electronic gear ratio exceeds limit
826
827 Troubleshooting
828
829 |=(% style="width: 299px;" %)**Reason**|=(% style="width: 457px;" %)**Troubleshooting methods**|=(% style="width: 320px;" %)**Handling**
830 |(% style="width:299px" %)The electronic gear ratio setting is greater than the settable range|(% style="width:457px" %)(((
831 Check that the ratio of function codes P00-17/P00-18, P00-19/P00-20 is in the following range.
832
833 17bit absolute encoder upper limit value: 500.
834
835 23bit absolute encoder upper limit value: 32000
836 )))|(% rowspan="2" style="width:320px" %)After modifying the corresponding function code according to the range, set P10-03 (fault clearance) to 1.
837 |(% style="width:299px" %)The electronic gear ratio setting is less than the settable range|(% style="width:457px" %)(((
838 Check that the ratio of function codes P00-17/P00-18, P00-19/P00-20 is in the following range.
839
840 17bit absolute encoder lower limit value: 0.001.
841 )))
842
843 **Er.36 Position deviation is too large**
844
845 Fault
846
847 |=(% style="width: 463px;" %)**Servo drive panel display**|=(% style="width: 612px;" %)**Fault name**
848 |(% style="width:463px" %)(((
849 (% style="text-align:center" %)
850 [[image:image-20220709170438-3.png]]
851 )))|(% style="width:612px" %)Position deviation is too large
852
853 Troubleshooting
854
855 |=(% style="width: 233px;" %)**Reason**|=(% style="width: 449px;" %)**Troubleshooting methods**|=(% style="width: 394px;" %)**Handling**
856 |(% rowspan="2" style="width:233px" %)Cable error|(% style="width:449px" %)Check whether the phase sequence of the motor power cable on the servo driver side and motor side corresponds to each other.|(% style="width:394px" %)Connect correctly according to UVW on the drive side and UVW on the motor side
857 |(% style="width:449px" %)Check whether both ends of the power cable are disconnected|(% style="width:394px" %)Replace the power cable and power on again
858 |(% rowspan="4" style="width:233px" %)Unreasonable parameter settings|(% style="width:449px" %)Check whether P03-02 (Load rigidity Level) is set properly|(% style="width:394px" %)Reduce the P03-02 (load stiffness level) setting value appropriately
859 |(% style="width:449px" %)Check whether the gain parameters are set properly, resulting in overshoot|(% style="width:394px" %)Adjust gain parameters reasonably
860 |(% style="width:449px" %)Check whether P00-25 (position deviation threshold) is set properly|(% style="width:394px" %)Increase the value of P00-25 (position deviation threshold)
861 |(% style="width:449px" %)Use Wecon SCTools to obtain the equivalent speed of the position instruction and check whether the speed is greater than the motor speed limit|(% style="width:394px" %)Increase the setting values of P01-12 (forward speed threshold) and P01-13 (reverse speed threshold) according to mechanical requirements
862 |(% style="width:233px" %)Motor blockage|(% style="width:449px" %)Check if the motor is blocked due to mechanical jamming of the load.|(% style="width:394px" %)Release the mechanical jam.
863 |(% style="width:233px" %)The brakes are not open|(% style="width:449px" %)Check whether the brake device is opened normally, and check whether the output voltage of the brake is 24V|(% style="width:394px" %)Check the logic of brake power supply or brake output signal
864 |(% style="width:233px" %)The input pulse frequency is too high|(% style="width:449px" %)Position mode: when the instruction comes from the pulse instruction (P01-06=0), check whether the input pulse frequency is too high|(% style="width:394px" %)Reduce the input pulse frequency
865 |(% style="width:233px" %)The equivalent velocity of position instruction changes too fast|(% style="width:449px" %)Check if the position instruction changes too fast in the equivalent speed|(% style="width:394px" %)Properly increase the acceleration and deceleration time and reduce the rate of change of the speed
866
867 **Er.37 Torque saturation abnormal**
868
869 Fault
870
871 |=(% style="width: 467px;" %)**Servo drive panel display**|=(% style="width: 608px;" %)**Fault name**
872 |(% style="width:467px" %)(((
873 (% style="text-align:center" %)
874 [[image:image-20220709170455-4.png]]
875 )))|(% style="width:608px" %)Torque saturation abnormal
876
877 Troubleshooting
878
879 |=(% style="width: 227px;" %)**Reason**|=(% style="width: 460px;" %)**Troubleshooting methods**|=**Handling**
880 |(% style="width:227px" %)Motor power line cable UVW phase sequence error|(% style="width:460px" %)Check whether the phase sequence of the motor power cable on the servo driver side and motor side corresponds to each other.|Connect correctly according to UVW on the drive side and UVW on the motor side
881 |(% rowspan="4" style="width:227px" %)Unreasonable parameter settings|(% style="width:460px" %)Check whether P01-19 Torque saturation timeout) is set properly|Increase P01-19 Torque saturation timeout) setting value appropriately
882 |(% style="width:460px" %)Check whether P01-15 (forward torque limit) and P01-16 (reverse torque limit) are set reasonable|Increase the setting values of P01-15 (forward torque limit) and P01-16 (reverse torque limit) appropriately
883 |(% style="width:460px" %)Check whether the gain parameters are set properly|Adjust gain parameters reasonably
884 |(% style="width:460px" %)Check whether the gain parameters are set properly|Increase the acceleration and deceleration time
885 |(% style="width:227px" %)The load is too heavy|(% style="width:460px" %)Check whether the load is too heavy|Reduce the load
886 |(% style="width:227px" %)Motor blockage|(% style="width:460px" %)Check whether the motor is blocked due to mechanical jamming of the load.|Release the mechanical jam.
887 |(% style="width:227px" %)The brakes are not open|(% style="width:460px" %)Check whether the brake device is opened normally, and check whether the output voltage of the brake is 24V|Check the logic of brake power supply or brake output signal
888 |(% style="width:227px" %)Limit switches are mounted outside the travel|(% style="width:460px" %)Check whether the limit switch is installed outside the travel|Adjust the installation position of limit switch
889
890 **Er.38 Main circuit electricity is lack of phase**
891
892 Fault
893
894 |=**Servo drive panel display**|=**Fault name**
895 |(((
896 (% style="text-align:center" %)
897 [[image:image-20220709170508-5.png]]
898 )))|Main circuit electricity is lack of phase
899
900 Troubleshooting
901
902 |=(% style="width: 270px;" %)**Reason**|=(% style="width: 424px;" %)**Troubleshooting methods**|=**Handling**
903 |(% rowspan="2" style="width:270px" %)Cable error|(% style="width:424px" %)Check whether the motor power line connection port is connected reliably|Tighten the fixing screws of the motor power line connection ports
904 |(% style="width:424px" %)Check the power cable for disconnections at both ends|Replace the power cable and power on again.
905 |(% style="width:270px" %)Three-phase specification drives run on single-phase power supplies|(% style="width:424px" %)Check whether the three-phase drive has a single-phase power supply|Connect a three-phase power supply according to the power supply specifications
906 |(% style="width:270px" %)The power supply is unstable or off|(% style="width:424px" %)(((
907 Check that the drive input power specifications meet the specifications:
908
909 220V drive valid value: 198V to 242V.
910
911 380V drive valid value: 342V to 418V
912 )))|Use after the power supply is stable.
913 |(% style="width:270px" %)Servo drive fault|(% style="width:424px" %)The servo drive is still faulty after power on again|Servo drive may be damaged, please contact technician for repair.
914
915 **Er.39 Emergency stop**
916
917 Fault
918
919 |=(% style="width: 466px;" %)**Servo drive panel display**|=(% style="width: 609px;" %)**Fault name**
920 |(% style="width:466px" %)(((
921 (% style="text-align:center" %)
922 [[image:image-20220709170521-6.png]]
923 )))|(% style="width:609px" %)Emergency stop
924
925 Troubleshooting
926
927 |=(% style="width: 244px;" %)**Reason**|=(% style="width: 545px;" %)**Troubleshooting methods**|=(% style="width: 287px;" %)**Handling**
928 |(% rowspan="2" style="width:244px" %)Servo drive receives emergency stop instructions|(% style="width:545px" %)Check whether emergency stop protection is triggered manually|(% style="width:287px" %)Power on the servo drive again
929 |(% style="width:545px" %)(((
930 Check whether the servo drive has mistakenly triggered the emergency stop signal.
931
932 Check whether function 08 (E-STOP) is configured in the P06 group "DIDO configuration" function code group "DI port function selection" and whether the DI port wiring is normal.
933 )))|(% style="width:287px" %)(((
934 Properly wire the DI port
935
936
937 )))
938
939 **Er.40 Encoder battery failure**
940
941 Fault
942
943 |=(% style="width: 469px;" %)**Servo drive panel display**|=(% style="width: 606px;" %)**Fault name**
944 |(% style="width:469px" %)(((
945 (% style="text-align:center" %)
946 [[image:image-20220709170534-7.png]]
947 )))|(% style="width:606px" %)Encoder battery failure
948
949 Troubleshooting
950
951 |=(% style="width: 361px;" %)**Reason**|=(% style="width: 395px;" %)**Troubleshooting methods**|=(% style="width: 320px;" %)**Handling**
952 |(% style="width:361px" %)Multi-turn absolute encoder is not connected to the battery during the power off of the servo drive|(% style="width:395px" %)Check if the encoder is connected to the battery during the power off of the servo|(% style="width:320px" %)Set P10-03 (Fault clearing) to 1
953 |(% style="width:361px" %)The voltage of multi-turn absolute encoder battery is low|(% style="width:395px" %)Measure battery voltage|(% style="width:320px" %)Contact technicians to replace with a new encoder battery
954
955 **Er.41 Motor (encoder) over temperature**
956
957 Fault
958
959 |=(% style="width: 465px;" %)**Servo drive panel display**|=(% style="width: 610px;" %)**Fault name**
960 |(% style="width:465px" %)(((
961 (% style="text-align:center" %)
962 [[image:image-20220709170547-8.png]]
963 )))|(% style="width:610px" %)Motor (encoder) over temperature
964
965 Troubleshooting
966
967 |=(% style="width: 273px;" %)**Reason**|=(% style="width: 462px;" %)**Troubleshooting methods**|=**Handling**
968 |(% style="width:273px" %)The motor is overloaded|(% style="width:462px" %)Check whether the motor is overloaded|Reduce the load of the motor
969
970 **Er.42 Encoder write fault fault**
971
972 Fault
973
974 |=(% style="width: 471px;" %)**Servo drive panel display**|=(% style="width: 604px;" %)**Fault name**
975 |(% style="width:471px" %)(((
976 (% style="text-align:center" %)
977 [[image:image-20220709170937-1.png]]
978 )))|(% style="width:604px" %)Encoder write faults
979
980 Troubleshooting
981
982 |=**Reason**|=(% style="width: 426px;" %)**Troubleshooting methods**|=(% style="width: 404px;" %)**Handling**
983 |(% rowspan="2" %)Poor contact of CN1 port|(% style="width:426px" %)Check whether the cable port (CN1) of the encoder is properly connected|(% style="width:404px" %)Tighten the fixing screws on the CN1 port
984 |(% style="width:426px" %)Check whether the servo drive CN1 port jack is deformed|(% style="width:404px" %)If the cable is deformed, replace the cable or its port
985 |Poor contact on adapter port (Rectangular connection cable)|(% style="width:426px" %)Check whether both ends of the rectangular connector are reliably connected|(% style="width:404px" %)Make sure that both ends of the rectangular connector are connected reliably; Replace it with an encoder cable with higher connection reliability.
986 |(% rowspan="2" %)External interference|(% style="width:426px" %)Check for strong magnetic fields nearby|(% style="width:404px" %)Eliminate nearby strong magnetic interference
987 |(% style="width:426px" %)Check whether there are sources of interference such as power supply inverter equipment nearby|(% style="width:404px" %)Separate strong and weak power as much as possible, with good ground contact between motor and servo drive, and keep away from power cable wiring.
988 |Servo drive fault|(% style="width:426px" %)The servo drive is still faulty after power on again|(% style="width:404px" %)Servo drive may be damaged, please contact technician for repair.
989
990 **Er.43 Drive overload fault**
991
992 Fault
993
994
995 |=(% style="width: 794px;" %)**Servo drive panel display**|=(% style="width: 627px;" %)**Fault name**
996 |(% style="width:794px" %) ​​​​​​(((
997 (% style="text-align:center" %)
998 [[image:企业微信截图_16877625944107.png]]
999 )))|(% style="width:627px" %)Drive overload fault
1000
1001 Troubleshooting
1002
1003 |=Reason|=Troubleshooting|=Handling
1004 |The average output power (U0-34) exceeds the limit power (overload 110%) for more than 20 minutes.|Whether the average output power (U0-34) often exceeds the limit (overload 110) Check whether the drive meets the requirements.|Observed whether the U0-34 is often greater than the servo limit power (overload 110%) during servo operation. When ER.43 alarm is found in the process of machine adjustment, please check whether the servo power is suitable. It is recommended to replace the driver model with higher power.
1005 |Servo drive fault|The servo drive is still faulty after power on again|Servo drive may be damaged, contact the manufacturer's technician for repair.
1006
1007 **Er.45 Drive Blocking Overtemperature Protection**
1008
1009 Fault
1010
1011 |=(% style="width: 771px;" %)Servo drive panel display|=(% style="width: 650px;" %)Fault name
1012 |(% style="width:771px" %)(((
1013 (% style="text-align:center" %)
1014 [[image:1719997732882-739.png||height="80" width="203"]]
1015 )))|(% style="width:650px" %)Driver Blocking Overtemperature Protection
1016
1017 Troubleshooting
1018
1019 |=Reason|=Troubleshooting|=Treatment
1020 |Check whether U0-39 load torque percentage exceeds the maximum torque of the motor for 3 seconds or observe whether the load torque at the waveform interface of the oscilloscope of the upper computer is greater than the maximum torque of the motor and the motor is blocked.|Check whether U0-39 load torque percentage exceeds the maximum torque of the motor, and observe whether the motor is stuck.|Observable maximum torque observe whether the load torque on the waveform interface of the host computer oscilloscope is greater than the motor maximum torque or check whether U0-39 load torque percentage exceeds the motor maximum torque for 3 seconds.
1021
1022 (% style="text-align:center" %)
1023 [[image:1687762670698-912.png]]
1024
1025 **Er.60 ADC conversion is not complete**
1026
1027 Fault
1028
1029 |=**Servo drive panel display**|=**Fault name**
1030 |(((
1031 (% style="text-align:center" %)
1032 [[image:image-20220709170943-2.png]]
1033 )))|ADC conversion is not complete
1034
1035 Troubleshooting
1036
1037 |=(% style="width: 210px;" %)**Reason**|=(% style="width: 479px;" %)**Troubleshooting methods**|=(% style="width: 387px;" %)**Handling**
1038 |(% rowspan="2" style="width:210px" %)External interference|(% style="width:479px" %)Check for strong magnetic fields nearby|(% style="width:387px" %)Eliminate nearby strong magnetic interference
1039 |(% style="width:479px" %)Check whether there are sources of interference such as power supply inverter equipment nearby|(% style="width:387px" %)Separate strong and weak power as much as possible, with good ground contact between motor and servo drive, and keep away from power cable wiring.
1040 |(% style="width:210px" %)Servo drive fault|(% style="width:479px" %)Factory reset the parameter (P10-02=1) and power on again. If the servo drive still alarms after multiple operations, it is faulty.|(% style="width:387px" %)If there is still alarm after multiple power-on, contact the technician.
1041
1042 **Er.61 Internal software fault**
1043
1044 Fault
1045
1046 |=(% style="width: 470px;" %)**Servo drive panel display**|=(% style="width: 605px;" %)**Fault name**
1047 |(% style="width:470px" %)(((
1048 (% style="text-align:center" %)
1049 [[image:image-20220709170950-3.png]]
1050 )))|(% style="width:605px" %)Internal software fault
1051
1052 Troubleshooting
1053
1054 |=(% style="width: 235px;" %)**Reason**|=(% style="width: 478px;" %)**Troubleshooting methods**|=(% style="width: 363px;" %)**Handling**
1055 |(% style="width:235px" %)Servo drive fault|(% style="width:478px" %)Factory reset the parameter (P10-02=1) and power on again. If the servo drive still alarms after multiple operations, it is faulty.|(% style="width:363px" %)If there is still alarm after multiple power-on, contact the technician.
1056
1057 **Er.62 Internal software fault**
1058
1059 Fault
1060
1061 |=(% style="width: 479px;" %)**Servo drive panel display**|=(% style="width: 596px;" %)**Fault name**
1062 |(% style="width:479px" %)(((
1063 (% style="text-align:center" %)
1064 [[image:image-20220709171001-4.png]]
1065 )))|(% style="width:596px" %)Internal software fault
1066
1067 Troubleshooting
1068
1069 |=(% style="width: 218px;" %)**Reason**|=(% style="width: 501px;" %)**Troubleshooting methods**|=(% style="width: 357px;" %)**Handling**
1070 |(% style="width:218px" %)Servo drive fault|(% style="width:501px" %)Factory reset the parameter (P10-02=1) and power on again. If the servo drive still alarms after multiple operations, it is faulty.|(% style="width:357px" %)If there is still alarm after multiple power-on, contact the technician.
1071
1072 **Er.63 Internal software fault**
1073
1074 Fault
1075
1076 |=(% style="width: 468px;" %)**Servo drive panel display**|=(% style="width: 607px;" %)**Fault name**
1077 |(% style="width:468px" %)(((
1078 (% style="text-align:center" %)
1079 [[image:image-20220709171011-5.png]]
1080 )))|(% style="width:607px" %)Internal software fault
1081
1082 Troubleshooting
1083
1084 |=(% style="width: 238px;" %)**Reason**|=(% style="width: 471px;" %)**Troubleshooting methods**|=(% style="width: 367px;" %)**Handling**
1085 |(% style="width:238px" %)Servo drive fault|(% style="width:471px" %)Factory reset the parameter (P10-02=1) and power on again. If the servo drive still alarms after multiple operations, it is faulty.|(% style="width:367px" %)If there is still alarm after multiple power-on, contact the technician.
1086
1087 **Er.64 Internal software fault**
1088
1089 Fault
1090
1091 |=(% style="width: 472px;" %)**Servo drive panel display**|=(% style="width: 603px;" %)**Fault name**
1092 |(% style="width:472px" %)(((
1093 (% style="text-align:center" %)
1094 [[image:image-20220709171022-6.png]]
1095 )))|(% style="width:603px" %)Internal software fault
1096
1097 Troubleshooting
1098
1099 |=(% style="width: 227px;" %)**Reason**|=(% style="width: 498px;" %)**Troubleshooting methods**|=(% style="width: 351px;" %)**Handling**
1100 |(% style="width:227px" %)Servo drive fault|(% style="width:498px" %)Factory reset the parameter (P10-02=1) and power on again. If the servo drive still alarms after multiple operations, it is faulty.|(% style="width:351px" %)If there is still alarm after multiple power-on, contact the technician.
1101
1102 **Er.65 Internal software fault**
1103
1104 Fault
1105
1106 |=(% style="width: 472px;" %)**Servo drive panel display**|=(% style="width: 603px;" %)**Fault name**
1107 |(% style="width:472px" %)(((
1108 (% style="text-align:center" %)
1109 [[image:image-20220709171027-7.png]]
1110 )))|(% style="width:603px" %)Internal software fault
1111
1112 Troubleshooting
1113
1114 |=(% style="width: 212px;" %)**Reason**|=(% style="width: 518px;" %)**Troubleshooting methods**|=(% style="width: 346px;" %)**Handling**
1115 |(% style="width:212px" %)Servo drive fault|(% style="width:518px" %)Factory reset the parameter (P10-02=1) and power on again. If the servo drive still alarms after multiple operations, it is faulty.|(% style="width:346px" %)If there is still alarm after multiple power-on, contact the technician.
1116
1117 **A-80 Drive overpower warning**
1118
1119 Fault
1120
1121 |=Servo drive panel display|=Alarm name
1122 |(((
1123 (% style="text-align:center" %)
1124 [[image:1687763210466-195.png||height="54" width="150"]]
1125 )))|Drive overpower warning
1126
1127 Troubleshooting
1128
1129 |Reason|Troubleshooting|Handling
1130 |(((
1131 The average output power (U0-34) exceeds the limit power of the drive (overload 110%) for more than 5 seconds, the drive will have alarm.
1132
1133
1134 )))|Check whether the average output power (U0-34) exceeds the limit (overload 110) The average output power (U0-34) exceeds the limit power (overload 110%) for more than 5 minutes. Check whether the U0-34 exceeds 110% of the rated power of the driver.|Check whether the U0-34 exceeds 110% of the rated power of the driver. When A80 alarm is found in the process of machine adjustment, please check whether the servo power is suitable.
1135
1136 (% style="text-align:center" %)
1137 [[image:1687763249516-252.png]]
1138
1139 **A-81 Overspeed alarm**
1140
1141 Fault
1142
1143 |=(% style="width: 498px;" %)**Servo drive panel display**|=(% style="width: 577px;" %)**Fault name**
1144 |(% style="width:498px" %)(((
1145 (% style="text-align:center" %)
1146 [[image:image-20220709171047-8.png]]
1147 )))|(% style="width:577px" %)Overspeed alarm
1148
1149 Troubleshooting
1150
1151 |=(% style="width: 225px;" %)**Reason**|=(% style="width: 474px;" %)**Troubleshooting methods**|=(% style="width: 377px;" %)**Handling**
1152 |(% style="width:225px" %)Motor power line cable UVW phase sequence error|(% style="width:474px" %)Check whether the phase sequence of the motor power cable on the servo driver side and motor side corresponds to each other.|(% style="width:377px" %)Connect correctly according to UVW on the drive side and UVW on the motor side
1153 |(% style="width:225px" %)P01-11 parameter setting is not proper|(% style="width:474px" %)Check whether the value of P01-11 (warning speed threshold) is less than the max speed required for the operation of motor|(% style="width:377px" %)Reset P01-11 (warning speed threshold) according to mechanical requirements
1154 |(% style="width:225px" %)Input speed command is too high|(% style="width:474px" %)Check whether the motor speed corresponding to the input command exceeds P01-11 (maximum speed threshold)|(% style="width:377px" %)Reduce the input speed instruction according to the mechanical requirements; Reasonably increase P01-11 (warning speed threshold)
1155
1156 **A-82 Overload**
1157
1158 Fault
1159
1160 |=(% style="width: 479px;" %)**Servo drive panel display**|=(% style="width: 596px;" %)**Fault name**
1161 |(% style="width:479px" %)(((
1162 (% style="text-align:center" %)
1163 [[image:image-20220709171057-9.png]]
1164 )))|(% style="width:596px" %)Overload
1165
1166 Troubleshooting
1167
1168 |=(% style="width: 233px;" %)**Reason**|=(% style="width: 454px;" %)**Troubleshooting methods**|=**Handling**
1169 |(% style="width:233px" %)Motor power cable, encoder cable wiring error|(% style="width:454px" %)Check whether the motor power cable and encoder cable wiring are correct.|(((
1170 Connect them according to the correct connection method.
1171
1172 Priority is given to the use of motor power lines and encoder cables as standard by manufacturers
1173 )))
1174 |(% style="width:233px" %)The load is too large|(% style="width:454px" %)Check overload characteristics of motor or servo drive|Reduce the load. Contact technical to obtain the appropriate capacity drive and motor model.
1175 |(% style="width:233px" %)Motor model and servo driver do not match|(% style="width:454px" %)Perform inertia identification and check the inertia ratio.|Contact technician to obtain the matching motor model.
1176 |(% style="width:233px" %)Motor model and servo driver do not match|(% style="width:454px" %)Check the monitoring quantity U0-53 (motor model code).|Contact technician to obtain the matching motor model.
1177 |(% rowspan="2" style="width:233px" %)Unreasonable parameters|(% style="width:454px" %)Use Wecon SCTools to obtain the actual torque waveform and observe whether overshoot is obvious|Set the appropriate loop gain parameters
1178 |(% style="width:454px" %)Observe whether the motor vibrates during operation|Set the appropriate rigidity level
1179
1180 **A-83 Braking resistor is over temperature or overloaded**
1181
1182 Fault
1183
1184 |=(% style="width: 461px;" %)**Servo drive panel display**|=(% style="width: 614px;" %)**Fault name**
1185 |(% style="width:461px" %)(((
1186 (% style="text-align:center" %)
1187 [[image:image-20220709171112-10.png]]
1188 )))|(% style="width:614px" %)Braking resistor is over temperature or overloaded
1189
1190 Troubleshooting
1191
1192 |=(% style="width: 228px;" %)**Reason**|=(% style="width: 455px;" %)**Troubleshooting methods**|=(% style="width: 393px;" %)**Handling**
1193 |(% style="width:228px" %)Improper connection of internal braking resistor|(% style="width:455px" %)Check whether C, D are connected to the short cap and the contact is normal|(% style="width:393px" %)When using an internal braking resistor, reliably connect the shorting cap or shorting wire between C and D
1194 |(% style="width:228px" %)Improper connection of external braking resistor|(% style="width:455px" %)Remove the external braking resistor and measure whether the resistance value is "∞” (infinity)|(% style="width:393px" %)Replace the new external braking resistor. After ensuring that the resistance value of the resistor is the same as the nominal value, connect it in series between P+ and C.
1195 |(% style="width:228px" %)The resistance value of the external braking resistor is too large|(% style="width:455px" %)Test the actual external braking resistor resistance and compare it with the recommended braking resistor to make sure the actual resistance is not too large.|(% style="width:393px" %)Use a suitable external braking resistor.
1196 |(% style="width:228px" %)Improper parameter setting|(% style="width:455px" %)(((
1197 When using an external braking resistor, check the following parameters.
1198
1199 Whether P00-09 (braking resistor setting) is reasonable.
1200
1201 P00-10 (external braking resistor resistance value) is reasonable.
1202 )))|(% style="width:393px" %)(((
1203 Reasonable setting of P00-09 (braking resistor setting):
1204
1205 P00-09=1 (use external braking resistor and natural cooling)
1206
1207 P00-09 = 3 (do not use the braking resistor, all by capacitor absorption)
1208
1209 P00-10 (external braking resistor resistance value) parameter value and the actual actual use of external braking resistor are consistent.
1210 )))
1211
1212 **A-84 Parameter modification that needs to be powered on again**
1213
1214 Fault
1215
1216 |=(% style="width: 454px;" %)**Servo drive panel display**|=(% style="width: 621px;" %)**Fault name**
1217 |(% style="width:454px" %)(((
1218 (% style="text-align:center" %)
1219 [[image:image-20220709171124-11.png]]
1220 )))|(% style="width:621px" %)Modified parameters that need to be powered on again to take effect
1221
1222 Troubleshooting
1223
1224 |=(% style="width: 316px;" %)**Reason**|=(% style="width: 541px;" %)**Troubleshooting methods**|=(% style="width: 219px;" %)**Handling**
1225 |(% style="width:316px" %)Modified the effective timing to "power on again" parameter.|(% style="width:541px" %)Check whether the servo drive has modified the parameter with the effective time "power on again".|(% style="width:219px" %)Power on again
1226
1227 **A-85 Receive position pulse when servo is OFF**
1228
1229 Fault
1230
1231 |=(% style="width: 465px;" %)**Servo drive panel display**|=(% style="width: 610px;" %)**Fault name**
1232 |(% style="width:465px" %)(((
1233 (% style="text-align:center" %)
1234 [[image:image-20220709171137-12.png]]
1235 )))|(% style="width:610px" %)Receive position pulse when servo is OFF
1236
1237 Troubleshooting
1238
1239 |=(% style="width: 270px;" %)**Reason**|=(% style="width: 502px;" %)**Troubleshooting methods**|=(% style="width: 304px;" %)**Handling**
1240 |(% style="width:270px" %)Servo received position pulse when it is OFF.|(% style="width:502px" %)Check whether the servo drive is in the OFF state, and check whether the host computer is sending pulse instruction.|(% rowspan="2" style="width:304px" %)The host computer stops sending pulse instructions.
1241 |(% style="width:270px" %)Servo received pulse instruction in non-position mode|(% style="width:502px" %)(((
1242 Check whether the servo drive P00-01 (control mode) is in position mode;
1243
1244 Check whether the host computer is sending pulse instructions
1245 )))
1246
1247 **A-86 Input pulse frequency is too high**
1248
1249 Fault
1250
1251 |=(% style="width: 463px;" %)**Servo drive panel display**|=(% style="width: 612px;" %)**Fault name**
1252 |(% style="width:463px" %)(((
1253 (% style="text-align:center" %)
1254 [[image:image-20220709171149-13.png]]
1255 )))|(% style="width:612px" %)Input pulse frequency is too high
1256
1257 Troubleshooting
1258
1259 |=(% style="width: 240px;" %)**Reason**|=(% style="width: 446px;" %)**Troubleshooting methods**|=**Handling**
1260 |(% style="width:240px" %)The input pulse frequency is too high|(% style="width:446px" %)Position mode; When the instruction source is pulse instructions (P01-06=0), check whether the input pulse frequency is too high|Reduce the input pulse frequency
1261 |(% rowspan="2" style="width:240px" %)Improper parameter setting|(% style="width:446px" %)Check whether the parameter value of P01-16 (number of instruction pulses for one rotation of the motor) is greater than the actual demand value.|Reset P01-16 according to mechanical requirements (number of instruction pulses for one rotation of motor).
1262 |(% style="width:446px" %)Check whether the parameter value of P01-17 to P01-20 (electronic gear ratio) is greater than the actual demand value.|Reset parameter of values P01-17 to P01-20 (electronic gear ratio) according to mechanical requirements
1263
1264 **A-88 Main circuit momentary power off**
1265
1266 Fault
1267
1268 |=**Servo drive panel display**|=**Fault name**
1269 |(((
1270 (% style="text-align:center" %)
1271 [[image:image-20220709171200-14.png]]
1272 )))|Main circuit momentary power off
1273
1274 Troubleshooting
1275
1276 |=(% style="width: 223px;" %)**Reason**|=(% style="width: 462px;" %)**Troubleshooting methods**|=(% style="width: 391px;" %)**Handling**
1277 |(% style="width:223px" %)Power off|(% style="width:462px" %)(((
1278 Check that the drive input power specifications meet the specifications:
1279
1280 220V drive valid value: 198V to 242V.
1281
1282 380V drive valid value: 342V to 418V
1283 )))|(% style="width:391px" %)Use it after the power supply is stable
1284 |(% style="width:223px" %)Servo drive fault|(% style="width:462px" %)The servo drive is still faulty after power on again|(% style="width:391px" %)Servo drive may be damaged, please contact technician for repair.
1285
1286 **A-89 DI port configuration is duplicate**
1287
1288 Fault
1289
1290 |=(% style="width: 482px;" %)**Servo drive panel display**|=(% style="width: 593px;" %)**Fault name**
1291 |(% style="width:482px" %)(((
1292 (% style="text-align:center" %)
1293 [[image:image-20220709171217-15.png]]
1294 )))|(% style="width:593px" %)DI port configuration is duplicate
1295
1296 Troubleshooting
1297
1298 |=**Reason**|=(% style="width: 464px;" %)**Troubleshooting methods**|=(% style="width: 375px;" %)**Handling**
1299 |The same non-zero DI function is assigned to multiple DI ports|(% style="width:464px" %)Check whether the "DI port function selection" of the "DIDO Configuration" function code group of the P06 group is configured with the same DI function|(% style="width:375px" %)(((
1300 Configuring each DI port for different DI functions and power on again.
1301
1302 Configure the function of the unwanted DI ports to 0 (off) and power on again.
1303
1304 Factory reset the parameter P10-02=1, and power on again.
1305 )))
1306
1307 **A-90 DI port configuration is duplicate**
1308
1309 Fault
1310
1311 |=**Servo drive panel display**|=**Fault name**
1312 |(((
1313 (% style="text-align:center" %)
1314 [[image:image-20220709171230-16.png]]
1315 )))|DO port configuration i duplicate
1316
1317 Troubleshooting
1318
1319 |=**Reason**|=(% style="width: 469px;" %)**Troubleshooting methods**|=(% style="width: 367px;" %)**Handling**
1320 |The same non-zero DO function is assigned to multiple DO ports|(% style="width:469px" %)Check whether the "DO port function selection" of the "DIDO Configuration" function code group of the P06 group is configured with the same DO function|(% style="width:367px" %)(((
1321 Configuring each DO port for different DO functions and power on again.
1322
1323 Configure the function of the unwanted DO ports to 0 (off) and power on again.
1324
1325 Factory reset the parameter P10-02=1, and power on again.
1326 )))
1327
1328 **A-91 Parameter modification is too frequent**
1329
1330 Fault
1331
1332 |=(% style="width: 465px;" %)**Servo drive panel display**|=(% style="width: 610px;" %)**Fault name**
1333 |(% style="width:465px" %)(((
1334 (% style="text-align:center" %)
1335 [[image:image-20220709171241-17.png]]
1336 )))|(% style="width:610px" %)(((
1337 Parameter modification is too frequent (modification frequency allowed of function code: 6 hours/150 times
1338
1339 Note: 32-bit function code: recorded as 2 times)
1340 )))
1341
1342 Troubleshooting
1343
1344 |Reason|Troubleshooting|Handling
1345 |EEPROM writing frequency is too high|(((
1346 Check whether the host computer frequently modifies the parameters (modification frequency allowed of function code: 6 hours/150 times
1347
1348 Note: 32-bit function code: recorded as 2 times)
1349
1350
1351 )))|(((
1352 (1) During machine adjustment, A91 warning (6 hours/150 times) caused by manual frequent modification of function codes can be cleared through P10-03. In other cases, please check the PLC program
1353
1354 (2) If A91 warning appears in the normal working mode of the machine, please check whether the PLC program frequently modifies the function code.
1355
1356 (3) When the function code needs to be modified frequently, it is recommended to close Modbus write to EEPROM (P12-4 is set to 0)
1357 )))
1358 |(% rowspan="3" %)external interference|Check for strong magnetic fields nearby|Eliminate nearby strong magnetic interference
1359 |Check whether there are sources of interference such as power supply inverter equipment nearby|Separate strong and weak power as much as possible, with good ground contact between motor and servo drive, and keep away from power cable wiring.
1360 |(((
1361 Increase the abnormal threshold setting of P0-31 encoder read-write check.
1362
1363
1364 )))|Eliminate the A93 warning by increasing the exception threshold is suitable as a temporary solution. The disadvantage is that the motor may run in an unstable state.
1365 |Encoder fault|Manually rotate the motor shaft counterclockwise or clockwise to observe whether the monitoring quantity U0-30 (electrical angle) changes regularly|If the value of U0-30 (electrical angle) changes abruptly or does not change, the encoder itself may have problems, please replace the motor or encoder.
1366 |Servo drive fault|●Cross-verification. Use the normal motor, encoder cable to connect to the servo drive. If the servo drive still have alarm, it is servo fault.|Servo driver may be damaged, please contact the manufacturer's technician.
1367
1368 **A-92 Low encoder battery voltage warning**
1369
1370 Fault
1371
1372 |=**Servo drive panel display**|=**Fault name**
1373 |(((
1374 (% style="text-align:center" %)
1375 [[image:image-20220709171253-18.png]]
1376 )))|Low encoder battery voltage warning
1377
1378 Troubleshooting
1379
1380 |=(% style="width: 335px;" %)**Reason**|=(% style="width: 347px;" %)**Troubleshooting methods**|=(% style="width: 394px;" %)**Handling**
1381 |(% style="width:335px" %)The encoder battery voltage is less than 3.1V|(% style="width:347px" %)Measure the encoder battery voltage|(% style="width:394px" %)Contact technician to replace a new encoder battery
1382
1383 **A-93 Abnormal and frequency of encoder read and write check is too high**
1384
1385 Fault
1386
1387 |=(% style="width: 611px;" %)**Servo drive panel display**|=(% style="width: 811px;" %)**Fault name**
1388 |(% style="width:611px" %)(((
1389 (% style="text-align:center" %)
1390 [[image:image-20220709171304-19.png]]
1391 )))|(% style="width:811px" %)The abnormal frequency of encoder read-write verification is too high
1392
1393 Troubleshooting
1394
1395 |=(% style="width: 235px;" %)**Reason**|=(% style="width: 446px;" %)**Troubleshooting methods**|=(% style="width: 395px;" %)**Handling**
1396 |(% colspan="1" rowspan="3" style="width:235px" %)External interference|(% style="width:446px" %)Check for strong magnetic fields nearby|(% style="width:395px" %)Eliminate nearby strong magnetic interference
1397 |(% style="width:446px" %)Check whether there are sources of interference such as power supply inverter equipment nearby|(% style="width:395px" %)Separate strong and weak power as much as possible, with good ground contact between motor and servo drive, and keep away from power cable wiring.
1398 |(% style="width:446px" %)Increase the abnormal threshold setting of P0-31.|(% style="width:395px" %)This method is suitable as a temporary workaround to eliminate the A93 warning. It may cause an unstable state in the operation of the motor.
1399 |(% style="width:235px" %)Encoder issue|(% style="width:446px" %)Manually rotate the motor shaft slowly, and observe the changes of the monitoring quantity U0-30 (electrical angle).|(% style="width:395px" %)If the value of U0-30 (electrical angle) changes suddenly or does not change, it may be a problem with the encoder, please replace the motor or encoder.
1400 |(% style="width:235px" %)Internal servo drive fault|(% style="width:446px" %)Cross-verification. Use the normal motor, encoder cable to connect to the servo drive, only connect the encoder cable. If the servo drive still alarm, it is failure.|(% style="width:395px" %)Contact technician for repair