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| author | version | line-number | content |
|---|---|---|---|
| 1 | = **1 Installation Instructions** = | ||
| 2 | |||
| 3 | Before installation, it is necessary to ensure that the associated equipment of the PLC host and the terminal of the BD module are reliably powered off. | ||
| 4 | |||
| 5 | This module comes with two standard terminals; please plug the terminals into the module terminals after wiring. Confirm the installation of host, module and wiring are correct and then power on. | ||
| 6 | |||
| 7 | **Caution：** | ||
| 8 | |||
| 9 | 1. The input must not exceed the absolute maximum (-2mA/30mA) or cause the module to be damaged; | ||
| 10 | 1. To install the function expansion board firmly and fix it on the PLC, poor contact may cause malfunction; | ||
| 11 | 1. The fastening torque is 0.3-0.6N.m. Firmly screw down to prevent malfunctions; | ||
| 12 | 1. The PLC main unit of the LX3V can only use one BD module. Don’t try to use two or more BD modules (these BD modules will not work); | ||
| 13 | 1. When mounting module to PLC, all the lights are blinking after power ON PLC, it means this PLC can’t support it, please purchase new PLC. | ||
| 14 | |||
| 15 | **Warnings：** | ||
| 16 | |||
| 17 | Cut off the electricity before installation/disassembly of the unit or connection of wires onto the unit, to prevent electric shock or product damage. | ||
| 18 | |||
| 19 | = **2 Features of LX3V-4ADI-BD** = | ||
| 20 | |||
| 21 | 1. It could use LX3V-4ADI-BD to add 4 analog input points. It is internally installed in the top of PLC, thus it is not necessary to change the PLC’s installation area. | ||
| 22 | 1. The digital analog conversion of the LX3V-4ADI-BD module is the voltage inputs (4~~20mA), and the data of all the channels after conversion are stored inside a special digital memory, but the converted characteristics of the analog data cannot be adjusted. The allocation of the relevant channel addresses is in the following table. | ||
| 23 | |||
| 24 | (% class="table-bordered" %) | ||
| 25 | |**Address**|(% colspan="2" %)**Instructions**|**Address**|**Instructions** | ||
| 26 | |M8112|((( | ||
| 27 | CH1:flag of the input mode | ||
| 28 | |||
| 29 | OFF: Current input mode | ||
| 30 | )))|(% rowspan="4" %)ON: Disabled|D8112|Digital value of CH1 | ||
| 31 | |M8113|((( | ||
| 32 | CH2: flag of the input mode | ||
| 33 | |||
| 34 | OFF: Current input mode | ||
| 35 | )))|D8113|Digital value of CH2 | ||
| 36 | |M8114|((( | ||
| 37 | CH3: Flag of the output mode | ||
| 38 | |||
| 39 | OFF: Current input mode | ||
| 40 | )))|D8114|Digital value of CH3 | ||
| 41 | |M8115|((( | ||
| 42 | CH4: flag of the output mode | ||
| 43 | |||
| 44 | OFF: Current input mode | ||
| 45 | )))|D8115|Digital value of CH4 | ||
| 46 | |||
| 47 | = **3 Dimension** = | ||
| 48 | |||
| 49 | ((( | ||
| 50 | (% class="table-bordered" %) | ||
| 51 | |(% colspan="4" %)**Input current ranges: 4~~20mA** | ||
| 52 | |Ii1+|The anode of CH1 current input|Ii3+|The anode of the CH3 current input | ||
| 53 | |Ii1-|The cathode of CH1 current input|Ii3-|The cathode of the CH3 current input | ||
| 54 | |▪|Disconnect|▪|Disconnect | ||
| 55 | |Ii2+|The anode of CH2 current input|Ii4+|The anode of the CH4 current input | ||
| 56 | |Ii2-|The cathode of CH2 current input|Ii4-|The cathode of the CH4 current input | ||
| 57 | ))) | ||
| 58 | |||
| 59 | (% style="text-align:center" %) | ||
| 60 | [[image:LX3V-4ADI-BD_html_82eea61e6be702dd.png||height="352" width="400" class="img-thumbnail"]] | ||
| 61 | |||
| 62 | **LED lights indicating:** | ||
| 63 | |||
| 64 | * POW LED: Constantly ON when PLC power ON; | ||
| 65 | * COM LED: Lit when communicating PLC, OFF when timeout; | ||
| 66 | * CH1 LED: LED for CH1, constantly ON when analog signal in range, lit when analog signal out of range (4~~20mA). OFF when M8112 turns ON. | ||
| 67 | * CH2 LED: LED for CH2, constantly ON when analog signal in range, lit when analog signal out of range (4~~20mA). OFF when M8113 turns ON. | ||
| 68 | * CH3 LED: LED for CH3, constantly ON when analog signal in range, lit when analog signal out of range (4~~20mA). OFF when M8114 turns ON. | ||
| 69 | * CH4 LED: LED for CH4, constantly ON when analog signal in range, lit when analog signal out of range (4~~20mA). OFF when M8115 turns ON. | ||
| 70 | |||
| 71 | = **4 Specifications** = | ||
| 72 | |||
| 73 | 1. **General specification:** The same as the PLC main unit.（Please refer to the attached instructions supplied with the main unit of the PLC.） | ||
| 74 | 1. **Power specification:** Powered from inside of the programmable controller. | ||
| 75 | 1. **Performance specifications** | ||
| 76 | |||
| 77 | (% class="table-bordered" %) | ||
| 78 | |**Item**|**Specification** | ||
| 79 | |**Power supply**|5VDC±10%, 70mA (Powered by PLC host) | ||
| 80 | |(% colspan="2" %)**Analog input (ADI)** | ||
| 81 | |**Analog input range**|DC 4~~20mA (input resistance 250KΩ). Absolute maximum input: -2mA, +30mA | ||
| 82 | |**Rated range**|4~~20mA: 0~~2000 | ||
| 83 | |**The maximum display range**|-500~~2048 | ||
| 84 | |**Resolution**|8uA[4mA ~~20mA / 2000 ] | ||
| 85 | |**Precision**|±0.5% of full scale (4~~20mA:±0.08mA) | ||
| 86 | |**AD conversion time**|One PLC scanning cycle | ||
| 87 | |**Input characteristics**|((( | ||
| 88 | (% style="text-align:center" %) | ||
| 89 | [[image:LX3V-4ADI-BD_html_fea94099d4907857.png||class="img-thumbnail"]] | ||
| 90 | ))) | ||
| 91 | |**Insulation**|No insulation in each PLC channel | ||
| 92 | |**Occupied points**|None | ||
| 93 | |||
| 94 | = **5 Wire Connection** = | ||
| 95 | |||
| 96 | **Warning:** | ||
| 97 | |||
| 98 | Make sure cut off the electricity before installation/disassembly, to prevent electric shock or product damages. | ||
| 99 | |||
| 100 | **Caution:** | ||
| 101 | |||
| 102 | 1. Please keep the signal cable from the high-voltage cable at lease 100mm. | ||
| 103 | 1. The shielding wire cable shall be grounded. But their grounding point can be the same with high-voltage lines. | ||
| 104 | 1. Never connect cable with forbidden size. | ||
| 105 | 1. Fix the cable, so that the stress does not act on the terminal board or the cable connection area. | ||
| 106 | 1. The screwing torque of the terminal is from 0.5 to 0.6N.m. Fasten tight to prevent malfunction. | ||
| 107 | 1. Keep the redundant terminals empty. | ||
| 108 | |||
| 109 | == **5.1 Applicable Cables** == | ||
| 110 | |||
| 111 | Use AWG25-16 to connect the output equipment | ||
| 112 | |||
| 113 | The maximal screwing torque is from 0.5 to 0.6N.m | ||
| 114 | |||
| 115 | The use of different types of cables might cause poor contact between the terminals. It is better to use pressed terminals. | ||
| 116 | |||
| 117 | (% class="table-bordered" %) | ||
| 118 | |**Line type**|**Cross sectional area(mm^^2^^)**|**End-of-pipe treatment**|(% rowspan="4" %)((( | ||
| 119 | (% style="text-align:center" %) | ||
| 120 | [[image:LX3V-4ADI-BD_html_36c77dd4cfbf8f04.gif||class="img-thumbnail"]] | ||
| 121 | ))) | ||
| 122 | |AWG26|0.1288|(% rowspan="3" %)((( | ||
| 123 | Stranded cable: stripped jacket, rub Conductor, then connect the cable. | ||
| 124 | |||
| 125 | Single-core cable: stripped jacket, Then connect the cable. | ||
| 126 | ))) | ||
| 127 | |......|...... | ||
| 128 | |AWG16|1.309 | ||
| 129 | |||
| 130 | == **5.2 Current Input Mode** == | ||
| 131 | |||
| 132 | (% style="text-align:center" %) | ||
| 133 | [[image:LX3V-4ADI-BD_html_b8372ad223ba2fb.png||height="167" width="500" class="img-thumbnail"]] | ||
| 134 | |||
| 135 | = **6 Example** = | ||
| 136 | |||
| 137 | The analog value (4~~20mA) in each channel will be saved in system address (D8112, D8113). It will be saved automatically when “END”, and convert into digital value. Use CH1 and CH2 as example. | ||
| 138 | |||
| 139 | == **6.1 Basic program** == | ||
| 140 | |||
| 141 | **Caution:** | ||
| 142 | |||
| 143 | 1. Trigger M8122 and M8113, and set the characteristic of conversion in CH1 and CH2. | ||
| 144 | 1. Do not change the value of D8112 and D8113. | ||
| 145 | 1. Do not change the digital value of the D8112 or D8113 by operating the user program, programming tool, or graphical operator terminal after ADI performs A/D conversion. | ||
| 146 | |||
| 147 | ((( | ||
| 148 | Set channel 1 as current input (4~~20mA) | ||
| 149 | |||
| 150 | Set channel 2 as current input (4~~20mA) | ||
| 151 | |||
| 152 | Save the value of channel 1 to D0 | ||
| 153 | |||
| 154 | Save the value of channel 2 to D2 | ||
| 155 | |||
| 156 | (% style="text-align:center" %) | ||
| 157 | [[image:LX3V-4ADI-BD_html_445a5365d02a6de6.png||height="173" width="400" class="img-thumbnail"]] | ||
| 158 | ))) | ||
| 159 | |||
| 160 | * If the digital value is not stored in D0 or D2, D8112 and D8113, D8114 and D8115 can be used directly for both the set point and other instructions. | ||
| 161 | |||
| 162 | For example timer \ counter. | ||
| 163 | |||
| 164 | == **6.2 Application example** == | ||
| 165 | |||
| 166 | LX3V-4ADI-BD has no offset and gain function. | ||
| 167 | |||
| 168 | **Caution:** | ||
| 169 | |||
| 170 | 1. There are extra program for multiplication and division, so the real accuracy and resolution of AD conversion are different from product specifications; | ||
| 171 | 1. The range for analog output is constant; | ||
| 172 | |||
| 173 | **Current input mode** | ||
| 174 | |||
| 175 | In current input mode, it changes the analog value (4-20mA) to digital value (0-2000). If users need 4000-20000 digital range, it requires a conversion. | ||
| 176 | |||
| 177 | As following program shows, the digital value is saved in D8112 and D8113, because the digital range is changed from 0-2000 to 4000-20000, so the resolution of LX2AD2DA-BD is not 8uA. | ||
| 178 | |||
| 179 | (% style="text-align:center" %) | ||
| 180 | [[image:LX3V-4ADI-BD_html_bce18b5a461c3c48.png||height="200" width="700" class="img-thumbnail"]] | ||
| 181 | |||
| 182 | Suppose the user needs 4000-20000, and save in D0, so D0=8*(D8112 or D8113) +4000, the program as following shows. | ||
| 183 | |||
| 184 | (% style="text-align:center" %) | ||
| 185 | [[image:LX3V-4ADI-BD_html_86983320811cf591.png||height="140" width="500" class="img-thumbnail"]] |