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Version 2.1 by Theodore Xu on 2025/09/13 14:52
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Wecon 1.1 1 = **Main Circuit Wiring** =
2
3 == Main Circuit Terminals ==
4
5 (1) Main circuit terminal distribution of VD3E type A servo drive
6
7 (% style="text-align:center" %)
8 (((
9 (% style="display:inline-block" %)
10 [[Figure 4-1 VD3E Type A Servo Drive Main Circuit Terminal Schematic>>image:1687683102171-561.png]]
11 )))
12
13
14
15
16 (% style="margin-left:auto; margin-right:auto" %)
17 |=(% colspan="3" %)Table 4-1 Name and function of main circuit terminal of VD3E type A servo drive
18 |**Terminal number**|**Terminal name**|**Terminal function**
19 |L1|(% rowspan="3" %)Power input terminal|(% rowspan="3" %)Single-phase 220V AC input is connected to L1 and L3.
20 |L2
21 |L3
22 |P+|(% rowspan="3" %)Braking resistor terminal|(% rowspan="3" %)(((
23 Use internal braking resistor: short connected C-D.
24
25 Use an external braking resistor: please disconnect the short wire between C-D, and then connect the external braking resistor between P+ and C;
26 )))
27 |C
28 |D
29 |U|(% rowspan="3" %)Motor power line terminal|(% rowspan="3" %)Connect with the U, V, W of the motor to supply power to the motor.
30 |V
31 |W
32 |Ground terminal|Ground terminal|Grounding of the servo drive.
33
34 (2) Main circuit terminal distribution of VD3E type B servo drive
35
36 (% style="text-align:center" %)
37 (((
38 (% style="display:inline-block" %)
39 [[Figure 4-2 Schematic Diagram of VD3E Type B Servo Drive Main Circuit Terminal>>image:1687683762972-581.png]]
40 )))
41
42
43 (% style="text-align:center" %)
44 (((
45 (% style="display:inline-block" %)
46 [[Figure 4-3 Schematic diagram of main circuit terminals of VD3E Type B servo drive (380V)>>image:1728375269674-562.png]]
47 )))
48
49
50 (% style="margin-left:auto; margin-right:auto" %)
51 |=(% colspan="3" %)Table 4-2 Name and function of main circuit terminal of VD3E type B servo drive
52 |**Terminal number**|**Terminal name**|**Terminal function**
53 |L1|(% rowspan="3" %)Power input terminal|(% rowspan="3" %)(((
54 Single-phase 220V AC input is connected to L1 and L3.
55
56 Three-phase 220V AC input is connected to L1, L2, L3;
57 )))
58 |L2
59 |L3
60 |L1C|(% rowspan="2" %)Control power input terminal|(% rowspan="2" %)Single-phase 220V AC input connected to L1C and L2C
61 |L1C
62 |P+|(% rowspan="3" %)Braking resistor terminal|(% rowspan="3" %)(((
63 Use internal braking resistor: short connected C-D.
64
65 Use an external braking resistor: please disconnect the short wire between C-D, and then connect the external braking resistor between P+ and C;
66 )))
67 |C
68 |D
69 |U|(% rowspan="3" %)Motor power line terminal|(% rowspan="3" %)Connect with the U, V, W of the motor to supply power to the motor.
70 |V
71 |W
72 |Ground terminal|Ground terminal|Grounding of the servo drive.
73
74 == Power Wiring Example ==
75
76 (1) VD3E Type A Drive Single-phase 220V Main Circuit Wiring
77
78 (% style="text-align:center" %)
79 (((
80 (% style="display:inline-block" %)
81 [[Figure 4-4 VD3E Type A Drive Single-phase 220V Main Circuit Wiring>>image:image-20230625165108-1.jpeg]]
82 )))
83
84
85
86 (2) VD3E Type B Drive Single-phase 220V Main Circuit Wiring
87
88 (% style="text-align:center" %)
89 (((
90 (% style="display:inline-block" %)
91 [[Figure 4-5 VD3E Type B Drive Single-phase 220V Main Circuit Wiring>>image:image-20230625165108-2.jpeg]]
92 )))
93
94
95
96 (3) VD3E Type B Drive Three-phase 220V Main Circuit Wiring
97
98 (% style="text-align:center" %)
99 (((
100 (% style="display:inline-block" %)
101 [[Figure 4-6 VD3E Type B Drive Three-phase 220V Main Circuit Wiring>>image:image-20230625165108-3.jpeg]]
102 )))
103
104
105
106
107
108
109 == Precautions for Main Circuit Wiring ==
110
111 ① The input power line cannot be connected to the output terminals U, V and W, otherwise the servo drive will be damaged. When using the built-in braking resistor, C and D must be connected (factory default connection).
112
113 ② When the cables are bundled and used in pipes, etc., due to the deterioration of heat dissipation conditions, please consider the allowable current reduction rate.
114
115 ③ When the temperature in the cabinet is higher than the cable temperature limit, please choose a cable with a larger cable temperature limit, and it is recommended that the cable wire use Teflon wire. Please pay attention to the warmth of the cable in the low temperature environment. Generally, the surface of the cable is prone to hardening and breakage under the low temperature environment.
116
117 ④ The bending radius of the cable should be more than 10 times the outer diameter of the cable itself to prevent the core of the cable from breaking due to long-term bending.
118
119 == **Power Line Connection of Servo Drive and Servo Motor** ==
120
121 == Power Cable ==
122
123
124 (% style="text-align:center" %)
125 (((
126 (% style="display:inline-block" %)
127 [[Figure 4-8 Connection schematic diagram of servo drive and servo motor>>image:1687684645551-968.png]]
128 )))
129
130
131
132 Wecon VD3E series servo drives have 3 kinds of interface power cables: rectangular plug, aviation plug and in-line type.
133
134
135 (% style="margin-left:auto; margin-right:auto" %)
136 |=(% colspan="4" %)Table 4-4 Power cable servo motor side connector
137 |**Connector exterior**|**Terminal pin distribution**|**Pin description**|(((
138 **Adaptation**
139
140 **Motor flange**
141 )))
142 |(((
143 (% style="text-align:center" %)
144 [[image:1687684675596-372.png]]
145 )))|(((
146 (% style="text-align:center" %)
147 [[image:1687684679111-610.png]]
148 )))|(((
149 Rectangular plug
150
151 |**Pin number**|**Signal name**|**Color**
152 |1|U|Red
153 |2|V|White
154 |3|W|Black
155 |4|PE|Yellow-green
156
157
158 )))|(((
159 60
160
161 80
162 )))
163 |(((
164 (% style="text-align:center" %)
165 [[image:1687684684152-193.png]]
166 )))|(((
167 (% style="text-align:center" %)
168 [[image:1687684687903-164.png]]
169 )))|(((
170 Aviation plug
171
172 |**Pin number**|**Signal name**|**Color**
173 |2|U|Black
174 |4|V|Yellow-green
175 |3|W|Black
176 |1|PE|Black
177
178
179 )))|(((
180 110
181
182 130
183 )))
184 |(((
185 (% style="text-align:center" %)
186 [[image:1687684696324-620.png]]
187 )))|(((
188 (% style="text-align:center" %)
189 [[image:1687684698756-554.png]]
190 )))|(((
191 In-line type plug
192
193 |**Pin number**|**Signal name**|**Color**
194 |3|U|Red
195 |1|V|White
196 |2|W|Black
197 |4|PE|Yellow-green
198
199
200 )))|(((
201 60
202
203 80
204 )))
205
206 (% class="box infomessage" %)
207 (((
208 **✎Note:** The color of the lines is subject to the actual product. The lines described in this manual are all lines of Wecon.
209 )))
210
211 == Brake Device Cable ==
212
213 |**Connector shape and terminal pin distribution**|**Pin description**
214 |(((
215 (% style="text-align:center" %)
216 [[image:1687684709179-705.png]]
217 )))|(((
218 |**Pin number**|**Signal name**
219 |1|DC 24V
220 |2|GND
221 |3|-
222
223
224 )))
225
226 |(% colspan="2" %)**Connector shape and terminal pin distribution**|**Pin description**|**Adaptable motor flange**
Theodore Xu 2.1 227 |WD Series|(((
228 (% style="text-align:center" %)
229 [[image:VD3E manual wd barke cable.png||height="128" width="201"]]
230
231
232 )))|(((
Wecon 1.1 233 |**Pin number**|**Signal name**
234 |1|BR+
235 |2|BR-
236
237
238 )))|(((
239 60
240
241 80
242 )))
Theodore Xu 2.1 243 |WE Series|(((
244 (% style="text-align:center" %)
245 [[image:1728375778780-598.png]]
246 )))|(((
Wecon 1.1 247 |**Pin number**|**Signal name**
248 |1|DC 24V
249 |2|GND
250 |3|-
251
252
253 )))|(((
254 80
255
256 110
257
258 130
259 )))
260
261 = **Encoder Cable Connection of Servo Drive and Servo Motor** =
262
263
264
265 (% style="text-align:center" %)
266 (((
267 (% style="display:inline-block" %)
268 [[Figure 4-9 Encoder cable connection schema>>image:1687747907582-918.png]]
269 )))
270
271
272
273
274 (% style="margin-left:auto; margin-right:auto" %)
275 |=(% colspan="3" %)Table 4-5 Encoder cable servo drive side connector
276 |**Connector exterior**|**Terminal pin distribution**|**Pin description**
277 |(((
278 (% style="text-align:center" %)
279 [[image:1687747991360-592.png]]
280 )))|(((
281 (% style="text-align:center" %)
282 [[image:1687747994434-201.png]]
283 )))|(((
284 |**Pin number**|**Signal name**
285 |1|5V
286 |2|GND
287 |3|-
288 |4|-
289 |5|SD+
290 |6|SD-
291
292
293 )))
294
295 (% style="margin-left:auto; margin-right:auto" %)
296 |=(% colspan="3" %)Table 4-6 Absolute encoder cable connector (rectangular plug)
297 |(% colspan="2" %)**Connector shape and terminal pin distribution**|(((
298 **Adapted motor**
299
300 **Flange**
301 )))
302 |[[image:image-20230626105045-1.png]]|[[image:image-20230626105045-2.png]]|(% rowspan="3" %)(((
303 60
304
305 80
306 )))
307 |[[image:image-20230626105045-3.png]]|[[image:image-20230626105045-4.png]]
308 |(% colspan="2" %)(((
309 |**Pin number**|**Signal name**
310 |7|5V
311 |8|GND
312 |4|SD+
313 |5|SD-
314 |3|Shield
315 |1|Battery+
316 |2|Battery-
317
318
319 )))
320
321 (% style="margin-left:auto; margin-right:auto" %)
322 |=(% colspan="5" %)Table 4-7 Encoder cable pin connection relationship
323 |(% colspan="2" %)**Drive side J1394**|(% rowspan="2" %)**Description**|(% colspan="2" %)**Motor side**
324 |**Pin number**|**Signal name**|(% style="width:328px" %)**Rectangular plug pin number**|(% style="width:287px" %)**Cable color**
325 |1|5V|Encoder +5v power|(% style="width:328px" %)7|(% style="width:287px" %)Blue
326 |2|GND|Encoder power ground|(% style="width:328px" %)8|(% style="width:287px" %)Orange
327 |5|SD+|Serial communication signal +|(% style="width:328px" %)4|(% style="width:287px" %)Green
328 |6|SD-|Serial communication signal -|(% style="width:328px" %)5|(% style="width:287px" %)Brown
329 |Shell|Shield|Shield|(% style="width:328px" %)3|(% style="width:287px" %)-
330 |-|-|Battery+|(% style="width:328px" %)1*|(% style="width:287px" %)Pink
331 |-|-|Battery-|(% style="width:328px" %)2*|(% style="width:287px" %)Pink-Black
332
333 The pin with “*” indicates the signal line of encoder battery. If the multi-turn battery memory function is not used, you don’t need to connect the signal lines. It is only used as single turn encoder line at this time.
334
335 (% class="box infomessage" %)
336 (((
337 **✎Note:** The color of the cable is subject to the actual product. The cables described in this manual are all cables of Wecon!
338 )))
339
340
341 (% style="margin-left:auto; margin-right:auto" %)
342 |=(% colspan="3" %)Table 4-7 Absolute value encoder cable connector (aviation plug)
343 |(% colspan="2" %)**Connector shape and terminal pin distribution**|(((
344 **Adapted motor**
345
346 **Flange**
347 )))
348 |[[image:image-20230626105045-5.png]]|[[image:image-20230626105045-6.png]]|(% rowspan="3" %)(((
349 110
350
351 130
352 )))
353 |(((
354 (% style="text-align:center" %)
355 [[image:1687748771732-938.png]]
356 )))|(((
357 (% style="text-align:center" %)
358 [[image:1687748774596-792.png]]
359 )))
360 |(% colspan="2" %)(((
361 |**Pin number**|**Signal name**
362 |7|5V
363 |5|GND
364 |6|SD+
365 |4|SD-
366 |1|Shield
367 |3|Battery+
368 |2|Battery-
369
370
371 )))
372
373 (% style="margin-left:auto; margin-right:auto" %)
374 |=(% colspan="5" %)Table 4-9 Encoder cable pin connection relationship
375 |(% colspan="2" %)**Drive side J1394**|(% rowspan="2" %)**Description**|(% colspan="2" %)**Motor side**
376 |**Pin number**|**Signal name**|**Aviation plug pin number**|**Cable color**
377 |1|5V|Encoder +5v power|7|Blue
378 |2|GND|Encoder power ground|5|Orange
379 |5|SD+|Serial communication signal +|6|Green
380 |6|SD-|Serial communication signal -|4|Brown
381 |Shell|Shield|Shield|1|-
382 |-|-|Battery+|3*|Pink
383 |-|-|Battery-|2*|Pink-Black
384
385 The pin with “*” indicates the signal line of encoder battery. If the multi-turn battery memory function is not used, you don’t need to connect the signal lines. It is only used as single turn encoder line at this time.
386
387 (% class="box infomessage" %)
388 (((
389 **✎Note:** The color of the cable is subject to the actual product. The cables described in this manual are all cables of Wecon!
390 )))
391
392
393 (% style="margin-left:auto; margin-right:auto" %)
394 |=(% colspan="3" %)Table 4-10 Absolute value encoder cable connector (in-line type)
395 |(% colspan="2" %)**Connector shape and terminal pin distribution**|(((
396 **Adapted motor**
397
398 **Flange**
399 )))
400 |[[image:image-20230626105045-7.png]]|[[image:image-20230626105045-8.png]]|(% rowspan="3" %)(((
401 60
402
403 80
404 )))
405 |(((
406
407
408 [[image:企业微信截图_16877488985122.png]]
409 )))|(((
410
411
412 (% style="text-align:center" %)
413 [[image:企业微信截图_16877489288144.png]]
414 )))
415 |(% colspan="2" %)(((
416 |**Pin number**|**Signal name**
417 |7|5V
418 |5|GND
419 |6|SD+
420 |4|SD-
421 |1|Shield
422
423
424 )))
425
426 (% style="margin-left:auto; margin-right:auto" %)
427 |=(% colspan="5" %)Table 4-11 Encoder cable pin connection relationship
428 |(% colspan="2" %)**Drive side J1394**|(% rowspan="2" %)**Description**|(% colspan="2" %)**Motor side**
429 |**Pin number**|**Signal name**|**Aviation plug pin number**|**Cable color**
430 |1|5V|Encoder +5v power|7|Blue
431 |2|GND|Encoder power ground|5|Orange
432 |5|SD+|Serial communication signal +|6|Green
433 |6|SD-|Serial communication signal -|4|Brown
434 |Shell|Shield|Shield|1|-
435
436 (% class="box infomessage" %)
437 (((
438 **✎Note:** The color of the cable is subject to the actual product. The cables described in this manual are all cables of Wecon!
439 )))
440
441 = **Servo Drive Control Input and Output Terminal Wiring** =
442
443 == CN2 Pin Distribution ==
444
445
446 (% style="text-align:center" %)
447 [[image:WXWorkCapture_17416797677562.png]]
448
449 (% style="margin-left:auto; margin-right:auto" %)
450 |=(% colspan="4" scope="row" %)Table 4-14 CN2 Interface Definition
451 |=**Pin number**|**Signal name**|**Pin number**|**Signal name**
452 |=1|DO2-|9|DI1
453 |=2|DO2+|10|DI3
454 |=3|SS|11|DO3-
455 |=4|DI2|12|DO3+
456 |=5|DI4|13|-
457 |=6|DO1-|14|DI6
458 |=7|DO1+|15|DI5
459 |=8|-| |
460
461 == Digital Input and Output Signals ==
462
463 (% style="margin-left:auto; margin-right:auto" %)
464 |=(% colspan="3" %)Table 4-12 DI/DO signal description
465 |**Pin number**|**Signal name**|**Default function**
466 |9|DI1|None
467 |4|DI2|Fault and warning clear
468 |10|DI3|Forward drive prohibition
469 |5|DI4|Reverse drive prohibition
470 |15|DI5|None
471 |14|DI6|None
472 |3|SS|Power input (12 ~~ 24V)
473 |6|DO1-|(% rowspan="2" %)Rotation detection
474 |7|DO1+
475 |1|DO2-|(% rowspan="2" %)Fault signal
476 |2|DO2+
477 |11|DO3-|(% rowspan="2" %)Servo ready
478 |12|DO3+
479
480 1) Digital input circuit
481
482 Taking DI1 as an example, the interface circuits of DI1 ~~ DI6 are exactly the same.
483
484 When the control device(HMI/PLC) is relay output
485
486 (% style="text-align:center" %)
487 (((
488 (% style="display:inline-block" %)
489 [[Figure 4-11 Relay output>>image:image-20230626105836-9.png]]
490 )))
491
492
493 When the control device(HMI/PLC) is open collector output
494
495 (% style="text-align:center" %)
496 (((
497 (% style="display:inline-block" %)
498 [[Figure 4-12 Open collector output>>image:image-20230626105836-10.png]]
499 )))
500
501
502
503 **Digital output circuit**
504
505 Taking DO1 as an example, the interface circuits of DO1 ~~ DO3 are exactly the same.
506
507 When the control device(HMI/PLC) is relay input
508
509 (% style="text-align:center" %)
510 (((
511 (% style="display:inline-block" %)
512 [[Figure 4-11 Relay input>>image:image-20230626105836-11.png]]
513 )))
514
515
516
517 When the control device(HMI/PLC) is optocoupler input
518
519 (% style="text-align:center" %)
520 (((
521 (% style="display:inline-block" %)
522 [[Figure 4-12 Optocoupler input>>image:image-20230626105836-12.png]]
523 )))
524
525
526
527
528 == Brake Wiring ==
529
530 The brake is a mechanism that prevents the servo motor shaft from moving when the servo drive is in a non-operating state, and keeps the motor locked in position, so that the moving part of the machine will not move due to its own weight or external force.
531
532 The brake input signal is non-polar, and the user needs to prepare 24V power supply. The standard connection diagram of brake signal BK and brake power supply is as follows:
533
534 (% style="text-align:center" %)
535 (((
536 (% style="display:inline-block" %)
537 [[Figure 4-15 Brake wiring (taking three-phase 220V input as an example)>>image:image-20230626105836-13.png]]
538 )))
539
540 = **Communication Signal Wiring** =
541
542 The CN5 port of the first servo drive is connected to Wecon PLC LX6V
543
544 (% style="text-align:center" %)
545 (((
546 (% style="display:inline-block" %)
547 [[Figure 4-16 Communication topology networking schema>>image:1687748619942-118.png]]
548 )))
549
550
551
552
553
554 (% style="margin-left:auto; margin-right:auto" %)
555 |=(% colspan="3" %)Table 4-16 CN5\ CN6 interface definition
556 |**Pin**|**Name**|**Function description**
557 |1|RX-|Computer sends negative terminal (drive receives negative)
558 |2|RX+|Computer sends terminal (drive receives positive)
559 |3|TX-|Computer receives negative terminal (drive sends negative)
560 |4|GND|Ground terminal
561 |5|Not used|Not used
562 |6|TX+|Computer receives positive terminal (drive sends positive)
563 |7|NC|Not used
564 |8|NC|Not used