Yaskawa VS-626 MC5 - Manual (Page 56)

3.6Wiring Check
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3.5.4 Control Circuit Wiring Precautions
D Separate control circuit wiring (terminals 1 to 33) from main circuit wiring (terminals R, S, T, B1, B2,
U, V, W, ©, ¨1, ¨2, and ¨3) and other high-power lines.
D Separate wiring for control circuit terminals 9, 10, 18, 19, and 20 (contact outputs) from wiring for
terminals 1 to 8, 21, 22, 23, 25, 26, 27, 33 and 11 to 17.
D Use twisted-pair or shielded twisted-pair cables for control circuits to prevent operating faults. Process
cable ends as shown in Figure 3.21.
D Connect the shield wire to terminal 12(G).
D Insulate the shield with tape to prevent contact with other signal lines and equipment.
Do not connect here.
Connect to shield sheath
terminal at VS-626MC5
(terminal
12 )
Shield sheath Armor
Insulate with tape
Fig
3.21 Processing the Ends of Twisted-pair Cables
3.6 Wiring Check
Check all wiring after wiring has been completed. Do not perform a buzzer check on control circuits.
D Is all wiring correct?
D Have any wire clippings, screws, or other foreign material been left?
D Are all screws tight?
D Are any wire ends contacting other terminals?
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