Control Circuit Wiring Precautions - Omron SYSDRIVE 3G3RV Series User Manual

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Control Circuit Wiring Precautions

Observe the following precautions when wiring control circuits.
Separate control circuit wiring from main circuit wiring (terminals R/L1, S/L2, T/L3, B1, B2, U/T1, V/T2,
•
W/T3,
Separate wiring for control circuit terminals MA, MB, MC, M1, and M2 (contact outputs) from wiring to
•
other control circuit terminals.
If using an optional external power supply, it must be a UL-listed Class 2 power supply source.
•
• Use twisted-pair or shielded twisted-pair cables for control circuits to prevent operating faults. Process
cable ends as shown in Fig 2.26.
Connect the shield wire to terminal E (G).
•
Insulate the shield with tape to prevent contact with other signal lines and equipment.
•
-36
2
, 1, 2, and 3) and other high-power lines.
Shield sheath
Connect to shield sheath ter-
minal at Inverter (terminal E
(G))
Fig 2.26 Processing the Ends of Twisted-pair Cables
Armor
Do not connect here.
Insulate with tape