Control Circuit Wiring Precautions - Omron VARISPEED G7 Instruction Manual

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, , 1, 2, and
Separate wiring for control circuit terminals MA, MB, MC, M1, and M2 (contact outputs) from wiring to
•
other control circuit terminals.
Use twisted-pair or shielded twisted-pair cables for control circuits to prevent operating faults. Process
•
cable ends as shown in Fig 2.20.
Connect the shield wire to terminal E (G).
•
Insulate the shield with tape to prevent contact with other signal lines and equipment.
•
Connect to shield sheath ter-
minal at Inverter (terminal E
(G))
Fig 2.20 Processing the Ends of Twisted-pair Cables
3) and other high-power lines.
Armor
Shield sheath
Insulate with tape
Wiring Control Circuit Terminals
Do not connect here.
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