Control Circuit Wiring Precautions - Omron I537-E2-01 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, U/T1, V/T2, W/T3,
•
, 1,
• Separate wiring for control circuit terminals MA, MB, MC, M1, M2, M3 and M4 (contact outputs) from
wiring to other control circuit terminals.
If using an optional external power supply, it shall 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 2.20.
• Connect the shield wire to terminal E (G).
Insulate the shield with tape to prevent contact with other signal lines and equipment.
•
-28
2
2 and 3) and other high-power lines.
Shield sheath
Connect to shield sheath ter-
minal at Inverter (terminal E
(G))
Fig 2.20 Processing the Ends of Twisted-pair Cables
Armor
Do not connect here.
Insulate with tape