Yaskawa iQpump Controller User Manual - Manual (Page 52)

2.3 Control Wiring
52 YASKAWA TM.iQp.06 iQpump Controller User Manual
◆ Control Circuit Wiring Precautions
Observe the following precautions when wiring control circuits:
1. Separate control wiring from power/motor wiring (terminals R/L1, S/L2, T/L3, U/T1, V/T2, W/T3, , 1, 2, and 3) and other
high-power lines.
2. Separate wiring for control circuit terminals MA, MB, MC, M1, M2, M3, and M4 (digital outputs) from wiring to other control circuit
terminals.
3. If using an optional external power supply, ensure it is a UL Listed Class 2 power supply source.
4. Use twisted-pair or shielded twisted-pair cables for control circuits to prevent operating faults. Prepare cable ends as shown in
Figure 2.7.
5. Connect the shield wire to terminal E (G).
6. Insulate the shield with tape to prevent contact with other signal lines and equipment.
Figure 2.7 Preparing the Termination of Shielded Twisted-pair Cables
Shield sheath Insulation
Connect to shield sheath
terminal E(G) at drive
Insulate with tape
Do not connect here.