Delta RMC151 - Manual (Page 29)

Appendix A: Wiring
General Wiring Information
For CE compliance and to minimize electrical interference:
• Use twisted pairs for all wiring where possible.
• Use shielded cables for all wiring.
• Keep RMC wiring separate from AC mains or conductors carrying
high currents, especially high frequency switching power such as
conductors between servo drives and motors or amplifiers and
proportional valves.
For UL and CUL compliance:
• Power supply must be Class 2.
• All RMC inputs and outputs must be connected to Class 2 circuits
only.
For products labeled Class I, Division 2:
• Conductors must be copper only. Follow wire gauge and clamp
screw torque as listed below.
Wire Gauge and Clamp Screw Torque
Use the table below to determine proper wire gauge and torque for
the clamp screws on the terminal blocks.
Module Gauge Torque
RMC150E, MDT (M), SSI (S),
Analog (H, A, G), RES (R)
26-12 AWG
( 0.13 - 3.3 mm
2
)
4.5 lb-in
(0.51 Nm)
DI/O, UI/O 28-16 AWG
( 0.08 - 1.3 mm
2
)
2.2 lb-in
(0.25 Nm)
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