4 Installation and Wiring
4-28
NJ-series CPU Unit Hardware User’s Manual (W500)
Crimp Terminals
The terminals on the Power Supply Unit are M4, self-raising terminals with screws.
• Use crimp terminals for wiring.
• Do not connect bare stranded wires directly to terminals.
• Tighten the terminal block screws to a torque of 1.2 N·m.
• Use crimp terminals (M4) having the dimensions shown below.
• Crimp Terminals for AC Power Supplies
• Always remove any dustproof labels that are on the top of the Units when they are shipped
before you turn ON the power supply. If the labels are not removed, heat will accumulate and
malfunctions may occur.
Precautions for Correct UsePrecautions for Correct Use
Do not allow wire clippings, shavings, or other foreign material to enter any Unit. Otherwise, Unit
burning, failure, or malfunction may occur. Cover the Units or take other suitable countermea-
sures, especially during wiring work.
NJ-PD3001 Power Supply Unit
DC Power Supplies
7 mm max.
Torque to 1.2 N
•
m
20 mm max.
M4 self-raising screw terminals
DC power supply
Screw terminals (M4 head with
self-raising pressure plate)
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