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5 Installation and Wiring
NX-series Safety Control Unit User’s Manual (Z930)
5-3 Wiring the Terminals
5
5-3-1 Wiring to the Screwless Clamping Terminal Block
Precautions for Correct Use
Do not press the flat-blade screwdriver straight into the release hole. Doing so may break the
terminal block.
• When you insert a flat-blade screwdriver into a release hole, press it down with a force of 30
N or less. Applying excessive force may damage the terminal block.
• Do not tilt or twist the flat-blade screwdriver while it is pressed into the release hole. Doing so
may damage the terminal block.
• Make sure that all wiring is correct.
• Do not bend the cable forcibly. Doing so may sever the cable.
Removing Wires
Use the following procedure to remove the wires from the terminal block.
The removal process is the same for both ferrules and twisted/solid wires.
1 Press the flat-blade screwdriver diagonally into the release hole.
Press at an angle of 10° to 15°.
If you press in the screwdriver correctly, you will feel the spring in the release hole.
NG
OK
NG
NG
Flat-blade screwdrive
1
10 to 15
°
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