3-1
Chapter 3. Wiring
3 - 1
Wiring Precautions
WARNING
Do not use this device in an environment with conductive pollution, or with dry non-
conductive pollution which can become conductive due to condensation, etc. Otherwise,
problems such as tracking phenomena may damage parts, resulting in fire.
Before removing, mounting, or wiring the device, be sure to turn off the power to this device
and any connected devices. Otherwise, there is a danger of electric shock.
Be sure to check that the device has been correctly wired before turning on the power.
Incorrect wiring of this device may cause device failure and also lead to a dangerous accident.
Do not touch electrically charged parts such as the power terminals. There is a danger of
electric shock.
Do not disassemble this device. There is a danger of electric shock or device failure.
CAUTION
Wire this device correctly by using the wiring method, power, and installation method
specified in this user’s manual. Otherwise, there is a danger of fire, electric shock, or device
failure.
Do not allow wire clippings, metal shavings, water, etc., to enter the case of this device. There
is a danger of fire or device failure.
Firmly tighten the terminal screws to the torque listed in the specifications. Insufficient
tightening may result in fire or electric shock.
Do not use unused terminals as relay terminals. There is a danger of fire, electric shock, or
device failure.
Use this device with the provided power terminal block cover mounted. Otherwise, there is a
danger of electric shock.
If there is a risk of a power surge caused by lightning, use a surge absorber (surge protector).
Otherwise, there is a danger of fire or device failure.
The frame ground terminal of this device is a functional ground. Ground the frame ground
terminal to suppress adverse effects from external noise. Otherwise, malfunction may result.
