14
AB-7329
  Wiring
 WARNING
Be sure to ground this product with a ground 
resistance of less than 100 Ω. Improper 
grounding may cause electric shock or 
malfunction.
Before wiring or maintenance, be sure to turn 
o the power to this product. 
Failure to do so may result in electric shock 
or device failure.
 CAUTION
Take anti-noise measures if this product is 
installed in a location near source of electric 
noise.
Failure to do so may cause malfunction or 
device failure.
Installation and wiring must be performed 
by qualied personnel in accordance with all 
applicable safety standards.  
Failure to do so may cause re or electric 
shock.
All wiring must comply with applicable codes 
and ordinances.    
Otherwise there is a danger of re.
Do not use an uninterruptible power supply 
(UPS) that outputs rectangular waves.
Doing so may cause the device to fail.
For wiring, strip the insulation from cables as 
specied in this manual.
If the length of exposed wire is longer than 
specied, it may cause electric shock or short 
circuit between adjacent terminals. If it is too 
short, it may not make proper contact.
Firmly tighten the terminal screws with the 
torque indicated in this specications.
Insucient tightening of the terminal screws 
may cause re or overheating.
IMPORTANT
• Do not test the withstand voltage of 
this product. Doing so may cause device 
failure.
• If more than the rated power voltage 
is accidentally applied to this product, 
replace the product with a new one for 
your safety.
Failure to do so may cause device 
failure or cause re.
Notes for wiring
•  Do not use unused/spare terminals on this product 
as relay terminals.  
Doing so may cause device failure.
•  Provide a power circuit breaker for the power source 
to this product.  
This product cannot be turned o because it does 
not have a power switch.
•  Do not allow the wires to cover the front of this 
product.  
Draw out the wiring in the vertical direction of the 
product, because the front of the product is an area 
for LED displays or for adjusting the product.
CORRECT INCORRECT
 z Wiring power supply terminal block
Screw connectors are used.
Power connector
(1)  Strip 7 mm of insulation from the cable wire.
7 mm
  Check that there are no straying wires from the 
stripped wire.
(2)  If the connector is plugged into the device, push in 
the release levers on the right and left sides of the 
connector to remove it from the device.
Push in