WARNING
Before connecting the DCP31 to the measurement target or external control cir-
cuits, make sure that the FG terminal is properly grounded (100Ω max.).
Failure to do so might cause electric shock or fire.
Before removing, mounting, or wiring the DCP31, be sure to turn off the power to
the DCP31 and all connected devices.
Failure to do so might cause electric shock.
Do not touch electrically charged parts such as the power terminals. Doing so
might cause electric shock.
CAUTION
Wire the DCP31 properly according to predetermined standards. Also wire the
DCP31 using designed power leads according to recognized installation methods.
Failure to do so might cause electric shock, fire or faulty operation.
Do not allow lead clippings, chips or water to enter the DCP31 case. Doing so
might cause fire or faulty operation.
Inputs to the current input terminals ( ) and ( ) on the DCP31 should be
within the current and voltage ranges listed in the specifications.
Failure to do so might cause electric shock or faulty operation.
Firmly tighten the terminal screws at the torque listed in the specifications.
Insufficient tightening of terminal screws might cause electric shock or fire.
Do not use unused terminals on the DCP31 as relay terminals.
Failure to do so might cause electric shock, fire or faulty operation.
We recommend attaching the terminal cover (sold separately) after wiring
the DCP31. Failure to do so might cause electric shock, fire or faulty operation.
Use the relays on the DCP31 within the service life listed in the specifications.
Continued use of the relays after the recommended service life might cause fire or
faulty operation.
If there is a risk of a power surge caused by lightning, use a surge absorber (surge
protector) to prevent fire or device failure.
4-1
Chapter 4. WIRING
4 - 1
Wiring Precautions
