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[Wiring/Connection Precautions]
CAUTION
● Be sure to shut off all phases of the external power supply used by the
system before installation or wiring.
Not doing so can cause the product to be damaged or malfunction.
● Be sure to ground the FG terminal to the class-D (class-3) or higher
grounding. Otherwise there will be a danger of malfunctions.
● Use applicable solderless terminals and tighten them with the specified
torque.If any solderless spade terminal is used, it may be disconnected when
the terminal screw comes loose, resulting in failure.
● When wiring the programmable controller, check the rated voltage and
terminal layout of the wiring, and make sure the wiring is done correctly.
Connecting a power supply that differs from the rated voltage or wiring it
incorrectly may cause fire or failure.
● Be sure to confirm terminal assignments before wiring the module.
● Be sure there are no foreign substances such as sawdust or wiring debris
inside the module. Such debris could cause fire, failure or malfunction.
● Tighten the terminal screws with the specified torque. Loose terminal screws
may cause a short circuit, fire or erroneous operation. Tightening the
terminal screws too far may cause damage to the screws and /or the
module, resulting in fallout, short circuits, or malfunction.
● Before beginning any installation or wiring work, make sure all phases of the
power supply have been obstructed from the outside. Failure to completely
shut off the power supply phases may cause electric shock and/or damage
to the module.
● When turning on the power or operating the module after installation or
wiring work, be sure the module's terminal covers are correctly attached.
Failure to attach the terminal covers may result in electric shock.
● External connectors shall be correctly soldered. Imperfect connections could
result in short circuit or erroneous operation.
● When connecting the communication and power supply cables to the
module, always run them in conduits or clamp them.
Not doing so can damage the module and cables due to loose, moved or
accidentally pulled cables or can cause a malfunction due to a cable
connection fault.
● Do not install the control lines together with the communication cables, or
bring them close to each other. Failure to do so may cause malfunctions due
to noise.