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[Wiring Precautions]
●Shut off the external power supply (all phases) used in the system before wiring. Failure to do so may result in
electric shock or damage to the products.
●After wiring, attach the included terminal cover to the products before turning them on for operation. Failure to do
so may result in electric shock.
[Wiring Precautions]
CAUTION
●Use applicable solderless terminals and tighten them within the specified torque range. Failure to do so may cause
failure, damage, or malfunction.
●Check the rated voltage and terminal layout before wiring to the products, and connect the cables correctly.
Connecting a power supply with a different voltage rating or incorrect wiring may cause a fire or failure.
●Do not install the control lines or communication cables together with the main circuit lines or power cables. Keep
a distance of 100mm or more between them. Failure to do so may result in malfunction due to noise.
●When using a terminal block conversion module for a high-speed counter module, do not install the control lines or
communication cables together with the main circuit lines or power cables. Keep a distance of 150mm (5.91 inches)
or more between them. Failure to do so may result in malfunction or failure due to noise.
●Keep a distance of 100mm (3.94 inches) or more between a thermocouple or RTD (Resistance Temperature
Detector) and the main circuit line or AC control lines. Also, keep the thermocouple or RTD away from a circuit that
includes harmonics, such as a high-voltage circuit and a load circuit of an inverter. If not, the thermocouple or RTD
is more likely to be affected by noise, surges, and induction.
●Do not place an analog signal converter or analog terminal block conversion module near a device that generates
magnetic noise.
●Place the cables in a duct or clamp them. If not, dangling cable may swing or inadvertently be pulled, resulting in
damage to the products or cables or malfunction due to poor contact.
●Tighten the terminal screws within the specified torque range. Undertightening can cause short circuit, fire, or
malfunction. Overtightening can damage the screw and/or products, resulting in drop, short circuit, or malfunction.
●Tighten the connector screws within the specified torque range. Undertightening can cause short circuit, fire, or
malfunction. Overtightening can damage the screw and/or products, resulting in drop, short circuit, fire, or
malfunction.
●Securely connect connectors to the products. Failure to do so may cause malfunction.
●When disconnecting a cable from the products, do not pull the cable by the cable part. For the cable with connector,
hold the connector part of the cable. For the cable connected to the terminal block, loosen the terminal screw.
Pulling the cable connected to the products may result in malfunction or damage to the products or cable.
●Check the interface type and correctly connect the cable. Incorrect wiring (connecting the cable to an incorrect
interface) may cause failure of the products and external device.
●Prevent foreign matter such as dust or wire chips from entering the products. Such foreign matter can cause a fire,
failure, or malfunction.
●The products must be installed in control panels. Connect the main power supply to the products in the control
panel through a relay terminal block. Wiring and replacement of the products must be performed by qualified
maintenance personnel with knowledge of protection against electric shock.
●When connecting the products with a programmable controller, check that the product configuration is correct. An
incorrect configuration may cause failure or malfunction.
●Use the products with no force applied to their connectors. Applied force may cause failure or disconnection.
●Attach protective covers or signal conversion modules to unused connectors or empty slots of the products. Failure
to do so may cause a fire, failure, or malfunction due to foreign matter.
●When using modules for replacing digital signal converters or signal conversion modules, use them in the correct
combination. Incorrect combination may cause failure of a programmable controller, digital signal converter,
installation base, or external device.
●Securely mount modules for replacing digital signal converters and signal conversion modules on a digital signal
converter and installation base. Failure to do so may cause damage to or drop of the products, or malfunction due
to poor contact. Follow the correct procedure to install/remove them. Failure to do so may cause damage to or
drop of the products, or malfunction due to poor contact.
●Individually ground the FG terminal of the products with a ground resistance of 100 ohms or less. Failure to do so
may result in electric shock or malfunction.
