Mitsubishi Electric MELSEC iQ-F FX55-ASL-M User Manual page 6

[WIRING PRECAUTIONS]
WARNING
● Make sure to cut off all phases of the power supply externally before attempting installation or wiring
work. Failure to do so may cause electric shock or damage to the product.
● Make sure to attach the terminal cover, provided as an accessory, before turning on the power or
initiating operation after installation or wiring work. Failure to do so may cause electric shock.
● The temperature rating of the cable should be 70 or more.
● Make sure to properly wire to the terminal block (European type) in accordance with the following
precautions. Failure to do so may cause electric shock, equipment failures, a short-circuit, wire
breakage, malfunctions, or damage to the product.
- The disposal size of the cable end should follow the dimensions described in the manual.
- Tightening torque should follow the specifications in the manual.
- Twist the ends of stranded wires and make sure that there are no loose wires.
- Do not solder-plate the electric wire ends.
- Do not connect more than the specified number of wires or electric wires of unspecified size.
- Affix the electric wires so that neither the terminal block nor the connected parts are directly
stressed.
[WIRING PRECAUTIONS]
CAUTION
● Connect the power supply wiring to the dedicated terminals described in this manual. If an AC power
supply is connected to a DC input/output terminal or DC power supply terminal, the PLC will burn out.
● Do not apply the 24 V DC power before wiring the entire AnyWireASLINK system.
● Make sure to observe the following precautions in order to prevent any damage to the machinery or
accidents due to malfunction of the PLC caused by abnormal data written to the PLC due to the
effects of noise:
- Do not bundle the power line and control line together with or lay them close to the main circuit,
high-voltage line, load line or power line. As a guideline, lay the power line, control line and
communication cables at least 100 mm away from the main circuit, high-voltage line, load line or
power line.
- Ground the shield of the shielded wire or shielded cable at one point on the PLC. However, do not
use common grounding with heavy electrical systems.
● Place the cables in a duct or clamp them. If not, dangling cable may swing or inadvertently be pulled,
resulting in damage to the module or cables or malfunction due to poor contact.
● When disconnecting the cable from the module, do not pull the cable by the cable part. For the cable
connected to the terminal block, loosen the terminal screw. Pulling the cable connected to the module
may result in malfunction or damage to the module or cable.
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