Wiring - Mitsubishi FX3U User Manual

FX -16CCL-M User's Manual
3U
5.

Wiring

WIRING PRECAUTIONS
• Make sure to cut off all phases of the power supply externally before attempting wiring work.
Failure to do so may cause electric shock or damage to the product.
WIRING PRECAUTIONS
• Connect the DC power supply wiring to the dedicated terminal 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.
• Perform class D grounding (grounding resistance: 100
as possible.
Do not use common grounding with heavy electrical systems.
• Make sure to attach the top cover, offered as an accessory, before turning on the power or initiating operation after installation or
wiring work.
Failure to do so may cause electric shock.
• When drilling screw holes or wiring, make sure that cutting and wiring debris do not enter the ventilation slits.
Failure to do so may cause fire, equipment failures or malfunctions.
• For the CC-Link system, use CC-Link dedicated cables.
The performance of the CC-Link system cannot be guaranteed with any cable other than CC-Link dedicated cables.
For the maximum total extension length and the cable length between stations, observe the specification described in the Section 2.5.
With wiring outside the specification range, normal data transfer cannot be guaranteed.
• Do not bundle the CC-Link dedicated cable together with or lay it close to the main circuit, high-voltage line, or load line. As a
guideline, lay the control line at least 100mm (3.94") or more away from the main circuit, high-voltage line, or load line.
Otherwise, noise disturbance and/or surge induction are likely to take place.
• Make sure to fix communication cables and power cables connected to the module by placing them in the duct or clamping them.
Cables not placed in duct or not clamped may hang or shift, allowing them to be accidentally pulled, which may result in malfunction or
damage to the module and the cables.
• When disconnecting a communication/power cable connected to the module, do not hold the cable area.
For a cable connected to a terminal block, loosen screws of the terminal block, then disconnect the cable.
If a cable is pulled while it is connected to a module, the module may malfunction or the module and the cable may be damaged.
• Make sure to properly wire the extension equipment 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.
or less) to the grounding terminal on the FX
5 Wiring
-16CCL-M with a wire as thick
3U
35
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