Notes About Examples Of Wiring - Mitsubishi Electric MELSEC-F FX3G Series User Manual

FX Series Programmable Controllers
3G
User's Manual - Hardware Edition
WIRING PRECAUTIONS
• Do not supply power to the [24+] and [24V] terminals (24V DC service power supply) on the main unit or extension units.
Doing so may cause damage to the product.
• Perform class D grounding (grounding resistance: 100
2
wire 2 mm or thicker.
Do not use common grounding with heavy electrical systems (refer to section 9.3).
• Do not wire vacant terminals externally.
Doing so may damage the product.
• Connect the AC 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.
• Connect the DC 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.
• When drilling screw holes or wiring, make sure cutting or wire debris does not enter the ventilation slits.
Failure to do so may cause fire, equipment failures or malfunctions.
• Make sure to properly wire the FX
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.
- Tighten the screws using a Phillips-head screwdriver No.2 (shaft diameter 6mm (0.24") or less). Make sure that the screwdriver
does not touch the partition part of the terminal block.
• 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 end of strand wire 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.
• Make sure to properly wire to the FX Series terminal blocks 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.
- Tighten the screws using a Phillips-head screwdriver No.2 (shaft diameter 6mm (0.24") or less). Make sure that the screwdriver
does not touch the partition part of the terminal block.
13.1

Notes about Examples of Wiring

The examples of wiring are given under the following conditions.
• The input/output numbers are the actual numbers on the program. (They may differ from the numbers
shown on the product terminals.)
• Product input/output specifications
Check the product input/output specifications when using any example of wiring.
- Products only for sink input and products both for sink input and for source input are available.
- Products for sink output and products for source output are available.
• The examples of programming (applied instructions) are given based on the allocation of the input/output
numbers for wiring.
188
Series main unit and FX
3G
→ For the example of positioning wiring, refer to the Positioning Control Edition.
→ For the applied instructions, refer to the Programming Manual.
13 Examples of Wiring for Various Uses
or less) to the grounding terminal on the main unit and extension units with a
/FX Series extension equipment in accordance with the following
2N 3U
13.1 Notes about Examples of Wiring