13 Examples of Wiring for Various Uses
188
FX
3G
Series Programmable Controllers
User's Manual - Hardware Edition
13.1 Notes about Examples of Wiring
13.1
Notes about Examples of Wiring
The examples of wiring are given under the following conditions.
→
For the example of positioning wiring, refer to the Positioning Control Edition.
• 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.
→
For the applied instructions, refer to the Programming Manual.
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 or less) to the grounding terminal on the main unit and extension units with a
wire 2 mm
2
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
3G
Series main unit and FX
2N
/FX
3U
Series 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.
-
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.
