User manual

Test Run and Troubleshooting

Test Run Precautions

Before installing the I/O wiring of the PLC and supplying power, check

the following items.

Item What to check

The connection of

the power cable

and the

I/O cables

• Check if the wiring is secured.

• Check if the terminal screws are tightened.

• Check if the parts of connectors are properly joined.

• Check if the I/O modules are firmly fixed.

• Check if the power cable is securely connected.

• Check if the cable size is correct.

Grounding

• Check if the grounding is triple grounded and

separate from other device grounds.

Battery

• Check if the battery is installed into holder on the CPU

module.

• Check if the battery connector is connected to the

CPU board

Emergency

stop circuit

• Check if the emergency stop circuit for problems

external to the PLC is wired accurately, and will

immediately disconnect power on demand.

Power source

• Check if the power and voltage sources are within

specifications.

- For 110V ac (90 to 132V ac)

- For 220V ac (180 to 264V ac)

• Check if the power to the AC input module is within

specifications.