Yaskawa oFA40: Communication option card connection fault

Yaskawa PLC & VFD Major plc

Model: A1000 | Code: oFA40

Applicable Systems
GA700 GA500 A1000 V1000 J1000

Symptoms

Communication option card connection error detected.

Possible Causes

  • Comm option not seated
  • Faulty comm card
  • Wiring issue

Troubleshooting Steps

  1. Step 1: Reseat or replace communication option card.
    Fault cleared after corrective action

How to Reset

Reset via operator keypad after resolving root cause.

Related Yaskawa Fault Codes

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Source: Yaskawa A1000 Series Technical Manual (Alarm/Fault List), mirrored by gzjunkong.com & xuxingda.com

Category: PLC & VFD