oFA03
Option Card Fault
Yaskawa · Drive Fault Codes
What does oFA03 mean?
An option card fault, indicating a general issue with one of the installed option cards. This requires corrective actions ranging from parameter adjustment to hardware checks or replacement to restore functionality of the option.
Common Causes
- Incorrect parameters configured for the option card (e.g., communication settings, input mapping)
- Loose or improper installation of the option card in its slot
- Internal malfunction of the option card hardware due to component failure or damage.
Repair Steps & Checklist
Click steps to track your progress.
- 1
Verify all parameters related to the installed option card are correctly set according to the application.
- 2
Perform a power cycle and then reseat the option card firmly in its slot.
- 3
Check for proper operation of any external devices connected to the option card (e.g., encoder, network cable).
Verified technical data. Last updated: March 2026
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Source: Yaskawa Drive Fault Codes