Yaskawa GA800 E02 Fault Code — What It Means
The E02 fault code is not identified in available Yaskawa GA800 manufacturer documentation. Yaskawa uses various alphanumeric fault and alarm codes, but the exact meaning of E02 for the GA800 series cannot be confirmed from official sources. Some Yaskawa drives use similar codes like Er-02 or oL2 for different faults, but these are not interchangeable across models. Before attempting repairs, consult your specific GA800 manual or the fault table on the drive’s display to verify what E02 indicates for your particular model and firmware version.
Yaskawa’s standard troubleshooting procedure requires identifying and removing the underlying cause of any fault before clearing it. Once the root problem is corrected, use the keypad reset function to clear the code. If the fault persists or you cannot determine its meaning, record the exact code displayed, your drive’s model number, specification code, serial number, and contact Yaskawa technical support for model-specific guidance.
Common Causes
- Undocumented fault code The E02 code does not appear in available GA800 manufacturer fault tables and may be specific to certain firmware versions or configurations.
- Motor parameter mismatch Incorrect motor data entry or failed auto-tuning can trigger error codes on VFDs, though this is not confirmed for GA800 E02.
- Communication or wiring issue Faulty control wiring, loose connections, or communication errors between the drive and external devices can cause unrecognized fault codes.
- Drive configuration error Incompatible parameter settings or corrupted drive memory may produce codes not listed in standard documentation.
- Firmware or software variation Different firmware versions or regional drive variants may use fault codes not present in all manuals.
Step-by-Step Fix
- Record all fault information including the exact code displayed, your GA800 model number, specification code, serial number, and any application details before resetting.
- Consult your drive’s manual or the built-in fault history menu to verify what E02 means for your specific GA800 model and firmware version.
- Inspect all wiring and connections at the drive terminals, motor leads, and any control or communication cables for looseness, damage, or corrosion.
- Review parameter settings using the keypad or DriveWizard Plus software to confirm motor data, application settings, and communication configurations match your equipment.
- Remove the underlying cause of the fault as identified in your manual or through inspection before attempting to clear the code.
- Press the RESET button on the GA800 keypad after correcting the problem to clear the fault and restore normal operation.
- Contact Yaskawa technical support with your recorded drive information and fault details if the code persists, the meaning is unclear, or the fault returns immediately after reset.
Parts Often Needed
| Part | Notes |
|---|---|
| GA800 Control Board | Amazon | Replacement board if parameter corruption or internal fault is confirmed by Yaskawa support. |
| GA800 Cooling Fan | Amazon | Standard maintenance part, though not specifically linked to E02 fault. |
When to Call a Pro
Contact a qualified Yaskawa technician or distributor if you cannot find E02 in your GA800 manual, if the fault returns immediately after reset, or if you lack experience with VFD parameter programming. Because E02 is not documented in standard manufacturer materials, professional diagnosis is recommended to avoid incorrect repairs or unsafe operating conditions. Yaskawa technical support can provide model-specific fault definitions and guide troubleshooting based on your drive’s exact configuration and application.