YASKAWA GA800

Troubleshooting
7
7.4 Fault
YASKAWA SIEPC71061737D GA800 Drive Technical Reference 389
Code Name Causes Possible Solutions
Uv3 Soft Charge Answerback Fault
There is damage to the relay or contactor on the soft-
charge bypass relay.
• Re-energize the drive.
• If the fault stays, replace the control board or the drive.
• Monitor U4-06 [PreChargeRelayMainte] shows the performance
life of the soft-charge bypass relay. If U4-06 is more than 90%,
replace the board or the drive. For information about replacing
the control board, contact Yaskawa or your nearest sales
representative.
Air inside the drive is too hot. Decrease the ambient temperature of the drive.
Note:
• Do a Fault Reset to clear the fault.
• Fault trace is not available for these faults.