CoF · GA800 · Fault
For CoF · GA800 · Fault, brand is Yaskawa; model / series is GA800; fault code is CoF; fault name is Current Offset Fault; type is Fault, verified against its source on 2026-09-01.
- Brand
- Yaskawa
- Model / series
- GA800
- Fault code
- CoF verified
- Fault name
- Current Offset Fault verified
- Type
- Fault verified
- Cause
- The drive starts operation while the induced voltage stays in the motor (during coasting to a stop or after fast deceleration). verified
- Corrective action
- • Make a sequence that does not restart operation when induced voltage stays in the motor. • Set b3-01 = 1 [Speed Search at Start Selection = Enabled]. • Use Speed Search from Fmax or Fref [H1-xx = 61, 62] to do a speed search through one of the external terminals. verified
What the source says
CoF (0046) Current Offset Fault Illuminated Fault 94
— yaskawa.com, retrieved 2026-09-01
Where each value comes from
This source states these in separate places, so each value is shown with the passage that states it.
Cause
The drive starts operation while the induced voltage stays in the motor (during coasting to a stop or after fast deceleration).
Corrective action
• Make a sequence that does not restart operation when induced voltage stays in the motor. • Set b3-01 = 1 [Speed Search at Start Selection = Enabled]. • Use Speed Search from Fmax or Fref [H1-xx = 61, 62] to do a speed search through one of the external terminals.
— all from yaskawa.com, retrieved 2026-09-01
Source
- yaskawa.comhttps://www.yaskawa.com/delegate/getAttachment?documentId=TOEPYAIGA8001&cmd=documents&documentName=TOEPYAIGA8001.pdf