EF4 · GA800 · Fault
For EF4 · GA800 · Fault, brand is Yaskawa; model / series is GA800; fault code is EF4; fault name is External Fault (Terminal S4); type is Fault, verified against its source on 2026-09-01.
- Brand
- Yaskawa
- Model / series
- GA800
- Fault code
- EF4 verified
- Fault name
- External Fault (Terminal S4) verified
- Type
- Fault verified
- Cause
- MFDI terminal S4 caused an external fault through an external device. verified
- Corrective action
- 1. Find the device that caused the external fault and remove the cause. 2. Clear the external fault input in the MFDI. verified
What the source says
EF4 (0012) External Fault (Terminal S4) Illuminated Fault 102
— 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
MFDI terminal S4 caused an external fault through an external device.
Corrective action
1. Find the device that caused the external fault and remove the cause. 2. Clear the external fault input in the MFDI.
— all from yaskawa.com, retrieved 2026-09-01
Source
- yaskawa.comhttps://www.yaskawa.com/delegate/getAttachment?documentId=TOEPYAIGA8001&cmd=documents&documentName=TOEPYAIGA8001.pdf