EF6
External Fault (Terminal S6)
Yaskawa · GA500 Maintenance and Troubleshooting
What does EF6 mean?
An external fault signal was received via MFDI terminal S6, possibly due to a problem with the connected external device, faulty wiring, or a misconfiguration where parameter H1-06 is set for an external fault (range 20 to 2B) but the terminal is not actively utilized. This will cause the drive to trip and stop the motor, potentially disrupting the process.
Additional Steps
Steps 1–2 are listed in Priority Fix.
- 3
Verify and correct the signal line wiring connected to MFDI terminal S6, ensuring proper connections and no shorts.
- 4
If parameter H1-06 is configured for an external fault (range 20 to 2B), ensure the terminal is correctly used or reconfigure the parameter if it's unintentionally set.
Source: Yaskawa GA500 Maintenance and Troubleshooting
View Official PDF