Code

Name

Causes

Possible Solutions

EF7

External Fault (Terminal S7)

MFDI terminal S7 caused an external fault through an external device.

  1. Find the device that caused the external fault and remove the cause.

  2. Clear the external fault input in the MFDI.

The wiring is incorrect.

Correctly connect the signal line to MFDI terminal S7.

External Fault [H1-07 = 20 to 2B] is set to MFDI terminal S7, but the terminal is not in use.

Correctly set the MFDI.
Note:

Do a Fault Reset to clear the fault.