Code

Name

Causes

Possible Solutions

EF0

Option Card External Fault

The communication option card received an external fault from the controller.

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

  2. Clear the external fault input from the controller.

Programming error occurred on the controller side.

Examine the operation of the controller program.
Note:

  • The drive detects this error if the alarm function on the external device side is operating.

  • If the drive detects this error, the terminal assigned to H2-01 to H2-04 = 10 [MFDO Function Select = Alarm] will be ON.

  • Set the stopping method for this fault in F6-03 [Comm External Fault (EF0) Select].