Chapter 14 Fault Codes and Descriptions
ME300
No. Display on LED Keypad Fault Name Fault Descriptions
49
External fault
(EF)
External fault. W
hen the drive decelerates based on the
setting of Pr.07-20, the EF fault displays on the keypad
Action and Reset
Action condition MI = EF and the MI terminal is ON.
Action time Immediately act
Fault treatment parameter
Pr.07-20
0: Coast to stop
1: Stop by first deceleration time
2: Stop by second deceleration time
3: Stop by third deceleration time
4: Stop by fourth deceleration time
5: System deceleration
6: Automatic deceleration
Reset method Manual reset
Reset condition Manual reset only after the external fault is cleared (terminal status is recovered).
Record Yes
Cause Corrective Actions
External fault Press RESET key after the fault is cleared.
No. Display on LED Keypad Fault Name Fault Descriptions
50
Emergency stop
(EF1)
When the contact of MI = EF1 is ON, the output stops
immediately and displays EF1 on the keypad. The
motor is in free running.
Action and Reset
Action condition MI = EF1 and the MI terminal is ON.
Action time Immediately act
Fault treatment parameter N/A
Reset method Manual reset
Reset condition Manual reset only after the external fault is cleared (terminal status is recovered).
Record Yes
Cause Corrective Actions
MI = EF1 activates
Verify if the system is back to normal condition, and then press RESET key to
return to the default.
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