Amtech Axpert-Eazy Series Instruction Manual page 135

GROUP – 5: AUTO RESTART & SPEED SEARCH
C501: Number Of Restart
C502: Restart wait Time (Sec)
Restart is function to reset the fault in the AC DRIVE and restart automatically to continue operation if
a fault occurs. User can select these parameters to automatically restart the unit in fault condition to
provide reliability and continuity of process during fault conditions.
Programming 0 in C501 disables the restart feature. Number of restart C501 defines the number of
attempts to restart during the fault condition.
When a fault is detected, the AC DRIVE output is shut off for the restart wait time C502. The operation
panel displays the fault while the AC DRIVE output is OFF.
When the restart wait time elapses, a fault is reset automatically and speed search operation is
performed.
When the number of such attempts exceeds the number of restart C501, the faults are not reset
automatically and the AC DRIVE output remains OFF. At this time a fault relay is activated and the
fault data will be stored in fault history. The RUN relay will also be deactivated. 6
Fout
A103
OC OC OC
M105
t
C502
n=1 n=2 n=3
Internal
fault
The number of restart times is cleared to 0 in the following cases.
1. A fault does not occur for more than 10 minutes.
2. A fault reset signal is applied from the operation panel or terminal.
3. The power supply is turned off and turned ON again.
This function is applicable to the following ten faults.
1. Instantaneous over current fault.
2. Drive over load fault.
3. Over voltage fault.
4. Under voltage fault.
5. Adjustable over current fault.
6. Earth fault.
7. Over temperature fault.
8. Under current fault.
9. External fault.
10. Phase loss fault.
Axpert-Eazy AC Variable Frequency Drive
6-89