Check And Clear Of The Fault History - Mitsubishi Electric 800 Series Instruction Manual

2.3

Check and clear of the fault history

The operation panel stores the fault indications which appear when a protective function is activated to display the fault record
for the past 10 faults. (Fault history)
 Check for the fault history
Monitor mode
Fault history mode
Fault record 1
Fault record 2
*1 When an overcurrent trip occurs by an instantaneous overcurrent, the monitored current value saved in the fault history may be lower than the
actual current that has flowed.
*2 The cumulative energization time and actual operation time are accumulated from 0 to 65535 hours, then cleared, and accumulated again from 0.
 Fault history clearing procedure
• Set Er.CL Fault history clear = "1" to clear the fault history.
14
2. Protective Functions
2.3 Check and clear of the fault history
Parameter setting mode
[Operation for displaying fault history]
The last eight fault records can be displayed.
Fault record 10
When the fault history is empty,
only the fault record number is displayed.
Output frequency
Blinking
Cumulative
energization time 
Blinking
Output current 
Blinking
Output voltage
Blinking