Check And Clear Of The Fault History - Mitsubishi Electric FR-A872-P Instruction Manual

4.3

Check and clear of the fault history

The operation panel stores the past eight fault records which appears when a protective function is activated. (Fault history)
 Check for the fault history
Monitor mode
Fault history mode
Fault record 1
Fault record 2
Fault record 8
When the fault history is
empty, "E0" is displayed.
*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 Err.CL Fault history clear = "1" to clear the fault history.
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4. PROTECTIVE FUNCTIONS
4.3 Check and clear of the fault history
Parameter setting mode
[Operation for displaying fault history]
The last eight fault records can be displayed.
(On the display of the last fault record (fault record 1), a decimal point LED is ON.)
Press the
setting dial.
Fault record number
Latest fault
Fault record number
Second latest fault
Press the
setting dial.
Fault record number
Eighth latest fault
Press the
setting dial.
Function mode
Output frequency
Blinking
Time
Blinking
Day
Blinking
Month
Blinking
Output current 
Blinking
Output voltage
Blinking
Cumulative
energization time 
Blinking
Year
Blinking