Mitsubishi Electric FR-A842-07700, Instruction Manual

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Check and clear of the fault history
PROTECTIVE FUNCTIONS
93
4
4.3
Check and clear of the fault history
The operation panel stores the fault indications which appears when a protective function is activated to display the fault
record for the past eight faults. (Fault history)
 Check for the fault history
∗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 mode
Monitor mode Parameter setting mode Function 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.
When the fault history is
empty, "E0" is displayed.
Latest fault
Second latest fault
Eighth latest fault
Fault record 1
Output frequency
Blinking Blinking
Blinking Blinking
Blinking Blinking
Blinking Blinking
Cumulative
energization time
∗2
Fault record number
Fault record number
Fault record number
Output current
∗1
Output voltage
Fault record 2
Fault record 8
Press the
setting dial.
Press the
setting dial.
Press the
setting dial.
Time
Day
Month Year