Check And Clear Of The Fault History - Mitsubishi Electric FR-D720-0.2K-G Instruction Manual

4.23 Check and clear of the fault history

(1) Check for the fault history
Monitor/speed setting
[Operation panel is
used for operation]

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.

The cumulative energization time and actual operation time are accumulated from 0 to 65535 hours, then cleared, and accumulated again from 0.
When the operation panel is used, the time is displayed up to 65.53 (65530h) in the indication of 1h = 0.001, and thereafter, it is added up from 0.
Fault history
[Operation for displaying the fault history]
Past eight faults can be displayed with the setting dial.
(The latest fault is ended by ".".)
When no fault exists,
Blinking
Press the
setting dial.
Blinking
Press the
setting dial.
Blinking
Press the
setting dial.

Check and clear of the fault history

Parameter setting
[Parameter setting change]
i is displayed.
Rotation speed
Blinking
Energization time ∗2
Blinking
Fault history number
(The number of past faults is displayed.)
∗1
Output current
A
Blinking
Output voltage
Blinking
249
4