List Of Fault Displays - Mitsubishi Electric FR-A820-00046 (0.4K) Instruction Manual

6.4

List of fault displays

If the displayed message does not correspond to any of the
following or if you have any other problem, contact your sales
representative.
 Error message
• A message regarding operational fault and setting fault
by the operation panel and the parameter unit is
displayed. The inverter output is not shut off.
Operation panel
indication
Operation panel lock
Password locked
to
Parameter write error
to
Copy operation fault
to
Error
 Warning
• The inverter output is not shut off even when a warning is
displayed. However, failure to take appropriate measures
will lead to a fault.
Operation panel
indication
Stall prevention (overcurrent)
Stall prevention (overvoltage)
Regenerative brake pre-alarm
Electronic thermal relay function
pre-alarm
PU stop
Speed limit indication
Parameter copy
Safety stop
to
Maintenance signal output
USB host error
Home position return setting error
742
6. PROTECTIVE FUNCTIONS
6.4 List of fault displays
Refer
Name
to page
745
745
745,
746
746,
747
747
Refer
Name
to page
748
748
748
749
749
749
749
749
750
750
750
Operation panel
indication
Home position return uncompleted
Home position return parameter
setting error
Continuous operation during
communication fault
Load fault warning
 Alarm
• The inverter output is not shut off. An Alarm (LF) signal
can also be output with a parameter setting.
Operation panel
indication
Fan alarm
Internal fan alarm
 Fault
• When a protective function is activated, the inverter
output is shut off and a Fault (ALM) signal is output.
• The data code is used for checking the fault detail via
communication or with Pr.997 Fault initiation.
 Data code 16 to 199
Operation panel
indication
Overcurrent trip during
acceleration
Overcurrent trip during
constant speed
Overcurrent trip during
deceleration or stop
Regenerative overvoltage
trip during acceleration
Regenerative overvoltage
trip during constant speed
Regenerative overvoltage
trip during deceleration or
Inverter overload trip
(electronic thermal relay
Motor overload trip
(electronic thermal relay
Heatsink overheat
Instantaneous power failure
Undervoltage
Input phase loss
Stall prevention stop
Loss of synchronism
detection
Refer
Name
to page
750
750
750
750
Refer
Name
to page
750
751
Data Refer
Name
Code to page
16
751
(H10)
17
752
(H11)
18
752
(H12)
32
753
(H20)
33
753
(H21)
34
753
(H22)
48
753
(H30)
49
754
(H31)
64
754
(H40)
80
754
(H50)
81
754
(H51)
82
755
(H52)
96
755
(H60)
97
755
(H61)