List Of Fault Displays - Mitsubishi Electric FR-F820-00046 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)
Electronic thermal relay function
pre-alarm
PU stop
Parameter copy
Safety stop
to
Maintenance signal output
USB host error
Emergency drive in operation
Continuous operation during
communication fault
Load fault warning
566
6. PROTECTIVE FUNCTIONS
6.4 List of fault displays
Refer
Name
to page
568
568
568,
569
569,
570
570
Refer
Name
to page
571
571
571
572
572
572
572
572
573
573
573
 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
Upper limit fault detection
Lower limit fault detection
Internal circuit fault
Output side earth (ground)
fault overcurrent
Output phase loss
Refer
Name
to page
573
573
Data Refer
Name
code to page
16
574
(H10)
17
574
(H11)
18
575
(H12)
32
575
(H20)
33
575
(H21)
34
576
(H22)
48
576
(H30)
49
576
(H31)
64
576
(H40)
80
577
(H50)
81
577
(H51)
82
577
(H52)
96
578
(H60)
97
578
(H61)
98
578
(H62)
99
578
(H63)
112
582
(H70)
128
579
(H80)
129
579
(H81)