Mitsubishi Electric FR-F700 Series, Instruction Manual

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62
List of alarm display
5 TROUBLESHOOTING
When an alarm occurs in the inverter, the protective function is activated bringing the inverter to an alarm stop and
the PU display automatically changes to any of the following error (alarm) indications.
If your fault does not correspond to any of the following errors or if you have any other problem, please contact your
sales representative.
•
Retention of alarm output signal ..................When the magnetic contactor (MC) provided on the input side of the
inverter is opened at the activation of the protective function, the inverter's
control power will be lost and the alarm output will not be held.
•
Alarm display ............................................When the protective function is activated, the operation panel display
automatically switches to the above indication.
•
Resetting method............................................When the protective function is activated, the inverter output is kept stopped.
Unless reset, therefore, the inverter cannot restart.
(Refer to page 74.)
•
When the protective function is activated, take the corresponding corrective action, then reset the inverter, and
resume operation.
5.1 List of alarm display
* If an error occurs when using the FR-PU04, "Fault 14" is displayed
on the FR-PU04.
Operation Panel
Indication
Name
Refer
to
E
rro
r me
s
s
a
g
e
HOLD Operation panel lock 63
Er1 to 4 Parameter write error 63
rE1 to 4 Copy operation error 63
Err. Error 64
Wa
rn
in
g
s
OL Stall Prevention (overcurrent) 65
oL Stall prevention (overvoltage) 65
RB Regenerative brake prealarm 66
TH
Electronic thermal relay
function prealarm
66
PS PU Stop 65
MT Maintenance signal output 66
CP Parameter copy 66
M
inor
f
a
u
lt
FN Fan fault 66
Ma
jo
r f
a
ilu
re
s
E.OC1
Overcurrent shut-off
during acceleration
67
E.OC2
Overcurrent shut-off
during constant speed
67
E.OC3
Overcurrent shut-off during
deceleration or stop
67
E.OV1
Regenerative overvoltage
shut-off during acceleration
67
E.OV2
Regenerative overvoltage
shut-off during constant
speed
68
E.OV3
Regenerative overvoltage
shut-off during
deceleration or stop
68
E.THT
Inverter overload shut-off
(electronic thermal relay function)
68
E.THM
Motor overload shut-off
(electronic thermal relay function)
68
E.FIN Fin overheat 69
E.IPF
Instantaneous power
failure protection
69
E.UVT Undervoltage protection 69
to
to
Ma
jo
r fa
ilu
re
s
E.ILF* Input phase failure 69
E.OLT Stall Prevention 70
E.GF
Output side ground fault
overcurrent protection
70
E.LF
Output phase failure
protection
70
E.OHT
External thermal relay
operation
*2
70
E.PTC* PTC thermistor operation 70
E.OPT Option alarm 70
E.OP1 Option slot alarm 71
E. 1 Option alarm 71
E.PE
Parameter storage devide
alarm
71
E.PUE PU disconnection 71
E.RET Retry count excess 71
E.PE2*
Parameter storage devide
alarm
71
/
/
E. 6 /
E. 7 /
E.CPU
CPU error 72
E.CTE
Operation panel power
supply short circuit
RS-485 terminals power
supply short circuit
72
E.P24
24VDC power output short
circuit
72
E.CDO*
Output current detection
value exceeded
72
E.IOH* Inrush resistor overheat 72
E.SER*
Communication error
(inverter)
73
E.AIE* Analog input error 73
E.BE
Brake transistor alarm
detection
69
E.13* Internal circuit error 73
Operation Panel
Indication
Name
Refer
to