Mitsubishi Electric FR-A800, Instruction Manual

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The list of fault displays Protective functions
6 - 6
Alarm
The inverter does not trip. An Alarm (LF) signal can also be output with a parameter setting.
Fault
●
A protective function trips the inverter and outputs a Fault (ALM) signal.
●
The data code is used for checking the fault detail via communication or with Pr. 997 "Fault
initiation".
Operation panel indication Name Data code
Refer to
page
FN Fan alarm
⎯
6-17
FN2 Internal fan alarm
⎯
6-17
Tab. 6-6: Alarm
Operation panel indication Name Data code
Refer to
page
E.OC1 Overcurrent trip during acceleration
16
(H10)
6-18
E.OC2 Overcurrent trip during constant speed
17
(H11)
6-19
E.OC3 Overcurrent trip during deceleration or stop
18
(H12)
6-20
E.OV1
Regenerative overvoltage trip during
acceleration
32
(H20)
6-20
E.OV2
Regenerative overvoltage trip during constant
speed
33
(H21)
6-21
E.OV3
Regenerative overvoltage trip during
deceleration or stop
34
(H22)
6-21
E.THT
Inverter overload trip (electronic thermal relay
function)
48
(H30)
6-22
E.THM
Motor overload trip (electronic thermal relay
function)
49
(H31)
6-22
E.FIN Heatsink overheat
64
(H40)
6-22
E.IPF Instantaneous power failure
80
(H50)
6-23
E.UVT Undervoltage
81
(H51)
6-23
E.ILF Input phase loss
82
(H52)
6-23
E.OLT Stall prevention stop
96
(H60)
6-24
E. SOT Loss of synchronism detection
97
(H61)
6-24
E.BE Brake transistor alarm detection
112
(H70)
6-25
E.GF Output side earth (ground) fault overcurrent
128
(H80)
6-25
E.LF Output phase loss
129
(H81)
6-25
E.OHT External thermal relay operation
144
(H90)
6-25
Tab. 6-7: Fault (1)