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Troubleshooting and Maintenance
6.2 FAULTS, ALARMS, AND POSSIBLE CAUSES
Fault/Alarm
F006
Imbalance or Input Phase
Loss
F021
DC Link Undervoltage
F022
DC Link Overvoltage
F030
Power Module U Fault
F034
Power Module V Fault
F038
Power Module W Fault
A047
IGBT Overload Alarm
F048
IGBT Overload Fault
A050
IGBT High Temperature U
F051
IGBT Overtemperature U
6
A053
High Temperature on
IGBTs V
F054
Overtemperature on IGBTs
V
A056
High Temperature on
IGBTs W
F057
Overtemperature on IGBTs
W
F071
Input Overcurrent
6-2 | CFW-11 RB
Table 6.1: Faults, alarms and possible causes
Description
Phase missing in the input power supply or
wrong phase sequency.
DC Link undervoltage condition occurred.
DC Link overvoltage condition occurred.
Desaturation of IGBT occured in Power
Module U.
Desaturation of IGBT occured in Power
Module V.
Desaturation of IGBT occured in Power
Module W.
A IGBT overload alarm occurred.
A IGBT overload fault occurred.
A high temperature alarm was detected by
the NTC temperature sensors located on
the IGBTs.
Note:
It may be disabled by setting P0353 = 2
or 3.
Overtemperature fault on the IGBTs of
phase U.
Alarm of high temperature measured at the
temperature sensors (NTC) of the IGBTs.
Note:
It can be disabled by setting P0353 = 2 or
3.
Overtemperature fault on the IGBTs of
phase V.
Alarm of high temperature measured at the
temperature sensors (NTC) of the IGBTs.
Note:
It can be disabled by setting P0353 = 2 or
3.
Overtemperature fault on the IGBTs of
phase W.
Input overcurrent fault.
Possible Causes
CSR11 board connections.
„
Synchronism transformer connections.
„
Power supply connections.
„
The input voltage is too low and the DC Link voltage
„
dropped below the minimum permitted value (monitor the
value at Parameter P0004):
Ud < 223 V - For a 200 / 240 V input voltage (P0296 = 0).
Ud < 385 V - For a 380 V input voltage (P0296 = 1).
Ud < 405 V - For a 400 / 415 V input voltage (P0296 = 2).
Ud < 446 V - For a 440 / 460 V input voltage (P0296 = 3).
Ud < 487 V - For a 480 V input voltage (P0296 = 4).
Ud < 530 V - For a 500 / 525 V input voltage (P0296 = 5).
Ud < 580 V - For a 550 / 575 V input voltage (P0296 = 6).
Ud < 605 V - For a 600 V input voltage (P0296 = 7).
Ud < 696 V - For a 660 / 690 V input voltage (P0296 = 8).
Phase loss in the input power supply.
„
Pre-charge circuit failure.
„
Parameter P0296 was set to a value above of the power
„
supply rated voltage.
The input voltage is too high and the DC Link voltage
„
surpassed the maximum permitted value:
Ud > 400 V - For 220 / 230 V input models (P0296 = 0).
Ud > 800 V - For 380 / 480 V input models (P0296 = 1,
2, 3 or 4).
Ud > 1000 V - For 500 / 600 V input models (P0296 = 5,
6 or 7).
Ud > 1200 V - For 660 / 690 V input models (P0296 = 8).
Iner tia of the driven-load is too high or deceleration time
„
is too short.
Setting of P0151 too high.
„
Short-circuit between motor phases U and V or U and W.
„
Short-circuit between motor phases V and U or V and W.
„
Short-circuit between motor phases W and U or W and V.
„
Converter input current is too high.
„
Converter input current is too high.
„
Surrounding air temperature is too high (> 40 °C or 45 °C
„
(104 °F or 113 °F) depending on the converter model - refer
to
Section 3.1 MECHANICAL INSTALLATION on page
and output current is too high.
Blocked or defective fan.
„
Very dirty heatsink.
„
Input reactance too low.
„
Setting of P0169 and P0170 too high.
„
3-1)
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