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Siemens Building Technologies Commissioning Guide CM1G5192en
HVAC Products 9 Error messages 26.02.2003
Error Cause Diagnosis and troubleshooting Res-
ponse
F0022
Power stack fault
The fault is caused by the following events:
♦ (1) dc link overcurrent =short-circuit of
IGBT
♦ (2) short-circuit of dc link chopper
♦ (3) earth fault.
Ø Frame sizes A to C (1),(2),(3)
Ø Frame sizes D to E (1),(2)
Ø Frame size F (2)
Since all these faults are assigned to one
signal on the power stack, it is not possible to
establish which one actually occurred.
Off2
F0023
Fault at VSD
output
One phase is interrupted at the VSD output. Check wiring of the 3 phases at the VSD output and at
the motor terminals
Check if the stator winding of the motor is interrupted
Replace the VSD
Off2
F0024
Rectifier
overtemperature
Ø
Ventilation is inadequate
Ø Fan is inoperative
Ø Ambient temperature is too high
Check the following:
1. The fan must turn when the VSD is running
2. The pulse frequency (P1800) must be set to default
value 4 kHz
F0030
Fan fault
Ø
Fan no longer works The fault cannot be masked while the options module
(AOP or BOP) is connected
Replace the fan
Off2
F0041
Motor data identi-
fication failure
Ø
Motor data identification failed
Ø Alarm value = 0: Load is missing
Ø Alarm value = 1: Current limit value
reached during identification
Ø Alarm value = 2: Identified stator resistance
less than 0.1 % or more than 100 %
Ø Alarm value = 3: Identified rotor resistance
less than 0.1 % or more than 100 %
Ø Alarm value = 4: Identified stator reactance
less than 50 % or more than 500 %
Ø Alarm value = 5: Identified main reactance
less than 50 % or more than 500 %
Ø Alarm value = 6: Identified rotor time con-
stant less than 10 ms or more than 5 s
Ø Alarm value = 7: Identified total leakage
reactance less than 5 % or more than 50 %
Ø Alarm value = 8: Identified stator leakage
reactance less than 25 % or more than
250%
Ø Alarm value = 9: Identified rotor leakage
reactance less than 25 % or more than
250%
Ø Alarm value = 20: Identified IGBT ON
voltage less than 0.5 or more than 10 V
Ø Alarm value = 30: Current controller at
voltage limit
Ø Alarm value = 40: Inconsistency of identi-
fied data set, at least one identification
failed
Percentage values based on impedance
Zb = Vmot,nom / sqrt(3) / Imot,nom.
0: Check if the motor is connect to the VSD
1-40: Check if the motor data in P304-311 are correct
Check the type of motor wiring required (star, delta)
Off2
F0051
Parameter
EEPROM fault
Ø Read or write failure while saving non-
volatile parameter
Reset VSD to factory setting and reparameterize Off2
F0052
Power stack fault
Ø
Read failure for power stack information or
invalid data
1. Ensure firmware version (r0018) is version 1.17 or
higher and
2. Replace I/O board (contact customer service)
Off2
F0053
I/O EEPROM fault
Ø Read failure for I/O EEPROM information
or invalid data
Check the data
Exchange the I/O module
Off2
F0054
Wrong I/O print
Ø
I/O print is not connected
Ø Wrong I/O print is connected
Ø NO ID found on I/O print, no data
Check data flow
Exchange I/O module
Off2
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