Siemens MICROMASTER 440 Operating Instructions Manual page 75

Issue B1
Fault Possible Causes
Wire breakage of inverter
F0012
temperature (heatsink) sensor
Inverter temp.
signal lost
Open or short circuit of motor
F0015
temperature sensor. If signal loss is
Motor
detected, temperature monitoring
temperature
switches over to monitoring with the
signal lost
motor thermal model
Fault occurs if one of the three input
F0020
phases is missed and the pulses are
Mains Phase
enabled and drive is loaded
Missing
Fault occurs if the sum of the phase
F0021
currents is higher than 5 % of the
Earth fault
nominal inverter current.
Note
This fault only occurs on inverters that
have 3 current sensors (Frame sizes
D to F)
Fault caused by the following events:
F0022
(1) dc-link overcurrent = short circuit
Powerstack
of IGBT
fault
(2) short circuit of chopper
(3) earth fault
Ø Framesizes A to C (1),(2),(3)
Ø Framesizes D to E (1),(2)
Ø Framesize 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.
Fan no longer working
F0030
Fan has failed
F0040
Automatic
Calibration
Failure
MICROMASTER 440 Operating Instructions
6SE6400-5AC00-0BP0
7 MICROMASTER 440 specifications
Diagnose & Remedy
Check the input wiring of the mains phases
Fault cannot be masked while options module
(AOP or BOP) is connected. Need a new fan.
Reac-
tion
OFF1
OFF2
OFF2
OFF2
OFF2
OFF2
OFF2
75