288
Fault tracing
3ADW000379R0501 DCS550 Manual e e
7-segment
display
Text on DCS
Control Panel
and DWL
Definition / Action
Fault-
word
Fault is
active when
T
ri
p
level
F501 501
AuxUnderVolt
Auxiliary undervoltage:
The auxiliary voltage is too low while the drive is in
operation. If resetting fails, check:
−
internal auxiliary voltages (SDCS-CON-F)
−
change SDCS-CON-F and / or SDCS-PIN-F
Auxiliary supply voltage
Trip level
230 V
AC
< 95 V
AC
115 V
AC
< 95 V
AC
230 V
DC
< 140 V
DC
9.01,
bit 0
RdyRun = 1 1
F502 502 ArmOverCur Armature overcurrent:
Check:
−
ArmOvrCurLev (30.09)
−
parameter settings of group 43 (current control:
armature current controller tuning)
−
current and torque limitation in group 20
−
all connections in the armature circuit, especially the
incoming voltage for synchronizing. If the
synchronizing voltage is not taken from the mains (e.g.
via synchronizing transformer or 230 V / 115 V
network) check that there is no phase shift between the
same phases (use an oscilloscope).
−
for faulty thyristors
−
armature cabling
−
if TypeCode (97.01) is set properly
9.01,
bit 1
always
3
F503 503 ArmOverVolt Armature overvoltage (DC):
Check:
−
if setting of ArmOvrVoltLev (30.08) is suitable for the
system
−
parameter settings of group 44 (field excitation: field
current controller tuning, EMF controller tuning, flux
linearization)
−
too high field current (e.g. problems with field
weakening)
−
if the motor was accelerated by the load,
−
overspeed
−
does the speed scaling fit, see SpeedScaleAct (2.29)
−
proper armature voltage feedback
−
connector X12 and X13 on SDCS-CON-F
−
connector X12 and X13 on SDCS-PIN-F
9.01,
bit 2
always
1
F504 504
ConvOverTemp
Converter overtemperature:
Wait until the converter is cooled down. Shutdown
temperature see MaxBridgeTemp (4.17). Check:
−
converter cover missing
−
converter fan supply voltage
−
converter fan direction of rotation
−
converter fan components
−
converter cooling air inlet (e.g. filter)
−
converter cooling air outlet
−
ambient temperature
−
inadmissible load cycle
9.01,
bit 3
always
2
Summary of Contents for DCS550 Series
Page 1: ... DCS550 Manual DCS550 Drives 20 A to 1000 A ...
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