ABB ACS850 Firmware Manual page 231

Code Alarm
(fieldbus code)
2043 STALL
(0x7121)
Programmable fault:
30.09 Stall function
2044 LCURVE
(0x2312)
Programmable fault:
34.01 Overload func
34.02 Underload func
2045 LCURVE PAR
(0x6320)
2046 FLUX REF PAR
(0x6320)
2047 SPEED FEEDBACK
(0x8480)
2048 OPTION COMM
LOSS
(0x7000)
2049 MOTTEMPAL2
(0x4313)
Programmable fault:
31.05 Mot temp2 prot
2050 IGBTOLALARM
(0x5482)
2051 IGBTTEMPALARM
(0x4210)
Cause
Motor is operating in stall
region because of e.g.
excessive load or insufficient
motor power.
Overload or underload limit
has been exceeded.
/
The load curve has been
incorrectly or inconsistently
defined.
The U/f (voltage/frequency)
curve has been incorrectly or
inconsistently defined.
No speed feedback is
received.
Communication between drive
and option module (FEN-xx
and/or FIO-xx) is lost.
Estimated motor temperature
(based on motor thermal
model) has exceeded alarm
limit defined by parameter
31.07 Mot temp2 almLim.
Measured motor temperature
has exceeded alarm limit
defined by parameter
Mot temp2 almLim.
Excessive IGBT junction to
case temperature. This fault
protects the IGBT(s) and can
be activated by a short circuit
in the motor cable.
Drive IGBT temperature is
excessive. Fault trip limit is
100%.
What to do
Check motor load and drive ratings.
Check fault function parameters.
Check the settings of the parameters in
group 34 User load
Check the settings of the parameters in
group 34 User load
Check the settings of the parameters in
group 38 Flux
Check the settings of the parameters in
group 19 Speed
Check encoder installation. See the
description of fault
information.
Check that option modules are properly
connected to Slot 1 and (or) Slot 2.
Check that option modules or Slot 1/2
connectors are not damaged. To
determine whether module or connector
is damaged: Test each module
individually in Slot 1 and Slot 2.
Check motor ratings and load.
Let motor cool down. Ensure proper
motor cooling: Check cooling fan, clean
cooling surfaces, etc.
Check value of alarm limit.
Check motor thermal model settings
(parameters 31.09...31.14).
Check that actual number of sensors
corresponds to value set by parameter
31.07 31.06 Mot temp2
Check motor ratings and load.
Let motor cool down. Ensure proper
motor cooling: Check cooling fan, clean
cooling surfaces, etc.
Check value of alarm limit.
Check motor cable.
Check ambient conditions.
Check air flow and fan operation.
Check heatsink fins for dust pick-up.
Check motor power against drive power.
Fault tracing 231
curve.
curve.
ref.
calculation.
0039 for more
src.