ABB ACS850-04 - Page 265

Fault tracing 265
2043 STALL
(0x7121)
Programmable fault:
30.09 Stall function
Motor is operating in stall
region because of e.g.
excessive load or insufficient
motor power.
Check motor load and drive ratings.
Check fault function parameters.
2044 LCURVE
(0x2312)
Programmable fault:
34.01 Overload func /
34.02 Underload func
Overload or underload limit
has been exceeded.
Check the settings of the parameters in
group 34 User load curve.
2045 LCURVE PAR
(0x6320)
The load curve has been
incorrectly or inconsistently
defined.
Check the settings of the parameters in
group 34 User load curve.
2046 FLUX REF PAR
(0x6320)
The U/f (voltage/frequency)
curve has been incorrectly or
inconsistently defined.
Check the settings of the parameters in
group 38 Flux ref.
2047 SPEED FEEDBACK
(0x8480)
No speed feedback is
received.
Check the settings of the parameters in
group 19 Speed calculation.
Check encoder installation. See the
description of fault 0039 for more
information.
2048 OPTION COMM
LOSS
(0x7000)
Communication between drive
and option module (FEN-xx
and/or FIO-xx) is lost.
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.
2049 MOTTEMPAL2
(0x4313)
Programmable fault:
31.05 Mot temp2 prot
Estimated motor temperature
(based on motor thermal
model) has exceeded alarm
limit defined by parameter
31.07 Mot temp2 almLim.
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).
Measured motor temperature
has exceeded alarm limit
defined by parameter 31.07
Mot temp2 almLim.
Check that actual number of sensors
corresponds to value set by parameter
31.06 Mot temp2 src.
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.
2050 IGBTOLALARM
(0x5482)
Excessive IGBT junction to
case temperature. This alarm
protects the IGBT(s) and can
be activated by a short circuit
in the motor cable.
Check motor cable.
2051 IGBTTEMPALARM
(0x4210)
Drive IGBT temperature is
excessive.
Check ambient conditions.
Check air flow and fan operation.
Check heatsink fins for dust pick-up.
Check motor power against drive power.
Code Alarm
(fieldbus code)
Cause What to do