ABB ACS880-01-061A-3+N5350 - Page 188

Troubleshooting 13-153AXD50000011888
Table 13-2 Fault Messages (Alphabetical by Keypad Text)
Fault Fault # Cause What to do
Motor stall
Programmable fault: 31.24
Stall function
7121 Motor is operating in stall
region because of e.g.
excessive load or
insufcient motor power.
Check motor load and drive ratings.
Check fault function parameters.
Brake resistor 7181 Brake resistor broken or
not connected.
Check that a brake resistor has been connected.
Check the condition of the brake resistor.
Check the dimensioning of the brake resistor.
BR excess
temperature
7183 Brake resistor temperature
has exceeded fault limit
dened by parameter
43.11 Brake resistor
fault limit.
Stop drive. Let resistor cool down.
Check resistor overload protection function settings
(parameter group 43 Brake chopper).
Check fault limit setting, parameter 43.11 Brake resistor
fault limit.
Check that braking cycle meets allowed limits.
Brake resistor
wiring
7184 Brake resistor short circuit
or brake chopper control
fault.
Check brake chopper and brake resistor connection.
Ensure brake resistor is not damaged. After correcting the
cause of the fault, reboot the control unit (using parameter
96.08 Control board boot) or by cycling power.
BC short circuit 7191 Short circuit in brake
chopper IGBT.
Ensure brake resistor is connected and not damaged.
Check the electrical specications of the brake resistor
against the Hardware manual.
Replace brake chopper (if replaceable). After correcting
the cause of the fault, reboot the control unit (using
parameter 96.08 Control board boot) or by cycling power.
BC IGBT excess
temperature
7192 Brake chopper IGBT
temperature has
exceeded internal fault
limit.
Let chopper cool down.
Check for excessive ambient temperature.
Check for cooling fan failure.
Check for obstructions in the air ow.
Check the dimensioning and cooling of the cabinet.
Check resistor overload protection function settings
(parameter group 43 Brake chopper).
Check that braking cycle meets allowed limits.
Check that drive supply AC voltage is not excessive.
Mechanical brake
closing failed
Programmable fault: 44.17
Brake fault function
71A2 Mechanical brake control
fault.
Activated eg. if brake
acknowledgement is not
as expected during brake
closing.
Check mechanical brake connection.
Check mechanical brake settings in parameter group 44
Mechanical brake control.
Check that acknowledgement signal matches actual
status of brake.
Mechanical brake
opening failed
Programmable fault: 44.17
Brake fault function
71A3 Mechanical brake control
fault.
Activated eg. if brake
acknowledgement is not
as expected during brake
opening.
Check mechanical brake connection.
Check mechanical brake settings in parameter group 44
Mechanical brake control.
Check that acknowledgement signal matches actual
status of brake.
Mechanical brake
opening not allowed
Programmable fault: 44.17
Brake fault function
71A5 Open conditions of
mechanical brake cannot
be fullled (for example,
brake has been prevented
from opening by
parameter 44.11 Keep
brake closed).
Check mechanical brake settings in parameter group 44
Mechanical brake control (especially 44.11 Keep brake
closed).
Check that acknowledgement signal (if used) matches
actual status of brake.
Motor fan
Programmable fault:
35.106 DOL starter event type
71B1 No feedback received
from external fan.
Check external fan (or other equipment controlled) by the
logic.
Check settings of parameters 35.100…35.106.
Motor speed
feedback
Programmable fault: 90.45
Motor feedback fault
7301 No motor speed feedback
received.
See A7B0 Motor speed feedback.