ABB ACS560 Firmware Manual page 431

Fault / Aux. code
Code
code visible only on
(hex)
assistant control panel
and drive composer)
7100 Excitation current
7121 Motor stall
Programmable fault:
Stall function
7122 Motor overload
7181 Brake resistor
7183 BR excess
temperature
7184 Brake resistor wiring
7191 BC short circuit
7192 BC IGBT excess
temperature
71A3 Mech brake opening
failed
(aux
Cause
Excitation current feedback
low or missing
Motor is operating in stall
region because of e.g.
31.24
excessive load or insufficient
motor power.
Motor current is too high.
Brake resistor broken or not
connected.
Brake resistor temperature has
exceeded fault limit defined by
parameter 43.11 Brake resistor
fault limit.
Brake resistor short circuit or
brake chopper control fault.
Short circuit in brake chopper
IGBT.
Brake chopper IGBT
temperature has exceeded
internal fault limit.
Mechanical brake control is
faulty. Brake open
acknowledgment is not
matching the actual status.
Fault tracing 431
What to do
Contact your local ABB representative.
Check motor load and drive ratings.
Check fault function parameters.
Check for overloaded motor
Adjust the parameters used for the motor
overload function. (35.51...35.53, 35.55,
35.56)
Check that a brake resistor has been
connected.
Check the condition of the brake resistor.
Check the dimensioning of the brake
resistor.
Stop drive. Let resistor cool down.
Check resistor overload protection
function settings (parameter group
Brake chopper).
Check fault limit setting, parameter
Brake resistor fault limit.
Check that braking cycle meets allowed
limits.
Check brake chopper and brake resistor
connection.
Ensure brake resistor is not damaged.
Ensure brake resistor is connected and
not damaged.
Check the electrical specifications of the
brake resistor against chapter Resistor
braking in the Hardware manual of the
drive.
Replace brake chopper (if replaceable).
Let chopper cool down.
Check for excessive ambient
temperature.
Check for cooling fan failure.
Check for obstructions in the air flow.
Check resistor overload protection
function settings (parameter group
Brake chopper).
Check that braking cycle meets allowed
limits.
Check that drive supply AC voltage is not
excessive.
Check connections, brake settings and
brake acknowledgment signal.
43
43.11
43