ABB ACS560 Quick Installation And Start-Up Manual page 124

124 Diagnostics
Code Fault / Aux. code
(hex) aux code visible
only on assistant
control panel and
drive composer))
71A5 Mechanical brake
opening not allowed
7100 Excitation current
7121 Motor stall
EN
7122 Motor overload
HI
7181 Brake resistor
7183 BR excess temperat-
ure
7184 Brake resistor wiring
7191 BC short circuit
7192 BC IGBT excess
temp
71A3 Mech brake opening
failed
7310 Overspeed
73B0 Emergency ramp
failed
73F0 Overfrequency
00FA
Other
Cause
Open conditions of mechanical
brake cannot be fulfilled.
Excitation current feedback low
or missing
Motor is operating in stall region.
Motor current is too high.
Brake resistor broken or not
connected.
Brake resistor temperature has
exceeded the limit.
Brake resistor short circuit or
brake chopper control fault.
Short circuit in brake chopper
IGBT.
Brake chopper IGBT temperat-
ure exceeded internal fault limit.
Mechanical brake control is
faulty. Brake open acknowledg-
ment is not matching the actual
status.
Motor is turning faster than
highest allowed speed.
Emergency stop did not finish
within expected time.
Maximum allowed output fre-
quency exceeded.
Motor is turning faster than the
highest allowed frequency due
to incorrectly set minimum/max-
imum frequency or the motor
rushes because of too high sup-
ply voltage or incorrect supply
voltage selection in parameter
95.01 Supply voltage.
-
What to do
Check mechanical brake settings in paramet-
er group 44 Mechanical brake control.
Check that the acknowledgment signal (if
used) matches the actual status of the
brake.
Contact your local ABB representative.
Check motor load, drive ratings and 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 connections and brake resistor dimen-
sioning.
Stop drive. Let resistor cool down. Check
resistor overload protection function settings
and fault limit settings. Check braking cycle
limits.
Check connections.
Check the electrical specifications. Replace
brake chopper.
Let chopper cool down. Check ambient
temperature, cooling fan, air flow, resistor
overload protection function settings, braking
cycle limits and supply voltage.
Check connections, brake settings and
brake acknowledgment signal.
Check the minimum/maximum speed set-
tings, parameters 30.11 Minimum speed
and 30.12 Maximum speed, motor braking
torque, torque control, brake chopper and
resistor(s).
Check predefined ramp times (23.11...23.15
for mode Off1, 23.23 for mode Off3).
Check the auxiliary code.
Check minimum/maximum frequency set-
tings, parameters 30.13 Minimum frequency
and 30.14 Maximum frequency.
Check used supply voltage and voltage se-
lection parameter 95.01 Supply voltage.
Contact your local ABB representative,
quoting the auxiliary code.