ABB ACS480 Troubleshooting Manual page 21

20 Fault tracing
Code
Fault / Aux. code
(hex)
7310 Overspeed
73B0 Emergency ramp
failed
73F0 Overfrequency
7510 FBA A communication
Programmable fault:
FBA A comm loss func
8001 ULC underload fault
8002 ULC overload fault
80A0 AI supervision
Programmable fault:
12.03 AI supervision
function
80B0 Signal supervision 1
(Editable message text)
Programmable fault:
32.06 Supervision 1 action
Cause
Motor is turning faster than
highest allowed speed due to
incorrectly set
minimum/maximum speed,
insufficient braking torque or
changes in load when using
torque reference.
Emergency stop did not finish
within expected time.
Maximum allowed output
frequency exceeded.
0xFA Motor is turning faster than the
highest allowed frequency due
to incorrectly set
minimum/maximum frequency
or the motor rushes because of
too high supply voltage or
incorrect supply voltage
selection in parameter
Supply voltage.
Other -
Cyclical communication
between drive and fieldbus
50.02
adapter module A or between
PLC and fieldbus adapter
module A is lost.
User load curve: Signal has
been too long under the
underload curve.
User load curve: Signal has
been too long over the
overload curve.
An analog signal is outside the
limits specified for the analog
input.
0001 AI1LessMIN
0002 AI1GreaterMAX
0003 AI2LessMIN.
0004 AI2GreaterMAX
Fault generated by the signal
supervision function 1.
What to do
Check minimum/maximum speed
settings, parameters
speed and 30.12 Maximum
Check adequacy of motor braking torque.
Check need for brake chopper and
resistor(s).
Check the predefined ramp times
(23.11...23.15
mode Off3).
Check the auxiliary code.
Check minimum/maximum frequency
settings, parameters
frequency and
frequency.
Check used supply voltage and voltage
selection parameter
voltage.
95.01
Contact your local ABB representative,
quoting the auxiliary code.
Check status of fieldbus communication.
See user documentation of fieldbus
interface.
Check settings of parameter groups
Fieldbus adapter
settings, 52 FBA A data in
data out.
Check cable connections.
Check if communication master is able to
communicate.
See parameter
actions.
See parameter
actions.
Check signal level at the analog input.
Check the auxiliary code.
Check the wiring connected to the input.
Check the minimum and maximum limits
of the input in parameter group
Standard AI.
Check the source of the fault (parameter
32.07 Supervision 1
30.11 Minimum
speed.
for mode Off1, 23.23 for
30.13 Minimum
30.14 Maximum
95.01 Supply
50
(FBA), 51 FBA A
and 53 FBA A
37.04 ULC underload
37.03 ULC overload
12
signal).