ABB ACS880 Firmware Manual page 526

526 Fault tracing
Code
Fault
(hex)
7310 Overspeed
7380 Encoder internal
7381 Encoder
Programmable fault:
Motor feedback fault
73A0 Speed feedback
configuration
73A1 Load feedback
Programmable fault:
Load feedback fault
73B0 Emergency ramp
failed
ghv Vertriebs-GmbH | Am Schammacher Feld 47 | 85567 Grafing | Telefon + 49 80 92 81 89 0 | info@ghv.de | www.ghv.de
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.
Incorrect estimated speed.
Internal fault.
Encoder feedback fault.
90.45
Speed feedback configuration
incorrect.
No load feedback received.
90.55
0001 Load gear definition invalid or
outside limits.
0002 Feed constant definition invalid
or outside limits.
0003 Motor/load gear definition
invalid or outside limits.
0004 Encoder not configured.
0005 Encoder stopped working.
Emergency stop did not finish
within expected time.
What to do
Check minimum/maximum speed
settings, parameters 30.11 Minimum
speed, 30.12 Maximum speed
Overspeed trip margin.
Check adequacy of motor braking torque.
Check applicability of torque control.
Check need for brake chopper and
resistor(s).
Check the status of motor current
measurement.
Perform a Normal, Advanced
Advanced Standstill ID run instead of, for
example, a Reduced or Standstill
See parameter 99.13 ID run requested
(page 433).
Contact your local ABB representative.
See A7E1 Encoder (page 506).
See A797 Speed feedback configuration
(page 502).
Check the auxiliary code (format XXYY
ZZZZ). "XX" specifies the number of the
encoder interface module (01:
91.11/91.12, 02: 91.13/91.14), "YY"
specifies the encoder (01:
configuration, 02: 93 Encoder 2
configuration). "ZZZZ" indicates the
problem (see actions for each code
below).
Check load gear settings (90.53
90.54).
Check feed constant settings
90.64).
Check motor/load gear settings
and 90.62).
Check encoder settings (92 Encoder 1
configuration or 93 Encoder 2
configuration).
Use parameter 91.10 Encoder parameter
refresh) to validate any changes in the
settings.
Check encoder status.
Check the settings of parameters
Emergency ramp supervision
Emergency ramp supervision
Check the predefined ramp times
(23.11...23.19 for mode Off1,
mode Off3).
and 31.30
or
ID run.
92 Encoder 1
and
(90.63 and
(90.61
31.32
and 31.33
delay.
23.23 for