ABB ACS880 - Page 668

What to doCause
Event name /
Aux. code
Code
(hex)
Check the source signal selected by
parameter 44.12 Brake close request.
Brake close request or from an FSO-xx
safety functions module) against a
Check the safety circuits connected
to the FSO-xx safety functions module.
modulating drive for longer than 5
seconds.
Check external fan (or other
equipment controlled) by the logic.
No feedback received from external
fan.
Motor fan71B1
Check settings of parameters
35.100…35.106.
See A7B0 Motor speed
feedback (page 684).
No motor speed feedback received.Motor speed
feedback
7301
Overspeed7310
• Check minimum/maximum
speed settings, parameters 30.11
• Motor is turning faster than
highest allowed speed due to
incorrectly set Minimum speed, 30.12 Maximum
minimum/maximum speed, speed and 31.30 Overspeed trip
margin.insufficient braking torque or
Check adequacy of motor braking
torque.
changes in load when using
torque reference.
Check applicability of torque
control.
• Incorrect estimated speed.
Check need for brake chopper
and resistor(s).
• Check the status of motor
current measurement.
Perform a Normal, Advanced or
Advanced Standstill ID run
instead of, for example, a
Reduced or Standstill.
See parameter 99.13 ID run
requested (page 624).
Contact your local ABB representative.Internal fault.Encoder
internal
7380
See A7E1 Encoder (page 685).Encoder feedback fault.Encoder7381
See A797 Speed feedback
configuration (page 680).
Speed feedback configuration
incorrect.
Speed fbk
configuration
73A0
Check the auxiliary code (format XXYY
ZZZZ). “XX” specifies the number of
No load position feedback received.Load position
feedback
73A1
the encoder interface module (01:
91.11/91.12, 02: 91.13/91.14), “YY”
specifies the encoder (01: 92 Encoder
1 configuration, 02: 93 Encoder 2
configuration). “ZZZZ” indicates the
problem (see actions for each code
below).
Check encoder status.Encoder stopped working.0001
Check feed constant settings (90.63
and 90.64).
Feed constant definition invalid or
outside limits.
0002
Check motor/load gear settings
(90.61 and 90.62).
Motor/load gear definition invalid
or outside limits.
0003
668 Fault tracing