ABB ACS880 Firmware Manual page 679

Code Event name /
(hex) Aux. code
A6E5 AI
parametrization
A6E6 ULC
configuration
0000
0001
0002
0003
A780 Motor stall
A781 Motor fan
Cause
The current/voltage hardware setting
of an analog input does not
correspond to parameter settings.
User load curve configuration error.
Speed points inconsistent.
Frequency points inconsistent.
Underload point above overload
point.
Overload point below underload
point.
Motor is operating in stall region
because of e.g. excessive load or
insufficient motor power.
No feedback received from external
fan.
Fault tracing 679
What to do
sets of parameters where the source
was connected to (01 = speed
reference chain [22.11, 22.12, 22.15,
22.17], 02 = frequency reference chain
[28.11, 28.12], 03 = torque reference
chain [26.11, 26.12, 26.16], 04 = other
torque-related parameters [26.25,
30.21, 30.22, 44.9], 05 = process PID
control parameters [40.16, 40.17,
40.50, 41.16, 41.17, 41.50]). "ZZ"
indicates the conflicting reference
source (01...0E = index in parameter
group 3, 33 = process PID control, 3D
= motor potentiometer, 65 = AI1, 66 =
AI2, 6F = frequency input).
Check the auxiliary code. The code
identifies the analog input whose
settings are in conflict.
Adjust either the hardware setting (on
the drive control unit) or parameter
12.15/12.25.
Note: Control board reboot (either by
cycling the power or through
parameter 96.8 Control board
is required to validate any changes in
the hardware settings.
Check the auxiliary code (format XXXX
ZZZZ). "ZZZZ" indicates the problem
(see actions for each code below).
Check that each speed point
(parameters 37.11...37.15) has a
higher value than the previous point.
Check that each frequency point
(37.16...37.20) has a higher value
than the previous point.
Check that each overload point
(37.31...37.35) has a higher value
than the corresponding underload
point (37.21...37.25).
Check that each overload point
(37.31...37.35) has a higher value
than the corresponding underload
point (37.21...37.25).
Check motor load and drive ratings.
Check fault function parameters.
Check external fan (or other
equipment controlled) by the logic.
Check settings of parameters
35.100...35.106.
boot)