What to doCause
Event name /
Aux. code
Code
(hex)
Check the auxiliary code (format XXYY
00ZZ). “XX” and “YY” specify the two
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.
The current/voltage hardware setting of
an analog input does not correspond to
parameter settings.
AI
parametrization
A6E5
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 boot) 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).
User load curve configuration error.ULC
configuration
A6E6
Check that each speed point
(parameters 37.11…37.15) has a
higher value than the previous point.
Speed points inconsistent.0000
Check that each frequency point
(37.16…37.20) has a higher value than
the previous point.
Frequency points inconsistent.0001
Check that each overload point
(37.31…37.35) has a higher value than
Underload point above overload point.0002
the corresponding underload point
(37.21…37.25).
Check that each overload point
(37.31…37.35) has a higher value than
Overload point below underload point.0003
the corresponding underload point
(37.21…37.25).
Check motor load and drive ratings.Motor is operating in stall region because
of e.g. excessive load or insufficient
motor power.
Motor stallA780
Check fault function parameters.
Check external fan (or other equipment
controlled) by the logic.
No feedback received from external fan.Motor fanA781
Check settings of parameters
35.100…35.106.
566 Fault tracing