Fault tracing 351
A6A4 Motor nominal value The motor parameters are set
incorrectly.
Check the settings of the motor
configuration parameters in group 99.
The drive is not dimensioned
correctly.
Check that the drive is sized correctly for
the motor.
A6A5 No motor data Parameters in group 99 have
not been set.
Check that all the required parameters in
group 99 have been set.
Note: It is normal for this warning to
appear during the start-up and continue
until the motor data is entered.
A6A6 Voltage category
unselected
The voltage category has not
been defined.
Set voltage category in parameter 95.01
Supply voltage.
A6B0 User lock is open The user lock is open, ie. user
lock configuration parameters
96.100…96.102 are visible.
Close the user lock by entering an invalid
pass code in parameter 96.02
Pass
code. See section User lock (page 100).
A6D1 FBA A parameter
conflict
The drive does not have a
functionality requested by a
PLC, or requested functionality
has not been activated.
Check PLC programming.
Check settings of parameter groups 50
Fieldbus adapter (FBA).
A6E5 AI parametrization The current/voltage hardware
setting of an analog input does
not correspond to parameter
settings.
Check the event log for an 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
96.08 Control board boot) is required to
validate any changes in the hardware
settings.
A7A1 Mechanical brake
closing failed
Mechanical brake control
warning.
Check mechanical brake connection.
Check mechanical brake settings in
parameter group 44 Mechanical brake
control.
Check that acknowledgment signal
matches the actual status of the brake.
A7A5 Mechanical brake
opening not allowed
Open conditions of mechanical
brake cannot be fulfilled (e.g.,
brake has been prevented
from opening by parameter
44.11)
Check mechanical brake settings in
parameter group 44 Mechanical brake
control (especially 44.11).
Check that the acknowledgment signal (if
used) matches the actual status of the
brake.
A7B0 Motor speed feedback
/ 4, 3FC, 3FD
Motor speed feedback has
failed and drive continues
operation with open loop
control.
Check the settings of the parameters in
groups 90 Feedback selection, 91
Encoder adapter settings and 92
Encoder 1 configuration.
Check encoder installation.
A780 Motor stall
Programmable warning:
31.24 Stall function
Motor is operating in stall
region because of e.g.
excessive load or insufficient
motor power.
Check motor load and drive ratings.
Check fault function parameters.
A791 Brake resistor Brake resistor broken or not
connected.
Check that a brake resistor has been
connected.
Check the condition of the brake resistor.
Code
(hex)
Warning / Aux. code Cause What to do
To Next Page
Loading...
