What to do
Cause
Event name /
Aux. code
Code
(hex)
Note: Control board reboot (either by
cycling the power or through
parameter
)
is required to validate any changes in
the hardware settings.
Check motor load and drive ratings.
Motor is operating in stall region
because of e.g. excessive load or
insufficient motor power.
Motor stall
A780
Check fault function parameters.
Check external fan (or other
equipment controlled) by the logic.
No feedback received from external
fan.
Motor fan
A781
Check settings of parameters
…
FEN
temperature
A782
•
Check that parameter
/
•
Error in temperature
measurement when temperature
sensor (KTY or PTC) connected
setting
to encoder interface FEN-xx is
used.
corresponds to actual encoder
interface installation.
Check the settings of parameters
and
. Check that the
•
Error in temperature
measurement when KTY sensor
corresponding module is
connected to encoder interface
FEN-01 is used.
activated in parameters
. Use parameter
to
validate any changes in the
settings.
•
FEN-01 does not support
temperature measurement with
KTY sensor. Use PTC sensor or
other encoder interface module.
Check for overloaded motor.
Motor current is too high.
Motor
overload
A783
Adjust the parameters used for the
motor overload function (
)
and
…
.
Check that a brake resistor has been
connected.
Brake resistor broken or not
connected.
Brake resistor
A791
Check the condition of the brake
resistor.
Stop drive. Let resistor cool down.
Brake resistor temperature has
exceeded warning limit defined by
BR excess
temperature
A793
Check resistor overload protection
function settings (parameter group
).
parameter
Check warning limit setting,
parameter
.
Check that the resistor has been
dimensioned correctly.
Check that braking cycle meets
allowed limits.
578 Fault tracing
Summary of Contents for ACS880 N5700 Series
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