What to do
Cause
Event name /
Aux. code
Code
(hex)
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.
One or more of the resistor data
settings (parameters
…
) is
incorrect.
Brake resistor data has not been given.
BR data
A794
The parameter is specified by the
auxiliary code.
Check value of
.
Resistance value too low.
0000 0001
Check value of
Thermal time constant not given.
0000 0002
Check value of
Maximum continuous power not
given.
0000 0003
Check the auxiliary code (format XXYY
ZZZZ). “XX” specifies the number of
Speed feedback configuration has
changed.
Speed
feedback
configuration
A797
the encoder interface module (01:
/
, 02:
, “YY”
specifies the encoder (01:
, 02:
680 Fault tracing
Summary of Contents for ACS880 Series
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