ABB ACS880 - Page 567

What to doCause
Event name /
Aux. code
Code
(hex)
FEN
temperature
A782
•
Check that parameter 35.11
Temperature 1 source / 35.21
• Error in temperature measurement
when temperature sensor (KTY or
PTC) connected to encoder
interface FEN-xx is used.
Temperature 2 source setting
corresponds to actual encoder
interface installation.
• Error in temperature measurement
when KTY sensor connected to
encoder interface FEN-01 is used.
Check the settings of parameters
91.21 and 91.24. Check that the
corresponding module is activated
in parameters 91.11…91.14. Use
parameter 91.10 Encoder
parameter refresh 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 overloadA783
Adjust the parameters used for the motor
overload function (35.51…35.53) and
35.55…35.56.
Check that a brake resistor has been
connected.
Brake resistor broken or not connected.Brake resistorA791
Check the condition of the brake resistor.
Stop drive. Let resistor cool down.Brake resistor temperature has exceeded
warning limit defined by parameter 43.12
Brake resistor warning limit.
BR excess
temperature
A793
Check resistor overload protection
function settings (parameter group 43
Brake chopper).
Check warning limit setting, parameter
43.12 Brake resistor warning limit.
Check that the resistor has been
dimensioned correctly.
Check that braking cycle meets allowed
limits.
One or more of the resistor data settings
(parameters 43.8…43.10) is incorrect.
Brake resistor data has not been given.BR dataA794
The parameter is specified by the
auxiliary code.
Check value of 43.10.
Resistance value too low.0000 0001
Check value of 43.8.
Thermal time constant not given.0000 0002
Check value of 43.9.
Maximum continuous power not given.0000 0003
Check the auxiliary code (format XXYY
ZZZZ). “XX” specifies the number of the
Speed feedback configuration has
changed.
Speed
feedback
configuration
A797
encoder interface module (01:
91.11/91.12, 02: 91.13/91.14, “YY”
specifies the encoder (01: 92 Encoder 1
configuration, 02: 93 Encoder 2
configuration). “ZZZZ” indicates the
problem (see actions for each code
below).
Fault tracing 567