ABB ACS880 Firmware Manual page 684

684 Fault tracing
Code Event name /
(hex) Aux. code
A7AB Extension I/O
configuration
failure
A7B0 Motor speed
feedback
0001
0002
0003
0004
A7B1 Load speed
feedback
0001
0002
0003
0004
Cause
The I/O extension module types and
locations specified by parameters do
not match the detected configuration.
No motor speed feedback is received.
Motor gear definition invalid or
outside limits.
Encoder not configured.
Encoder stopped working.
Encoder drift detected.
No load speed feedback is received.
Load gear definition invalid or
outside limits.
Feed constant definition invalid or
outside limits.
Encoder stopped working.
Encoder drift detected.
What to do
Note: Control board reboot (either by
cycling the power or through
parameter 96.8 Control board
is required to validate any changes in
the hardware settings.
Check the type and location settings
of the modules (parameters 14.1, 14.2,
15.1, 15.2, 16.1 and 16.2).
Check that the modules are properly
installed.
Check the auxiliary code. See Drive
application programming manual (IEC
61131-3) (3AUA0000127808 [English]).
Check the auxiliary code (format XXYY
ZZZZ). "XX" specifies the number of
the encoder interface module (01:
91.11/91.12, 02: 91.13/91.14), "YY"
specifies the encoder (01:
1 configuration, 02: 93 Encoder 2
configuration). "ZZZZ" indicates the
problem (see actions for each code
below).
Check motor gear settings
and 90.44).
Check encoder settings
1 configuration or
configuration).
Use parameter 91.10 Encoder
parameter refresh) to validate any
changes in the settings.
Check encoder status.
Check for slippage between encoder
and motor.
Check the auxiliary code (format XXYY
ZZZZ). "XX" specifies the number of
the encoder interface module (01:
91.11/91.12, 02: 91.13/91.14), "YY"
specifies the encoder (01:
1 configuration, 02: 93 Encoder 2
configuration). "ZZZZ" indicates the
problem (see actions for each code
below).
Check load gear settings
90.54).
Check feed constant settings
and 90.64).
Check encoder status.
Check for slippage between encoder
and motor.
boot)
92 Encoder
(90.43
(92 Encoder
93 Encoder 2
92 Encoder
(90.53 and
(90.63