ABB ACS880 - Page 571

What to doCause
Event name /
Aux. code
Code
(hex)
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
No motor speed feedback is received.Motor speed
feedback
A7B0
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).
Check motor gear settings (90.43 and
90.44).
Motor gear definition invalid or outside
limits.
0001
Check encoder settings (92 Encoder
1 configuration or 93 Encoder 2
configuration).
Encoder not configured.0002
Use parameter 91.10 Encoder
parameter refresh) to validate any
changes in the settings.
Check encoder status.Encoder stopped working.0003
Check for slippage between encoder
and motor.
Encoder drift detected.0004
Check the auxiliary code (format XXYY
ZZZZ). “XX” specifies the number of the
No load speed feedback is received.Load speed
feedback
A7B1
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).
Check load gear settings (90.53 and
90.54).
Load gear definition invalid or outside
limits.
0001
Check feed constant settings (90.63
and 90.64).
Feed constant definition invalid or
outside limits.
0002
Check encoder status.Encoder stopped working.0003
Check for slippage between encoder
and motor.
Encoder drift detected.0004
Check status of fieldbus communication.Cyclical communication between drive
and fieldbus adapter module A or
FBA A
communication
A7C1
See user documentation of fieldbus
interface.between PLC and fieldbus adapter
module A is lost.
Check settings of parameter groups 50
Fieldbus adapter (FBA), 51 FBA A
settings, 52 FBA A data in and 53 FBA
A data out.
Check cable connections.
Check if communication master is able
to communicate.
Check status of fieldbus communication.Cyclical communication between drive
and fieldbus adapter module B or
FBA B
communication
A7C2
Fault tracing 571