ABB ACS880-11 - Page 512

512 Fault tracing
0002 Encoder not configured. Check encoder settings (92 Encoder 1
configuration or 93 Encoder 2
configuration).
Use parameter 91.10 Encoder parameter
refresh) to validate any changes in the
settings.
0003 Encoder stopped working. Check encoder status.
0004 Encoder drift detected. Check for slippage between encoder and
motor.
A7B1 Load speed feedback
Programmable warning:
90.55 Load feedback fault
No load speed feedback is
received.
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: 92 Encoder 1
configuration, 02: 93 Encoder 2
configuration). “ZZZZ” indicates the
problem (see actions for each code
below).
0001 Load gear definition invalid or
outside limits.
Check load gear settings (90.53 and
90.54).
0002 Feed constant definition invalid
or outside limits.
Check feed constant settings (90.63 and
90.64).
0003 Encoder stopped working. Check encoder status.
A7C1 FBA A communication
Programmable warning:
50.02 FBA A comm loss
func
Cyclical communication
between drive and fieldbus
adapter module A or between
PLC and fieldbus adapter
module A is lost.
Check status of fieldbus communication.
See user documentation of fieldbus
interface.
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.
A7C2 FBA B communication
Programmable warning:
50.32 FBA B comm loss
func
Cyclical communication
between drive and fieldbus
adapter module B or between
PLC and fieldbus adapter
module B is lost.
Check status of fieldbus communication.
See user documentation of fieldbus
interface.
Check settings of parameter group 50
Fieldbus adapter (FBA).
Check cable connections.
Check if communication master is able to
communicate.
A7CA DDCS controller
comm loss
Programmable warning:
60.59 DDCS controller
comm loss function
DDCS (fiber optic)
communication between drive
and external controller is lost.
Check status of controller. See user
documentation of controller.
Check settings of parameter group 60
DDCS communication.
Check cable connections. If necessary,
replace cables.
Code
(hex)
Warning Cause What to do