ABB ACS880 - Page 685

What to doCause
Event name /
Aux. code
Code
(hex)
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
See user documentation of fieldbus
interface.
between PLC and fieldbus adapter
module B is lost.
Check settings of parameter group 50
Fieldbus adapter (FBA).
Check cable connections.
Check if communication master is able
to communicate.
Check status of controller. See user
documentation of controller.
DDCS (fiber optic) communication
between drive and external controller
is lost.
DDCS
controller
comm loss
A7CA
Check settings of parameter group 60
DDCS communication.
Check cable connections. If necessary,
replace cables.
Check the auxiliary code. The code
indicates which node address (defined
Master/follower communication is
lost.
M/F comm
loss
A7CB
by parameter 60.2 in each drive) on
the master/follower link is affected.
Check settings of parameter group 60
DDCS communication.
On the FDCO module (if present),
check that the DDCS link switch is not
set to 0 (OFF).
Check cable connections. If necessary,
replace cables.
Check the status of the fieldbus
master (online/offline/error etc.).
Communication break in embedded
fieldbus (EFB) communication.
EFB comm
loss
A7CE
Check cable connections to the XD2D
connector on the control unit.
Check the auxiliary code (format XXYY
ZZZZ). “XX” specifies the number of
Encoder error.EncoderA7E1
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).
Check the conductor order at both
ends of the encoder cable.
Cable fault.0001
Check the groundings of the
encoder cable.
Fault tracing 685