Firmware Manual

484 Fault tracing
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.
A7CB MF comm loss
Programmable warning:
60.09 M/F comm loss
function
Master/follower
communication is lost.
Check the auxiliary code. The code
indicates which node address (defined by
parameter 60.02 in each drive) on the
master/follower link is affected.
Check settings of parameter group 60
DDCS communication.
Check cable connections. If necessary,
replace cables.
A7CE EFB comm loss
Programmable warning:
58.14 Communication loss
action
Communication break in
embedded fieldbus (EFB)
communication.
Check the status of the fieldbus master
(online/offline/error etc.).
Check cable connections to the XD2D
connector on the control unit.
A7E1 Encoder
Programmable warning:
90.45 Motor feedback fault
Encoder error. 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 Cable fault Check the conductor order at both ends
of the encoder cable.
Check the groundings of the encoder
cable.
If the encoder was working previously,
check the encoder, encoder cable and
encoder interface module for damage.
See also parameter 92.21 Encoder cable
fault mode.
0002 No encoder signal Check the condition of the encoder.
0003 Overspeed Contact your local ABB representative.
0004 Overfrequency Contact your local ABB representative.
0005 Resolver ID run failed Contact your local ABB representative.
0006 Resolver overcurrent fault Contact your local ABB representative.
0007 Speed scaling error Contact your local ABB representative.
0008 Absolute encoder
communication error
Contact your local ABB representative.
Code
(hex)
Warning Cause What to do