ABB ACS860 - Page 356

356 Fault tracing
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.
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.
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), “YY” specifies the encoder
(01: 92 Encoder 1 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.
0007 Speed scaling error Contact your local ABB representative.
000B Encoder reported an internal
error
See the documentation of the encoder.
000C Encoder reported a battery
error
See the documentation of the encoder.
000D Encoder reported overspeed
or decreased resolution due to
overspeed
See the documentation of the encoder.
000E Encoder reported a position
counter error
See the documentation of the encoder.
000F Encoder reported an internal
error
See the documentation of the encoder.
Code
(hex)
Warning Cause What to do