ABB ACQ580 - Page 349

Fault tracing 345
A780 Motor stall
Programmable warning:
31.24 Stall function
Motor is operating in stall
region because of e.g.
excessive load or insufficient
motor power.
Check motor load and drive ratings.
Check fault function parameters.
A7AB Extension I/O
configuration failure
Installed CMOD module is not
the same as configured.
Check that the installed module (shown
by parameter 15.02 Detected extension
module) is the same as selected by
parameter 15.01 Extension module
type.
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.
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
EIA-485/X5 terminals 29, 30 and 31 on
the control unit.
A7EE Panel loss
Programmable warning:
49.05 Communication
loss action
Control panel or PC tool
selected as active control
location for drive has ceased
communicating.
Check PC tool or control panel
connection.
Check control panel connector.
Check mounting platform if being used.
Disconnect and reconnect the control
panel.
A88F Cooling fan Maintenance timer limit
exceeded.
Consider changing the cooling fan.
Parameter 05.04 Fan on-time counter
shows the running time of the cooling
fan.
A8A0 AI supervision
Programmable warning:
12.03 AI supervision
function
An analog signal is outside the
limits specified for the analog
input.
Check signal level at the analog input.
Check the wiring connected to the
input.
Check the minimum and maximum
limits of the input in parameter group 12
Standard AI.
A8A1 RO life warning The relay has changed states
more than the recommended
number of times.
Change the control board or stop using
the relay output.
0001 Relay output 1 Change the control board or stop using
relay output 1.
0002 Relay output 2 Change the control board or stop using
relay output 2.
0003 Relay output 3 Change the control board or stop using
relay output 3.
Code
(hex)
Warning / Aux. code Cause What to do