Fault tracing 419
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.
Replace the drive cooling fan.
Parameter 05.04 Fan on-time counter
shows the running time of the cooling
fan.
A8A0 AI supervision Analog signal is beyond limits. Check the signal level, input wiring, and
the defined limits.
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.
A8A2 RO toggle warning The relay output is changing
states faster than
recommended, eg. if a fast
changing frequency signal is
connected to it. The relay
lifetime will be exceeded
shortly.
Replace the signal connected to the relay
output source with a less frequently
changing signal.
0001 Relay output 1 Select a different signal with parameter
10.24 RO1 source.
0002 Relay output 2 Select a different signal with parameter
10.27 RO2 source.
Code
(hex)
Warning / Aux. code
(aux code visible only
on assistant control
panel and drive
composer)
Cause What to do
0001 – AI1 less minimum 0003 – AI2 less minimum
0002 – AI1 greater maximum 0004 – AI2 greater maximum
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