76
ACH580 Installation, Operation and Maintenance Manual
ACH580-01 Installation
73B0
Emergency ramp failed
Emergency stop did not
finish within expected
time.
Check the settings of parameters
31.32 Emergency ramp supervision
and
31.33 Emergency ramp
supervision delay
.
Check the predefined ramp times
(
23.11…23.15
for mode Off1,
23.23
for mode Off3).
7510
FBA A communication
Programmable fault:
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.
7580
INU-LSU comm loss
Programmable fault:
60.79
INU-LSU comm loss
function
DDCS communication
between the inverter
unit and the supply unit
is lost.
Check status of the supply unit
(parameter group
06 Control and
status words
).
Check settings of parameter group
60 DDCS communication
. Check the
corresponding settings in the control
program of the supply unit.
Check cable connections. If
necessary, replace cables.
7583
Line side unit faulted
The supply unit
connected to the
inverter unit has
generated a fault.
The auxiliary code specifies the
original fault code in the supply unit
control program. See chapter
Fault
tracing
in the
ACH580 HVAC control
program firmware manual,
publication
number
3AXD50000027537
.
7584
LSU charge failed
The supply unit was not
ready (ie. the main
contactor/breaker could
not be closed) within
expected time.
Check settings of parameter
94.10
LSU max charging time
. Check that
parameter
60.71 INU-LSU
communication port
is set to
DDCS
via BC
.
Check that the supply unit is enabled,
allowed to start, and can be controlled
by the inverter unit (eg. not in local
control mode).
8001
ULC underload fault
User load curve: Signal
has been too long
under the underload
curve.
See parameter
37.04 ULC underload
actions
.
8002
ULC overload fault
User load curve: Signal
has been too long over
the overload curve.
See parameter
37.03 ULC overload
actions
.
Code
(hex)
Fault / Aux. code
Cause
What to do
