ABB ACQ580 Firmware Manual page 365

Code
Fault / Aux. code
(hex)
D406 Maximum flow
protection
Programmable fault:
Maximum flow protection
D407 Minimum flow
protection
Programmable fault:
Minimum flow protection
D408 Outlet minimum
pressure
Programmable fault:
Outlet minimum pressure
protection
D409 Outlet maximum
pressure
Programmable fault:
Outlet maximum pressure
protection
D40A Inlet minimum
pressure
Programmable fault:
Inlet minimum pressure
protection
D50B Pipe fill-timeout
Programmable fault:
Soft pipe fill supervision
0xD401 Max cleaning fault
Programmable fault:
Cleaning count fault
0xD402 High level
Programmable fault:
LC high level action
Cause
Actual flow is exceeded the
defined fault level.
80.17
Actual flow is below the
defined fault level.
80.18
The measured outlet pressure
is below the defined fault limit.
82.30
The measured outlet pressure
is above the defined fault limit.
82.35
The measured inlet pressure is
below the defined fault level.
82.40
Soft pipe fill has reached
timeout limit. The PID output is
82.25
not reached the setpoint after
reference ramping is ended
and the timeout limit is
elapsed.
The maximum number of
cleanings are reached in the
83.35
defined time. The pump
cleaning is unable to clean the
pump and hence, manual
cleaning is required.
Water level is reached the high
level limit. Level control is
76.93
unable to control the level for
the following reasons:
• running out of pumping
capacity or
• analog feedback sensor
failure.
Fault tracing 361
What to do
Check the system for leakages.
Check flow protection settings in
parameters 80.15 Maximum flow
80.17 Maximum flow protection
80.19 Flow check delay.
Check that the inlet and outlet valves
are open.
Check flow protection settings in
parameters 80.16 Minimum
80.18 Minimum flow protection
80.19 Flow check delay.
Check the pump outlet for leakages.
Check the configuration of outlet
pressure protection.
See parameter 82.30 Outlet minimum
pressure protection and
minimum pressure fault
Check the pump outlet for blockages
or closed valve.
Check the configuration of outlet
pressure protection.
See parameters 82.35 Outlet
maximum pressure protection
82.38 Outlet maximum pressure fault
level.
Check the pump inlet for blockages or
closed valve.
Check the configuration of inlet
pressure protection.
See parameters 82.40 Inlet minimum
pressure protection and
minimum pressure fault
Check the pipe for possible leakage.
See parameter 82.25 Soft pipe fill
supervision and 82.26 Time-out
Check the pump for blockages.
Clean the pump manually if needed.
Check parameters 83.35 Cleaning
count fault to 83.37 Maximum
cleaning count.
Check the analog level sensor.
Check that all pumps are operating
normally.
Check parameters 76.91 LC high
level switch and 76.93 LC high level
action.
,
and
flow,
and
82.32 Outlet
level.
and
82.42 Inlet
level.
limit.