DALUM CO2 - Troubleshooting; Alarms and Warnings

CO2-Recovery Plant 41 EN/2020
8. Troubleshooting
When troubleshooting on the DALUM CO2 Recovery Unit help can be found in this section. If
problems cannot be fixed by the brewery’s dedicated personnel do not hesitate to contact
Dalum Beverage Equipment for support. Alarms are reset by activating STOP/START.
8.1 Alarms and warnings
MACHINE STATE
State Explanation
RUNNIG
After pressing START, The CO2 Unit is running and adjusting production based on
CO2 inlet pressure
HELD at Warnings
The Unit is waiting for the right condition to run and will start by it self when the
conditions are fulfilled. The Unit can be set in HELD manually.
STOPPED at Alarms
The CO2 Unit is stopped due to an alarm and can be reset by pressing
STOP/START on the main menu. If the same alarm occurs, please solve the
problem using the guide below
STOPPED CRITICAL
This alarm type terminates the power to the 240V Relays and VFD
Index
Alarm
Possible causes
Possible solutions
1 Warning
03PT60 -
CO2
Pressure
below 0.2 bar
Activated when the
inlet pressure is below
0,15 bar for 30 sec.
Self-resets when the
inlet pressure exceeds
0,25 bar.
This warning comes typically at the
end of fermentation when the gas
flow cease. However, could occur if
there is a constraint in the feed gas.
5 Alarm
Compressor
Fault
Compressor Motor
Current exceeds limit,
due to high load e.g.,
pressure or blockage.
Force compressor ON to check for
mechanical blockage or water in
compressor. Drain condensate
separators to check for water in
compressor. Restart to check for
abnormal pressure at any stage.
Follow the daily check list and trouble
shooting guide if pressures abnormal.
10 Alarm
05TE40,
Temperature
too High
Temperature of
Dehydrator 502
exceeds 300 C for 5
minutes, caused by
abnormal heating or
sensor system failure.
Check history to see if 502
temperatures rose constant or is the
502-temperature sensor signal
unstable, then Sensor or PLC failure.
Check if heat is constantly on, then
the PLC heating element relay is
defect.
15 Alarm
05TE41,
Temperature
too High
Temperature of
Dehydrator 501
exceeds 300 C for 5
minutes, caused by
Check history to see if 502
temperatures rose constant or is the
502-temperature sensor signal
unstable, then Sensor or PLC failure.