Fidas24: Troubleshooting - ABB EasyLine Series Instructions For Installation Start-Up And Operation

Fidas24: Troubleshooting

Flame does not ignite
Fidas24 in the Fail-safe Status
Air in the combustion gas line
When connecting or replacing the combustion gas bottle, make sure that
no air penetrates into the combustion gas supply line. Air which has
penetrated the combustible gas supply line results in the flame in the
analyzer going out.
The analyzer automatically tries to reignite the flame up to 10 times in a
period of approx. 10 minutes with increased combustion gas pressure
each time. If this is unsuccessful, the analyzer switches to operating
status "Wait for restart". In this case ignition of the flame must be
restarted:
Operation Pump/Standby
Restart
Note: The operating status "Wait for restart" means: Heater on,
Combustion gas valve closed, Instrument air valve open, Housing purge
on.
Combustion air pressure too high

Reduce combustion air pressure (note details in analyzer data sheet).
If a serious fault has occurred in the analyzer module, the analyzer
module is put in the fail-safe mode.
Fail-safe status: heater off, combustion gas valve closed, instrument air
valve closed, housing purging on, zero gas valve open.
The cause of the fault must be determined from the status messages
(see page 122).
There is no option for restart of the analyzer in the Fidas restart
menu; after fault recovery, the gas analyzer must be restarted by
switching off and on again.
Status Messages, Troubleshooting
Fidas Standby
129
Fidas