20 / 32 Operating instructions Typ 2200
Betriebsanleitung Typ 2200
4.2 Controllers of types 6.21/6.22/6.23 / 6.24
Inputs 6.21/6.22/6.23 and 6.24
Pressure switch "DP reached, backflushing filter" 75 %
Pressure switch "DP too high, backflushing filter" 100 %
Outputs 6.21/6.22/6.23 and 6.24
Flushing valve
Potential-free contacts and messages 6.21/6.22/6.23 and 6.24
Functional description 6.21/6.22/6.23 and 6.24
See the operating instructions for the filter's function.
Flushing is triggered by:
Special attributes
• All alarms are displayed and signalled and saved via potential-free contacts.
• If the controller is in parameterisation mode, flushing cannot be triggered
manually.
• If the "Controller type" parameter is changed, the functions are re-started.
1) "Control voltage monitoring" alarm Output A1, A2, A3
2) "Maximum DP reached" alarm Output A4, A5, A6
1) Key F
2) The forced flushing time elapsing
3) Pressure switch "DP reached, backflushing filter"
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