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F i l t e r C o n t r o l F S - 2 1
FS-21.doc | Status 2015 - 02 - 09
digital Inputs
back: FKT
scrolling: UP/DOWN
Choosing: ENT
Function
IN1 – KL 24
1
8
Inputs
Using the parameterisation - software it is possible to select whether the input signal should
be triggered according to the closed-circuit or open-circuit principle.
Closed-circuit principle:
If the contact connected to this input is closed, the signal is not evaluated. An evaluation
occurs when the contact opens.
Open-circuit principle:
If the contact connected to this input is open, the signal is not evaluated. An evaluation
occurs when the contact closes.
Various functions can be assigned to the inputs.
The following functions are available for selection:
No.
Function
Description
0
No function
No function is assigned to the input.
1
Start regeneration
(unconditional)
If this signal is received on the relevant input, a regeneration is
triggered immediately regardless of whether other release
conditions are fulfilled. This function corresponds to a regene-
ration release initiated manually.
2
Start regeneration
(external signal)
This function causes a regeneration to be started by means of an
external signal (e.g. quality measuring device). Other regenera-
tion conditions (e.g. quantity or time) are not taken into account.
9
Enable regeneration
release
If an input has been assigned this function and the FS-21 is
running in two filter operation with half-duplex mode, regeneration
of the filter to be regenerated is only started when the regene-
ration release is issued via this input.
255
Water meter
contact (E4)
If a water meter contact is required for the quantity - related re-
lease, this function must be assigned to input
E4
.
Note:
Inputs which are not used should be set to ‘No function’.
8
