22
JUDO PROFIMAT-PLUS
Operation
5.9
Potential-free input
Filters with potential-free signalling relay
have an additional input (potential-free
input) and an additional DIP-switch S2 (see
chapter “Connecting diagram for filter
control with potential-free relays”). This
input can be used for the filter control (see
tab. 2).
The chapter “Notes on special dangers” and
chapter “Installation” have imperatively to be
observed!
The power supply has to be
unplugged from the socket for
accomplishment of the electrical
installation and for the DIP-switch
setting!
Function
DIP-switch
S2
Specification
External
flush start
up
Starting of the flushing operation:
By closing a switch contact (brown and red core) connected
to the potential-free input.
External
flush stop
If the switch contact at the potential-free input (brown and
red core) is closed the filter cannot effect a flushing.
If the backwashing interval time has expired the flushing is
carried out as soon as the switch contact of the potential-
free input is opened.
Semi-
automatic
Relay 2 closes after the backwashing interval having
expired or after pressure exceed occurring at the differential
pressure sensor and thus displays the call to backwash.
Simultaneously the yellow LED blinks: “Flushing”.
The flushing can only be started by means of the manual
button or a switch contact connected to the potential-free
input.
Not allowed.
Continuous sound signal till the switch is adjusted.
Tab. 2:
1 2
ON
1
2
ON
1 2
ON
1 2
ON
