Installation and operating instructions: JUDO JRSF automatic backwashing protection filter JRSF-ATP DN 125 - 200 (time and differential pressure controlled)
All rights reserved.
JUDO Wasseraufbereitung GmbH
© JUDO Wasseraufbereitung GmbH
Postfach 380
D-71351 Winnenden
Translation into foreign languages and reproduction, even in excerpt form, is only permitted with special
approval.
Tel. +49 (0)7195-692-0
Fax +49 (0)7195-692-188
Revision level: 24.05.2017
E-mail: [email protected]
judo.eu
24
Inputs:
Terminal:
Function:
Assignment:
PD / +
Differential pressure
Differential pressure gauge
EX / +
Ext. Backwashing Start
Ext. NOC (e.g. from BMS)
SP / +
Ext. Backwashing disable
Ext. NOC (e.g. from BMS)
KS / +
End cascade
C6 / S6 from last control unit (only with cascade operation)
RS / +
Spare
–
Outputs:
Terminal:
Function:
Assignment:
1N / MV / PE
Solenoid valve actuation
Solenoid valve
C3 / S3
Signal solenoid valve open
E.g. site building management system
C4 / S4
Backwashing message
E.g. site building management system
C5 / S5 - C5 / Ö5 Operation message - fault
E.g. site building management system
C6 / S6
Cascade output
EX / + from next control unit (only with cascade operation)
4.3.1
Cascade
Attention
If multiple JUDO JRSF automatic backwashing protection filters are operated in cascade,
check the setting of the DIP switches on the master control unit!
The DIP switches must only be switched in a zero-volts state!
The voltage supply of the control units, connections of the solenoid valves and linear
drives, plus, as necessary, fault indication taps must be implemented as shown in the
separate circuit diagram!
In cascade operation, the 1st control unit acts as the master.
The differential pressure gauge for triggering of differential-pressure-controlled backwashing is connected to
the master control unit, all downstream control units (slaves) do not require a differential pressure gauge,
because the master control unit activates the downstream control units via its cascade output and their input
Ext. Backwashing Start in the event that a backwashing triggering differential pressure exists.
If the set differential pressure (S1) exists at the differential pressure gauge, the 1st JUDO JRSF automatic
backwashing protection filter is backwashed. During this time all other JUDO JRSF automatic backwashing
protection filters remain in operation. Once backwashing of the 1st JUDO JRSF automatic backwashing
protection filter is completed, the master control unit issues the signal for backwashing to the 2nd control
unit. In this way, all JUDO JRSF automatic backwashing protection filters are backwashed sequentially. After
the last JUDO JRSF automatic backwashing protection filter has been backwashed, its control unit activates
the Cascade end input of the master control unit. All JUDO JRSF automatic backwashing protection filters
are again in operation.