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DESCRIPTION OF THE CONTROL TERMINALS
J2
NO C NC
alarm feedback
DESCRIPTION FROM LEFT TO RIGHT
Terminal N°
Type of cable
2 x 0.5 or 0.75 mm² or 3 x
J2
0.5 or 0.75 mm² in accor-
dance with required con-
tacts
X4
2 x 0.5 or 0.75 mm²
Shielded if length greater
than 5 meters or power
cable nearby
J9
2 x 0.5 or 0.75 mm²
J6
2 x 0.5 or 0.75 mm²
J5
2 x 0.5 or 0.75 mm²
J4
2 x 0.5 or 0.75 mm²
J17
2 x 0.5 or 0.75 mm²
J40
With Jack connection
X4
pulse feedback
Inlet
Alarm delay in case of:
- Electrical supply fault
- Low salt level (option)
- Water supply fault (option)
Off - from left to right:
NO = Normally open dry contact
C = Common
NF = Normally closed dry contact
On - from left to right:
NF = Normally closed dry contact
C = Common
NO = Normally open dry contact
Dry contact:
- maximum load 10 W
- limits 100 V & 0.4 A
Dry contact output
Softener no. 2 dialogue inhibit.
For 2 softeners in dialogue (parallel), regeneration of no. 2
prohibited when no. 1 is regenerating and vice versa.
It is important to observe this connection direction:
!
the + of J9 must be connected to the + of J6. Same for -.
Configuration with more than 2 pieces equipment is not
anticipated.
Dialogue lock input from OUT of another softener unit
Low salt level input (option)
Contact closed at low level: display REGE FAULT
Raw water shortage inlet (option)
Terminals delivered with a strap (contact open at low level:
regeneration blockage)
Remote regeneration cut-in input (hardness tester option)
Dry contact: closed 30 seconds for regeneration cut-in.
Re-setting by re-opening the contact for 30 seconds to avoid
regeneration looping.
Main power supply
24 VA – 1.25 A
Technical manual BWT PERLA PRO XL - code P0011186 - Rev 4 - 20/10/2021
J9
J6
J5
J4
locking
Outlet
Description
J17
J40
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