Reflex Variomat VS 1, Operating Manual, Page: 32 / 68

Installation
32 — English Variomat 1 — 06.07.2016 – Rev. B
Terminal
number
Signal Function Wiring
1 PE
230 V power supply via mains cable and plug. Pre-wired 2 N
3 L
4 PE
Pump for maintaining the pressure. Pre-wired 5N N
6 M1 M 1
7 Y2
Overflow solenoid valve
• Not used in a standard device.
--- 8 N
9 PE
10 Y 1
Valve to control the water make-up. Pre-wired 11 N
12 PE
13 COM
Group message (floating). User, optional 14 NC
15 N.O.
16 Not assigned
External make-up request.
• To be used only upon consultation with the Reflex Customer
Service. --- 17 Make-up (230 V)
18 Make-up (230 V)
19 PE shield
Level analogue input.
• Display at the controller.
• Activation of the make-up.
• Dry-running protection of the pump.
Factory prepared,
sensor plug must be
inserted on site
20 - Level (signal)
21 + Level (+ 18 V)
22 PE (shield)
Pressure analogue input.
• Display at the controller.
• Control of pressure maintenance.
Pre-wired 23 - Pressure (signal)
24 + Pressure (+ 18 V)
25 0 – 10 V (correcting
variable)
Motor ball valve in the overflow line to control the pressure
maintenance.
Pre-wired
26 0 – 10 V (feedback)
27 GND
28 + 24 V (supply)
29 A
RS-485 interface. User, optional 30 B
31 GND
32 + 24 V (supply) E1 Supply for E1 and E2. Pre-wired
33
E1 Contact water meter (in Fillset, for example), see chapter 4.6
"Optional equipment and accessories" on page 13 .
• Evaluation of the make-up.
– If contact 32/33 is closed = meter pulse.
User, optional
34
E2 Insufficient water switch.
• Not used in this device.
– If contact 32/34 is closed = OK. ---