Reflex Servitec 35 Mode D'emploi Original page 30

Installation
6.5.1 T e rminal diagram
1 Main fuse
Fuse for motorized ball valve
3 CD degassing control valve
4 Group message
5 Optional for conductivity
6 Ball control valve
(correcting variable (25) / Return value (46))
7 RS-485 interface
8
---
T e rminal
S ignal
number
1 PE
230 V power supply via mains
2 N
cable and plug.
3 L
4 PE
5N N "PU" pump
6 M1 M 1
7 Y2
8 N CD degassing control valve
9 PE
10 Y 1
11 N WV make-up valve
12 PE
13 COM
14 NC Group message (floating).
15 NO
16 Not assigned
External make-up demand from
Make-up (230
17
a pressurisation station;
V)
controller must be set to
Make-up (230
18 "Levelcontrol"!
V)
19 PE shield
Level analogue input, not used
20 - Level (signal)
by the device.
21 + Level (+ 18 V)
22 PE (shield)
- Pressure
23
(signal)
Pressure analogue input
+ Pressure (+
24
18 V)
0 – 10 V
25
(correcting
variable)
0 – 10 V
26
Ball control valve
(feedback)
27 GND
28 + 24 V (supply)
29 A + RS-485 interface.
30 — English
All manuals and user guides at all-guides.com
F unction Wiring
Pre-wired
Pre-wired
Pre-wired
Pre-wired
User,
optional
User,
optional
---
Pre-wired
Pre-wired
User,
Vacuum spray degassing — 24.04.2020 - Rev. A
9 Digital inputs:
Water meter; Insufficient water
10 Ball control valve (supply)
11 Pressure analogue input
12 External make-up demand (Levelcontrol only)
13 WV make-up valve
14 Pump
15 Mains supply
T e rminal
S ignal
number
30 B -
31 GND
Insufficient water switch - dry-
+ 24 V
32
running protection
Contact water meter, for
evaluation of the make-up,
33 E1
terminal 32/33 closed = meter
pulse.
Insufficient water switch, contact
32/34. Lead the cable of the
insufficient water switch through
34 E2
the cable gland and connect at
the terminals
6.5.2 RS -485 interface
6.5.2.1 Connecting the RS-485 interface
Connect the interface as follows:
1. For connecting the interface use only a cable with these properties:
– LJYCY (TP), 4 × 2 × 0.8, maximum overall bus length 1000 m.
2. Use a shielded cable to connect the interface to terminals 29, 30, 31 of the
main board in the control cabinet.
– For connecting the interface, see chapter 6.5 "Elektrischer Anschluss"
on page 10 .
3. When using the device with a control centre not supporting an RS-485
interface (RS-232, for example), you must use a corresponding adapter.
F unction Wiring
optional
Pre-wired
User,
optional
Pre-wired