Reflex Variomat VS 1-1/140 Originalbetriebsanleitung Seite 39

Terminal
Signal
number
43 +24 V
Digital inputs
44 E1 E1: Contact water meter
45 E2 E2: Insufficient water switch
51 GND
52 +24 V (supply)
53 0 – 10 V
PV 2 overflow valve (motor ball
(correcting
valve), only for VS 1-2
variable)
54 0 – 10 V
(feedback)
55 GND
56 +24 V (supply)
57 0 – 10 V
PV 1 overflow valve (motor ball
(correcting
valve)
variable)
0 – 10 V
58
(feedback)
7.5.2 Terminal plan, operating unit
1 RS-485 interfaces
2 I/O interface
3 I/O interface (reserve)
4 Micro-SD card
5 10 V supply
Terminal
Signal
number
1 A
RS-485 interface
2 B
S1 networking
3 GND S1
4 A
RS-485 interface
5 B
S2 modules: Expansion or
communication module
6 GND S2
7 +5 V
8 R × D
I/O interface: Interface to the
main board
9 T × D
10 GND IO1
11 +5 V
I/O interface: Interface to the
12 R × D
main board
13 T × D
(reserve)
14 GND IO2
15
10 V~
16 10 V supply
17 FE
Function Wiring
User,
optional
Factory-
provided
---
Factory-
provided
Factory-
provided
Analogue outputs for Pressure
6
and Level
7 Battery compartment
8 Bus module supply voltage
9 DIP switch 2
10 DIP switch 1
Function Wiring
User
supplied
User
supplied
Factory
---
Factory
Variomat 140 — 25.09.2020 - Rev. A
Terminal
Signal
number
18 Y2PE
(shielding)
Analogue outputs: Pressure and
19 Pressure
Level
20 GNDA
Standard 4 – 20 mA
21 Level
22 GNDA
7.5.3 RS-485 interface
Use the S1 and S2 RS-485 interfaces to retrieve all controller data and to enable
the communication with control centres or other devices.
• S1 interface
– A maximum 10 devices can be used in a master-slave linked circuit
via the this interface.
• S2 interface
– "PIS" pressure and "LIS" level.
– Operating modes of the "PU" pumps.
– Operating states of the motorised ball valve/solenoid valve.
– Values of the "FQIRA +" contact water meter.
– All messages.
– All entries in the fault memory.
The following bus modules form part of the optional accessories available for
interface communication.
 Note!
If required, please contact the Reflex Customer Service for the protocol
of the RS-485 interface, details of the connections and information about
the accessories offered.
7.5.3.1 Connecting the RS-485 interface
Main circuit board of the Control Touch controller.
1 Connection terminals for RS-485 connection
2 Dip switch 1
Proceed as follows:
1. Use a screened cable to connect the RS-485 interface to the main circuit
board.
• S 1
– Terminal 1 (A+)
– Terminal 2(B-)
– Terminal 3(GND)
2. Connect the cable screen at one side.
• Terminal 18
3. Activate the terminator on the main circuit board.
• Dip switch 1
 Note!
Activate the terminator when the device is at the beginning or the end
of an RS-485 network.
7.6 Installation and commissioning certificate
 Note!
The installation and commissioning certificate can be found at the end
of the operating manual.
8 Commissioning
 Note!
Confirm that installation and start-up have been carried out correctly
using the installation, start-up and maintenance certificate. This action
is a prerequisite for the making of warranty claims.
– Have the Reflex Customer Service carry out commissioning and
the annual maintenance.
Commissioning
Function Wiring
User
supplied
English — 39