Installation
14 — English
— 03.09.2020 - Rev. A
Terminal
number
Signal
Function
Wiring
10
Y3
PV 2 solenoid valve
Factory-
provided
11
N
12
PE
15
M1
Compressor 1 with 230 V
systems,
with 400 V systems via 6K1
motor protection
Factory-
provided
16
N
17
PE
18
M2
Compressor 2 with 230 V
systems,
with 400 V systems via 6K1
motor protection
Factory-
provided
19
N
20
PE
21
FB1
Compressor 1 voltage
monitoring
Factory-
provided
22a
FB2a
Compressor 2 voltage
monitoring
Factory-
provided
22b
FB2b
External make-up request
together with 22a
---
27
M1
Flat plug for supply,
compressor 1
Factory-
provided
31
M2
Flat plug for supply,
compressor 2
Factory-
provided
45
E2
E2: Insufficient water switch
Factory-
provided
51
GND
Solenoid valve 2
---
52
+24 V (supply)
53
0 – 10 V
(correcting
variable)
54
0 – 10 V
(feedback)
55
GND
Solenoid valve 1
---
56
+24 V (supply)
57
0 – 10 V
(correcting
variable)
58
0 – 10 V
(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
6
Analogue outputs for Pressure and Level
7
Battery compartment
8
Bus module supply voltage
9
DIP switch 2
10
DIP switch 1
Terminal
number
Signal
Function
Wiring
1
A
RS-485 interface
S1 networking
User
supplied
2
B
3
GND S1
4
A
RS-485 interface
S2 modules: Expansion or
communication module
User
supplied
5
B
6
GND S2
7
+5 V
I/O interface: Interface to the main
board
Factory
8
R × D
9
T × D
10
GND IO1
11
+5 V
I/O interface: Interface to the main
board
(reserve)
---
12
R × D
13
T × D
14
GND IO2
15
10 V~
10 V supply
Factory
16
17
FE
18
Y2PE
(shielding)
Analogue outputs: Pressure and
Level
Standard 4 – 20 mA
User
supplied
19
Pressure
20
GNDA
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.
–
"CÖ" compressor operating states.
–
Operating states of the "PV" solenoid valve in the overflow line.
–
Operating states of the "WV" solenoid valve in the make-up line.
–
Aggregate volume of the FQIRA + contact water meter.
–
All messages, see chapter 10.3.3 "Messages" on page 19 .
–
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
•
Use a shielded cable to connect the interface to terminals 1 – 6 of the main
board in the control cabinet.
–
For connecting the interface, see chapter 7.5 "Electrical connection"
on page 13 .
•
When using the device with a control centre not supporting an RS-485
interface (RS-232, for example), you must use a corresponding adapter.
Note!
•
For connecting the interface use only a cable with these
properties.
–
LJYCY (TP), 4 × 2 × 0.8, maximum overall bus length
1000 m.
Cooke Industries - Phone: +64 9 579 2185 Email: [email protected] Web: www.cookeindustries.co.nz
