Designation
Terminal
Contactor
terminal
Signal
Remarks
Pump 2
18
M2
(230 V)
19
N
Is connected
20
PE
Pump 1 (2)
6K1 / 2
U
(400 V)
6K1 / 4
V
6K1 / 6
W
X0 / 6
PE
Pump 2
6K5 / 2
U
(400 V)
6K5 / 4
V
6K5 / 6
W
X0 / 7
PE
Overfl ow solenoid
valve 1 (5)
7
Y2
8
N
Is connected
9
PE
Overfl ow solenoid
valve 2
10
Y3
Is connected
11
N
12
PE
Motorised ball
valve 1
55
GND
56
+24 V
Supply
57
0 - 10 V
Manipulated variable
58
0 - 10 V
Feedback
Motorised ball
valve 2
51
GND
52
+24 V
Supply
53
0 - 10 V
Manipulated variable
54
0 - 10 V
Feedback
RS-485
The interface is positioned at the display board in the bottom
interface
left corner of the control box door. Description → p. 24
reflex ’variomat’
Assembly
14
Designation
Terminal
Signal
Remarks
Supply
1
PE
’variomat 1’ line wired with a shock-proof plug
(230 V)
2
N
3
L
Make-up (4)
10
Y1
(230 V)
11
N
12
PE
Common message
13
COM
(fl oating)
14
NC
15
NO
Level gauge
19
PE
Screen
(pressure cell)
20
- level
Signal
(8)
21
+ level
+ 18 V
Pressure
transducer (4)
22
PE
Screen
23
- pressure
Signal
24
+ pressure
+ 18 V
Pump 1 (2)
4
PE
(230 V)
5
N
6
M1
Overfl ow solenoid
valve 1 (5)
7
Y2
8
N
Is connected
9
PE
Overview of the wiring diagram on the circuit board - ’variomat 1’
