2. Instructions for installation and connections
19
Dr. A. Kuntze
I
Gutes Wasser mit System
Robert-Bosch-Str. 7a
40668 Meerbusch
+49 (0) 2150-7066-0 / Fax -60
www.kuntze.com
Connection
Terminals
Notes
Digital input 2
53-55
53 = +, 54 = -, low water, level monitoring,
or controller stop
Volume based dosing
53 = Signal
54 = GND
55 = + 15 VDC
Analog output 1
30+31
30 = + und 31 = -,
max. load 500 Ohm
Analog output 2
32+33
32 = + und 33 = -,
max. load 500 Ohm
Relay 1
70+71
Controller: control variable set point1
Volume based dosing: control variable
set point 1
Max. 2 A, AC 250 V/550 VA
DC 30 V / 60 W
Relay 2
73+74
Controller: control variable set point 2
(with 3-point controller control variable
set point 1)
Volume based dosing: circulation pump
Max. 2 A, AC 250 V/550 VA
DC 30 V/60 W
Relay 3
76+77
Alarm relay
Max. 2 A, AC 250 V/550 VA DC 30 V/60 W
Power supply
L+N
85-265 V AC
Power supply 24 V DC
+ / -
24 V DC
Modbus RTU
A+B
┴
A = +
B = -
┴ = Screen
Add-ons (marked in grey)
Controller or volume based dosing, second digital input, up to 2 mA outputs, data logging,
and RS 485
