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Verfügbare Sprachen
Verfügbare Sprachen
2. INSTALLATION
CONTROLLER
Sensors
1
2
3
4
The power supply via the power unit is at the terminals:
Neutral conductor
Conductor
Protective earth conductor
The controller is equipped with 4 relays in total. The loading pump is connected to R1.
• Relays 1 ... 3 are semiconductor relays, designed for pump speed control:
Conductor
Neutral conductor
Protective earth conductor ⏚
• Relay 4 is a potential-free extra-low voltage relay.
Mains and sensor cables are already connected to the device.
S1 and S2 are inputs for temperature sensors of the electric heating and of the store base. Further
temperature sensors can be connected to the terminals S3 and S4 (either polarity).
S4 and S5 can be used as digital switching inputs with either polarity.
S6 is an analogue input for the pressure sensor.
S7 is an impulse input (no function).
The terminal marked PWM is the control output for a high-efficiency pump.
The controller is equipped with the VBus
ried out at the terminals marked VBus (either polarity). The power unit and the sensor module
are connected via this data bus.
NOTE
For more details about the commissioning procedure see page 61.
SD
IP 20
R4|1 (1) A 30V
Sensors
GND
1
2
3
4
5
6
7
8
9
10
11
NOTE
The optional function External load switches relay 3 (see page 71). The optional func-
tion External load 2 switches relay 2. As an external load usually has a high power
consumption, it must be controlled by means of an auxiliary relay with a flyback diode.
SD
IP 20
R4|1 (1) A 30V
S6
S7
GND
5
6
7
8
9
10
11
N
L
⏚
R1 ... R3
N
®
for data communication. The connection is to be car-
100 – 240 V
50 – 60 Hz
Made in Germany
R1-R3|1 (1) A 240 V~
S6
S7
N
R3
R2
R1
N
N
N
T4A
100 – 240 V
50 – 60 Hz
Made in Germany
R1-R3|1 (1) A 240 V~
L
N
R3
R2
R1
L
N
N
N
N
T4A
L
L
N
A1 1
3 5
A2 2 4 6
51
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