en
9
Installation
Indications,
functions and options
Messages
Commissioning
Operation and function
Controller
V
Bus
V
Bus
S4
S5
R4
S3
GND
Made in Germany
tubra
®
-eTherm controller
DE-33659 Bielefeld
Sensors
S2
S1
100 ... 240 V
T4A
50-60 Hz
N
R2
R3
R1
L
R1-R3|1 (1) A 240 V~
IP 20
PWM
SD
R4
N
N
N
N
R3
R2
R1
L
1
2
3
4
5
6
7
8
9
10
11
S6
S7
The power supply via the power unit is at the terminals:
Neutral conductor
N
Conductor L
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 R1 … R3
Neutral conductor N
Protective earth conductor
⏚
• Relay 4 is a potential-free extra-low voltage relay.
Mains and sensor cables are already connected to the device.
Further temperature sensors can be connected to the terminals S3 and S4 (ei-
ther polarity).
S4 and S5 can be used as digital switching inputs with either polarity.
S6 and S7 are impulse inputs (no function).
The terminal marked PWM is the control output for a high-efficiency pump.
The controller is equipped with the VBus
®
for data communication. The connec-
tion is to be carried out at the terminals marked VBus (either polarity). The power
unit and the measuring unit are connected via this data bus.
Note
For more details about the commissioning procedure see page 16.
V
Bus
V
Bus
S4
S5
R4
S3
GND
Made in Germany
tubra
®
-eTherm controller
DE-33659 Bielefeld
Sensors
S2
S1
100 ... 240 V
T4A
50-60 Hz
N
R2
R3
R1
L
R1-R3|1 (1) A 240 V~
IP 20
PWM
SD
R4
N
N
N
N
R3
R2
R1
L
1
2
3
4
5
6
7
8
9
10
11
S6
S7
A1 1
3 5
A2 2 4 6
Note
The optional function External load switches relay 3 (see page 25).
The optional function External load 2 switches relay 2. As an exter-
nal load usually has a high power consumption, it must be controlled by
means of an auxiliary relay with a flyback diode.
Summary of Contents for tubra-eTherm
Page 123: ...27 fr...
