en
7
Installation
Indications,
functions and options
Messages
Commissioning
Operation and function
Measuring unit
CTL3
CTL2
CTL1
L2
L3
L1
N
tubra
®
-eTherm sensor
Made in Germany
Versorgung
/
Power supply
160mA 240V~
Betrieb
/
Power
Störung
/
Error
DE-33659 Bielefeld
VBus
S0-2
S0-1
A
B
C
VBus
®
cable to tubra
®
-eTherm
A
Power supply:
Neutral conductor N
Conductor 1
L1
Conductor 2
L2
Conductor 3
L3
B
Current sensors:
Current sensor CTL1
Current sensor CTL2
Current sensor CTL3
C
Data communication VBus
®
The connection is to be carried out at the terminals marked VBus (either polarity).
The bus cable can be extended with a two-wire cable (bell wire). The cable carries
low voltage and must not run together in a cable conduit with cables carrying a
higher voltage than 50 V (please pay attention to the valid local regulations). The
cross section must be at least 0.5 mm
2
and the cable can be extended up to 50 m in
the case of a single connection.
D
Digital S0 impulse outputs
S0-1: Heating
S0-2: Excess
The S0 outputs can be used for transferring the heat energy of the tubra
®
-eTherm
to external energy management systems and for feeding the excess into the public
grid.
D
Summary of Contents for tubra-eTherm
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