Som 7 si, 1 data communication/ bus – STIEBEL ELTRON SOM 7 SI User Manual
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SOM 7 SI
S1
S2
S4 / TRF
1.2.2 Allocation of Clamps for System 1
Standard Solar System with 1 tank, 1 pump and 2
sensors. Sensor S4 / TRF can optionally be used for Energy
Production Measurement.
R1
Arr 1
S3
1.2.1 Data communication/ Bus
The controller comes with a VBus
®
for data communication
and energy supply of external modules. The connection
is effected with optional polarity at the clamps marked
with„VBus
®
. Via this data bus you can install one or more
VBus
®
modules.
• Energy Production Measurement Module WMZ-M1
• Large Display GA3
• Data Logger, DL1
• Data Teleindication, DFA2
The controller can also be connected to a PC with the
help of a RS-COM adapter. With the Service Center
Software (RCS) the controller parameters can be changed,
measurements can be read out, processed and visualised.
The software enables an easy function control and
adjustment of the system.
1
2
S1
S2
S3
3
4
5
6
Temp. Sensor Pt1000
L
N
R1
N
R2
N
20
19
18
17
16
15
S4
7
8
14
13
12
DE - 45527 Hattingen
DeltaSol BS Plus
2 (1) A 115
2
V~
(1) A 115 V~
R1
R2
T4A
115 V~
CU 72060171 01
UL 60730-1A:2002
CSA E60730.1:2002
VBus
9 10
VBus
connection clamps
Symbol
Specification
S1
Collector Sensor
S2
Lower Tank Sensor
S3
Upper Tank Sensor
(optional)
S4 / TRF
Sensor for Energy
Production Measurement
(optional)
R1
Solar Pump