STIEBEL ELTRON SOM 10 User Manual

Page 7

2.3

Data communication / Bus

The controller is equipped with the VBus

for data

transfer with and energy supply to external modules.
The connection is carried out at the two terminals
marked VBus and GND (any polarity). One or more
VBus

modules can be connected via this data bus,

such as:
• GA3 Large Display module /

Smart Display SD3

• AM1 Alarm module
• DL2 Datalogger
• EM Extension module
Furthermore, the controller can be connected to a
PC via the VBus

/ USB or VBus

/ LAN interface adap-

ter (not included with the SOM 10). With the Service-
Center Software (RSC), measured values can be read,
processed and visualized. The software allows easier
paramatrisation and function control of the system.

Connect the FlowRotor to the input marked Flow-
Rotor.
Connect the analog Grundfos Direct Sensors™
to the inputs GDSA1 and GDSA2.

The terminals S13 to S15 can be used as either im-
pulse inputs for V40 flowmeters or as inputs for FS08
flow switches
V40 flowmeters can be connected to the terminals
S13 / V40 to S15 / V40 and GND (either polarity).
Connect the irradiation sensor CS10 to the termi-
nals CS10 and GND with correct polarity. To do so,
connect the cable marked GND to the GND com-
mon terminal block, the cable marked CS to the ter-
minal marked CS10.
The terminals marked PWM are control outputs
for high-efficiency pumps.
In the In-/Outputs menu, relays can be allocated to
the PWM outputs.

Connect the digital Grundfos Direct Sensors™
to the GDSD1 and GDSD2 inputs.

Note:
For more information about accessories, see
page 80

The controller is supplied with power via a power
supply cable. The power supply of the device must be
100 ... 240 V~ (50 ... 60Hz).

The power supply connection is at the terminals:
Neutral conductor N

Conductor L

Conductor L' (L' is not connected with the power
supply cable. L' is a fused contact permanently carry-
ing voltage)
Protective grounging conductor (common termi-
nal block)

WARNING!

Electric shock!
L‘ is a fused contact permanently
carrying voltage

Always disconnect the con-
troller from power supply
before opening the housing!