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Type summary
Ordering
Equipment combinations
Technical design
blue / red
to AEW
white
R1
R2
2/8
Siemens Building Technologies
HVAC Products
Standard version AEW36.2:
Connection of 2 meters to the connecting cable by means of the cable connectors sup-
plied with the unit. Labeling in German.
Country-specific version AEW36.2/DK:
Connection of 2 meters to the pulse adapter's terminal block. Labeling in Danish.
When ordering, please give type reference: AEW36.2
When installing, the pulse adapter must be programmed with the data set delivered
with the parameter setting software for the respective meter. If meters not contained in
the meter data base shall be connec ted, a new data set must be requested from:
Siemens
Landis & Staefa electronic GmbH
Hr. Georg Bendlin
Sondershäuser Landstr. 27
D-99974 Mühlhausen
With the correct data set installed, the following types of meters can be connected:
−
Water meters with pulse output
−
Heat meters with pulse output
−
Gas meters with pulse output
−
Steam meters with pulse output
−
Electricity meters with S0 interface (note: an additional WHZ.S0 converter is re-
quired, refer to Data Sheet CE1N2867)
The pulse adapter handles pulses in accordance with the following specification:
Pulse source
limit values (if parameters are appropriately
set)
Electronic outputs
residual voltage when switched
(Open Collector,
max. frequency
Open Drain)
min. pulse width
Mechanical switches
bounce time
(Reed contact, re-
max. frequency
lays)
min. pulse width
Mechanical switches
resistance R1
with NAMUR circuits
resistance R2
The inputs are protected against overvoltages. Open collector outputs must be con-
nected with the correct polarities:
Channel 1: + blue, ground white
Channel 2: + red, ground white
Pulse Adapter AEW36.2
Tel.: +49 (0) 36 01 / 46 83 – 21
Fax: +49 (0) 36 01 / 46 83 – 61
E-Mail: georg.bendlin@siemens.com
< 0.7 V
< 17 Hz
30 ms
< 1 ms
< 2 Hz
260 ms
2.2 kOhm
5.6 kOhm
CE1N2873en
09.10.2003
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