Siemens Building Technologies CM2N3205E / 05.2001
Landis & Staefa Division 11/18
Selection of the operating mode and time and weekday settings can be blocked when
the front cover is closed. Various operational faults are identified and indicated by the
controller.
Note changed values on the reverse side of the operating instructions (folded sheet).
Operating voltage AC 24 V ±20 %
Safety extra-low voltage (SELV) as per EN 60 730
External transformer (100 % duty) as per EN 60 742
Fusing of supply line (external) 10 A max.
Frequency 50 Hz or 60 Hz
Power consumption 10 VA
Voltage at open input DC 20...23 V
Logic 0
<DC 1 V
Logic 1
>DC 5 V
Current at "Logic 0" 9 mA
Perm. line lengths with copper 1.5 mm
2
300 m max.
Sensors
Passive LG-Ni1000 Ω
Active DC 0...10 V
Measuring range −50...+150 °C
Perm. line lengths with copper 1.5 mm
2
200 m max.
Setpoint transmitter
Passive 1000...1235 Ω
Active DC 0...10 V
Setting range −50...+150 °C
Perm. line lengths dep. on transmitter type
Output voltage DC 0...10 V
Output current
±1 mA max.
Max. load sustained short-circuit
Switching capacity, voltage AC 19 V min., 265 V max.
Switching capacity, current at AC 19 V 20 mA min., 4 A / 3 A
1)
max.
Switching capacity, current at AC 265 V 5 mA min., 4 A / 3 A
1)
max.
Switching capacity, voltage DC 5 V min., AC 42 V
2)
max.
Switching capacity, current 100 mA min., 1 mA max.
Protection class III as per EN 60 730
Housing protection
when mounted on a flat wall IP 40 as per EN 60 529
when mounted in a control panel front
Casing IP 40 as per EN 60 529
Base IP 20 as per EN 60 529
Operation as per IEC 721-3-3
Climatic conditions class 3K5
Temperature −5...+50 °C
Humidity (non-condensing)
<95 % r.h.
Transport as per IEC 721-3-2
Climatic conditions class 2K3
Temperature
−25...+70 °C
Humidity
<95 % r.h.
Mechanical conditions class 2M2
Automatic electric controls
for household and similar use EN 60 730
Emissions as per EN 50 081-1
Immunity as per EN 50 082-2
EMC directives 89/336/EEC
Low voltage directive 73/23/EEC
Reserve in the event of a power failure 48 h (typical)
Connection terminals for wires 2 x 1.5 mm
2
or 1 x 2.5 mm
2
Weight (incl. packaging) 1.17 kg
1) at cos ϕ = 0.6
2) SELV as per EN 60 730
Operating and
maintenance notes
Setting aid
Technical data
Power supply
Inputs
Digital inputs E1...E8
nalog inputs
B1, B2, B4, B9, Z
Outputs
nalog outputs
Y10, Y20, Y30
Relay outputs
Q13/Q14, Q23/Q24
Relay output
F91, F92
Degree of protection
Environmental conditions
Standards
Product standards
Electromagnetic
compatibility
conformity as per
Miscellaneous
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