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
Analog inputs
B1, B2, B4, B9, Z
Outputs
Analog 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
