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BETA Monitoring
Monitoring of Plants and Devices
7
LQ2 0 temperature controllers
14/25
Siemens ET B1 · 10/2008
14
■
Dimensional drawings
■
Schematics
Switching examples
7
LQ2 0 temperature controllers in cooling operation
with adjustable functioning temperature difference
7
LQ2 0 temperature controllers in cooling operation
with adjustable functioning temperature difference
7
LQ2 0
7
LQ2 900
6
44
64
45
I2_11324a
90
1 4
36
2 5 3
9
I2_13839a
22
100
Ø
7
7
LQ2 0
7
LQ2 0
The cable length between the device and the temperature sensor must not
exceed a maximum of 100 m. The conductor cross-section must be a
minimum of 2 × 0.75 mm².
1 2 5 4 3
9 10
L N
I2_11509b
Sensor
230
V AC
1 2 5 4 3
9 10
L N
I2_11510a
Sensor
230
V AC
© Siemens AG 2008