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Siemens Building Technologies SED2 variable speed drives CM1U5192en

HVAC Products Programming 01.2002

6.4.5 Temperature control with LG-Ni 1000 sensor

SED2

Ni1000

Use the SED2 to directly measure the temperature by means of a passive temperature

sensor of type LG-Ni 1000. Simple temperature control is possible accordingly.

The sensor is connected to the VSD. The signal can be scaled according to

requirements.

Same procedure as for commissioning analog inputs.

The temperature sensor can be connected as follows to the analog inputs:

LG-Ni 1000 on AIN 1

Connection terminals: 2/4

LG-Ni 1000 on AIN 2

Connection terminals: 2/11

Note: When connecting a LG-Ni 1000 sensor, no other input signal can be processed

on the same channel, even if terminals 3 / 10 for an analog signal of 0 to 10 V

are free.

P0757 to P0760, scaling

During scaling, the LG-Ni 1000 sensor's temperature range of –50 to 150 °C can be

converted to %.

ymax

(P0760)

(P0758)

(P0757)

(P0759)

ymin

-10

-20

Example: LG-Ni 1000 on AIN1:

P0757[0] = –50 °C

P0758[0] = –50%

P0759[0] = 150 °C

P0760[0] = 150%

Factory settings: P0757 = 0

P0758 = 0.0

P0759 = 10

P0760 = 100

Parameterization

temperature control

(Commissioning notes)

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Siemens SED2 Instrucciones de operaciones Pagina 72