Siemens SED2 Series, Руководство по эксплуатации

Страница: 72 / 126

72/126
Siemens Building Technologies SED2 variable speed drives CM1U5192en
HVAC Products Programming 01.2002
6.4.5 Temperature control with LG-Ni 1000 sensor
T
SED2
5192Z26
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
y2
(P0760)
y1
(P0758)
x1
(P0757)
x2
(P0759)
%
V
mA
ymin
10
20
-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)