Technical data

Chapter 6 – Programming
Siemens Building Technologies, Inc. 57
P0731, Function of Digital output 1, relay 1 (DOUT1)
Parameter r2379 (relay 1 to motor 1).
Factory setting: 52.3 = SED2 fault enabled
P0732 Digital output 2, relay 2 (DOUT2)
Parameter r2379 (relay 2 to motor 2)
Factory setting: 52.2 = SED2 in operation
Complete parameter setting by changing over to automatic control.
Temperature Control with Ni 1000 Sensor
Use the SED2 to directly measure the
temperature by means of a passive
temperature Ni 1000 sensor. Simple
temperature control is possible. The
sensor connects to the SED2. The
signal can be scaled according to
requirements.
Parameter Settings for Temperature
Control (Commissioning)
Use the same procedure as for
commissioning analog inputs.
The temperature sensor can connect as
follows to the analog inputs:
Ni 1000 on AIN 1:
Connection terminals: 2/4
T
SED2
5
1
9
2
Z
2
6
Ni1000
Figure 38. Temperature Control with Ni 1000 Sensor.
Ni 1000 on AIN 2:
Connection terminals: 2/11
When connecting a Ni 1000 sensor, no other input signal can be processed on the same input,
even if terminals 3/10 for an analog signal of 0 to 10V are free.
P0757 to P0760, Analog Input Scaling
Scaling converts the Ni 1000 sensor
temperature range of –58°F to 302°F (–50°C to
150°C) to %.
Example: 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
ymax
y2
(P0760)
y1
(P0758)
x1
(P0757)
x2
(P0759)
%
V
mA
ymin
10
20
-10
-20