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Siemens Commissioning Guide CM1G5192en
Building Technologies 7 Applications 29.07.2010
7.5 Application 5
The speed of a fan motor shall be controlled with the help of the integrated PID controller to keep the CO2
equivalent of the CO2 / VOC sensor / ventilation demand processor high via the signal output.
– Adjust the fixed setpoint (50% corresponding to the CO2 equivalent of 1000 ppm)
– Switching on / off via digital input 1
– External alarm to digital input 2; in the event of an alarm, the fan will be stopped
– Booster function via digital input 3 (rpm = 100%)
– Error message via relay output 1
– Indication of operation via relay output 2
Hand
Auto
SED2
0
I
P
Fn
P(1)
Hz
L1
L2
L3
PE
L1 L2 L3
20
9
5
10
2
SED2
uvw
M
3
21
22
23
24
25
6
7
Fuses
Building Management System
(BMS)
Inspection switch
Fan
5192A05en
- Switch on/off
- External alarm
- Booster
Com
Com
Error
Run
Relay 1
Relay 2
Air Quality Sensor
0...10 V DC
7.5.1 Parameter changes
Start with quick commissioning according to application 1
Par. no. Value Parameter function Function selection
P0701(0) 16 Fixed setpoint
(Direct selection + ON)
P0702(0) 29 Function of digital input 2
in “Auto” mode
In the event of an external alarm, fan will be stopped
P0702(1) 29 Function of digital input 2
in “Hand” mode
In the event of external alarm, fan will be stopped
P0703(0) 15 Function of digital input 3 Fixed setpoint
P0756(1) 1 Defines analog input 2 DC 0...10 V (default)
P0757(1) 0 Scaling of analog input 2: x1 (Default)
P0758(1) 0 Scaling of analog input 2: y1 (Default)
P0759(1) 10 Scaling of analog input 2: x2 (Default)
DIP switch setting
ON
1 = Analog input 1
OFF
■ ■
OFF = DC 0…10 V
1 2
ON = 0…20 mA
2 = Analog input 2
OFF = DC 0…10 V
ON = 0…20 mA
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