Siemens SED2

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Siemens Building Technologies Commissioning Guide CM1G5192en
HVAC Products 7 Application examples 26.02.2003
7.6 Application example 6
Ventilation equipment shall be controlled with the help of the integrated PID controller.
− Switching on / off via 2 digital inputs (application matched for 2 different setpoints via central control unit
RWI65.02, load-dependent fan control)
− External alarm via digital input 3; in the event of an alarm, fan will be stopped
− 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
5192A06en
Error
Com
Run
Com
Relay 1
Relay 2
- External alarm
- On: Speed high
- On: Speed low
Pressure sensor
DC 0...10 V
7.6.1 Parameter changes
Start with quick commissioning according to application example 1
Par. no. Value Parameter function Function selection
P0003 3 User access level Expert access
P0701(0) 16
Function of digital input 1
in “Auto” mode
Fixed setpoint + ON
P0702(0) 16
Function of digital input 2
in “Auto” mode
Fixed setpoint + ON
P0703(0) 29
Function of digital input 3
in “Auto” mode
In the event of an external alarm, fan will be stopped
P0703(1) 29
Function digital input 3
in “Hand” mode
In the event of an external alarm, fan will be stopped
P0756(1) 1 Analog input DC...10 V (default)
P0757(1) 0 Scaling of analog input 2: x1 (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