Application Example 7 - Siemens sed2 Commissioning Manual

Par. no. Value
P0758(1) 0
P0759(1) 10
P0760(1) 100
P2201 80 %
P2202 20 %
P2253(0) 2224
P2306 1
P2200(0) 1
P2280 10
P2285 30
r2262
r2272
P1120 10 s
P1121 30 s

7.7 Application example 7

Condenser tower shall be controlled with the help of the integrated PID controller including hibernation.
Switching Hand / Auto via 2 digital inputs
−
QAE22A for temperature control
−
Error message via relay output 1
−
Indication of operation via relay output 2
−
L1
L2
L3
PE
L1 L2
P(1)
Hz
I Hand
0 Auto
SED2
u v
M
3
Siemens Building Technologies
HVAC Products
Parameter function
Scaling of analog input 2: y1
Scaling of analog input 2: x2
Scaling of analog input 2: y2
Fixed setpoint of digital input 1
Fixed setpoint of digital input 2
PID setpoint
PID acting direction
Enable PID controller
PID proportional gain
PID integral action time
Current setpoint
Actual value
Ramp-up time
Ramp-down time
Fuses
L3
Error
20
21
Com
22
23
Run
24
Com
25
SED2
9
5
Fn
6
P
8
4
2
w
Inspection switch
Fan
Commissioning Guide
7 Application examples
Function selection
(Default)
(Default)
(Default)
Fixed
Indirect
PID controller enabled
Relay 1
Relay 2
Chiller
DIP switch setting
ON
OFF
- Hand
- Off
- Auto
Building Management System
(BMS)
5192A07en
1 = analog input 1
❚ ❚
OFF = DC 0...10 V
1 2 ON = 0...20 mA
2 = analog input 2
OFF = DC 0...10 V
ON = 0...20 mA
37/80
CM1G5192en
26.02.2003