Siemens SED2 Commissioning Manual

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Siemens Building Technologies Commissioning Guide CM1G5192en
HVAC Products 7 Application examples 26.02.2003
7.3 Application example 3
Temperature control: Cooling
− When the demand for cooling increases, the fan will increase its speed
− Switching on / off via digital input 1 (thermostat), on temperature rise ON
− External alarm to digital input 2 (e.g. fire alarm); fan stops in the event of an alarm
− 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
11
2
SED2
uvw
LG-Ni 1000
M
3
21
22
23
24
25
6
Fuses
Building Management System
(BMS)
Inspection switch
Fan
5192A03en
Error
Com
Run
Com
Relay 1
Relay 2
- Switch on/off
- External alarm
7.3.1 Parameter changes
Start with quick commissioning according to application example 1
Par. no. Value Parameter function Function selection
P0003 3 User access level Expert function
P0702(0) 29 Function of digital input 2 in “Auto” mode External alarm
P0702(1) 29 Function digital input 2 in “Hand” mode External alarm
P701(0) 16 Function of digital input 1 ON, fixed setpoint (thermostat)
P2201 22 °C Room temperature setpoint Adjust required setpoint
P2253(0) 2224 Setpoint source for PID setpoint Fixed PID setpoint
P501(1) 29 Selection of temperature sensor LG-Ni 1000: -50...150 °C
P2264(0) 755.1 PID feedback Analog input 2
P2306 0 Selection of cooling / heating sequence Cooling
P2200(0) 1 Enable PID controller PID controller enabled
P2280 10 PID proportional gain
P2285 30 PID integral action time
r2262 Current setpoint
r2272 Current feedback
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

Siemens SED2 Specifications

General

Brand	Siemens
Model	SED2
Category	DC Drives
Language	English