Siemens Synco 700 RMZ785 Basic Documentation page 90

Modulating load input with
switching command outputs
(Example 1)
Configuration
Siemens
Building Technologies
Application examples
Load input,
Number of
start condition
stages or
aggregates
A+B+C+D a
Description:
- Several recirdulated air heaters with different capacities are controlled to room temperature.
- Rated outputs for the 4 aggregates controlled digitally by the flexible step switch: Aggregate A = 1
kW, Aggregate B = 1 kW, Aggregate C = 2 kW, Aggregate D = 3 kW.
- The total output at X = 100 % is 7 kW.
P
Plant diagram
1 KW
1 KW
DI
AI
DO
AO
Configuration diagram
Rotary
step switch 1
X
Main menu > Commissioning > Extra configuration > Aggregates > Rotary step switch >
Rotary step switch 1...2 >
Operating line
Type
Main menu > Commissioning > Settings > .... or
Main menu > Settings > Aggregates > Rotary step switch > Rotary step switch 1...2 >
Operating line
Output A
Output B
Output C
Output D
Switching and monitoring device RMS705B
Aggregates
Output configuration
A B
1 4
Start
d d
3 KW
2 KW
4
3
2
1
T
C D
C D
Setting
Flexible
Range
0.1...999.9
0.1...999.9
0.1...999.9
0.1...999.9
Run priority
C D
changeover
d d No
Function diagram
A
B
C
D
0 %
X
P
B
D
C
B
0 %
X
P
Setting
1.0
1.0
2.0
3.0
CE1P3124en
01.04.2010
100 %
A
B
C
100 %
91 / 216