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Application examples
Output configuration
Modulating load input with
switching command outputs
Load input,
start condition
A B C D
Number of
stages or
aggregates
Run priority
changeover
4
1
Start
(Example
1)
A+B+C+D
a
d d d d
Yes
Description:
- Control of refrigeration machine with 4 compressors to outlet temperature.
- Run priority changeover includes changeover incase of fault.
Plant diagram
Function diagram
X
P
0 %
0 %
Q
X
P
100 %
B
A
C
D
100 %
Q
A
B
C
D
31
2
3
D
21
AI
DI
AO
DO
T
31
23
S
46
4x
4
3
2
1
Configuration diagram
C D
C
D
X
C
D
Rotary
step switch 1
Main menu > Commissioning > Extra configuration > Aggregates > Rotary step switch >
Rotary step switch 1…2 >
Configuration
Operating line
Setting
Type Linear
81 / 216
Siemens
Switching and monitoring device RMS705B
CE1P3124en
Building Technologies
Aggregates
01.04.2010