Siemens Synco 700 RMZ785 Basic Documentation page 92

Modulating load input with
switching command and
modulating load outputs
(Example 3)
Configuration
Siemens
Building Technologies
Load input,
Number of
start condition
stages or
aggregates
A+B a
Description:
- 2 refrigeration machines with different capacities have an internal output control (e.g. hot gas
bypass) controlled in sequence to a common flow temperature.
- Typical capacity profile: Aggregate A (min. output = 0.5 kW, rated output = 3 kW), Aggregate B (min.
output 1 kW; rated output 6 kW).
- The total output at X = 100 % is 9 kW.
P
Plant diagram
1
1
DI
AI
DO
AO
Configuration diagram
Modul. output Modul. output
A B
Main menu > 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
Min output A
Output B
Min output B
Switching and monitoring device RMS705B
Aggregates
Output configuration
A B
1 4
Start
d a d a
Function diagram (not to dimensions)
T
2
2
Rotary
step switch 1
X
Setting
Flexible
Range
0.1...999.9
0.0...999.9
0.1...999.9
0.0...999.9
Run priority
C D
changeover
+
B
B
A
A
0 %
X
P
C D
C D
Setting
3.0
0.5
6.0
1.0
CE1P3124en
No
100 %
Q
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01.04.2010