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8.3.9
Inputs for load-dependent switching
The rotary step switch provides various options to define load. You can use load
input , start conditions 1…4, or a combination of both. The result, which acts on
the rotary step switch as a signal, depends on the type of rotary step switch.
Load
input
Start
condition 1..4
Types
Signals acting on the rotary step switch
X --
Linear
Flexible
Binary
Load ( )
--
X
Linear
Number of switched on start conditions =
Number of started aggregates
X
X
Linear
Max. selection between load and
number of switched-on start conditions
*
(100/number of
aggregates)
X X
Flexible
Binary
Max. selection between load and
Σ
[switching value n] load
-- X
Flexible
Binary
Σ
[switching value n] load
8.3.10 Load input
Load signal 0…100% is provided to the rotary step switch via load input ( ) for the
step switch function.
Main menu > Commissioning > Extra configuration > Aggregates > Rotary step switch >
Rotary step switch 1…2 >
Configuration
Operating line
Adjustable values / Comment
Load input
---, X1, X2, ...
C D
C
D
X
Rotary
step switch 1
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Siemens
Switching and monitoring device RMS705B
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Building Technologies
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01.04.2010