User Manual

Run priority changeover with the linear step switch
Only the linear step switch offers run priority changeover, i.e. when the load outputs
have equal-size steps. In addition, the combination of commands
and load
must be the same for outputs A…D.
Run priority changeover may occur via:
 Sequence selector on the operator unit.
 Periodic changeover (weekly).
 Changeover by operating hours.
 First in first out.
Several changeover types can be activated at the same time.
Changeover is as follows:
Periodic changeover with 4 aggregates. Example:
Week 1: A, B, C, D
Week 2: B, C, D, A
Week 3: C, D, A, B
Week 4: D, A, B, C
Week 5: A, B, C, D
etc.
The main menu shows which aggregates are part of the changeover at any given
time. This display is only available for the linear step switch.
Note
"Rotation priority" shows the aggregate with current run priority.
Main menu > Settings > Aggregates > Rotary step switch 1…2 >
Operating line Comment
Rotation priority ---, Aggregate A, Aggregate B, Aggregate C, Aggregate D
Rotation aggregates ---, A+B, A+B+C, A+B+C+D
Sequen
ce selector on
the operator unit.
The se
quence selector allows for determining the lead aggregate and the switching
sequence applied to the aggregates.
Main menu > Commissioning > Settings > .... or
Main menu > Settings >Aggregates > Rotary step switch > Rotary step switch 1…2 >
Operating line Range Factory setting
Sequence selection
manual
Auto, Aggregate A, Aggregate B,
Aggregate C, Aggregate D
Auto
Auto Automatic change of lead aggregate.
Aggregate A Sequence A, B, C, D
Aggregate B Sequence B, C, D, A
Aggregate C Sequence C, D, A, B
Aggregate D Sequence D, A, B, C
88 / 216
Siemens Switching and monitoring device RMS705B CE1P3124en
Building Technologies Aggregates 01.04.2010