Basic Documentation

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Siemens Universal controllers RMU710B, RMU720B, RMU730B CE1P3150en
Building Technologies Aggregates 03.10.2011
Normally, the operating modes are assigned to the speeds as follows:
Operating mode Fan
Comfort:
Speed 2
Precomfort:
Speed 1
Economy:
Off
Note the following for 2-speed fans:
 Both speeds are never active at the same time (disabled in the software)
 If speed 2 is selected from the start, speed 1 is first switched on for an
adjustable period of time (runup time) before switching to speed 2
 When switching back from speed 2 to speed 1, the controller switches off speed
2 and switches on speed 1 only after the rundown (coasting) time is over
 If outside and exhaust air shutoff dampers (with spring return motors) and not
the precommand output are used, a delay off relay must ensure that the air
dampers do not suddenly shut while the fan is still coasting
Main menu > Commissioning > Settings > .... or
Main menu > Settings > Aggregates > Supply air fan >
Main menu > Settings > Aggregates > Extract air fan >
Operating line Range Factory setting
Runup time 00.00...10.00 m:s 00.10 m:s
Rundown time 00.00...10.00 m:s 00.10 m:s
TiRup
TiCst
0
0
I
I
Relais
Speed 2
Speed 2
Speed 1
Off
Fan nominal
Relais
Speed 1
3150D07en
Relais
TiRup = Runup time
TiCst = Rundown (coasting) time
The current state of the fans is displayed on the operator unit.
Main menu > Aggregates > Supply air fan >
Operating line Comments
Supply air fan Display of the current fan speed: Off, Speed 1, Speed 2
Main menu > Aggregates > Extract air fan >
Operating line Comments
Extract air fan Display of the current fan speed: Off, Speed 1, Speed 2
Setting values
Function diagram
Display values