Basic Documentation

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Siemens Universal controllers RMU710B, RMU720B, RMU730B CE1P3150en
Building Technologies Aggregates 03.10.2011
The corresponding control parameters Xp and Tn as well as the min. speed can be
set in addition to the pressure setpoint.
Main menu > Commissioning > Settings > .... or
Main menu > Settings > Aggregates > Supply air fan >
Main menu > Settings > Aggregates > Extract air fan >
Operating line Range Factory setting
Pressure setpoint Depending on selected input
identifier
300 Pa / 30 mbar /
3 bar
Pressure controller Xp Depending on selected input
identifier
1000 Pa / 50 mbar /
5 bar
Pressure controller Tn 00.00...10.00 m:s 02.00 m:s
Speed min 0...100% 0%
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: 0...100%
Actual value of pressure
Pressure setpoint
Main menu > Aggregates > Extract air fan >
Operating line Comments
Extract air fan Display of the current fan speed: 0...100%
Actual value of pressure
Pressure setpoint
Control to constant volumetric flow for 1 or 2-speed operation
Main menu > Commissioning > Settings > .... or
Main menu > Settings > Aggregates > Supply air fan >
Main menu > Settings > Aggregates > Extract air fan >
Operating line Range Factory setting
Unit
Max. 20 characters
Step 1 0…999.9 0.9
Step 2 0…999.9 1.5
P-band Xp 0…999.9 10.0
Integral action time Tn 00.00...59.59 m:s 02.00 m:s
K-factor 0.0…999.9
45.7
Speed min 0...100% 0%
A volumetric flow signal must be available at the input.
There are two types of volumetric flow signals:
 Case 1: The dynamic pressure is measured (signal 0…10 V corresponds to
0..100% dynamic pressure); the volumetric flow is calculated internally
 Case 2: The volumetric flow is measured directly (signal at input: 0…10 V
corresponds to 0…100% volumetric flow)
Setting values
Display values
Settings
Explanation on the
settings