Basic Documentation

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Siemens Universal controllers RMU710B, RMU720B, RMU730B CE1P3150en
Building Technologies Aggregates 03.10.2011
Since measurement variations can occur during operation, a delay time can be set.
For example, the following function can be implemented: Release of an electric
heating coil via a flow signal.
Main menu > Commissioning > Settings > .... or
Main menu > Settings > Aggregates > Step switch 1...3 >
Operating line Range Factory setting
Switch-off delay release 00.00...10.00 m:s 00.05 m:s
If an overrun time is entered for the step switch, we recommend to use the input of
the V-belt supervision as a release for the step switch. This ensures that an electric
heating coil can be switched on only when there is a flow.
The external release takes priority over a signal from frost protection or from
preheating. Thus, an electric heating coil can be decoupled from the frost function.
10.6.8 Modulating output
The output signal of the modulating output (Y) can be limited at the top and at the
bottom.
Main menu > Commissioning > Settings > .... or
Main menu > Settings > Aggregates > Step switch 1...3 >
Operating line Range Factory setting
Positioning signal min 0...100% 0%
Positioning signal max 0...100% 100%
Each modulating output can be inverted.
Main menu > Commissioning > Settings > .... or
Main menu > Settings > Aggregates > Step switch 1...3 >
Operating line Range Factory setting
Inversion Yes, No
No
Meaning:
 No: 0...100% load = 0...100% output
 Yes: 0...100% load = 100...0% output
When the output is inverted, the modulating output remains at 0 V until the first
step (relay) is switched on. This functionality is available for linear, but not
cascaded step switches.
10.6.9 Assign texts
The texts for the step switches can be adapted via operation. They are displayed at
the relevant operating line and on the menu.
Main menu > Commissioning > Settings > .... or
Main menu > Settings > Aggregates > Step switch 1...3 >
Operating line Range Factory setting
Step switch… Max. 20 characters Step switch…
Important
Setting values
Setting values
Note
Setting values