Basic Documentation

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Siemens Universal controllers RMU710B, RMU720B, RMU730B CE1P3150en
Building Technologies Universal controller (basic types A, P, C, U) 03.10.2011
14 Universal controller
(basic types A, P, C, U)
14.1 General
aa a a a
S3 S2 S1 S4 S5
yp yp yp yp yp
S4S2 S1
S2 S1 S4
aa a a a
yp yp yp
aa a a a
yp yp yp
730
720
730
Diff
Diff
Diff
Controller 3Controller 2Controller 1
Gen limit Seq limit
Gen limit Seq limit
Gen limit Seq limit
This universal controller can be activated for controller 1, basic type U, and
controllers 2 and 3 of all basic types. Assign an input to the main controlled
variable to activate the controller.
The universal controller can provide control to an absolute variable or differential
variable.
The following controllers (sequence controllers) are available:
RMU710B: Controller 1
RMU720B: Controller 1, Controller 2
RMU730B: Controller 1, Controller 2, Controller 3
14.2 Activate function
Main menu > Commissioning > Extra configuration > Controller 1..3 > Inputs >
Operating line Adjustable values / remarks
Main controlled variable ---, N.X1, N.X2, ... (analog values only) /
Activate main controlled variable
Main controlled variable ---, N.X1, N.X2, ... (analog values only) /
Activate differential control
The following settings are required depending on the desired function:
Desired control Operating line Setting
Control to a sensor
input
Main controlled variable
Differential input
Xx (analog)
---
Differential control Main controlled variable
Differential input
Xx (analog)
Xx (same unit as main
controlled variable)
The sequence controller always uses the same unit as that of the main controlled
variable (e.g. main controlled variable is the room temperature: Unit °C).
With controllers 2 and 3, the setpoint of controller 1 can be configured as a
differential input. As a result, it is possible e.g. to use controller 2 as a differential
controller with controller 1.
Configuration