Basic Documentation

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Siemens Universal controllers RMU710B, RMU720B, RMU730B CE1P3150en
Building Technologies Flow temperature, demand-controlled (basic type C) 03.10.2011
13 Flow temperature, demand-controlled
(basic type C)
13.1 General
aa a
S3 S2 S1 S4 S5
yp yp yp yp yp
S4S2 S1
Diff
S2 S1 S4
aa a a a
yp yp yp
aa a a a
yp yp yp
Diff
730
720
730
Gen limit Seq limit
Controller 1 (Flow temperature) Controller 2
Gen limit Seq limit
Gen limit Seq limit
Controller 3
N.X1
Y
SIGNAL Y
x
°C
With basic type C, controller 1 is reserved for demand-dependent flow temperature
control (chilled water). Input N.X1 is reserved for the flow temperature sensor.
Controller 2 and 3 are universal controllers.
The following controllers (sequence controllers) are available:
RMU710B: Controller 1
RMU720B: Controller 1, Controller 2
RMU730B: Controller 1, Controller 2, Controller 3
13.2 Activate function
Main controlled variable configuration occurs via basic type selection.
Main menu > Commissioning > Extra configuration > Controller 1 > Inputs >
Operating line Adjustable values / remarks
Main controlled variable N.X1 (read-only)
13.2.1 Further procedure to configure the controllers
Action Notes in…
Define control mode
 Chilled water precontrol
 Precontrol for 2-pipe systems
Section 13.3
Section 13.4
The following auxiliary functions can be
activated additionally:
 Universal adjustment
 General limiter
 Sequence limiter
 Sequence locking acc to OT
 Control timeout
Section 15.6
Section 15.2
Section 15.3
Section 15.4
Section 15.8
Assign to the individual sequence
outputs
Sect.15.1.3
A deviation message can be activated
for each controller
Section 15.7
Control parameters controllers 1…3 Section 15.1.4
Configuration