Basic Documentation

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Siemens Universal controllers RMU710B, RMU720B, RMU730B CE1P3150en
Building Technologies Temperature controller (basic type A) 03.10.2011
The following configuration operating lines are used to configure the desired
control modes:
Main menu > Commissioning > Extra configuration > Input identifier >
Operating line Adjustable values / remarks
N.X(n) Activate function by assigning the value to the input:
Room temperature, Extract air temperature, Supply air
temperature
...
Ditto
RMZ788(2).X4
Ditto
Main menu > Commissioning > Extra configuration > Controller 1 >
Operating line Range Factory setting
Control strategy With supply air limitation,
Cascade, Constant (supply
air), Alternating
Cascade
Main menu > Commissioning > Extra configuration > Controller 1 > Inputs >
Operating line Adjustable values / remarks
Casc/const
changeover input
---, N.X1, N.X2, ... (digital inputs only).
Input signal meanings:
 Contact closed: Supply air temperature control
 Contact open: Cascade control
11.2.2 Troubleshooting
Misconfiguration has the following effect:
Operating line Setting Type of action
Input identifier N.X(n) The required value(s) "Room
temperature", "Extract air
temperature", or "Supply air
temperature" were not assigned
 Controller 1 inactive or
 "---- °C" is displayed for the actual value in
the corresponding operating line
Input identifier N.X(n) The same input identifier was
assigned multiple times
 Controller 1 is active and uses the input first
assigned
Control strategy Control strategy does not match
input identifier N.X(n) or wrong
control strategy is set
 Controller 1 inactive or
 Controller 1 not visible in menu tree or
 Controls as per set control strategy provided
the corresponding input identifiers exist
Configuration
Misconfiguration