Basic Documentation

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Siemens Universal controllers RMU710B, RMU720B, RMU730B CE1P3150en
Building Technologies Sequence controller 03.10.2011
Main menu > Commissioning > Settings > … or
Main menu > Settings > Controller 1…3 > Setpoint effects >
Operating line Range Factory setting
[Setp compensation 2] delta 0.0 K
[Setp compensation 2] end 30.0 °C
[Setp compensation 2] start 20.0 °C
[Setp compensation 1] start 0.0 °C
[Setp compensation 1] end 0.0 °C
[Setp compensation 1] delta 0.0 K
* Depends on analog value; here, e.g. temperature °C
15.6.3 Troubleshooting
A check is made to see if a sensor is connected to the input when exiting the
commissioning menu. If the sensor is connected but missing later, a fault message
"Sensor error X.." is generated.
If there is no sensor, setpoint compensation is set to inactive.
15.7 Deviation signal
A deviation message can be generated for every main controlled variable. This
function can be deactivated by setting the values extremely high.
Main menu > Commissioning > Settings > .... or
Main menu > Settings > Controller 1…3 > Setpoint effects >
Operating line Range Factory setting
Deviation message 100 K, 100%,
900 g/kg, 900 kJ/kg,
2000 W/m2, 500 m/s,
100 bar, 1000 mbar,
9000 Pa, 9000 ppm,
900.0, 9000
Deviation message delay high 00.00...6.00 h.m 00.30 h.m
Deviation message delay low 00.00...6.00 h.m 00.30 h.m
15.7.1 Operating principle
A fault message is triggered after a set period of time, if the control loop operates at
its limit (all heating sequences open and all cooling sequences closed, or vice
versa) and the set actual value / setpoint deviation is exceeded.
The fault message delay can be adjusted separately for the upper and lower stop.
This allows also for monitoring plants, not only heating or cooling.
 The time must be sufficiently long to ensure that no fault message is generated
when the plant is started.
 The deviation message always refers to the sequence controller. In other words
the supply air is monitored for supply air temperature cascade control. Set the
values accordingly.
 The deviation message only works when the control process is active. No
deviation message is generated e.g. when all sequences are locked according
to the outside temperature.
Setting values
Setting values
Notes