Basic Documentation

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Siemens Modular Heating Controller RMH760B CE1P3133en
Building Technologies 6 Boiler temperature control 2017-09-29
Main menu > Commissioning > Extra configuration > Boiler > Inputs
Operating line
Adjustable values / display / remarks
Checkback signal burner
Checkb sign shutoff valve
Fault burner
Fault input 1
Fault input 2
Fault input 3
[Boiler pump] overload
[Boiler pump B] overload
Flow signal pump
The type of fault input can be parameterized at menu item …Settings > Inputs at the
relevant terminal.
Main menu > Commissioning > Settings > … or
Main menu > Settings > Inputs
Operating line
Range
Factory setting
Normal position
Open / Closed
Open
A burner fault can be indicated by the burner fault input, or it can be generated when
there is no burner checkback signal from the controller.
The waiting time for the burner’s checkback signal can be adjusted (signal delay).
If there is no checkback signal from the shutoff valve, the boiler is considered faulty
also. The waiting time for the checkback signal can be adjusted. If there is no
checkback signal on completion of the waiting time, a fault will be signaled.
It can be selected whether or not flue gas temperatures above the maximum
permissible level shall lead to a fault with boiler stop.
There are 3 digital fault inputs available having a default parameterization for water
shortage, high-pressure and low-pressure. But it is also possible to use other fault text.
Depending on the type of fault, the signal delay, fault acknowledgement, priority and /
or action can be parameterized. For fault inputs 1, 2 and 3, it is also possible to enter
fault text.
For details about the meaning of these settings, refer to chapter 14 "Function block
faults".
Main menu > Commissioning > Settings > … or
Main menu > Settings > Boiler > Fault settings > Checkb sign shutoff valve
Operating line
Range
Factory setting
Signal delay start 00.05…59.55 m.s 02.00 m.s
Main menu > Commissioning > Settings > … or
Main menu > Settings > Boiler > Fault settings > Fault burner
Operating line
Range
Factory setting
Fault acknowledgement None / Acknowledge /
Acknowledge and reset
Acknowledge
Burner fault
Fault shutoff valve
Maximum flue gas
temperature
Digital fault inputs
Fault settings