Basic Documentation

33/256
Siemens Modular Heating Controller RMH760B CE1P3133en
Building Technologies 3 Commissioning 2017-09-29
The maximum plant size is limited by the number of available terminals and the number
of plant elements (pumps and actuators or positioning outputs):
Plant element
Maximum number
Pumps
6
Positioning outputs
6
Following applies:
A twin pump is regarded as one pump
A positioning output is used for an actuator or a modulating burner. If both the
modulating output and the 3-position positioning output are configured, the 2 are
regarded as one positioning output
3.3.2 Configuration of the universal inputs and outputs
The universal inputs can accept digital signals or passive and active analog signals.
The inputs are activated through basic and extra configuration. When activating an
input, the respective unit is assigned also. For this reason, input identifiers on the
RMH760B cannot be set. Exceptions are the universal display inputs and the 4 fault
inputs.
The setting choices depend on the kind of configuration: Analog or digital input.
In the case of the analog inputs, the following setting choices are available:
Type reference
Measuring range
Measured value correction
The RMH760B is supplied with type Ni 1000 preselected for the temperature sensor.
The following types of input signals can be handled:
Ni 1000
Ni 1000
T1
Pt 1000
DC 0…10 V
NTC 575 (for outside temperature only)
Main menu > Commissioning > Settings > … or
Main menu > Settings > Inputs > …X…
Operating line
Range
Factory setting
Type reference
Ni 1000 / 2 × Ni 1000 /
T1 / Pt 1000 /
DC 0…10 V / NTC 575*
Ni 1000
* For outside temperature only
Type of signal Type of sensing element /
signal
Measuring range
Passive temperature signals
LG-Ni 1000
50…+ 250 °C
Passive temperature signals
2 x LG-Ni 1000 / T1
50…+ 150 °C
Passive temperature signals
Pt1000
50…+400 °C
Active signals DC 0…10 V
Selectable. To be
entered are a low and
a high limit
Passive temperature signals
NTC575*
50…+500 °C
* For outside temperature only
Maximum plant size
Analog inputs
Type reference
Setting
Measuring range