Catalog

Standard controllers
Communicating HVAC controllers
Switching and monitoring device RMS..
5-33
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Siemens Switzerland Ltd
Building Technologies Division
5
Data sheet N3124
Operating voltage AC 24 V
Frequency 50/60 Hz
Power consumption 12 VA
Universal inputs‚ number 8
Universal input‚ signal LG-Ni1000
2 x LG-Ni1000
T1 (PTC)
Pt1000
0...1000 Ohm
DC 0...10 V
Digital pulse contact
Potential-free digital status contact
Analog outputs‚ number 4
Analog output‚ signal DC 0...10 V
Analog output‚ current Max. 1 mA
Relay outputs‚ number 6
Relay outputs Potential-free switching contact
Relay output‚ switching voltage AC 19...250 V
Relay output‚ switching current 4 (3) A
Communication KNX (KNX TP1)
Degree of protection IP20
Dimensions (W x H x D) 173 x 90 x 80 mm
Switching and monitoring device
In connection with the function blocks‚ the RMS705B complements the range of Synco700 products as
a freely configurable unit for
- control and supervisory functions in heating‚ ventilation and refrigeration plant
- non-standard applications
and‚ for this reason‚ offers no predefined standard applications.
The RMS705B is especially suited for the following functions:
- Connection of additional universal alarm inputs
- Adding free inputs for display and supervision
- Event logging (e.g. legionella function)
- Additional time programs (ON / OFF) for basic functions
- Maximum and minimum selection
- Calculation of average
- Calculation of enthalpy‚ enthalpy differential‚ absolute humidity‚ dewpoint and wet bulb temperature
- Logic function blocks for switching on / off depending on different conditions
- Lead / lag control of pumps‚ fans‚ motors‚ chillers‚ etc.‚ with automatic changeover
- Step switch with linear‚ binary or flexible functionality
- Autonomous sequence controllers with P‚ PI or PID mode
Available extension modules:
- 1 universal module RMZ785
- 2 universal modules RMZ787
- 2 universal modules RMZ788
Total maximal 4 extension modules per RMS705B can be connected.
Suitable types of operator units:
- Plug-in operator unit type RMZ790
- Detached operator unit type RMZ791
- Bus operating unit type RMZ792
RMS705B..