Basic Documentation
Table Of Contents
- Wall-mounted sensors and room operator units for KNX/ETS and KNX/ACS
- Contents
- 0 About this document
- 1 Devices
- 2 Safety and EMC optimization
- 3 Mounting and electrical installation
- 4 Functionality / Use
- 5 ETS engineering
- 5.1 Engineering
- 5.2 Commissioning
- 5.3 Communication objects
- 5.4 Room operator unit visualization and operation
- 5.5 ETS parameter description
- 5.5.1 Room temperature sensor
- 5.5.2 Room temperature control
- 5.5.3 Room relative humidity sensor
- 5.5.4 Room relative humidity control
- 5.5.5 Room air quality sensor
- 5.5.6 Room air quality control
- 5.5.7 Device display parameters
- 5.5.8 HVAC operation and display
- 5.5.9 Operation and display: Relative humidity visualization
- 5.5.10 Display on QMX3.P70 Air quality indication LED
- 5.5.11 Operation and display: air quality
- 5.5.12 Operation of light, shading and scenes
- 5.6 Examples for the operation of touch keys and display elements
- 6 ACS engineering
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Siemens Wall-mounted sensors and room operator units for KNX/ETS and KNX/ACS CM2N1602en_07
Smart Infrastructure Safety and EMC optimization 2020-06-20
2 Safety and EMC optimization
2.1 Notes on safety
This section explains general and system-specific regulations for mains and
operating voltages. It includes important information for your safety and the safety
of the entire plant.
Please comply with the following general regulations during engineering and
execution:
· Electrical and mains power ordinances for the given country.
· Other applicable, national regulations.
· Building installation regulations for the given country.
· Regulations of the utility company.
· Diagrams, cable lists, dispositions, specifications, and orders by the customer or
authorized engineering office.
· Third-party regulations, e.g. by the general contractor or building owner.
The electrical safety for building automation and control systems by Siemens is
essentially based on safely separating low voltage from mains voltage.
2.2 Device-specific regulations
Note permissible line lengths and topologies when planning and installing
controllers and field devices featuring KNX bus connection. Make sure the bus
supply complies with the KNX standard.
Do not open the device.
The device is maintenance free. Only the manufacturer can repair the device.
2.3 Notes on EMC optimization
When setting up cable ducts, separate strongly interfering cables from susceptible
entities.
· Interfering cables: Motor cables especially from motors supplied by inverters,
energy-supplying cables.
· Susceptible entities: Control cables, low voltage cables, interface cables, LAN
cables, digital and analog signal cables.
· Both types of cables may be in the same cable duct, but in separate
compartments.
· If no three-sided, closed duct with separating wall is available, the interfering
cables must be separated by at least 150 mm from the others or placed in
separate ducts.
· Crossings of strongly interfering cables with possibly susceptible entities must
be at a right angle.
· In exceptional cases, signal and interfering power cables may be run in parallel,
resulting in a high interference risk.
We recommend to generally use unscreened cables. Comply with the
manufacturer's installation recommendations for selecting unscreened cables. In
general, unshielded twisted pair cables have sufficient EMC properties for
technical building applications (including data applications) and do not require
consideration of coupling to surrounding earth.
Please comply
with these notes
General
regulations
Safety
KNX bus supply
Warning,
Maintenance
Setting up
cable ducts
Cable types
Separate cables
Unscreened cables