KNX MDT SCN-RTC20.02 Time Switch Instruction Manual
- June 4, 2024
- KNX
Table of Contents
SCN-RTC20.02 Time Switch
Instruction Manual
Important safety notes
Danger High Voltage
Installation and commissioning of the device only be carried out by
authorized electricians. The relevant standards, directives, regulations, and
instructions must be observed. The devices are approved for use in the EU and
have the CE mark. Use in USA and Canada is prohibited.
Terminals, Operating, and Display Time Switch
- KNX bus connection terminal
- Programming key
- Red programming LED
- Operating buttons
Installation Time Switch
| Technical Data | SCN-RTC20.02 |
|---|---|
| Number of channels | 20 |
| Cycle times each channel | 8 |
| Accuracy typ. | < 5min/year |
| Power reserve | 24 hours |
| Specification KNX interface | TP-256 |
| Available application software | ETS 5 |
Permitted wire gauge
KNX bus connection terminal| 0,8mm Ø, solid core
Power Supply| KNX Bus
Power consumption KNX bus type.| < 0,25W
Operation temperature range| 0 bis + 45°C
Enclosure| IP 20
Dimensions MDRC (Space Units)| 4TE
- Place the Time Switch on DIN 35mm rail.
- Connect the Time Switch to the KNX bus.
- Switch on the KNX power supply.
Exemplary circuit diagram SCN-RTC20.02
Description Time Switch
The MDT Time switch with 20 channels (8 cycle times for each channel) has a
daily/weekly/Astro switching function and an adequate power reserve if the bus
voltage fails. The cycle times of the single channels are adjustable by the
ETS or can be set directly at the device.
The large active color display for comfortable handling allows direct
switching of the 20 channels (Manual Mode).
The time switch offers cyclic sending of the time on the KNX bus and clock
time adjustment by bus telegram (Master-/slave mode).
The 8 logical blocks with 4 inputs each allow individual conjunctions.
The MDT Time Switch is a modular installation device for fixed installation in
dry rooms. It fits on DIN 35mm rails in power distribution boards or closed
compact boxes.
Commissioning Time Switch
Note: Before commissioning please download the application software at
www.mdt.de/Downloads.html
-
Assign the physical address and set parameters with the ETS.
-
Upload the physical address and parameters into the Time Switch.
After the request press the programming button. -
After successful programming, the LED turns off.
MDT technologies GmbH
51766 Engelskirchen
Papiermühle 1
Tel.: + 49 – 2263 – 880
Fax: + 49 – 2263 – 4588
knx@mdt.de
www.mdt.de