Power distribution system for automation applications
Staff
Electronics CEL
E-T-A Circuit Breakers has launched a DC 24 V power distribution and remote output system.
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The SVS16 features a fully-fledged Profibus-DP/DeviceNet interface according to EN 50170/IEC 61158, supporting all specified baud rates up to maximum 12 MBaud. This new system reduces wiring times and increases diagnostic capabilities in process control, chemical, pharmaceutical, and food industries as well as steel production and automotive manufacturing.
The new power distribution and remote output system SVS16-PB-08 provides selective overcurrent protection, power distribution in load circuits as well as switching, protection and monitoring of digital outputs up to 10 A. Integral consistent communication of operating and error conditions as well as switching and resetting of individual circuits on the DC 24 V level via Profibus-DP or DeviceNet, make the SVS16 an intelligent sub-system on the control level. The track-mountable base module SVS16-PB-08 accommodates eight electronic circuit protectors ESX10-125 (with reset input) up to 10 A. They ensure selective overcurrent protection of sensors/actuators, peripheral sub-assemblies etc. and their supply lines.
Alternatively the slots of the SVS16 allow the use of the solid state power controller
E-1048-7xx. Its features and benefits include monitoring and control of hydraulic or pneumatic solenoids, signal lamps etc., in the range from 0.5 A through 5 A with regard to short circuit, overload and wire break. For larger systems a 16-way version SVS-PB-16 can be made available.
The 10 mm2 supply terminals “plus” and “minus” for the DC 24 V supply have been designed redundantly contrary to the “PE” terminal. All supply terminals and the 2.5mm2 output terminals are optionally available as screwless or screw terminals.
The integral PBM module forwards all failures of the eight circuits to the PLC via the 9-pin Sub-D plug. The electronic circuit protectors ESX10 or the SSPRCs 1048-7xx receive a remote reset or control command “ON/OFF” via the same Profibus/DeviceNet cable after an overcurrent disconnection. In case of a single signal wiring of the SVS16-PB-08, it is not necessary to connect at least 18 cables for signaling and control, but only one Profibus/DeviceNet cable. The integral Profibus/DeviceNet module allows simultaneous transfer of signaling and control data directly to the PLC, thus saving additional I/O components.
