Field device couplers

  Enquire / contact me

with power management

Achema 2018

Field device couplers
Field device couplers

Suitable for installation in zone 2 or in safe areas, R. Stahl's 9410 series of compact field device couplers features protection for the trunks against feedback through short circuits in the spurs. The cost-efficient FDCs connect up to twelve Foundation fieldbus H1 or Profibus PA devices via detachable screw terminals with locking screws to a non-intrinsically safe high energy trunk. Users can connect fieldbus devices with Ex nA ignition protection and, with a voltage-limited power supply module, Ex ic or Ex nL devices as well as Ex d and Ex n equipment from zone 1. A power management limits any short circuit currents to one device per coupler: if a spur is affected, it is shut down until the short circuit is removed. This spur protection ensures that the current absorbed by the trunk and the power dissipation are minimised under all operating conditions. In addition to the automatic shutdown, a red LED indicating a short circuit is activated for the affected spur. Additionally, the coupler activates one device after the other as soon as the trunk voltage exceeds 9 V during fieldbus start-up. This soft start function limits the starting current of the segment by up to 50 %. The couplers are suitable for easy upright or horizontal installation on DIN rails. Various enclosure types are available made from GRP or stainless steel according to customer requirements. Accessories include suitable fieldbus power supplies, external terminating resistors and a free engineering software tool that enables easy segment design for FF and Profibus PA segments.

Posted on June 10, 2011 - (2594 views)
by
R. STAHL
Am Bahnhof 30
74638 Waldenburg - Germany
+49-7942-9430
+49-7942-9434377
View full company profile
Location
More products from this supplier
Related articles
Haver & Boecker and Windmöller & Hölscher Presented Aventus at Achema
PCN Europe at ACHEMA 2018
MX Progressing Cavity Pump
Getting Ready for the Process of the Future
Containment as a Challenge
“Process Industry 4.0”: Modularization Paves the Way
The “Nanokicking” Technique
Riding the Process Upswing at ACHEMA
Remote Maintenance “Recipes” for the Pharmaceutical Production
Hot Melt Coating Device
ADIPEC 2018: One Global Industry. One City. One Meeting Place.
13th International Conference and Exhibition on Emissions Monitoring
ACHEMA 2018
The Abu Dhabi International Petroleum Exhibition & Conference 2017
SPS/IPC Drives 2017
Hydropower Balkans International Summit and Exhibition
ADIPEC 2016
SPS IPC Drives
ADIPEC - The Abu Dhabi Petroleum Exhibition & Conference
New Opportunities for Growth