Remote power distribution, I/O modules and fieldbus interfacing system
18 May 2005
Interconnection
Remote installations relieve control cabinets of components for power distribution, drive control and drive monitoring.
One side of remote automation is to distribute power as simply as possible. The other side consists of pluggable interface and power modules for remote consumer devices such as starters integrated into the motor, frequency converters or single-phase consumer devices.
Wieland's podis system is based on the 7 pole flexible flat cable and interrupt-free connection technology with insulation-piercing termination. The podis (which stands for 'power distribution') bus is a 'flexible busbar' in the shape of a flat cable and is especially useful in powering automation components and motors that are highly distributed over a wide area. This is a new concept of power transmission and distribution in IP 65 protection rating for automation technology in industrial environments.
Wieland introduced the original system to the market in 2000. Since then it has proven its potential for rationalisation and reliability. Regarding safety, the system operates stably according to EN 60947-7-1.
Power and auxiliary power, or the AS interface bus signal, are distributed in the plant via the flat podis cable. I/O modules, fieldbus interfaces and single-phase switches at the AS interface or Profibus DP are installed at the desired points near the consumer device without interrupting the power bus line.
The name 'podis Con' represents the family of passive components within the podis power bus system, and includes power bus cables and all passive connection elements for fixed or pluggable power branches. With podis PLAN, a design aid, one can design the power bus for a system and determine the optimal configuration.
The name 'podis Electronic' represents all the active, remote components with control functionality for AS Interface or Profibus DP. They function as the links between the power bus and the fieldbus on the one hand and the I/O devices (consumer devices, sensors) on the other.
The benefits of the podis power bus are: simple and fast installation; exclusion of wiring errors due to coded power outputs; contacting without stripping the sheath or insulation; flexible addition of branch lines; connection of power outputs - pluggable or fixed; cable assemblies as required; optimal design with the help of the podis Plan tool.
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