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Bus module instead of a valve island: 8 solenoid valve block on the IS1 rail

Author : J GALE

08 March 2011

Compact zone 1 pneumatic module for R. STAHL’s remote I/O system

Designed as a plug-in module and thus requiring little installation space, R. Stahl say that their new DOMV pneumatic module for the IS1 remote I/O system is a considerably more compact solution than conventional additional valve islands.

The module, which is snapped onto the BusRail, is supplied via the IS1 system. Furthermore, as the company says - it is directly connected to the remote I/O system's internal data and address bus. Thanks to this complete integration, no additional efforts are required for wiring, configuration and monitoring of the DOMV via IS1. The company adds that this digital output module shares the user-friendly features of the IS1 system, e.g. the units are suitable for hot swapping in hazardous areas.

Eight pneumatic control circuits can be connected to the DOMV via 6 mm plug connections. Suitable media are pressurised air or neutral gases; a 5 µm filter is recommended. The module can be operated at 2.5...7 bar. The internal 3/2-way solenoid valves are electronically controlled and monitored for wire breakages – even if a pilot valve is unpressurised. The valves reach up to approx. 1,000 switching cycles per minute (cpm).

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