Cost-Effective Configuration and Elimination of Complexity in Safety Circuits

Safety Valve Island Cost-Effective Configuration and Elimination of Complexity in Safety Circuits

16.01.2019Editor: Ahlam Rais

Emerson has introduced the ability to integrate multiple safety zones within a single Asco Numatics Series 503 valve island.

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The Asco Numatics Series 503 valve island ensures the operator does not have to shut down the entire machine by releasing compressed air with a redundant safety/control dump valve.
(Source: Emerson)

This enables the creation of up to three independent electro-pneumatic safety zones, while also allowing independent non-safe sections to co-exist within one valve island assembly. Alternative solutions enable the isolation of one zone only per island. The zoned safety approach helps the design engineer satisfy the Machinery Directive 2006/42/EC and comply with ISO 13849-1 while eliminating the components and complexity commonly found in existing safety circuits.

With this functionality, the original equipment manufacturer (OEM) and end user can easily and

cost-effectively configure up to three safety circuits in a machine using a single Asco Numatics Series 503 valve island with G3 fieldbus electronics. The simple, user-friendly zoned safety approach reduces

components, saves space and improves design flexibility, states the firm.

The zoned safety valve island ensures the operator does not have to shut down the entire machine by releasing compressed air with a redundant safety/control dump valve. Instead, the company explains that the valve island can be configured to shut down pilot air and power only to the group of valves that controls the machine’s motion in the operator’s vicinity.

According to the firm, as the zoned safety capability is designed into the standard valve island platform, no redesign is required and the user has optimal choices when selecting valve options, accessories, and flow requirements. The flexible approach also significantly reduces safety system cost and enables valuable machine space to be saved for other purposes.

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Safety Valve Island Cost-Effective Configuration and Elimination of Complexity in Safety Circuits

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