Modular cut-out safety relay system

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Phoenix Contact has enhanced the modular cut-out relay system PSR with new, safe input modules. The interface module PSR-SIM4 enables simple connection of up to four safety switches each with one closer/ opener contact to the master cut-out relay.

 

This means, for example, that up to four safety doors can be monitored in a machine with one cut-out relay. If more than four protection doors are needed, then several PSR-SIM4 modules can be connected to each other quickly and easily via the mounting rail connector PSR-TBUS. They can then be evaluated via the master cut-out relay PSR-SDC4. For easy analysis, the switch status of the cut-out sensors can be monitored via message outputs (e.g. in an SPS).

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