Weidmuller introduces u-remote Safe Power-feed Modules

Dec. 5, 2016 – Weidmuller says its UR20-PF-O u-remote Safe Power-feed Modules feature integrated functionality to safely switch off power to all modules that are within a safety segment, eliminating the need for a safety controller.

The UR20-PF-O modules promise to safely switch off the power to all output modules when supplied from the safe power-feed slice. This function creates a “safety segment” that is managed locally by the module. The safety rated input works together with pulsed inputs to detect broken wires and short circuits. These safe power-feed modules go beyond standard safety relays by providing real-time feedback on which safety circuit is down, says Weidmuller, adding that since this functionality is built into the modules, there is no need for expensive safety controllers and complex safety programs. The modules can be used in complex automation solutions by cascading multiple safe power-feed modules together. Available in 1 input, 2 inputs, or 2 inputs with delay, one UR20-PF-O module can manage up to 12 switchable output modules versus the more expensive system design that requires a safety module for each output module, says Weidmuller.