Siemens Adds IO-Link to Current Monitoring Relays Portfolio

The Siemens Industry Automation Division’s switching technology portfolio has been complemented with the addition of the Sirius 3RR24 current monitoring relay for IO-Link. The new Sirius 3RR24 has the ability to track the motors over the complete torque curve and can also perform current monitoring of the whole plant.

In addition, the device can detect load shedding during instances like belt snapping and motor overloads owing to driven conveyor belt or crane overload. Sirius 3RR24 can also identify cable breaks, current imbalances, ground faults, and phase sequences. The present data can be read off the device on a display locally. The load feeder can be incorporated with current monitoring relay, wherein the wiring costs can be eliminated by installing atop a Sirius 3RT2 contactor.

Measured values and data can be transferred from the relay to the higher-level control across the IO-Link interface, besides the autonomous monitoring function. This makes the detailed troubleshooting and diagnostics easier. Communication over IO-Links simplifies commissioning. The Sirius relay can be parameterized on the device directly, or it can be parameterized from the PLC, which decreases commissioning if repeated parameterization occurs. While replacing a device, the new relay can be automatically parameterized via data comparison with the parameter server. Work can be resumed soon after replacement and requires no specific skill of controllers or monitoring relays, leading to minimal overhead in plant maintenance.

Sirius 3RR24 has complemented and augmented the portfolio of monitoring relays for IO-Link for monitoring variables like voltages, temperature, speed, and power factors.

Source: http://www.siemens.com/

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