Receiver module for energy harvesting wireless switches from CHERRY offers several connectivity options

From today at Southern Manufacturing 2015 on Stand J115 CHERRY will show the receiver module for its energy harvesting wireless switches. The receiver will be available as an RF-stampin the shape of a mini printed circuit board (22 x 26 x 4mm) for integration into an existing electronic control system. Alternatively the module will also be available as a completely independent housed receiver with several connectivity options and its own power supply. In this shape the receiver module also benefits from small dimensions (61 x 69 x 30mm wxdxh) and is suitable for wall mounting. Both versions are available for European and North-American frequency bands.

CHERRY’s energy harvesting wireless switch for industrial applications is a batteryless alternative for wired microswitches. With the demand for intelligent networking in the industry and the increasing trend for the ‘intelligent factory’, the energy harvesting switch from CHERRY offers many advantages in applications where a complex wire assembly and/or batteries would be inappropriate. The required RF-energy is created by the mechanical actuation of the switch and the data is transmitted wirelessly using RF-technology. As a result there is no need for complex and expensive connection systems, which means no cables and no batteries to change so no maintenance required – just fit and forget. The technology is very easy to install – even in hard-to-reach places.

CHERRY’s energy harvesting wireless switch offers a high energy yield of 2 pulses min. 0.33 mWs an operating temperature range of -40 up to +85 degrees Celsius, and a long mechanical life of up to 1,000,000 operations. The operating force is 8N. The vibration resistance is 5 g and the shock resistance is 15 g. Furthermore the switch is fully network-compatible. Several available radio frequencies (e.g. 868 MHz and 915 MHz (with a radio range of 30m) and 2.4 GHz (with a radio range of 10m)) enable worldwide use in numerous applications. As there is no need to change or dispose of any batteries, the switch is very environmentally friendly and maintenance-free.

CHERRY offers two standardised package versions for industrial applications: as a rocker switch for actuation by hand and as a snap-action switch for mechanical actuation, e.g. by a machine. The switch can easily be connected with a standard SPS bus system like OpenCAN and Profibus or industrial interfaces like RS485, SPI, 4-20mA and 0-24V. The signal received simply transmits to an SPS or other industrial control.

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