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SPS IPC Drives 2017

Encoder comes in a 22-mm aluminum enclosure

Published 2017-12-01

FSG (Germany) exhibited at SPS IPC Drives 2017 its MH609y-II-CAN series of rotary encoders. The CANopen interface complies with CiA 406.

The shown rotary encoder is designed for applications with limited space (Photo: FSG)

The 22-mm encoders are used for example for measuring axes in joysticks, command units, or driving switches in construction machines, ships, and rail vehicles. Originally, they were used in racing car. The products are less than 39 mm long and weight just 80 g. They implement redundant Hall sensors for detecting 0° to 360°. The dual-channel CAN interface supports CANopen (CiA 301) and the CiA 406 device profile for encoders.

Due to the dual-measurement capability, the sensor is suitable for functional safety applications. It provides a 12-bit resolution (360°) and features a linearity of ±0,2 % with a repeat accuracy of 0,1°. The encoder is equipped with an 8-pole flat-ribbon connection cable. Because the magnetic measuring principle of the Hall sensors requires no mechanical contact, the encoder has a lifespan of at least 300 million cycles. It features IP65 ingress protection, a housing made of seawater-resistant aluminum and a 6-mm shaft made from stainless steel. It is suitable for environmental temperatures from -40 °C to +80 °C. The encoder withstands 6 ms shock and vibration of 25 g (according to IEC 60068-2-27) and 4 g in the range of 5 Hz to 100 Hz sine frequencies (according to IEC 60028-2-6). The device supports input voltages of 18 VDC to 36 VDC and draws some 50 mA of current. A reverse polarity protection is provided.

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