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Mclennan Servo Supplies offers an optical encoder with an integrated fibre-optic transmitter and separate receiver that enables position and speed feedback over long distances.

The XHI 801 Optolink is part of the Heavy-Duty 800 series from Swedish encoder manufacturer Leine and Linde.

In addition to long-distance signal transmission of up to 1,500m, the XHI 801 Optolink is unaffected by electromagnetic disturbances and has good galvanic insulation between the transmitter and receiver.

These characteristics make the encoder suited to remote monitoring applications such as speed and blade pitch position for wind turbines or robotic manipulation positioning in hazardous areas.

Other areas of use include EMC-sensitive motion control and applications in which control systems may be susceptible to lightning strikes, such as cranes and hoists.

The hollow shaft incremental encoder is available in a wide choice of angular resolutions, from 500 to 10,000 pulses per rev, and features both optically transmitted and HTL, TTL or RS-422 electrical signals that may be used together for both short-distance servo control and long-distance position monitoring.

The separate receiver accessory converts the optically transmitted information into HTL or RS 422 level signals.

The XHI 801 Optolink is a rugged, industrial-grade encoder with IP67 ingress protection and a very high resilience to shock and vibration.

With ceramic bearings, a stainless-steel hollow shaft and a durable anodised aluminium housing, the encoder offers a long life with low maintenance over an operational temperature range of -40C to 80C.

Other Leine and Linde 800 series encoders available from Mclennan include ATEX versions; extra-robust versions with HTL, TTL or RS422 electrical output; units with built-in advanced diagnostics for extreme levels of safety and reliability; and dual-redundancy versions.

Mclennan Servo Supplies

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