Latest addition to the Hengstler Acuro-drive absolute encoder series
April 2015
Sensors & Transducers
The newest addition to the Hengstler Acuro-drive absolute encoder series has been developed specifically for integration in servo motors. The AD58DQ is an encoder designed for long-life operation in harsh environments where it is exposed to powerful vibrations, harsh shocks and high mechanical loads, but it is also an encoder that can continue to work with high precision in spite of these conditions.
This multi-turn device is an optical encoder with multi-turn gear and optical scanning. The mechanical concept is based on a shaft assembly mounted in dual ball-bearings with a flexible torque support. As a result, these encoders are suitable for incorporating in BLDC servo motors and such demanding applications as CNC, precision positioning and high-resolution printing. The encoder is available with resolutions of up to 22 bits single-turn and 12 bits multi-turn.
The encoder is designed for integration into servo motors in single and multi-turn versions. It is equipped with the Drive-CLiQ interface of the Sinamics/Sinumeric drive family from Siemens. One of the most beneficial functions of the Drive-CLiQ is the simplified commissioning and automated configuration of components in the overall system.
Noise sensitive adapter boxes and tedious configuration work are eliminated with the AD58DQ. An integral encoder temperature sensor is used to monitor encoder temperature. In addition, the the device has a separate connection for a KTY motor winding temperature sensor, bringing the motor winding temperature directly into the encoder, where this data can be supplied to the system via the Drive-CLiQ.
This guarantees reliable function and increased availability of the engine at high winding temperatures, while eliminating the need to run two extra conductors. Another highlight of the AD58DQ is that it meets the requirements of SIL 2/ PL d/ Category 3 and, in conjunction with Sinamics/Sinumeric, it also meets the requirements of safety integrated drive systems.
For more information contact Gerry Bryant, Countapulse Controls, +27 (0)11 615 7556, [email protected], www.countapulse.co.za
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