Magnetic Encoders Offer Higher Accuracy
Heidenhain recently released the new ERM 2400 series of modular magnetic encoders. Featuring more compact dimensions than the 200 series, the ERM 2400 series can be used in applications such as in spindles for milling machines. According to the company’s press release, the encoders consist of a scanning head and scale drum assemblies. The scanning head has been redesigned, and offers a choice between a radial or axial cable outlet. The scanning heads have a 1-VPP interface. The scale drums are available in two versions— one that features a continuous centering collar on its inner circumference and is fastened with a frictional connection, and another that has feather-key slots to prevent unintentional rotation. These features result in a compact encoder series that offers higher accuracy than gear wheel encoders and high permissible shaft speeds.
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