50 years of parallel encoders: POSITAL remains a reliable partner in the MRO market by holding on to absolute encoders with bit-parallel interface.
Encoder-maker POSITAL remains committed to supplying customers with absolute encoders with bit parallel communications interfaces.
“Rotary encoders with parallel interfaces have been sold under the FRABA and POSITAL brands since 1972,” said Christian Fell, leader of POSITAL’s North American operations. Absolute encoders with parallel interfaces have always offered excellent dynamic response. However, the resolution of these encoders depends on the number of conductors in the connecting cable, resulting in a trade-off between resolution and cable size. As the performance of serial interfaces improved, parallel interfaces became less popular, and this interface has been dropped from many manufacturers’ catalogues. Nevertheless, with many parallel interface encoders still in service, there is a modest but steady demand for plug-compatible replacements.
Postital能够为这个低量的利基市场提供具有成本效益的产品的能力直接与其模块化设计理念和灵活的“最低订单数量：ONE”（MOQ1）制造系统有关。Fell解释说：“我们的编码器被设计为可变组件的组件。除了几个专用零件外，我们的并行界面编码器与具有串行，fieldbus或工业以太网接口的编码器具有相同的组件。只要我们可以采购必要的零件，我们将继续提供该市场。”
POSITAL absolute encoders with parallel interfaces are based on the company’s optical measurement technology and are available in single (up to 16-bit resolution) and multi-turn (up to 25-bit output) configurations. Output is managed by an embedded microcontroller so that many coding options, including Binary, Gray and excess Gray are supported. Custom codes – such as Petherick, or those used in cam or end-switch type applications, can be implemented through software, making it possible to reproduce the functional characteristics of older sensors used in long-lived applications like public transport or machine tools. Like other POSITAL encoders, these devices are available with a wide range of options for housing material, flange design and shaft configuration (including through hollow).
Filed Under:编码器•绝对
