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Nikon releases the MAR-M700MFA, the world's first multi-turn external battery-free absolute encoder with an all-solid-state battery

Nikon releases the MAR-M700MFA, the world's first multi-turn external battery-free absolute encoder with an all-solid-state battery

Enterprise & IT Nov 20,2023 0

Nikon Corporation (Nikon) is pleased to announce the release of the MAR-M700MFA, the world's first*1 multi-turn external battery-free absolute encoder*2 to use an all-solid-state battery. An absolute encoder is a type of sensor device used commonly in industrial robots on automobile manufacturing lines, machine tools, and many other applications. Its purpose is to detect absolute values for robot-arm rotational displacement and similar measurements.

Nikon's latest absolute encoder, the MAR-M700MFA, offers an increased guaranteed operating-temperature range compared to the company's previous multi-turn external battery-free absolute encoder. This is a result of utilizing the all-solid-state battery which also allows to make this model maintenance-free. Furthermore, this model comes with new features including a predictive maintenance feature and an angular precision self-correction function, which enable an expanded range of possible usage environments for industrial robots along with improved operational consistency and greater precision in motion control.

In pursuit of becoming “A key technology solutions company in a global society where humans and machines co-create seamlessly” as Nikon laid out in their Vision 2030 Medium Term Management plan, they will continue incorporating environmentally friendly new technologies into their products while contributing toward further advancements in industrial robots.

Nikon plans to showcase their new models at iREX2023 (International Robot Exhibition 2023; November 29 to December 2, 2023, at Tokyo Big Sight).

*1Among multi-turn external battery-free absolute encoders that Nikon could confirm were on the market as of November 20, 2023
*2This type of encoder is capable of saving information on the previous stop position at the time of power shutoff, as well as multi-turn detection and rotational count data, in nonvolatile memory. Because nonvolatile rather than volatile memory is used, an external power source (from a battery or similar) is required to continuously provide power. Nikon encoders supply the necessary power using an all-solid-state battery embedded in the encoder.

Main Features
1. The MAR-M700MFA is the world's first multi-turn external battery-free absolute encoder mounted with an all-solid-state battery, offers a maximum guaranteed operating temperature of 105 degrees celsius and is maintenance-free
Nikon has eliminated the need for external battery usage by embedding within their encoder an all-solid-state battery developed by Maxell, Ltd. This has enabled Nikon to increase the maximum guaranteed operating temperature to 105°C, which offers greater freedom in motor and equipment design than ever before. Furthermore, this latest model is maintenance-free.

2. Predictive maintenance feature
A new predictive maintenance feature compatible with A-format® communication standards*3 has been incorporated into this model. This enables advance detection of precursors to breakdowns as well as advance notification of approaching part-replacement and maintenance deadlines for industrial robots, which mitigate the risk of sudden equipment stoppages due to breakdowns.

*3A-format® is a registered trademark of Nikon Corporation
3. Inclusion of a proprietary angular-precision self-correction function
The MAR-M700MFA comes equipped with a proprietary angular-precision self-correction function. It does not require the use of a reference encoder*4 and enables precision corrections to realize better operational consistency and motion-related precision.

*4A type of master encoder used to guarantee encoder precision (related to positioning information)
4. Designed with consideration for existing-model replacement compatibility
Because the MAR-M700MFA was design with consideration for compatibility when installing it as a replacement for existing Nikon absolute encoder models, there is no need for users to redesign equipment installation points where the new encoder is installed.

More information is available at https://www.nikon.com/company/news/2023/1120_encoder_01.html

Tags: Nikon
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