The "HA035" Batteryless Encoder: Engineered to Save Space and Downtime with No External Power

Learn How The "HA035" Batteryless Encoder was Developed With an Induced Voltage, a Special Magnetic Element, and a Unique Cover Structure for SANMOTION R Series Servo Motors
By: Sanyo Denki America
TORRANCE, Calif. - March 26, 2022 - PRLog -- Sanyo Denki has developed the "Model No.HA035" ("HA035") – a small, high accuracy, batteryless absolute encoder. This encoder will be utilized in applications such as; machine tools, industrial robots, and equipment such as injection molding machines that inadvertently support the world's manufacturing industry. This encoder has an absolute angular accuracy of 1 minute and a maximum resolution of 23 bits, making it higher accuracy and higher resolution than conventional models. Moreover, it also has improved environmental resistance, with a maximum working temperature of 105˚C and vibration resistance of 15 G. Despite these improvements, the "HA035" is smaller than conventional models, and can be installed on R series motors with a flange size of 40 mm or more. Commonly encoders which use magnetic elements are subjected to magnetic fields external to the device. Therefore, there needs to be a structure to block external magnetic fields. However, this structure must be arranged so as not to affect the magnetic circuit of the magnetic element. The "HA035" has a uniquely designed cover structure to protect the encoder from external magnetic fields but also fit into smaller assembly requirements. This unique shield cover structure ensures our customers can use the "HA035" with peace-of-mind, even in environments with moderate external magnetic fields.

On the "HA035" however, we succeeded in downsizing by newly adopting a batteryless system utilizing induced voltage with a special magnetic element. There are only two basic components in batteryless system configuration; a coil which is mounted on the circuit board and a magnet which is attached to the tip of the shaft. The basic principle of this system is that pulse-shaped voltage is induced from the coil to suit the magnet rotation, this pulse is detected and stored in the nonvolatile memory. The power necessary at this time is supplied from the pulse-shaped inducted voltage, therefore operation is possible without the need for an external power supply.

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Location:Torrance - California - United States
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