For users, it is important to have encoders that keep track of position even during power down conditions, while the turns counter can be maintained via a battery backup, eliminating the need for a homing sequence. CUI’s Motion Group presents a series of absolute modular encoders which can do it, the multi-turn AMT21, that offers 12 bits or 14 bits of absolute position information, and implements a 14-bit signed number turns counter for applications rotating beyond 360 degrees.
Encoders with an operating temperature range from -40 to +150 °C
Based on CUI’s patented capacitive ASIC technology, the AMT21 series is highly durable and accurate with resilience to the dirt, dust, and oil typically found in motion applications. Its high-speed RS-485 protocol for fast and low latency position data is accompanied by a low current draw of 8 mA at 5 V and a compact package with locking hub for ease of installation. Boasting accuracy of ±0.2 mechanical degrees, the AMT21 series further carries an operating temperature range from -40 to +105°C in either radial or axial orientations.
Encoders with a digital interface that can be used to set addresses for multiple encoders
The digital nature of the AMT21 series also allows users to configure the alignment via CUI’s AMT Viewpoint™ GUI or the encoder’s RS-485 protocol. Additionally, the digital interface of the AMT21 encoder can be used to set addresses for multiple encoders sharing the RS-485 bus.
