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AEAT-9000-1GSH0 Ultra-Precision 17-Bit Absolute Encoder
The Avago Technologies AEAT-9000 series are high resolution single turn optical absolute encoders. They are designed to allow design engineers to achieve superior positioning performance in terms of speed and accuracy performance. The modular package enables the encoder to be directly integrated to the motor unlike conventional encoders. As a result design engineers can expect cost savings and better performance of the overall system. The AEAT-9000 series addresses key motor qualities such as position accuracy, speed stability, and bandwidth which determine command-signal response, disturbance rejection capability, power loss, size, and quietness. They are capable of the industry’s best accuracy for an absolute encoder. The AEAT-9000 is a modular absolute encoder that consists of a read head module and a high-precision code disc. The modular design allows for better flexibility to system designers to easily design-in the encoder feedback system.
Features
17-bit absolute single turn output (131072 absolute positions over 360°)
2 channel true differential Sine/Cosine outputs with 2048 cycles per revolution
2048 CPR A/B channel incremental analog output
Interface output will be SSI (2wire SSI / 3wire SSI) with RS485 line transceiver or single ended option
On-chip interpolation and code correction compensate for mounting tolerance
Selectable direction for Up/Down position counter
Electrical alignment output for tilt and locate
Built-in monitor track for monitoring of LED light level
Error output for LED degradation
-40 to 115°C operating temperature
Applications
Rotary applications up to 17 bits/360° absolute position
Integration into servo motors
Industrial and maritime valve control
High precision test and measurement machines
Industrial and factory automation equipment
Textile, woodworking & packaging machineries
Nacelle & blades control in wind turbine
Benefits
Feedback device generates unique binary 'word' for each encoder shaft position
Provides positional information instantly upon power up
Ideal for space constrained applications
Avago’s single turn encoders provide unique positional information for each shaft location. This location is independent from all other locations. In an absolute single turn encoders application, there are several tracks with common centers, and single light sources. As the light passes through the slots on the moving tracks, it creates shadows at intervals. Where a shadow is detected, a low state (0) is created. When the light successfully penetrates the slot a high state (1) is created. The position of the shaft is detected by reading the pattern of 1’s and 0’s. For higher resolution single turn encoders, incremental tracks are added. These tracks enable the interpolation of signals. Avago’s single turn encoders provide high accuracy read-out for applications which require precise positional information. In addition, these single turn encoders’ use of the SSI non-proprietary serial communication protocol means that these single turn encoders can match most applications’ output requirements. Avago's absolute single turn encoders come in a 13-bit and 16-bit resolution package to cater to the needs of a range of applications in the factory and industrial automation industry such as robotic arms, valve controls, test and measurement equipment, etc.