Micro Motion Absolute

Micro Motion Absolute™ Rotary Encoders provide absolute position after powering up your system, even if motion occurred when power was off. MicroE Systems Micro Motion Absolute™ technology uses a small initial rotary movement on power-up so that your controller will know the absolute position with certainty. You can quickly restart with confidence even when sensitive, valuable workpieces are in the motion system.

Micro Motion Absolute™ Rotary Encoders acquire absolute position from their pre-programmed absolute track. By putting absolute position marks at unique locations, as soon as the motion control system passes through a small rotation, typically 4º – 7º, your controller will have the absolute position.

Position feedback is sent to the controller with BiSS or SPI high-speed serial formats using an FPGA in your controller and software that is developed collaboratively with MicroE Systems. Single and multi-axis versions of the interface are possible.

Since Micro Motion Absolute™ Rotary Encoders are based on MicroE Systems’ widely-used and proven optical encoder sensors, they have all of the benefits of their incremental encoder products:

  • High resolution, accuracy, and repeatability enables high-precision motion feedback and servo control
  • Small sensors, including models that can fit into the most compact spaces
  • PC board mount-sensors, as small as 7mm x 11mm, that can fit onto a small PC board of any shape
  • Low power consumption – low as 0.3W
  • Reliable long-life operation


Choose from the models listed below


Micro Motion Absolute™ Specifications
Mercury 1500P-MMA

– Resolution = 10,000 to 100,000 CPR using 18mm OD scale

– PC board mount

– Option for screw-mount sensor with cable

ChipEncoder CE300-MMA

– Resolution = 5,000 to 50,000 CPR using 18mm OD scale

– PC board mount – surface mount device

– Only 7mm x 11mm

Mercury II 6000-MMA

– Resolution = 5,000 to 20M CPR using 18mm OD scale

– Small, screw-mount sensor with cable

– Highest accuracy and resolution

Micro Motion Absolute Encoders