AMM8A frameless and high-resolution absolute encoder

Lika Electronic designs and manufactures a comprehensive range of standard and frameless high-resolution encoders to suit the accurate position and speed feedback requirements of multi-axis robots.

AMM8A optical and modular encoder is among the latest innovations.

• Frameless design with minimum footprint

• Multiturn & high-resolution up to 20 x 14 bits

• SSI and BiSS C-mode interfaces

• Sine Cosine additional track for speed feedback

• Designed for robotic systems, motors & OEM applications

From robots to cobots

Do you have big and heavy robots confined behind a safety fence in your mind? It's an outdated thought, forget it. A new generation of robots is succeeding: collaborative robots (cobots) are boosting the market today. Industry requires smaller, light, flexible and safe devices designed to work alongside humans on the factory floor. They afford lower cost and easy programmability by average personnel and are able to provide accurate diagnostic and maintenance information.

Encoders for robotics

Encoders for robotics from Lika Electronic are designed to meet this trend. They are compact with minimum footprint and low profile and engineered to be integrated directly into motors and narrow spaces. To perfectly fulfill the new requirements mechanical and electrical characteristics (thru-bore diameter, PCB shape and size, resolution, interface, type of connection, etc.) can be customer-specific.

AMM8A: the advantages

AMM8A emphasizes all these features.

AMM8A is an optical multiturn encoder in a small modular design.

It comes in a very compact and flat frameless package (only 25 mm / 0.984” thickness) ideally suited for installation in constricted space. This hollow shaft model offers a large internal diameter (25 mm / 0.984" through hollow bore) and enables contactless mechanics without integral bearings, thus it is unaffected by wear, friction, fatigue and mechanical stresses. The mounting and calibrating tools provided by Lika simplify the assembly process and reduce it to few seconds.

Designed for demanding motion control applications, AMM8A provides high resolution up to 20 bits singleturn (1,048,576 counts per rev.) and 16,384 revolutions (yes, up to 34 bit overall resolution!). Furthermore the real multiturn does not require any battery or counter. An additional incremental track further yields Sine Cosine 1Vpp signals for speed feedback.

Advanced monitoring functions

The communication interface includes SSI and BiSS C-mode with standard features such as zero setting / preset and counting direction. In addition to position information this encoder can output also speed information or acceleration information. Diagnostic tools are a step ahead: the supervisor executes advanced monitoring functions in order not only to show process counters and signal possible errors, but also to preventively warn about a deterioration in the performances of the encoder and the installed components (such as the LEDs or the disk).