Process automation, machine construction, and increasing the efficiency of systems or installations require highly precise equipment, and encoders are such equipment. The encoder is part of the automation system, thanks to which it is possible to determine the efficiency of various types of machines. With proper knowledge of encoder functionality and the ability to use them, it is possible to increase the company's productivity - in other words, encoders save time and money and improve results.
The Model A36R Absolute Encoder is designed for high performance in a compact mechanical package. The use of blue LED and reflective technology along with excellent shock and vibration ratings make it a highly versatile encoder. Available with bore sizes up to 10 mm and a wide selection of flexible mounting options, with BiSS C or SSI communication protocols, it is especially suited to applications where an encoder needs to retain position information after power-off scenarios.
The Model A36R absolute thru-bore encoder offers:
- Up to 22-bit single turn / 24-bit multi-turn resolution
- Thru-bore or blind hollow-bore styles.
- BiSS C and SSI communications
- 36 mm diameter housing, 25.4 mm (1.000" depth)
- Operating temperature range of -40° C to 120° C
- Optional battery/backup power interface for data retention in the absence of primary power
The A36R is compatible with the BiSS C interface. BiSS C is similar to SSI and can be used unidirectionally like SSI and stands for Bidirectional interface for Serial/Synchronous.
The open-source BiSS Interface (Bidirectional/Serial/Synchronous) protocol implements a real time interface. BiSS enables a digital, serial and secure communication between controller, sensor and actuator. The BiSS protocol is used on the lower sensor/actuator communication level in industrial applications (e.g. motor feedback, robotics) which require high-speed data transfer rates, safety, flexibility and a minimized implementation effort. In addition to its technical advantages, two conditions have established the current global standard: free BiSS license for applications and the stability and continuity of the protocol since its introduction.
Reflective Technology
The central component of the reflective technology architecture is an innovative system-on-chip optical device. This device integrates a blue LED emitter and a sensor into a single package, accompanied by a range of on-chip programmable encoder functions. This technology offers significant benefits over the traditional optical transmissive approach:
Compact Design: Unlike transmissive technology, which necessitates two separate PCB assemblies, this technology requires only a single PCB assembly. This reduction in hardware complexity and space requirements is a notable advantage.
Signal Clarity and Precision: The inclusion of a blue LED with a short wavelength in the integrated package enhances signal contrast and minimizes jitter. Furthermore, the proximity of the emitter and sensor within the same assembly significantly reduces optical crosstalk.
Versatile Position Detection: Unlike many magnetic encoders that rely on magnets positioned at the end of the encoder shaft to detect position, this technology enables off-axis position detection. This versatility allows for a wider range of mounting options, including those suitable for thru-bore style shafts.
This encoder is used in many industrial automation sectors, such as:
- Aerospace
- Material Handling
- Packaging
- Food & Beverage
- Printing
- Motor Feedback
- Registration Mark Timing
- Filling
- Conveying
- Ball Screw Positioning
- X-Y Positioning, and more…
Encoders are indispensable wherever precise measurement and supervision of speed, the direction of travel, distance travelled, and position of mechanical elements or the number of rotations performed is necessary. In any case, the encoder invariably affects the proper and efficient functioning of machines and systems. It is therefore a small investment in great profits for enterprises.
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