Posital Fraba

TCR-CA01B-1213-B15S-PAX IXARC Absolute Rotary Encoder

Motion control applications – ranging from factory automation to control systems for mobile machines – require precise, real-time information about the physical location of mechanical equipment. Absolute rotary encoders can provide precise and unambiguous measurements without losing track of their position due to a temporary loss of instrument power. An alternative approach is to use special "safety cerified" encoders. This type of encoder has two measurement modules installed in a single housing, sharing the same input shaft. A signal processing chip compares outputs from the two modules and – for most devices of this type – shuts down measurements and issues an alarm signal if a discrepancy is detected. Redundancy, in this case, is built into the encoder. Encoders with these characteristics can be designed to comply with Safety Integrity Level (SIL) or Performance Level (PL) standards. (See sidebar for a summary of safety standards.) An advantage of safety certified encoders is that they can simplify the development of safety-critical systems. The control system will receive either reliable position data, or a clear signal that the encoder has developed a fault. However, this approach can be inflexible when handling failure situations: if the sensors simply switch transition the machinery to a safe state. Diverse-Redundant Encoders A new type of encoder introduced by POSITAL provides a middle ground between complex duplicate encoder installations and expensive safety certified devices. Diverse-redundant encoders have two measurement modules built into a single housing, sharing a common shaft.

Manufacturer

Posital Fraba

IP classification

IP66; IP67

Accuracy

±0.1317° + 1 LSB quantization @ RT

Measuring technology

Optical + Magnetic

Housing material

Aluminium

Communication Interface

CanOpen

Resolution multiturn

12bits

Resolution Singleturn

13bits

Flange size

58mm

Electrical connection

cable; M12 connector

Supply voltage

10-30VDC

Shaft diameter

15mm

Approvals

Redundant

Sensor Approval

Redundant

Posital Fraba

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Designs and markets sensors for motion control and safety assurance systems. Products include rotary encoders, inclinometers, linear position sensors and a large variety of accessories. These products are used in a wide range of settings, from manufacturing to mining, agriculture to energy.

https://www.posital.com/en/