The OCD optical encoders are based on a single turn sensor that features a highly Opto-ASIC, which offers a resolution of up to 16 bit per revolution. In addition, a maximum of 14 bit (16384 revolutions) can also be measured by a gear in multi-turn variants. Featuring a code disc built from dimensionally stable, break-proof plastics provides outstanding precision, dynamics and resolution.

Posital’s encoders comply with rigid electromagnetic compatibility requirements, as they feature protective circuits for interface connection and power supply. This enables the encoders to provide reliable operation even under harsh conditions. The encoders’ interface design has been extended to include TTL levels for the data outputs. Seamlessly combined with a vast input voltage range, common for the automation industry, the interface design covers almost all possible applications.

The encoders also feature a push/pull technology that allows it to be connected to standard I/O components from different controller manufacturers. Compatible with open collector variants, the robust encoders offer a protection class of up to IP66.

With suitable couplings or gear wheels, the encoders can be directly integrated into plants and machines. The encoders’ control unit enables users to set its position as well as the preferred zero position in the machine.

Motion Control Tips

NUMERIK JENA’s non-magnetic LIK linear series has a 20 micron graduation on glass and digital versions can output resolutions to 50 nanometers, where the digitizing electronics reside in the connector. With loose mounting tolerances of the scanning unit in relation to the 20 micron scale, and three configurations of mounting the scanning unit, the LIK series provides excellent motion feedback for high magnetic environments.

The RIK rotary series is a kit-style bearingless rotary encoder including a disk with various diameters and line counts, and non-magnetic scanning units to match those diameters.  The various sized aluminum disks containing a 20 micron graduation are epoxied to the customer’s hub design. NUMERIK JENA can also adhere the disks to custom hub designs at the factory with exact specifications and lowest runout errors.

Both encoder systems use the Epiflex Adjustment Tool to enhance the signal margin during installation on the machine. Long cable extensions are also possible for high magnetic field environments.

For more information, visit www.numerikjena.de.

Motion Control Tips

Baumer HS35 encoders feature ultra-precise optical scanning system that provides unrivaled positioning with 60 arcsecond accuracy. They are also available in IP67, square wave and sine wave versions.

Offered for shaft diameters from 0.5 inches to 1.0 inches, the encoders can be customized through shaft insert adapters. The isolation shaft inserts offers electrical isolation from voltages of up to 2.5 kv, effectively preventing wear and corrosion. The ShaftLock system of the encoders features large diameter between ABEC5 bearings, allowing the shaft to endure high mechanical loads at up to 5000 rpm speed and 60 arcsecond accuracy.

The HS35 encoders’ robust design includes wall structures and extra durable castings that can withstand prolonged exposure to harsh environments. Lubricants, dual seals and a heavy duty powder coating on the bearing cover and housing protect the encoders from corrosion, enabling operation in almost all types of environmental conditions. In addition, the IP 67’s high performance impermeability seals protect the encoders from high pressure wash down.

Offering fully-programmable index, resolution and outputs, the HS35P allows customization and minimizes encoder inventories. Using user-friendly software, the encoder can be directly programmed through the supply line.

Baumer HS35 encoders are specifically developed to withstand extreme mechanical strain, making it ideally suited for motor and drive control in various heavy duty applications including wind power, oil and gas processing, metalworking, food and beverage processing, printing, material handling, packaging, wood/lumber processing, textile processing and solar/PV module manufacturing.

Motion Control Tips

With a very compact design, the encoder measures only 50 mm in diameter and 20 mm deep. This makes the encoder easy to fit into tight areas where installation space is limited. In addition, its large through-hollow shaft eliminates the need for additional space at the shaft end, while enabling installation anywhere on the motor shaft.

The new series completes the company’s HDmag encoder portfolio, which excels through absolute reliability, non-contact magnetic sensing and maximum availability. MHAD absolute encoder unites high-precision incremental and absolute signals in a single device. Its additional incremental signal of up to 8192 steps per turn offers speed feedback while its current position will be output as absolute value with 16-bit resolution. The air gap and the large permissible tolerances on axial and radial tolerances allow for quick and safe installation of the encoder. Its LED serves as an installation aide as well as an activity indicator.

In its standard configurations the encoder offers IP67 protection, enabling it to withstand operating temperatures ranging from -40°C to +85°C. The encoder’s magnetic sensing technique and robust design delivers dependable operation not only in humidity and dust but also during severe vibration and shock.

Motion Control Tips

The S2E’s basic design consists of a non-contact sensor head and a magnetically-encoded ring — an assembly that can easily installed by users. Offering a quadrature output of up to 46,000 pulses per revolution, the assembly features a mounting hub that enables the magnetic ring to be adapted to various applications.

Balluf’s S2E provides a PLC the position information required for most conveyor-based manufacturing operational functions like multiple station error proofing with single station rejection. The position information provided by the new rotary encoder can also be utilized by the main programmable logic controller to develop programmable cams that are software driven.

It also provides accurate angle measurement for virtually all apparatus revolving around a shaft. The S2E, for instance, can be fitted on a miter saw’s spindle. An output signal can be transmitted to a digital display to provide the operator an accurate visual representation of the saw blade’s angular position.

The S2E also offers accurate monitoring and control of any rotating shaft, including a motor or any rotating equipment. Thus, rotational positions of solar reflectors can be monitored easily by the S2E, with its index pulse utilized to set home position.

Balluf’s new rotary encoder is IP67 rated, which implies that it can withstand outdoor environments.

Motion Control Tips

This rotary encoder can be operated directly in Zone 1 and Division 1 work environments where ignitable concentrations of flammable liquids vapors or gases are likely to exist in normal operating conditions.

The reliable and rugged rotary encoder eliminates the need for an accompanying Intrinsic Safety barrier, effectively simplifying installation. This also results to a more streamlined feedback system for the explosion proof environments.

Utilizing the explosion proof construction method, the HS52 rotary encoder is fitted in an enclosure that has the capability to contain and withstand even the most volatile gas-to-air mixture internal explosion.

The rotary encoder is equipped with a flexible shaft bore design, allowing it to be rigidly mounted to prevent stress to encoder bearings. The design also provides a more secure attachment to the hazardous area conduit fittings.

In addition, the encoder’s compact hollow shaft design provides engineers space-saving advantages not otherwise found in traditional shafted encoders. As ideal position sensing solution for oil and gas industries, the HS52 is also suitable for use in spray painting applications, solvent refining operations and other explosive environments where operating conditions are extreme and space is a premium.

Motion Control Tips

The output signals of an incremental encoder only have information on relative position not absolute position like an absolute encoder. In order for the encoder to provide any useful position information, the position of the encoder has to be referenced in some way, traditionally using an index pulse. So the incremental encoder sends incremental position changes to electronic circuits that perform the counting function.

On start-up, the encoder will home in on a known, fixed position, which serves as a fixed reference point going forward. This fixed position can be either fixed by a magnetic point or strip of mechanically by a limit switch.

One traditional limitation of an incremental encoder is that the number of pulses counted is stored in an external or buffer counter which can be lost if there is an interruption of power. For instance, if a machine with an encoder is turned off, the encoder will not know its position when switched on again. The encoder has to perform a homing routing in order to know its exact position, forcing the motor to move until a home limit switch is activated. Then, a counter or buffer will be zeroed and the system will determine where it is relative to fixed positional points. One way around this issue of loss of power is to use a battery backup system. Such a solution ensures that the memory is backed up and can store the count information and provide an absolute count once power is restored.

Standard Quadrature A and B signals used in incremental encoders are shown in the graph above. Electronic circuitry interprets the raw data to determine position as well as the direction of rotation.

Motion Control Tips

Absolute encoders can be either single-turn or multi-turn. Single-turn encoders are well suited to short travel motion control applications where position verification is needed within a single turn of the encoder shaft. Multi-turn encoders, on the other hand, are better for applications that involve complex or lengthy positioning requirements.

Absolute encoders have a number of advantages. First is the non-volatility of memory. An absolute encoder works as a non-volatile position verification device. True position is not lost if power is lost or the system moves while power is switched off. A continuous reading of position is not needed. This is specifically useful in those applications, such as satellite-tracking antennas, where position verification is key.

Absolute encoders also provide programming flexibility. By removing the need for system homing, the encoders can be controlled to give positioning programs based on setting up reference from point-to-point, rather than from a home position. Additionally, a microprocessor interface module allows for programming various operating parameters, such as resolution.

Safety is another benefit. In some applications where a loss of position could lead to operator injury or machine damage, an absolute encoder automatically provides position verification when the power is switched on.

Absolute encoders also have good immunity to electrical noise. The device determines position by frequently reading a coded signal. Stray pulses from electrical noise will not build up and accurate position is presented again on the next reading.

Motion Control Tips

Featuring excellent accuracy, adaptability and reliability, the new devices are offered with digital or analog electrical interfaces. With measurement technology based on a Hall-effect sensor and a rotating magnet, the analog models make a great alternative for traditional potentiometers as it provides superior longevity, reliability and accuracy.

Unlike potentiometers, these new encoders do not run the risk of losing accuracy due to surface contamination or wear since there is no contact among its components. The encoders also offer flexible range-setting feature that allows the installer to “teach” the device the potential mechanical motion’s limits during operations. When the limits have been established, the device will instantly self-calibrate to enable the full range of electrical output to exactly match the mechanical movement’s full range.

This results to a remarkable improvement on the control system’s overall accuracy. To simplify the setup, the analog-output models also provide LEDs and buttons on its casing.

The MCD encoders’ digital outputs include CANopen, serial (SSI) and DeviceNet. These tough MCD encoders feature heavy-duty enclosures to protect the measurement components from dust, shock and vibration, as well as mechanical loads and moisture (up to IP 69K ratings). The hollow-shaft models also feature permanently lubricated brass and steel gear-set for a trouble-free and long service life.

Motion Control Tips

Available in a modular package, this high-resolution absolute optical encoder can be mounted in space-limited locations with several mounting requirements, effectively shortening assembly time and simplifying design.

The AEAT-9000 single-turn encoder provides a maximum of 17-bit resolution for accurate angle measurement in a full rotation of 360 degrees. The modular design of the encoder consists of a high-precision code disc and a read head module. Unlike traditional encoders, the AEAT-9000’s modular package allows it to be integrated directly on the motor, offering better overall performance and system cost savings. The absolute encoder leverages differential external and internal signal paths as it provides optimum noise cancellation for industrial environment’s robust system noise-immunity. This makes it suitable for factory automation equipment, high-precision test and measurement equipment, industrial and maritime valve control applications, servo motors and more.

With 2048 counts per rotation, the new AEAT-9000 absolute encoder offers precise positioning with two-channel true differential Sine/Cosine outputs as well as A/B incremental analog outputs. Its multiple output configurations provide flexibility to support both incremental and absolute position information. The encoder also comes with photo detectors for electrical alignment on the tilt and radial.

Additional features of the AEAT-9000 encoder includes on-chip interpolation and code correction that compensate for mounting tolerance, an integrated monitor track for monitoring LED light level and a selectable direction for Up/Down position counters.

Motion Control Tips

Built for maximum uptime and make readies, the M3 Rotary Cutter is designed with a new anvil pin cylinder that features a push-through pin system and a positive bottom seating. This helps the pins from sinking whenever the rotary cutter is in use.

Featuring soft-cut heavy blade blocks and soft-cut die rule blocks, the M3 Rotary Cutter also provides more accurate and faster knife positioning. Aside from keeping the knife in its proper position when finding the knife block in the cylinder, the knife locating bar also delivers shorter make readies.

To strip away the non-print gap, the M3 Rotary Encoder features a new stripper finger system that utilizes a tool-less system to set the locating bar. This allows the locating bar to effortlessly and quickly line up the stripping pins.

Its integrated Siemens SIMOTION drive and controls ensures that the rotary cutter offers extreme accuracy and reliability.

The M3 Rotary Cutter, which will be presented at the Graph Expo, will be fitted with the XTC Delivery Table, which offers a great return on investments with its fewer jams, increased speeds and easier operation. Effective at handling coated covers and lighter basis weight papers, the new mechanical design and the new servo technology deliver reduced make-ready time as well as start-up waste. The delivery’s independent drive from the cutter allows various on-the-run adjustments that were not offered in mechanically driven systems.

Motion Control Tips

The new AH36M rotary encoder comes with two external inputs that allow it to be set to the preferred measurement range in just a few simple steps. This provides users the complete signal amplitude (from 0 to 10 V or four to 20 mA) across the exact measurement range that the user has selected. Whether the user wants to measure two, 10 or 100 revolutions, this new rotary encoder provides the best solution for the job, as it eliminates the need to stock encoders with various measurement ranges or gear ratios.

Using battery-free multi turn and non-wearing technology, the cost-effective rotary encoder completes the chosen measurement range in 4096 steps or 12 bits. Specifically designed for high loads, the AH36M rotary encoder features twin ball bearings.

Its battery-free multi turn technology and non-wearing magnetic measurement principle makes it suitable for positioning tasks in mechanically challenging work environments. Measuring 36.5 mm in diameter, the rotary encoder’s compact construction makes it ideally suited for use in applications with limited space. Although it comes in a compact design, the new AH36M rotary encoder still features a six mm hollow shaft.

Motion Control Tips

Using Baumer’s patent-pending HDMag MSGP sensor technology, the series consists of a magnetic encoder attached using flexible magnetic tape. The customized tape can be easily buckled onto the drive or generator shaft, just like a belt. With the help of the welded fastener, the tape is tightened on the shaft and can be quickly exchanged when required. The narrow read-head incorporates an integrated dual sensor head that is mounted to a frame over the flexible tape. This takes up minimal space on the shaft and operates without interruption over the fastening gap in the tape ends, and has no effect on the encoder output signal.

The unit can be installed and removed repeatedly without affecting performance, and offers wear-free speed and position feedback with a nearly unlimited service life.

For uninterrupted sensing across the fastening gap, the flexible magnetic tape encoder features an integrated dual sensor head and a signal processing unit (patent pending). The large permissible tolerances on axial displacement (+/- 5 mm) and air gap (up to 3 mm) ease alignment of the sensor head and also ensure  reliable detection unaffected by mechanical backlash and vibrations. The fully encapsulated electronics integrated in the sensor head are protected against soiling, shocks and vibrations. The integrated FPGA-based signal processing allows for high angular resolutions, better than 0.003°, more than 100,000 ppr, and will remain unaffected by thermal shaft expansion.

For more information on Baumer’s HDMag line, visit www.baumer.com.

Motion Control Tips

Delivering robust performance required by applications in harsh environments, the new encoder is suitable for motor feedback and valve control, robotics, contactless rotary position sensing and medical applications. With magnetic technology for sensing activities and motion control, the encoder eliminates mechanical wear and tear as it provides a non-contact operation. Seamlessly combining built-in Hall elements, digital signal processing and analog front end in one device, the new encoder also offers an integrated programmability that permits personalized encoder settings and remarkable savings.

“The Avago AEAT-6600-T16 encoder delivers leading precision for motion control systems with highly durable magnetic technology in a small form factor, building on our industry leadership in high-resolution magnetic reflective encoders,” remarked Hassan Hussain, General Manager of the Motion Control Products Division at Avago.

“The device expands the reach of our complete optical and magnetic encoder portfolio, addressing applications operating in severe industrial conditions.”

Providing an easy one-step alignment that requires no calibration, the AEAT-6600-T16 device effectively reduces assembly costs and time, while avoiding handling-related concerns during set-up. It also reduces issues relevant to assembly tolerance errors in manufacturing process by delivering accurate performance over a large radial displacement and axial gap. The device delivers a serial output that enables it to reduce the number of wires needed. Offered in a compact 16-pin TSSOP package, the encoder comes with a low supply voltage making it suitable for portable, battery-operated applications.

Motion Control Tips

With thermal shutdown and integrated current limiting features, the new quad differential line drivers offers industrial sensor and encoder interfaces, servo drive applications and industrial programmable logic controllers protection against shorts to ensure exceedingly reliable operation in hazardous environments.

The line drivers are developed to conform to encoder application’s current industrial standards. They provide robust operating temperature that range between -55 deg and 125 deg C for the AEIC-7273 and AEIC-7272 devices, while the AEIC-2631’s operating temperature range between -40 deg and 125 deg C. Offered in SOIC packaging, the new line drivers feature high-resistance buffered inputs with hysteresis to deliver strong noise margin in an otherwise noisy industrial control areas.

“These new high-performance line drivers improve drivability and assurance of power supply, with the durability required for rigorous industrial environments,” Avago’s Motion Control Products Division General Manager, Hassan Hussain said.

“Avago can now serve as a one-stop shop for complete encoder solutions, providing customers the best possible value by offering the line drivers with our market-leading portfolio of motion control encoders and decoders for industrial automation applications.”

The thermal shutdown feature of the new line drivers is achieved by monitoring and comparing junction temperature with a band gap reference on-chip. Both AEIC-2631 and AEIC-7272 feature Tri-State outputs, while the AEIC-7273 comes with NPN Open-Collector outputs.

Motion Control Tips

Utilizing the synchronous serial interface (SSI) standard, the new interface relays absolute rotary position information to the PLC. While the shaft is rotating at a maximum speed of 16,384 pulses per rotation, the encoder also sends a series of electronic pulses. An optional index pulse can also be transmitted once every complete rotation.

Meanwhile, the incremental pulses can be transmitted via a push/pull connection or over an RS-422/485 link. Responding to a request from the controller, the dual-personality encoders offer access to absolute rotary position information while accurately measuring the rotational velocity in real-time and making it suitable for monitoring rotating machinery or for motor control applications.

These encoders also offers other new features such as optimized diagnostic reporting through the SSI connection or through case-mounted LED’s, and an optional case-mounted push-button that enables the operator to re-set the absolute position readout’s zero-position (datum).

The new OCD encoders keeps the previous generation devices’ best features, including accuracy, highly effective shaft and connection seals (up to IP66 protection), precision (up to 216 steps per turn) and single- or multi-turn capabilities. Available in hollow, solid and hub shaft variants, the units can be supplied with a cable exit or a connector.

Motion Control Tips

The AMT303LD generates position information using CUI’s patented, capacitive code generation system coupled with a proprietary ASIC.  This technology is immune to environmental particulates and magnetic interference, creating a reliable, economical and stable control and positioning solution.  The encoder consumes a maximum 10 mA at 5 Vdc, making it ideal for any application where power consumption is a concern.

Commutation zero position may be set by the demo board, OTZ module or ground trigger, removing the need for time consuming mechanical alignment in the mounting process. The available AMT303LD Demo Kit includes an AMT303LD encoder, demo board, interface cables, documentation software and power supply.

CUI Inc
http://www.amtencoder.com/Product/AMT303

Motion Control Tips

Featuring an Ertec200-based platform, the improved encoders delivers cycle times as low as 10 ms (RT) and 1 ms (IRT). With a diameter of just 58 mm, the compact devices are parameterized through the control system while a GSDML device file facilitates its configuration.

Aside from eliminating the need for connection cap, the new encoders do not require switches or terminating resistors for address allocation. Since it is shorter than most Industrial Ethernet encoders offered in the market, the new encoders can be utilized in various applications that require limited installation space. The encoders are available in two options — the solid shaft version or the hollow version.

To record position value, the PROFINET I/O models employs a proven opto-electronic scanning method similar to those used in OPTOCODE encoders. In single-turn mode, the sensor delivers a resolution of 16 bit per revolution, while the multi-turn sensor achieves a maximum revolution of 16.384 (14 bit).

The new encoders are ideal for use in applications in packaging technology, automotive body construction and standard machine construction. The retention of the device profile management allows easy migration from the current Profibus systems to the new standard.

Specifically designed for temperature ranging from -40°C to +85°C, the units provide the side of the housing IP67 protection, while the shaft side is also provided with IP64 protection.

Motion Control Tips

Sensor products utilized in these industries requires specific sealing and housing techniques to protect them from the prevailing adverse conditions. The encoders employed must withstand aggressive media and lubricants, salty air, oils and cleaning agents.

The company’s all-encompassing encoder portfolio comprises absolute and incremental encoders that feature robust stainless steel housings and are specifically developed for operation under extreme conditions. The compact encoders are offered with common housing, as hollow or solid shaft designs and provide IP69K and IP68 protection. Baumer also offers ATEX-certified variants, which are suitable for applications in potentially explosive environments. The encoders deliver the highest degree of flexibility enabling it to seamlessly integrate into automation systems. Customers can select between fieldbus, SSI and Ethernet interfaces such as DeviceNet, CANopen, EtherNet/IP, EtherCAT, Profibus, SAEJ1939, POWERLINK or PROFINET.

One of the highlights of Baumer’s portfolio of stainless steel encoder is the absolute multiturn encoder series “MAGRES hermetic”, which features hermetically encapsulated sensing and electronics. Aside from providing IP69K and IP68 protection, the encoders are also impermeable to fluids. The absolute encoder GE404 comes with optical sensing fitted in robust V4-A stainless steel design, which is compliant to class 1.4435 or class 1.4404. With Viton seals that are ultra-resistant against high temperature and chemicals, the encoders also feature a high 12-bit multiturn and 14-bit singleturn resolution for ultra-accurate position feedback even at speeds of up to 10,000 rpm.

Motion Control Tips

A series of non-contact, infrared probes offer operator-assisted visual notification through a laser stripe showing the measured area. A tube or wire allows operators to view acquired data points during the inspection process. The probes can be interchanged with traditional ball probes without requiring for re-calibration and presenting true plug-and-play capability. Flanges, bosses, brackets or other geometric features can now be integrated in the measurement routine. Aside from saving time, its no re-calibration feature also offers the field an extra layer of error proofing. ROMER’s legacy systems enables measurement of the most versatile wires or tubes with diameters ranging between 4 mm to 130 mm, without risk of deflection.

In summing up the latest tube inspection line of ROMER, Zvonimir Kotnik, Director of the Business Management group of Hexagon Metrology, Inc., said, “The straightforward operation of the overall system guarantees simple, flawless operation. By making the measurement process easier for the operator, we have improved efficiency, accuracy, and productivity for the entire tube shop”.

Based on the patented ROMER Absolute Arm portable CMM, the system’s proprietary absolute encoders are fitted in the arm’s primary axes, enabling the arm to know the exact position of its joints and effectively eliminating antiquated homing procedures. To stabilize its weight for effortless control above and below its centerline and for one-handed operation, the articulating arm comes with low profile, Zero-G counterbalance.

Motion Control Tips

Featuring internal electronics that are resistant to condensation and contamination, the new A3M is ideal for use in outdoor applications and harsh environment. Based on the design of magnetic technology that utilizes few moving parts, the new encoder’s advance versions can communicate through the DP V2, wherein Profibus can be directly used by motion control applications instead of a secondary motion control bus.

The new encoder’s conformal coating for resistance against a high IP rating and condensation makes it suitable for outdoor applications such as cranes and outdoor warehousing systems. The advanced models of the A3M60, which provides the DP V2 protocol, can be utilized in motion control applications where fast cycle times and speed are very important.

Aside from bag forming, palletizers, labeling, filling, sealing, and folding machines, the A3M60 can also be used in collision avoidance and position control applications. Other typical applications where the new encoder can be used include AGVs, assembly machine, welding and paint spraying robots.

The A3M60 is also suitable for the various needs of general manufacturing applications where a Profibus fieldbus network is utilized.

Motion Control Tips

Resolute was designed to deliver sub-micron accuracy and resolution to one nm. A true absolute encoder, Resolute automatically determines absolute position upon switching on, effectively eliminating the need for reference returns or battery backup.

The new absolute encoder utilizes a detection method that is similar to an ultra-high-speed digital camera reading from a fine-pitch, non-repeating barcode scale.

Users can easily capture images, analyze and interpolate them to fine resolutions of up to one nm, even when operating at a maximum speed of 100 m/sec.

With immunity from contamination, this technique achieves broader setup and running tolerances attributed to the absolute encoder’s dirt-rejection and cross-checking capability.

Renishaw guarantees safety since the absolute encoder has been integrated with separate checking algorithm, which regularly monitors position and ensures problems are flagged up before reaching the controller.

To provide users with remarkably higher-fidelity encoder feedback, Resolute offers a harmonious mixture of scale technology and high-performance redhead.

With Sub-Divisional Error (SDE) controlled to within +/-40 nm, the dynamic response of the absolute encoder is optimized. As standard on RELA Invar scales, Resolute offers overall accuracy that is better than +/-1 um, while high accuracy at lengths up to five m is offered on RSLA stainless-steel scales.

RTLA-S and RTLA rugged steel tape scales, which offer +/-5 um/m accuracy, quicker and easier installation as well as lengths up to 10 m, are also available.

Motion Control Tips

The new interface enables one cable to carry both encoder signal and power. Motors now require a single connector only, which significantly reduces costs and cabling time.

For safe speed and position functions, the Hiperface DSL encoder interface has been specifically designed to be the only interface that supports encoders to SIL3 levels.

Using two or four wires within a motor’s power cable, digital sensor data can be transmitted on a maximum distance of 100 m. Although commonly used for motor winding temperature sensors, the twisted-wire pair wires can now be utilized for digital communications. Encoders compatible with the new protocol are provided with an optional input which digitize temperature signals and transmit them directly to the drive containing the encoder data.

Standard cables can be used when transmitting data at a distance of up to 20 m. For longer distances, the cables must conform to specified impedance criteria.

Offering a transmission rate of 9.216 Mbd, the new interface conforms with RS-485 criteria. It transmits data in a short span of 12.15 μs, or five times faster than the fastest drives.

“The combination of improved speed regulation and functionality with greater operator safety, and at a reduced cost, marks a significant step forward,” said Darren Pratt, encoder specialist at Sick UK.

“Hiperface DSL is set to be the new standard for high- to low-performance applications.”

The new encoders can also be used to log speed, temperature and rotation data for maintenance purposes. Hiperface DSL can also include other sensor information — such as vibration, acceleration and torque — to offer optimized dynamic control.

Motion Control Tips

Avago’s latest encoder is ideal for various applications, including miniature motors, closed-loop stepper motors, copiers, printers, insulin pumps, card readers, and other kinds of consumer, industrial and medical equipment since it provides a built-in interpolation for high-resolution measurement.

For direct sensing, a typical reflective encoder module offers two digital output channels and requires another module for indexing purposes. It needs an external interpolation device for motion feedback applications that requires high-resolution measurement.

Meanwhile, the AEDR-850x reflective encoder has integrated the three channels, photodetecting and interpolator circuitry and an LED light source in a single compact package with a 3.95 mm x 3.40 mm footprint. The encoder delivers high resolution encoding of 304 lines per inch. Its highly-integrated modules allow a new level of miniaturization for applications where space and size are the primary concerns.

“The integrated third-channel, compact size and high-resolution encoding performance of the Avago AEDR-850x modules is truly revolutionary, enabling smaller motor encoding systems than ever before possible,” said Hassan Hussain, General Manager at Avago’s Motion Control Products Division.

“These innovative modules cut design costs and save PCB board space for our customers, and expand the reach of our reflective encoder offerings into the industrial automation and medical segments.”

Aside from providing interpolation of up to 4x, the AEDR-850x encoders also enable several resolution designs by altering the codewheel size. Unlike some devices with Hall Effect, the optical-based modules of the encoders are less susceptible to EMI. Offering a fixed operating temperature range of -20°C to 85°C, the robust encoders are ideal for industrial and commercial operation environments.

Motion Control Tips

Fully enclosed and extremely compact, the incremental encoder includes both full signal processing and analog detection circuitry from a single chip while using solid state technology. For excellent position feedback in critical applications such as analysis devices, medical equipment and robotics, the 64-line incremental magnetic encoder must be used together with the Haydon can stack linear actuator.

The quadrature encoder system uses a high energy neodymium magnet and offers an eight bit digital resolution that results to a total output of 256 pulses per revolution. For every complete shaft rotation, the encoder delivers a 90 degree phase shifted A/B output channels together with one index pulse. At an angular position, the encoder circuitry delivers 10,000 samples per second.

The 256 pulse incremental magnetic encoder is virtually immune to shock, vibration, contaminants and dust. It is also a great alternative for optical encoders. It can be operated using either a 5V or 3.3V input voltage. It produces a compact, robust linear motion package when combines with Haydon 25000 series linear actuator.

The Haydon 25000 Series’ performance is “second to none” compared to actuators of the same size. Improvements include custom engineered polymers, high energy neodymium magnets, optimized stator tooth geometry, and larger ball bearings for better rotor support and axial loading.

Motion Control Tips

The HS35 encoders are available for shaft diameters from 0.5 to 1.0 in. and can be customized further via shaft insert adapters. These isolation shaft inserts provide electrical isolation against voltages up to 2.5kV, preventing bearing corrosion and wear. The encoder’s ShaftLock system with its large diameter between ABEC5 bearings allows the shaft to reliably endure high mechanical loads even at speeds up to 5,000 rpm and 60 arcseconds or better accuracy.

The heavy-duty design of the HS35 encoders includes extra durable castings and wall structures that withstand long-term exposure to harsh environments. Dual seals, lubricants and a durable powder coating on the bearing housing and cover effectively protect against corrosion and allow operation in nearly all environmental conditions. In IP67 versions, high-performance impermeability seals protect against high-pressure wash down. Tether mounting allows for easy installation.

The HS35P offers fully programmable resolution, index, and outputs, allowing customization and minimizing encoder inventories. The resolution is PC programmable to between 1 and 8,192 ppr in increments of one. Zero pulse position/width, HTL/TTL outputs and rotational direction are also programmable. The encoder can be programmed directly via the supply line using the user-friendly software.

Designed to endure extreme mechanical strain, Baumer HS35 encoders are ideal for motor and drive control in a range of heavy duty applications including oil and gas processing, wind power, food and beverage processing, metalworking, printing, packaging, material handling, solar/PV module manufacturing, textile processing, wood/lumber processing, and heavy equipment such as cranes, hoists, elevators, and service vehicles.

For more information on Baumer’s HS35 hollow shaft incremental encoders, visit www.baumer.com/hs35.

www.baumer.com

Motion Control Tips

RESOLUTE’s high performance is the result of a unique method of operation. Think of the readhead as an ultra-fast miniature digital camera, taking photos of a scale that consists of a long, non-repeating bar code. RESOLUTE analyzes these photos to determine position with extremely low noise (jitter) and SDE (Sub-Divisional Error). This increases encoder feedback fidelity and ensures smoother velocity control and positional stability.

Using a unique single-track optical scale, RESOLUTE acquires absolute position immediately upon switch-on, without battery back-up, simplifying machine design by completely eliminating the need for reference returns. The system’s ruggedness, ultra-high speed capability and exceptional resolution make it ideal for high-performance lathes, as well as slower-moving axes requiring the highest levels of precision and motion control integrity.

To learn more, visit:

http://www.renishaw.com/en/resolute-absolute-optical-linear-and-absolute-optical-rotary-angle-encoder-system–10852

www.renishaw.com

Motion Control Tips

Expanding on the established ExI 13xx and ExI 11xx series, the HEIDENHAIN ECI 119 is a single turn, absolute encoder offering 524288 (19 bit) positions per revolution, and provides ±90” system accuracy.

The ECI 119 is a bearingless design, eliminating problems with bearing wear or loading, and concerns of mechanical self-heating of the encoder and shaft currents. If all the mounting tolerances are met, the encoder requires virtually no maintenance outside of contamination protection.

The ECI 119 uses HEIDENHAIN’s EnDat serial data interface. Two types of output are offered:  purely serial data (EnDat21) or serial data with 1 Vpp incremental signals (EnDat 01). The SSI interface can also be implemented, but requires a minimum value order. Not only does EnDat allow the user to transfer incremental and absolute position data, it also enables online diagnostics.

A new version of the Adjusting and Testing Software is available with the ECI 119. This software allows diagnostic checks of the encoder position signals. And the new ExI Mounting Wizard allows the scanning gap and signal amplitude to be checked in order to assess mounting quality.

www.heidenhain.us

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VARAN Bus is a robust Ethernet-based industrial network protocol based on IEEE 802.3 100TX Standard Ethernet technology. VARAN Bus offers additional benefits over standard Ethernet including enhanced resistance against disruption, fast bus speed operating in “hard real-time”, with bus cycle times less than 100µs, and low jitter below 100ns, all of which lead to extremely high data integrity.

For more information on the Micropulse AT with VARAN Bus interface, visit www.balluff.com/AT

To learn more about the VARAN Bus real time industrial network protocol, visit http://www.varan-bus.net/index_en.htm.

www.balluff.com

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“The provision of an LED illuminated shaft provides integrated indication to simplify and reduce the cost of control panels by eliminating the need to fit a separate LED indicator. Our experience of manufacturing control knobs in-house puts us in a unique position to provide a range of matching translucent control knobs for our own and other suppliers illuminated rotary encoders.” Says Cliff Electronics General Manager John Hall

The rotary encoder range provides an output of 24 pulse / 24 clicks and features a 24mm shaft with ‘flats’ of 15/17.5/20/25/30mm available. Switch contacts are rated at 5VDC/0.5mA and the operating temperature range is -40° to +85° making them ideal for audio, broadcast, industrial control, medical and telecoms equipment and many types of portable devices.

Cliff Electronics
www.cliffusa.com

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Balluff’s S2E

• Provides accurate velocity and position tracking of virtually any rotary movement to monitor continuous and/or oscillating rotary shaft motion.
• Converts rotary motion into linear measurement to provide compact linear positioning information.
• Provides continuous feedback allowing PLC-directed set points and electronic cams to be established to make the operation of the host machine more flexible.

Conveyor Applications
The S2E gives a PLC the position information necessary for virtually all conveyor-based manufacturing operational functions such as multiple station error proofing with single station rejection. It also provides conveyor speed control monitoring. Position information provided by the S2E can also be used by the central PLC to develop software driven programmable cams.

Angle Control and Adjustment
The S2E provides accurate angle measurement for any apparatus that revolves around a shaft. For example, the S2E can be mounted on the spindle of a miter saw. An output signal can be sent to a digital display to give the operator an accurate visual indication of the angular position of the saw blade.

Speed Control and Monitoring
The S2E provides accurate control and monitoring of any rotating shaft such as a motor or any rotating equipment. For example, rotational positions of solar reflectors can easily be monitored by the S2E. An index pulse can be used to set home position (due East, for example). Balluff’s rotary encoder has an IP67 rating, which means it can easily withstand outdoor environments.

Balluff
www.balluff.com

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With the optional feature of patent-pending Combitronic technology, more than 100 SmartMotor servos can be linked over CAN to create what the programmer experiences as one giant multi-axis controller.  Combitronic allows any SmartMotor to read from, write to, and control any other SmartMotor to ensure the highest dependability and no data collision or loss.  One program can be written in one motor to control ALL, or each motor can have its own program, sharing resources with every other, for one giant multi-tasking, multi-processing system.  Even without the Combitronic option, Class 5 SmartMotor communication speeds blaze at up to 115.2kBaud in both the RS-232 and RS-485 ports.  Isolated, 24V I/O has been added, program execution speeds are vastly increased and the industries most advanced Gearing, Camming and Contouring functions have been added.

Animatics
www.animatics.com

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These new encoders distinguish themselves not only by their short overall length but also by their modern opto-ASIC based photoelectric scanning with integrated interpolation.  Thanks to the electrical output at TTL levels with differential signals, these encoders can be connected to almost all standard subsequent electronics for control of digitally controlled servo motors (up to edge lengths of 40 mm and 55 mm), and are useful in various applications in the Automation industry.

Currently available, the HEIDENHAIN 1023 encoder has an overall length of 35.2 mm max and an IP 64 rating, making it especially useful in hazardous environments; the HEIDENHAIN 1123 encoder has an overall length of 30.3 mm max and an IP 0 for general use.

Both encoders have mounted stator couplings and blind hollow shafts.  Choice of appropriate commutation signals is available to the buyer as the amount depends upon the number of poles of the motor to be controlled.

HEIDENHAIN
www.heidenhain.us

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The AMCI Direct web site provides customers with a virtual shopping experience. Every resolver and encoder product sold on the eCommerce web site is accompanied by a complete description, specification table, PDF outline drawing(s), and 360 degree product photography including a zoom view for close up inspection. “AMCI’s customer satisfaction consistently ranks above average thanks to our quality products and the knowledgeable, friendly Sales team. AMCI Direct is the online extension of our customer’s shopping experience and feedback so far has been excellent!” explained Bob Alesio, AMCI Sales Manager.

Resolvers
AMCI Direct carries a wide variety of AMCI size 11 resolvers. AMCI’s size 11 resolver sensors can be easily crossed with most other size 11 resolvers in the market. Customers can select their replacement resolver through the site’s search tool, or use the convenient cross reference guide which provides a list of manufacturers, part numbers, and accuracy. “When customers go online to cross our resolvers with those from other manufacturers, they are often surprised by the low cost and sheer quantity of units that we have in stock,” said Dave Johnston, Inside Sales Representative, AMCI.

Encoders
AMCI size 15 magnetic encoders are available in either SSI or Analog output versions. Designed for budget-minded applications that require superior durability, the ME15’s small size, high reliability, and IP67 rated housing make it an ideal replacement for potentiometers and small industrial encoders.

SSI & Analog output versions:

• Ideal for high-shock and vibration applications
• IP67 rating (dust tight, water tight)
• Compact low cost design
• 10 bit resolution
• Servo mounting styles
• Integral cable

AMCI Direct enables customers to customize their encoder with a variety of options using the online part number generator. All orders are in stock and ready for delivery.

Advanced Micro Controls Inc.
www.amci.com

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As these compact Absolute ATD EtherCAT Encoders measure just 80 x 58 mm, they are ideal for use in limited space applications including robotic and automated systems.  These single or multi-turn encoders are compatible with the CANopen over EtherCAT (CoE) protocol and offer 14-bit single-turn and 16-bit multi-turn resolutions.

Because Power over EtherCAT delivers power and transmits field bus signals using just one cable, Baumer Absolute ATD PoE EtherCAT Encoders are a cost-effective alternative to expensive and complex multi-cable systems.  These encoders are especially suitable for difficult-to-access applications.

These encoders can be used on robotic arms, robotic pick-and-place systems, automated packaging lines, material handling equipment, laboratory automation equipment, medical imaging systems, printing equipment, textile processes machines, theater sets, and in other applications where cable movement and cable life are a concern.

For more information on the Absolute ATD EtherCAT Encoders, contact Baumer Ltd. at (800) 937-9336.

www.baumerelectric.com/usa

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The new stepping motor encoder options for 0.36º and 0.72º motors are:

• 500 or 1000 pulses/rev
• 2 or 3 channel
• TTL or Differential (line driver type)

For 0.36° and 0.72° stepping motor and driver packages, Oriental Motor has introduced the CRK stepping motor and driver package. The CRK stepping motor and driver package highlights include:

• Pulse input 24 volt driver
→ 500 or 1000 pulses/rev
→ 2 or 3-channel TTL type encoders

• Built-in controller type
→ 500 or 1000 pulses/rev
→ 3-channel differential line driver type encoders

Oriental Motor
www.orientalmotor.com

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The Mercury II encoders’ specifications include the following vacuum models up to 10-8 torr; long-Range Accuracy up to ±1ìm; short-Range Accuracy up to ±20nm; rotary resolutions up to 268M CPR; and linear resolutions from 5 µm to 1.2nm.

The linear encoders offer linear glass with limits and stick-on index (low expansion glass available); cut-to-length PurePrecision laser tape with limits and stick-on index; and rotary scales.

The Mercury II encoders also feature software for encoder data plots and setup, lowest power consumption, robust tolerance to scale contamination, user-programmable resolution, wide setup tolerances and tiny sensors.

Mercury II encoders allow compact system designs with a sensor measuring 8.7mm and tape scale 6mm wide. The models include programmable interpolation of up to x16384. The operator can benefit from analog or digital output from the sensor, particularly a smaller footprint as well as a variety of connector options such as customer-specific connectors.

The Mercury II encoders’ small size, integrated interpolation electronics, excellent operating performance, ease of installation and low power consumption are perfect for metrology and precision motion control applications. Ultra-high speed applications are well supported by faster A-quad-B output, as well as serial word versions of up to 10m/s with 1.2nm resolution.

In addition to the new linear encoders, MicroE Systems develops small-diameter rotary, vacuum-rated models and low-cost PCB mount that are all RoHS compliant.

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The DC-Micromotors series 0816 is available in 3V, 6V and 8V versions, which have an outstanding power-to-volume ratio. The System FAULHABER, a patented ironless rotor, is truly remarkable with its extremely low inertia and low inductivity. Specifications include a no-load speed of up to 17 1000rpm, output power of 0.18W and stall torque of 0.41mNm.

A two-phase Stepper Motor with permanent magnets, the AM0820 is available in 2V, 3V, 5V and has a holding torque of 0.65mNm and 20 full steps per revolution. NdFeB is used as a magnet material to guarantee an excellent size to power ratio. The AM0820 also features two shaft bearings types: preloaded ball and sintered bronze sleeve bearings.

Also available are three all-metal precision gearheads of 08/1, 08/2 and 08/3. The 08/1 planetary gearhead offers user maximum drive torque of 120mNm in intermittent operations and 60mNm in continuous operation. The two additional 08/2 and 08/3 series spur gearheads are available in two executions, convinced with positioning control applications.

The company redefines miniature magnetic encoders with the HEM3-256, providing new possibilities for applications that require miniature motors with encoders. Also available are four resolutions that provide precise positional accuracy and stability control. The encoder is allowed to work with 3V or 5V power sources for low-voltage battery applications. It is also designed for robust reliability with an operating temperature range of -30°C to +85°C, allowing use in extreme applications.

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The device can be used to replace potentiometer-based angle encoders by combining position and motor feedback in one component or for low-cost servo feedback in rotary and linear actuators. Absolute position feedback is also very useful for machine homing. The device’s multi-turn option consists of an integral rechargeable battery, which maintains full position information for 20 hours if machine power is removed,

Rotalink designs and produces a variety of gearboxes in spur and planetary gearbox designs that feature polymer gears on ball or sintered bearings. The range also consists of ovoid-style gearheads, which include planetary gear assemblies for the output stages and a combination of spur gears for input stages. These are available in a choice of ultra-polymer materials.

The new absolute encoders are included in the company’s latest catalogue, which also features three new ranges of DC motor technologies – brushless, rare earth and heavy case – and new brushless version of the Red Drive motion controller and several gearbox lines.

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The close relationship between the two companies spans over 30 years with thousands of successful, small and precision, brushed and brushless motor applications for Netherlands’ Premotec B.V., which is now one of the four Allied Motion’s Technology Units. The partnership aims to develop a similar success with Allied Motion Emoteq/COPI Technology Unit and will work across the company’s own products that include X-Drive digital servo amplifiers, housed and frameless torque motors up to 2000Nm, ultra-high resolution incremental encoders and Quantum NEMA frame servo motors.

“We are very excited about working with these new Allied Motion products. We have an excellent reputation with Premotec’s small and precision DC motor range and the Emoteq/COPI products offer similar flexibility with a strong standard range and the ability to custom engineer product – even for small quantities,” said Vic Sayer, managing director of Mclennan.

Highlights of Mclennan’s new products include Megaflux range (large separate and frameless rotor/stator servo motors) up to 790mm in diameter with almost five times the speed ratings of competitive units and two times the power density. The motors are characterized by a high-pole count that maximizes rotational smoothness and torque output. The motors’ housed versions, which come with bearing system, position feedback and commutation device, target direct-drive ultra-high precision motion control in demanding automation applications like robotics, where the large through aperture may be utilized to feed services such as optics, pneumatics or electrics.

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With a standard IP67 rating, and IP69K rated versions available, end-users can take advantage of the DuraCoder’s protection against high pressure and high temperature wash downs; or liquid ingress from long-term immersion in water or contaminants. The DuraCoder product line comes standard with a 2.5” (63mm) housing and an oversized double row sealed bearing. Solid shaft and hub shaft versions are available with a variety of sizing options. Shaft loadings of up to 100 lbs. radial/50 lbs. axial provide maximum durability for applications that require superior strength. DuraCoder brand encoders are available in six different versions: SSI, Digital, Analog, Incremental, DeviceNet, and Ethernet/IP.

Applications that benefit from the stainless steel DuraCoder design include food/beverage processing, specialty vehicles, cranes, energy generation equipment, chemical/petroleum processing, wastewater treatment plants, offshore/marine environments, steel mills, and many other indoor and outdoor installations. With the ability to withstand the harshest environments, the DuraCoder remains the perfect solution for heavy-duty applications.

® DuraCoder is a registered trademark of Advanced Micro Controls Inc. (AMCI)

Advanced Micro Controls Inc.
www.amci.com

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Sensor data can be read quickly and securely using the new plug-in module for evaluating BiSS encoders.

These advantages make the BiSS encoder interface especially suitable for applications with high demands, for example when integrating fully digital hollow shaft encoders with large internal diameters or robust, absolute and linear measurement systems with high-speed movements.

ACOPOS is an intelligent servo drive that increases production volume, reduces production cycles and improves quality with greater precision. With ACOPOS, B&R offers bus-capable servo drives for machine manufacturing in the power range from 400 W to 64 kW. With Ethernet POWERLINK, it is even possible to operate up to 240 axes on one line using the same network.

B&R Industrial Automation, Inc.
www.br-automation.com

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The TTK70 encoder features a small yet robust read head – which is barely bigger compared to a match box – is very compact and easy to install, and it is best suited for applications with limited space.

The new linear is very flexible with a very wide range of interface options such as DeviceNet, Profibus, CANopen and SSI/SinCos that enables simple integration into PLC-based installations. It is also available with Hiperface interface that enables the encoder to deliver highly dynamic linear motor feedback.

With a high level of resistance to wet, dust and dirt environments – thanks to its IP65 rating and magnetic operating principles – the TTK70 gives high reliability even in the harshest of operating conditions.

This new encoder is best suited for use in cutting, metal forming, handling systems and processing PCB print and assembly, as well as medical scanning equipment and flatbed printers.

The TTK70 can be operated at up to 10m/s to make it a reliable solution for even the most rapid of axes. The new encoder can also measure up to 4m in length by using its absolute coded magnetic tape measuring up to 4m in length and 10mm in width.

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NR25 EtherNet/IP DuraCoder Encoder Features:

• Up to 30 bit (65536 steps x 16384 revolutions) Resolution
• Absolute Single-turn and Multi-turn
• Power over EtherNet (PoE)
• Resolver-based Durability
• IP67 Ingress Protection Rating
• Solid Shaft and Hub Shaft Versions
• Stainless Steel Units Available
• ODVA Compliant

AMCI’s NR25 EtherNet/IP encoder comes standard with Power over Ethernet (PoE), making it possible to install this encoder using a single Ethernet cable that transmits data and power. The connector and cabling requirements are cut in half, plus installation is simpler and less expensive. Additionally, the ability to program with implicit and explicit messaging allows the NR25 series encoders to easily integrate with PLCs and PACs supporting EtherNet/IP. Position resolution, counting direction, velocity format, and presets are all configured easily through the EtherNet/IP port. And the ability to configure parameters simultaneously makes the NR25 encoder quick and easy to set up.

LEDs on the NR25 EtherNet/IP DuraCoders help technicians troubleshoot from the factory floor by displaying diagnostic information including module status, network status, and link/activity status.

The ODVA compliant NR25 EtherNet/IP encoders are offered in a 2.5” diameter package with two M12 connectors on the back, supplying power and EtherNet/IP connectivity. Using Power over Ethernet, users can save time and money while also simplifying wiring, as only one connector is needed for power and EtherNet/IP connectivity. The NR25 encoder is resolver based, meaning that it was designed to provide absolute position feedback without glass discs or sensitive LED components, enabling it to withstand high levels of shock and vibration. The IP67 rated package is the solution for single-turn and multi-turn position applications requiring protection from dust and water ingress. Stainless steel versions are also available for food grade and marine environments.

Advanced Micro Controls Inc.
www.amci.com

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Ethernet IP Encoders come in standard 58mm diameter housings, with a solid 10mm shaft, and clamping flange design. Diagnostic LEDs provide visual status indication to help users quickly correct problems and keep machines up and running. M12 d-coded connectors simplify operation and are used to power, and facilitate communication to and from, the encoder. Ethernet IP Encoders can be used with cable pull devices to determine linear position feedback and transmit that feedback back to the controller.

In addition to Ethernet/IP, Pepperl+Fuchs offers a complete family of encoders for CANopen-, DeviceNet-, PROFIBUS- and AS-Interface operation.

Pepperl+Fuchs
www.pepperl-fuchs.us

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This single turn absolute encoder provides 16-bits of resolution over 360 degrees of shaft rotation. The HBA4 is available with a 12mm or 0.500” diameter bore size with either a ball bearing or sleeve bushing bearing assembly and is sealed to an IP66 rating.

The absolute encoder slips over a shaft and is locked in place with a non-marring clamp mount. A flexible anti-rotation tether provides single point mounting for bolt circles ranging from 2.50” up to 5.00” in diameter and compensates for shaft run out. The HBA4 communicates serially to a host via the industry standard RS485 bus.

US Digital
www.usdigital.com/hba4

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The steel tape of the MSR 40 utilizes the proven Single-Field Scanning principle with 200µm grating pitch – offering ease of mounting with high achievable angular resolution. Accuracy of the system is ±30 µm/m with an operating temperature of 0 C to +50 C. With these specifications, this encoder is distinguished by its successful operation at high speeds, especially noteworthy for large measurement applications.

The novelty of the MSR 40 encoder is that it links the ends of the steel tape together with one of two joining mechanisms, depending upon the application. Measurement through a full 360° is thus possible. The MOR version uses a steel ring tensioning cleat for encoders mounted to a steel surface thus allowing for thermal expansion; the MER version uses a rubber gasket with a low-profile tensioning cleat for other mounting surfaces.

Depending on the shaft diameter, line counts of up to 20,000 are available on the MSR 40. All versions offer quasi – absolute positioning via distance-coded reference marks or homing via a single reference mark. The MSR 40 is easily mountable and is available in both standard and custom sizes. Custom orders are welcomed.

RSF Elektronik
www.rsf.at

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The new AMT303 generates position information through CUI’s patented, capacitive code generation system with a proprietary ASIC. Its technology is immune to magnetic interference and environmental particulates, creating an economical, reliable and stable positioning and control solution. The new encoder consumes 10 mA at 5 V DC, making it convenient for any application.

The AMT303 encoder’s SPI affords simpler hardware and higher throughput interfacing than SMBus or I²C. The onboard PIC 16F690 MCU runs at up to 10 MHz providing for high-speed applications using a TCL code. Zero position may be achieved by ground trigger or SPI command, eliminating the need for long mechanical alignment during the mounting process. Moreover, an EEPROM can accommodate up to 128 bytes of user data. A demo board is also available for standalone demonstration, example TCL code and PC access to SPI interface.

“We believe the AMT303 series represents a breakthrough in commutation encoders,” said James Seiler, Encoder Product Manager of CUI. “Users will really be able to leverage the benefits of our ASIC-based system. When compared to optical encoders typically used in commutation applications, the AMT303 will bring a level of ruggedness and ease of use unrivaled in the industry.”

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This encoder is available with ten pulse counts up to 5,000 PPR and with push-pull or RS422 outputs. It incorporates a proprietary Safety-Lock™ bearing assembly that has been tested to provide additional protection against vibration and installation errors.

The Sendix 5006 incremental encoder is ideal for use in a wide variety of industries, including food packaging, pharmaceutical, chemical, oil and gas, as well as other challenging applications within corrosive environments or requiring long-term durability.

TURCK
www.turck.us

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Housed in a small 4×4 mm QFN package, the low-power encoder is the smallest device in its class. Depending on the readout rate, the current consumption is reduced to µA-levels, e.g. 50µA average at 10 measurements per second – the lowest in the industry.

Only a few passive components and a magnet rotating above the chip are necessary to assemble the encoder systems. The AS5055 performs all angle calculations as well as automatic power-up and power-down on–chip. It only draws current, when a new measurement is requested by the host controller. As soon as the acquisition of a measurement is completed, the AS5055 automatically suspends to power-down.

Josef Janisch, product marketing manager at austriamicrosystems, stated, “This is the industry’s smallest 12-bit magnetic rotary encoder available. It also offers the lowest power consumption due to automatic shutdown and wake-up modes. This is ideal for battery equipment, as it extends battery life. In addition, the industry standard SPI interface offers an easy-to-use connection to common microcontrollers.”

The AS5055 is available in a tiny 4×4 mm 16-pin QFN package, operates from a 3.3 volt power supply, and has an ambient operating temperature range of -20 to +85°C.

austriamicrosystems
www.austriamicrosystems.com

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