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POSITAL Programmable Incremental Rotary Sensors August 5, 2015

Posted by Servo2Go.com in New Product Press Releases.
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POSITAL has launched a new line of incremental rotary encoders for the motion control and industrial automation markets. These devices are programmable, which means that performance characteristics such as resolution (number of pulses per turn) and incremental pulse direction (A before B or B before A) can be modified by simply changing firmware parameters. The characteristics of the output driver can similarly be set to either Push-Pull (HTL) or RS422 (TTL).

Posital Fraba Programmable Rotary Encoder

Posital Fraba Programmable Rotary Encoder

The new incremental encoders are based on magnetic measurement technology and are compact, rugged and highly resistant to shock and vibration loadings. Resolution can be set anywhere in the range of 1 to 16,384 pulses per turn. They are also available with high performance seals that make them suitable for use in the most extreme environmental conditions.

Like other POSITAL motion and position sensors, the new incremental encoders are available in a very large number of mechanical configurations. Buyers can choose from an industry-leading range of features and options using POSITAL’s online Product Finder tool, then have the appropriate products built to order in less than two weeks.

Click on the link below to view the datasheet on Posital’s line of programmable incremental rotary encoders-

http://www.electromate.com/pdf_lib/Posital%20Fraba/Posital_Catalog.pdf

For more information, please contact:

EDITORIAL CONTACT:
Warren Osak
sales@servo2go.com
Toll Free Phone:  877-378-0240
Toll Free Fax:       877-378-0249
www.servo2go.com

Tags:   Posital, Fraba, Servo2Go, Incremental Encoder, Absolute Encoder, Magnetic Encoder, Heavy Duty Encoder, IP68, IP69K, Hybrid Encoder, Programmable Encoder

POSITAL Adds Communications Interfaces for IXARC Magnetic Encoders April 24, 2015

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POSITAL-FRABA has introduced two new communications interfaces for its high-precision IXARC magnetic rotary encoders. These versatile, compact and cost-effective devices are now available with PROFINET and EtherCAT interfaces.The networking technologies supported by the new communications interfaces play important roles in factory automation control systems and in process industries.
Posital ProfiNet EtherCAT Encoder
PROFINET, a development of the widely-used PROFIBUS fieldbus system, makes use of Ethernet technology and can be used in larger installations where it is useful to integrate factory floor systems with other applications (such as ERP systems) running on the larger enterprise Ethernet network. PROFINET includes special Ethernet communications protocols to provide real-time signaling between devices. EtherCAT (Ethernet for Control Automation Technology) is a special form of industrial Ethernet that avoids the unpredictable transmission delays that characterize ‘standard’ Ethernet networks. EtherCAT networks ensure rapid communications of interrupt signals between a controller and other devices within a control system where real-time control is essential.
POSITAL-FRABA’s precision IXARC magnetic encoders provide 12 bit accuracy and dynamic response that rivals the best optical encoders. Based on magnetic measurement technology, these rugged devices are engineered to operate reliably in wet and dirty conditions with shock loadings of up to 300g. Multi-turn models have a range of up to 65,536 revolutions, provided by a unique self-powered revolution counting system that keeps track of absolute positions under all conditions. IXARC encoders are available with multiple options for housing size and materials, flange configuration, shaft type and diameter, connection/wiring type and level of environmental protection.
POSITAL’s online product finder tool – available at www.posital.com – helps users to quickly and efficiently identify products that will meet their specific requirements.

Click on the link below to view the datasheet on Posital’s line of IXARC magnetic encoders-

http://www.electromate.com/pdf_lib/Posital%20Fraba/Posital_Catalog.pdf

For more information, please contact:

EDITORIAL CONTACT:
Warren Osak
sales@servo2go.com
Toll Free Phone:  877-378-0240
Toll Free Fax:       877-378-0249
www.servo2go.com

Tags:   Posital, Fraba, Servo2Go, Incremental Encoder, Absolute Encoder, Magnetic Encoder, Heavy Duty Encoder, IP68, IP69K, Hybrid Encoder

Industry links to the IoT from product order to delivery April 1, 2015

Posted by Servo2Go.com in New Product Press Releases, News & Events.
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Reprint of the Electronics in Automation Feature – Canadian Electronics magazine, page 16
http://www.canadianelectronics.ca//images/stories/Archive/2015/CE_Feb2015.pdf

Posital Programmable Encoders

Posital Programmable Encoders

While the 2015 International CES and its exhibitors may think they own the Internet of Things (IoT) based on the recent fanfare, factory automation is among the many areas besides consumer electronics that is poised to benefit from the connectivity provided by the IoT (CES coverage on pages 4, 12 and 13).  In fact, for factories other commonly used terms include smart factories, smart production, Industry 4.0, cyber physical systems (CPS) and more.

Smarter factories mean increased automation with highly-connected intelligent production systems and processes.  In the factory environment, the connectivity to the Cloud (the cyber system) from the physical system in the factory can be wireless or wired.  Many industrial IoT applications start with wireless sensing monitoring and controlling production processes and providing that data to other locations within the company or by obtaining input from internal or external sources to improve the automation process…

Click on the link below and scroll to page 16 to read this complete article.

http://www.canadianelectronics.ca//images/stories/Archive/2015/CE_Feb2015.pdf

Click on the link below to view Posital’s encoder family-

http://www.electromate.com/pdf_lib/Posital%20Fraba/Posital_Catalog.pdf

For more information, please contact:

EDITORIAL CONTACT:
Warren Osak
sales@servo2go.com
Toll Free Phone:  877-378-0240
Toll Free Fax:       877-378-0249
www.servo2go.com

 

Tags:  Posital, Fraba, Incremental Encoder, Absolute Encoder, Magnetic Encoder, Heavy Duty Encoder, IP68, IP69K, Hybrid Encoder, Posital Fraba, Encoder, Multi-Turn Encoder, Optical Encoder, IoT, Internet of Things

New POSITAL Hybrid Rotary Encoders Combine Incremental and Absolute Functionality March 11, 2015

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POSITAL has introduced new models of its versatile IXARC magnetic encoders that combine incremental and absolute rotation measurement capabilities in a single, compact and highly robust package.  Absolute encoders provide a control system with an accurate report of the rotational angle and rotation-count at a specific point in time, which makes them ideal for many machinery positioning tasks.

Posital IXARC Rotary Magnetic Hybrid Encoder

Posital IXARC Rotary Magnetic Hybrid Encoder

Incremental encoders provide a signal pulse each time the encoder shaft rotates by a specified angle.  Their excellent dynamic response makes them a good choice for monitoring rotational speed and direction.  “Combining both measurement capabilities in a single device provides control system designers with extra flexibility,” underlines POSITAL product manager Chintan Doshi.  “Moreover, the incremental signal can be used as a ‘heartbeat’ that confirms that the sensor is functioning normally.”  Because the new IXARC hybrid encoders are based on POSITAL’s high-performance magnetic measurement technology, they offer a unique combination of accuracy, shock/dust/moisture resistance and compact size.

IXARC hybrid incremental + absolute rotary encoders have communications interfaces that support both measurement modes: RS 422, HTL or TTL for incremental readings and SSI for absolute measurements. Available multi-turn versions can count up to 64,000 revolutions while incremental measurements have resolutions as high as 16,384 pulses per revolution.

Like other POSITAL sensors, the new IXARC hybrid incremental + absolute encoders are available with multiple options for housing size and materials, flange configuration, shaft type and diameter, connection/wiring type and level of environmental protection – up to IP67. POSITAL’s online product finder tool – available at www.posital.com – helps users to quickly and efficiently identify products that will meet their specific requirements.

Click on the link below to view the datasheet on Posital’s line of IXARC magnetic encoders-

http://www.electromate.com/pdf_lib/Posital%20Fraba/Posital_Catalog.pdf

For more information, please contact:

EDITORIAL CONTACT:
Warren Osak
sales@servo2go.com
Toll Free Phone:  877-378-0240
Toll Free Fax:       877-378-0249
www.servo2go.com

 

Tags:   Posital, Fraba, Servo2Go, Incremental Encoder, Absolute Encoder, Magnetic Encoder, Heavy Duty Encoder, IP68, IP69K, Hybrid Encoder

IXARC ENCODERS DESIGNED FOR CHALLENGING ENVIRONMENTS January 28, 2015

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High Performance with Incremental or Absolute Interface

Posital Encoders challenging environments IXARCPOSITAL is excited to introduce the new IXARC high performance magnetic encoder in a heavy duty version.  With an IP68/IP69K rating, high shock and vibration resistance and high load bearing shafts, these encoders are built to last in the most abusive environments.  IXARC High Performance encoders are available with incremental and SSI interfaces to suit your application, and provide up to 16384 pulses per revolution (incremental) and  resolutions up to 16 bit singleturn and 22 bit multiturn (SSI).

Water Proof for Harsh Environments

Postial waterproof encoderWater damage is a common problem for many sensors, but not for the IXARC heavy duty rotary encoder. Whether it is pressure washing an excavator or salt spray on a ship, with an IP68/IP69K environmental rating and optional stainless steel housings, these sensors are built for years of reliable use.

 

Compact and Robust Housings

The IP68/IP69K IXARC heavy duty rotary encoder has a diameter of only 36/42 mm which makes it a compact solution for many applications with limited installation space. Moreover, its rugged housing, hardened shaft and extraordinary sealing provide protection against wear and corrosion.

Click on the link below to view the datasheet on Posital’s line of IXARC heavy duty encoders-

http://www.electromate.com/pdf_lib/Posital%20Fraba/Posital_Catalog.pdf

For more information, please contact:

EDITORIAL CONTACT:
Warren Osak
sales@servo2go.com
Toll Free Phone:  877-378-0240
Toll Free Fax:       877-378-0249
www.servo2go.com

Tags:   Posital, Fraba, Servo2Go, Incremental Encoder, Absolute Encoder, Magnetic Encoder, Heavy Duty Encoder, IP68, IP69K

 

New TILTIX Inclinometer with Modbus RTU Interface January 7, 2015

Posted by Servo2Go.com in New Product Press Releases.
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Robust and Cost Efficient Tilt Monitoring

Posital Inclinometer

Posital Inclinometer

POSITAL TILTIX inclinometers are now available with a new communication interface, Modbus RTU. Modbus RTU protocols, which are openly published and royalty-free, have emerged as a de-facto standard for simple, robust and cost-efficient data acquisition and control systems built around standard PLCs. Modbus RTU nodes can be connected together through RS-485 serial connections with up to 32 devices connected to the bus.

Features include:

  • Full 360° Single Axis or Dual Axis ±80°
  • Shock Immunity up to 100 g
  • Tough Fiber-reinforced PBT and Heavy Duty Die-cast Aluminum Housings Available
  • Programmable Measurement Resolution, Zero Setting and Direction via API
  • Ideal for Solar Tracking Applications

Click on the link below to view the datasheet on the TILTIX inclinometers-

Click to access Posital_Catalog.pdf

For more information, please contact:

EDITORIAL CONTACT:
Warren Osak
sales@servo2go.com
Toll Free Phone:  877-378-0240
Toll Free Fax:       877-378-0249
www.servo2go.com

 

Tags:   Posital, Fraba, Servo2Go, Encoder, Absolute Encoder, Inclinometer, Programmable Encoder, Incremental Encoder, Linear Sensor, Inclinometer, TILTIX inclinometers

The POSITAL Advantage – Over 130,000 Varieties of Sensors! November 25, 2014

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The POSITAL Advantage: Modularity and Mass-Customization

Posital Fraba Encoders

Posital Fraba Encoders

Until now, users of position and motion sensors have had to choose between low-cost standardized products and more expensive custom-built items.  For cost-sensitive applications, sensor builders have adopted mass production techniques, building large runs of identical products.  The rotation sensors used in automotive ABS and stability control systems are good examples of high-volume, mass produced items.  For more demanding customers – such as machine builders creating complex industrial automation and motion control systems – sensor manufacturers have often relied on a more craft-based approach, with expert machinists building custom-designed products in in small batch quantities.  These specialized items are more expensive than their mass-produced counterparts and usually take far longer to be delivered. However, for the specialist machine builder, getting instruments that meet their exact requirements can often be more cost-effective than adapting a not-quite-right unit.

POSITAL has broken down the “inexpensive but inflexible” vs. “customized but costly” divide by developing a new mass-customized approach to sensor design and fabrication.  This approach centers on a highly modular device architecture.  Sensing elements, controlling microprocessors, housings, communications interfaces, mounting hardware etc. are all designed to be – as far as possible – interchangeable modules.  Thus, for example, if the buyer of a rotary encoder requires a POSITAL IXARC multi-turn magnetic encoder with a stainless-steel housing, IP67-rated seals, a 10 mm solid shaft and a CANopen communications interface, the technician responsible for assembling the device can simply select the appropriate sub-components from inventory and put them together.  This approach means that FRABA can offer an extremely large number of possible variations on their basic sensor designs – over 135,000 models currently!Moreover, special configurations can be built and delivered quickly – usually within a few days of receiving an order.

FRABA’s modular approach to sensor fabrication is supported by a highly computerized manufacturing control system.  Assembly technicians are provided with step-by-step instructions that guide them through the assembly process.  (These instructions are in graphical form, which avoids communications problems with a multi-lingual workforce.) The production control system also tracks each item from the time an order is received, recording information about construction, QA testing, calibration and shipping.

GO TO SUPPLIER’S WEBSITE

For more information, please contact:

EDITORIAL CONTACT:
Warren Osak
sales@servo2go.com
Toll Free Phone:  877-378-0240
Toll Free Fax:       877-378-0249
www.servo2go.com

Tags:   Posital, Fraba, Servo2Go, Encoder, Absolute Encoder, Inclinometer, Programmable Encoder, Incremental Encoder, Linear Sensor

What is meant by Rotary Incremental Encoder Index Pulse “gating”? June 11, 2014

Posted by Servo2Go.com in Technical Support Information.
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Quantum Devices Optical Encoder

Quantum Devices Optical Encoder

Gating refers to the width of the Z (index) pulse relative to the A and B channels. With ungated devices the edges of the Z pulse have no hard relation to A & B.

Gating to channel A, requires the Z pulse to be high once per revolution and only when A is high.

Gating to channels A&B high requires the Z pulse to be high once per revolution and only when A AND B are high.

Gating to A creates a Z pulse roughly 180 Electrical Degrees in duration while gating to A&B creates a Z pulse roughly 90 Electrical Degrees in duration.

Gating to a smaller duration increases the precision of the Z pulse, but also requires the motion system to be able to read the Z channel at a faster rate.

Gating is sometimes required by certain drive/amplifier/controller manufacturers.

QD145 Z (Index Pulse) Specifications:

incremental-encoder-gating1
Ungated Z
Z-A/A-Z min = 0 Electrical Degrees
Z-A/A-Z max= 225 Electrical Degrees
Z width min = 180 Electrical Degrees
Z width Max = 540 Electrical Degrees

Z Gated to A
Z width min = 135 Electrical Degrees
Z with max = A true

Z Gated to A&B
Z width min = 45 Electrical Degrees
Z width Max = A&B true

incremental-encoder-gated1

Ungated Z
Z true over A&B> 45 Electrical Degrees
Z-A&B/A&B-Z min = 0 Electrical Degrees
Z-A&B/A&B-Z max= 315 Electrical Degrees
Z width min = 180 Electrical Degrees
Z width Max = 540 Electrical Degrees

Z Gated to A
Z width min = 135 Electrical Degrees
Z with max = A true

Z Gated to A&B
Z width min = 45 Electrical Degrees
Z width Max = A&B true

More information on ‘Quick Ship’ Industrial Rotary and Modular Shaft Encoders can be viewed at-

http://servo2go.com/supplier.php?id=1057843244

For more information please contact:

sales@servo2go.com
Toll Free Phone:   877-378-0240
Toll Free Fax:       877-378-0249
www.servo2go.com

 

Tags:  Encoder, Incremental Encoder, Absolute Encoder, Single-Ended Encoder, Differential Encoder, Servo2Go, Quantum Devices

 

 

The no assembly hassle industrial optical encoder from Quantum Devices May 7, 2014

Posted by Servo2Go.com in New Product Press Releases.
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The QPhase™ QD200 has been designed to eliminate the assembly hassle and hidden cost of installing modular or kit encoders onto OEM products.  The QD200 is a complete operational unit with an integral dual ABEC 5, ball bearing, insert molded hollow shaft support that provides the mechanical stability for this low profile (0.93” high by 2.00” diameter) high resolution encoder package.  Using our proprietary sensing technology we are able to obtain an incremental, 5000 PPR, plus Index pulse, without the use of interpolation schemes.  The stainless steel flexible spring mount provides for 30° rotational adjustment to permit precise commutation alignment and has been designed to allow for more motor tail shaft run out than typical modular or kit type units can tolerate.

Quantum Devices QD200 Optical Encoder

Quantum Devices QD200 Optical Encoder

Product options include: 120° C continuous ambient operating temperature, 4 to 8 pole three phase commutation signals for brushless motors, 5–26 VDC operating input voltages, high voltage line driver outputs on both incremental and commutation lines and standard resolutions from 500 PPR to 5000 PPR derived directly from the encoder disc.

More information on the QD200 optical encoder from Quantum Devices can be found at the link below-

https://www.servo2go.com/product.php?ID=100130&cat=

For more information, please contact:

Editorial Contact:

Warren Osak
sales@servo2go.com
Toll Free Phone:  877-378-0240
Toll Free Fax:   877-378-0249
www.servo2go.com

 

Tags:  Encoder, Incremental Encoder, Absolute Encoder, Single-Ended Encoder, Differential Encoder, Servo2Go, Quantum Devices

 

Understanding Incremental Encoder Signals April 29, 2014

Posted by Servo2Go.com in Technical Support Information.
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Which incremental encoder wires should I use?

Channels A & B (Incremental Channels)

Use only A (or only B) for an RPM or counting applications where the rotation is either unidirectional, or where you don’t need to know direction.

Use A and B together to know direction.  After two low pulses the next high pulse indicates direction.  This is due to the phasing offset between A and B of 90 electrical degrees, placing the signals in what is known as quadrature.

These signals can also be used to set up an up/down counter.

Index pulse, also known as Z, marker, or I

Index pulse is a pulse that occurs once per rotation.  It’s duration is nominally one A (or B) electrical cycle, but can be gated to reduce the pulse width.

The Index (Z) pulse can be used to verify correct pulse count.

The Incremental Encoder Index pulse is commonly used for precision homing.  As an example, a lead screw may bring a carriage back to a limit switch.  It is the nature of limit switches to close at relatively imprecise points.  This only gives a coarse homing point.  The machine can then rotate the lead screw until the Z pulse goes high.

For a 5000 line count encoder this would mean locating position to within 1/5000 of a rotation or a precision of .072 Mechanical Degrees.  This number would then be multiplied against lead screw travel.

Commutation (UVW) signals are used to commutate a brushless DC motor.  I always like to compare these signals to that of a distributor in a car.  The commutation (sometimes called “Hall”) signals tell the motor windings when to fire

You would need to have encoder commutation signals if the motor you are mounting the encoder to has a pole count and there is no other device doing the work of commutation.  It is important to note that commutation signals need to be aligned or “timed” to the motor.

Single ended vs differential

These terms refer not to the waveforms of signals, but instead to the way the signals are wired.

Single ended wiring uses one signal wire per channel and all signals are referenced to a common ground.

TTL and Open Collector are types of single ended wiring.

Differential wiring uses two wires per channel that are referenced to each other.  The signals on these wires are always 180 electrical degrees out of phase, or exact opposites.  This wiring is useful for higher noise immunity, at the cost of having more electrical connections.

Differential wiring is often employed in longer wire runs as any noise picked up on the wiring is common mode rejected.

RS-422 is an example of differential wiring.
More information on ‘Quick Ship’ Industrial Rotary and Modular Shaft Encoders can be viewed at-

http://servo2go.com/supplier.php?id=1057843244

For more information please contact:

sales@servo2go.com
Toll Free Phone:   877-378-0240
Toll Free Fax:       877-378-0249
www.servo2go.com

Tags:  Encoder, Incremental Encoder, Absolute Encoder, Single-Ended Encoder, Differential Encoder, Servo2Go, Quantum Devices