SICK introduces A3M Absolute Multiturn Encoder

SICK (www.sick.com) has unveiled a robust, absolute multiturn encoder that offers the new A3M encoder – a 14-bit sigleturn and 17-bit multiturn or a total of 31-bit output. Integrated with a Profibus output, the encoder features absolute encoders that are native to it, even without an internal power source.

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.

Hiperface DSL encoder interface simplifies servomotor connection

Sick (www.sick.com), a German encoder manufacturer, has unveiled a new digital interface technology that simplifies servomotor connection — the Hiperface DSL (digital servo link) encoder interface.

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.

Sick introduces new linear encoder for positioning robotics and machine tools

Sick (www.sick.co.uk) is proud to announce the release of its latest high-compact absolute linear encoder, the TTK70. It is designed as a motor feedback system for linear motors or for positioning machine tools and robotics. The high-performance magnetic encoder gives a very reliable alternative to fragile optical scales, with an accuracy of ± 10 microns and sub-micron resolution.

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.