Compact servo motors: shorter – lighter – more dynamic

The 8LV servo motor series has been expanded to include additional high-performance products. With the motto “Highest power density in the smallest installation space” in mind, all mechanical and electrical elements in this series of servo motors have been integrated into an extremely compact unit. Equipped with the smallest possible absolute encoder system with a resolution of 262144 (=218) steps per revolution, the system is able to achieve the highest precision while taking up the least amount of space.

In order to save weight, installation space and the amount of mass being moved, gearboxes are mounted directly on the motor. This new mounting system was made possible by totally reconstructing the motor’s output flange and adapting it completely to the gearboxes. The center gear rests directly on the motor shaft and replaces the input shaft on the gearbox. This type of mounting renders an adapter flange, the clamp system and the gearbox input bearing obsolete. In addition to an approximately 20% savings in weight and installation space, the amount of mass that has to be moved is considerably reduced as well.

Because of the rigid structure and the small amount of mass, high-performance control loops can be created for dynamic applications, even in tight spaces.

With gearboxes that are mounted directly on the motor, it’s possible to select between the 8GM30 economy series, the 8GM40 standard gearboxes and the 8GM50 reinforced gearboxes.

Gearboxes in the standard series are available as single-stage and two-stage units with a backlash <8- <15 arcminutes. The 8GM50 series uses bearings optimized for radial and axial forces for mechanical compatibility with Wittenstein products.

With the characteristics mentioned above, this series is optimally suited for applications that place the highest demands on dynamics and torque when limited space is available.

B&R Industrial Automation Corp.
www.br-automation.com

B&R introduces certified digital servo drive safety system

B&R (www.br-automation.com) has proudly announced that its digital servo drive systems have been certified by the TÜV Rheinland. The certified servo drives offer reduced maximum impact energy produced (by a factor of 100) and error response times (by a factor of 10). With the latest servo drives, increased productivity with maximum safety and excellent machine dynamics are no longer a contradiction.

Installed in all ACOPOSmulti drive units, the relay-free SafeMC safety circuit uses EN ISO 13849 certified digital encoders to monitor how the motor responds to the servo drive’s instructions. To avoid increasing response times, the electronics were fitted directly on the drive.

B&R’s servo drives provide external monitoring modules and eliminate the need for double wiring to offer optimum use of safety equipment. Together with the SafeMC, the ACOPOSmulti can be seamlessly installed in the existing system with the X20 Safe I/O and the SafeLOGIC safety controller. With this innovation, B&R became one of the first companies to offer a certified and intelligent drive safety function including a fully network-integrated safety system. The system not only improves the safety of the workplace, but also contributes to the machine’s efficiency, as well as increases its productivity.

The device’s programming functions are developed using SafeDESIGNER at B&R Automation Studio’s standard development environment. SafeMC components embedded with parameter chip including its autonomous configuration allow easy and fast configuration during service work.

Based on open network-based safety standard openSAFETY, the company’s synchronous servo motors and SafeMC with ACOPOSmulti provides a logical complement to integrated safety components portfolio for systems and machine manufacturing.

DAANET offers compact B&R servo motors

DAANET (www.daanet.com.au) has expanded its B&R’s 8LV servo motor series portfolio to include a new range of motor-mounted gearboxes.

The high-performance servo motors offer high power density in a small installation space and integrate all electrical and mechanical elements into a very compact unit.

Designed with a very small absolute encoder system offering a resolution of 262144 steps per revolution, the system can achieve high precision while occupying lesser space.

The gearboxes are directly mounted on the motor to save installation space, weight and the amount of mass being moved, made possible by a total reconstruction of the motor’s output flange and its adoption to the gearboxes.

The center gear directly rests on the motor shaft and substitutes the input shaft on the gearbox. This kind of mounting eliminates the need for a clamp system, adapter flange or the gearbox input bearing.

Aside from saving approximately 20% in installation space and weight, it also reduces the amount of mass that has to be moved.

Creating high-performance control loops for dynamic applications is also possible even in tight spaces with the small amount of mass and rigid structure.

With gearboxes directly mounted on the motor, it is possible to choose from the standard 8GM40 gearboxes, the economy series 8GM30 gearboxes and the reinforced 8GM50 gearboxes.

The 8GM50 series uses optimized bearings for axial and radial forces for mechanical compatibility with Wittenstein products.

The latest motor series is suited for applications with high demand on torque and dynamics in limited spaces.

B&R Automation’s new stepper motors

B&R Automation (www.br-automation.com) is proud to introduce the new 80MPF series stepper motors with 60mm flanges described as cost-effective and powerful. The 80MPF series stepper motors, with 30% less power loss and 25% more torque, are ideal for applications with high clock rates such as filling systems or packaging machines.

The 60mm 80MPF, 86mm 80MPH and 56mm 80MPD motors are known to be one of the most powerful stepper motors available in the market with regard to holding torque. The company now offers motors for demanding applications with holding torque ratings between 1.1Nm and 13.6Nm.

To control the motors, B&R offers Acoposmicro, X67 system and X20 system stepper motor modules that handle currents between 1A and 10A.

Special attention was paid when designing the 80MPF series to ensure that the installation flange is matched with the current 56mm motors from the 80MPD series. Thus, the two motors series’ mounting holes are identical. Just like all B&R motors, the new robust stepper motors also have a long operating life thanks to the high-quality materials.

The company carefully made the right selection for stepper motor bearings since these are major elements when it comes to reliability in harsh conditions.  Moreover, the seals on the bearings offer protection from moisture and contamination.

The 80MPF series motors have IP30 as standard, but IP65 protection can be achieved with the optional cover. The 60mm motors can be equipped with an ABR encoder, a motor brake and/or an SSI encoder depending on the application requirements.

BiSS Interface for B&R’s ACOPOS Servo Drives

B&R has extended its wide range of plug-in modules for the ACOPOS servo drive family to include a module for evaluating BiSS encoders. The BiSS fully digital bidirectional sensor interface is an open and license-free communication standard that allows sensor data to be read synchronously, securely and quickly. The BiSS interface is characterized by a high transfer rate and reliable error detection.

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

B&R introduces Power Panel 65 ideal for multi-axis applications

B&R Industrial Automation (www.br-automation.com) unveiled its latest unit that combines a high performance programmable logic controller (“PLC”) processor with Multi Axis Motion controller, the Power Panel 65. This unit is housed within a 5.7 inch or 3.5 inch HMI. This single tool is utilized for the integration of programming, safety systems, motion control, visualization and communication for all of programmable products from B&R.

This Power Panel 65 combines compact and high performance dimensions in a single central operating and control unit. Through the integration of control (“drive technology and visualization”), the operator profits from intelligent complete solutions, which are easily connected to a variety of automation infrastructures.

The Power Panel 65 with a powerful 500MHz Geode LX800 processor can handle a performance range which is important for multi-axis applications. Moreover, the unique combination of a compact design and high performance for calculations ensures optimal utilization of the space at the switching cabinet. Intuitive operator panel can be expanded as desired by the operator.

The new unit is available with a 3.5 inch touchscreen or 5.7 inch touchscreen and function keys. It also provides an optimal design for any system or machine type.

A Fast Ethernet port and two USB interfaces guarantee that the data can be exchanged quickly with higher level systems. Remote drives and I/O can be easily connected using modular fieldbus interfaces if expansions are required. The new PP65 is available with POWERLINK interface or integrated X2X. Also, the devices can be extended with CAN, Profibus DP slave and RS232/RS485 interfaces depending on the requirements. Through this, machine operators can profit from the highest level of freedom for the control topology.