Wednesday, September 17, 2014
The RK46C-VarOS object sensor is a retro-reflective photoelectric sensor which, unlike normal sensors that detect selectively, detects objects over a 50 mm band area. In packaging systems and intralogistics, the object sensor detects objects in the light-band with various sizes and shapes as well as surfaces with openings. In the past, multiple sensors and considerable work was necessary for this purpose.
Adjustable sensitivity levels and automatic sensitivity readjustment (ALC) support high system availability in the event of soiling and changing environmental conditions – even stretch-wrapped or shrink-wrapped objects are reliably detected. The special lens enables reliable detection over the entire light-band width in two adjustable sensitivity levels (8 and 12 mm). Common parts from standard sensor technology and compatibility with established mounting systems considerably simplify mounting of the variable object sensor and bring a noticeable price advantage.
Friday, September 12, 2014
Different models are available: 15 through beam, 4 m polarised retroreflex, 70 cm diffuse proximity and narrow beam for between 50 and 150 mm. Moreover, a new 5 to 25 cm background suppression model with multi-turn mechanical trimmer setting is available.
Versions with NPN or PNP output, with dark or light operating mode and with cable or M8 connection are foreseen. The plastic housing is completely overprinted, guaranteeing maximum mechanical protection also in presence of frequent washing.
The free voltage versions present a relay output, while the 10-30 Vdc versions have a double NPN and PNP output, both available with 1 or 2 m proximity, 5 m polarised retroreflex, 3 m polarised retroreflex and 10 or 50 m through beam optic functions.
The red output LED and the green stability LED are visible through the IP66 hermetically-sealed cover, that also protects the terminal block and commands, such as the sensitivity adjustment trimmer and dark/light operating mode selector.
The versions with output timing present a trimmer to regulate the time up to 16 s. and a selector to set 5 different functions.
Thursday, September 11, 2014
"For decentralized applications that require precision positioning, the 8400 protec frequency inverter is in the right place—mounted on the line or wall adjacent—ready to start, on the spot,” says Darrow Hanesian, Global Director of Inverter Products, Lenze Americas.
The Lenze 8400 protec inverter ships ready to install with innovative Plug and Drive Technology, in addition to standard mains, motor, brake and communications connectors. All terminals of the 8400 protec, ranging from the shielded motor cable to the power supply and the fieldbus link, and including the terminal for the sensors, are equipped with standardized connectors to reduce installation time and increase plant availability and productivity. Standard communication is via PROFIBUS and PROFINET with CANopen as an option.
An optional brake resistor can be integrated or externally connected. The motor connector includes a motor temperature sensor. For mains, optional energy bus (daisy chain) or 24V internal connections are available. The Safe Torque OFF (STO) option offers drive-based safety to protect the drive and user by disabling the drive and disconnecting the power supply to the motor so the drive cannot generate torque.
The 8400 protec features straightforward diagnostics with an easy-to-read LED display, plus 18 individual LEDs indicating status, communications, safety and I/O functions. It’s equipped with L-force Engineer configuration software which enables easy commissioning and optimal control. The replaceable memory module stores all parameters for fast replacement with minimal downtime.
Adds Hanesian, “With its tough IP66 enclosure, the 8400 protec is equally at home in material handling operations on a rotary indexing table, a conveyor, or lifting apparatus. The rugged and compact package mounts directly at the point of application for space savings and quick commissioning.”
“Positioning in motor drive systems used to require a separate motion controller. Most applications don’t require a higher cost servo drive. Dynamic speed, torque and precision motion control can be achieved with a powerful inverter in combination with an asynchronous motor,” states Darrow Hanesian, director of inverter products, Lenze Americas. “Our streamlined HighLine delivers all the cost savings and benefits of combining two drive elements—the motion controller and the frequency inverter — into one.”
The HighLine inverters’ integrated components translate to installation ease, with less cabling and a smaller panel size. Built-in advanced functionality includes linear and S-shaped travel profiles, a touch probe function, and homing selectable from 14 modes. The brake management system reduces wear on service brakes. A 2.5A digital output with integrated spark suppressor directly controls a 24V service brake. Standard features include an integrated brake chopper, switching logic for spring-applied brakes, a plug-in memory module, and CANopen communications on board with baud rate up to 1000kbit/s. Optional plug-in network communication modules are available for PROFIBUS, EtherCAT, PROFINET fieldbuses. HighLine can be supplied with a Safe Torque Off (STO) module that complies with IEC 61508, EN/IEC 62061, and SIL3.
Available in power ranges 0.25-15kW, HighLine delivers up to 200 percent rated torque. Performance pushes into levels that would previously have required servo technology, with HighLine positioning accuracies of 0.1-0.2mm at 60 operations (120 movements) per second. Lenze L-force Engineer configuration software offers users an intuitive, graphic interface that facilitates drive parameter setting and configuration. The High-Level Engineer version contains key functions for large scale projects, including establishing network, interconnecting communication and a function block editor.
Lenze’s 8400 HighLine inverter drives excel at controlled movement tasks at a considerably lower price point than servo technology. Industrial and manufacturing positioning applications might include cut-to-length machinery, rotary indexing tables, palletizers, extruders, hoists, filling systems, conveyors, turntables, gates and dosing pumps, and other motion control tasks. The L-force 8400 is a new range of inverter drives from Lenze. Four models with increasing functionality, the BaseLine, StateLine, HighLine and TopLine, optimize customer sizing, design flexibility, and cost savings. The Lenze 8400 Inverter Drives offer a fully compatible and consistently scaled range of modular drive solutions.
“The 8400 product family runs the gamut from basic inverter to ‘servo’ inverter. From simple continuous motion applications, like driving a conveyor, to controlling complex synchronized pick-and-place applications, there is an 8400 inverter right-sized for the job,” said Darrow Hanesian, director of inverter products, Lenze Americas. “Matched with high efficiency Lenze motors, gearboxes and brakes, the 8400 series steers the whole drive package.”
Most mechanical processes have variable power requirements that depend on external parameters, such as the production volume. A frequency inverter matches the speed and torque with the process requirements. In addition to L-Force control and software, the 8400 series inverters incorporate intelligent features, including memory modules, online diagnostics and optional integrated safety systems.
The Lenze 8400 BaseLine, StateLine, HighLine and TopLine versions are a scaled series of frequency inverters to exactly match the requirements of a given application. The 8400 motec and protec inverters offer decentralized drive technology. Identical installation, parameterization, and user operation across the 8400 series enable ease of installation and operation of a single production line or full factory automation. The 8400 inverters are designed to optimize automated industrial processes, such as winding, packaging, positioning, extruding, and filling.
“Efficiency is a major cost factor in inverter drive systems, especially in demanding applications with protracted running times, acceleration and lifting operations. The robust 8400 inverters bring maximum productivity together with the highest order picking quality and reliability,” added Hanesian.
According to company sources, the Potentiometer option is built right into the terminal cover, providing direct front panel access. Steve Dextraze, Inverter Product Manager at Lenze-AC Tech, calls it robust and easy to maneuver and states that the potentiometer knob takes the place of the up/down buttons on the drive keypad, giving the operator manual speed control over a 0-10V analog output.
“The potentiometer option is great for use in hands-on applications where speed must be ramped up/down, such as conveyer applications or food/beverage process applications.” says Dextraze, adding, “In single use installations the potentiometer provides just the right amount of control without the user having to use the keypad.”
Dextraze explains that the SMVector inverter drive provides all the features required by demanding applications, including four modes of operation – V/Hz, Enhanced V/Hz, Vector Speed, and Torque – plus high starting torque, auto-tuning, advanced low-speed control and dynamic speed regulation. “ Dextraze further comments that the SMVector is designed to be truly a global product, with an input voltage ranging from 120VAC 1-phase to 600 VAC, 3-phase, plus the Electronic Programming Module or EPM, a removable chip that is the drive’s memory and allows a customer to program multiple drives in just seconds; the SMVector NEMA 4X also offers an integral disconnect option for quick and easy motor maintenance.
Available for the NEMA 1 and 4X SMVector models, the Additional I/O Modules are available in two configurations (ESVZAL0, ESVZAL1). The modules supplement the standard I/O functions by providing 1 programmable form C relay output (ESVZAL0) or 1 programmable form C relay output and 2 programmable digital inputs (ESVZAL1).
The I/O module does not add to the overall size of the SMVector inverter as it fits right into the SMVector inverter terminal cover allowing for easy field installation. SMVector inverters that are fitted with an additional I/O module option will no longer have the capability of accommodating an optional communication module. “The additional I/O module is great for applications requiring a relay and/or more digital inputs.” says Steve Dextraze, Inverter Product Manager at Lenze-AC Tech. “The two extra digital inputs are just that – supplementary – and allow the drive to be configured for several application specific tasks such as multiple preset speeds, electronic braking and motor jogging.”
The SMVector inverter drive provides all the features required by demanding applications, including four modes of operation – V/Hz, Enhanced V/Hz, Vector Speed, and Torque – plus high starting torque, auto-tuning, advanced low-speed control and dynamic speed regulation. The SMVector is designed to be truly a global product, with an input voltage ranging from 120VAC 1-phase to 600 VAC, 3-phase, plus the Electronic Programming Module or EPM, a removable chip that is the drive’s memory and allows a customer to program multiple drives in just seconds.
According to Mike Bailey, Product Sales Manager at Lenze-AC Tech, the SMVector AC Drive can seamlessly operate on an EtherNet/IP network with the addition of a simple plug-in communication module. “Other network protocols are also available as option modules including CANopen, DeviceNet, Profibus and Modbus RS-485,” states Bailey.
EtherNet/IP is a member of the DeviceNet and ControlNet family of Common Industrial Protocols (CIP) developed by Allen-Bradley (Rockwell Automation – ROK). As a member of the CIP family, EtherNet/IP can utilize the same set of pre-defined common objects, thus making communication between devices from different manufacturers much easier.
“We first added EtherNet/IP to our PositionServo Drive and since then, our customers have been looking for EtherNet/IP for their AC Drive Solutions,” says Bailey, and he adds, “Allen-Bradley remains the largest implementer of EtherNet/IP, with most applications in the packaging and automotive markets; providing EtherNet/IP compatibility along side other multiple communication options for all of our products allows our customers to choose the fieldbus that best fits their automation application as well as their physical network.” Bailey explains that EtherNet/IP is a popular industrial network solution because it can support a nearly unlimited amount of nodes, can be used on a single point connection for configuration and control and permits devices to send and receive messages simultaneously.
The EtherNet port on the front of the PositionServo drive can seamlessly operate on either a Modbus TCP/IP or an EtherNet/IP network. Other network protocols are available as option modules including CANopen, DeviceNet, Profibus and RS-485.
EtherNet/IP (the IP stands for Industrial Protocol) is a member of the DeviceNet and ControlNet family of Common Industrial Protocols (CIP) developed by Allen-Bradley (Rockwell Automation – ROK). As a member of the CIP family, EtherNet/IP can utilize the same set of pre-defined common objects, thus making communication between devices from different manufacturers much easier.
Allen-Bradley remains the largest implementer of EtherNet/IP, with most applications in the packaging and automotive markets. “Adding EtherNet/IP protocol to the PositionServo is a direct result of our strong customer focus, and is based on customer feedback.” says Mike Bailey, PositionServo Product Manager at Lenze-AC Tech, and he adds, “Providing EtherNet/IP compatibility along side other multiple communication options for our products allows our customers to choose the fieldbus that best fits their automation application as well as their physical network.” Bailey explains that EtherNet/IP is a popular industrial network solution because it can support a nearly unlimited amount of nodes, can be used on a single point connection for configuration and control and permits devices to send and receive messages simultaneously.
Mentioning how local electrical codes in many parts of North America require a means of power disconnection at the motor, Lenze-AC Tech VFD Product Manager Steven Dextraze states, “The minimal footprint of the SMVector with Internal Disconnect helps electricians, installers and OEMs meet those codes with one piece of equipment.” According to Dextraze, besides saving valuable real estate on the production line, the Internal Disconnect reduces equipment cost by eliminating the need for a separate external disconnect switch mounted in its own enclosure, and of additional wiring between the external disconnect and the SMVector drive.
“Drives purchased in NEMA 4X rugged enclosures are usually decentralized, installed close to the motor,” explains Steven Dextraze, and he continues, “now the user has the means of disconnecting motor power right there —no more searching for the circuit breaker panel located in a remote maintenance closet”. According to Dextraze the Internal Disconnect switch is lockable in the off position, allowing maintenance personnel to service the motor while it is still connected to the SMVector drive.
Describing the Internal Disconnect Switch as conforming to European electrical conventions, Dextraze states that this latest addition enhances the SMVector drive’s already vigilant system protection consisting of voltage monitoring, current monitoring, follower loss management and over-temperature protection.
Wednesday, September 10, 2014
“Energy consumption in drive systems is a major cost factor, especially in material handling applications with long running times, acceleration and lifting operations,” states Wayne Lazzerini, Mechanical Product Manager at Lenze Americas. “The MH series of motors, especially when combined with the right transmission, allow users to improve efficiency and significantly reduce energy usage—gaining efficiencies and increasing savings for Lenze customers.”
The IEC 60034-30 standard, Rotating electrical machines – Part 30: Efficiency classes of single-speed, three-phase cage induction motors, specifies the international efficiency (IE) codes for induction motors. In an effort to harmonize global efficiency levels, changes have been made to IE values to ensure consistency with international values. Beginning June 2011, the EuP (European Parliament) has mandated that electric motors in continuous operation with a power of 0.75 to 375 kW must be in efficiency Class IE2 or higher. For example, in round figures, the minimum efficiency for a 7.5kW motor is 85% at IE1 and 88% at IE2.
“Lenze high efficiency MH asynchronous motors operate within energy efficiency Classes IE1 and now IE2 for future compliance. Supplied in power ranges up to 45kW, customers can count on right sizing, not oversizing, by selecting precisely the functional range desired for the application from this new range of well-designed L-force three-phase motors,” adds Lazzerini.
“Together with the Controller 3200 C, the Servo Inverter i700 constitutes the heart of the Lenze controller-based automation system for machines with central motion control,” states Joel Thomas, Business Development Sales Engineer, Lenze Americas. “The reduced space requirement, lower number of components, and simple ease of assembly help deliver customers a significant boost in productivity.”
The Servo Inverter i700 single-axis and double-axis modules offer a power range from 0.37 to 15 kW, along with appropriate power supply modules. Plug connectors enable easy wiring. Under normal operating conditions the power supply modules do not require filtering or DC fusing, and have a built-in dynamic brake chopper. Intermediate electrical connections between the i700 drives are cable-free, using an innovative rail system, and are easily installed by setting connector arms.
Lenze offers a variety of i700 cooling technologies, including cold plate, push-through technology, and panel mounted units. Supporting the full spectrum of motor technologies, from standard 3-phase motors to synchronous servomotors, the i700 uses a single interface for simple engineering. The dynamic motor control is suitable for a wide range of applications.
Intuitive software tools and a central engineering interface, make it simple to integrate the i700 into automation architectures through EtherCAT. Automatic download of parameters and firmware, along with auto-tuning functions, ensure fast commissioning. Additionally, the i700 features integrated safety functionality to simplify the machine design. "Safe Torque Off (STO)" is provided as a standard feature. In order to implement extended safety networks, Lenze offers variants, for example, SS1, SS2, SOS, SLS, SDI or SLI, which achieve the highest safety level (SIL 3, PL e) over EtherCAT (FSoE).
“The i700 brings Lenze’s ‘easy generation’ engineering to multi-axis applications,” adds Thomas.
“Our extensive portfolio of integrated gearboxes, motors and motor inverters opens up a wide range of solutions for decentralized drive tasks,” states Craig Dahlquist, Product Leader Applications Engineer, Lenze Americas. “The upgraded 8400 motec drive delivers easy Ethernet communication, without any detours, which offers significant benefits over conventional bus systems.”
The 8400 motec inverter drives are power dense, energy efficient and a dynamic solution for controlling motion at the source. Suitable for applications in plants covering large areas, in particular for decentralized drive solutions in the power range between 0.37 and 3 kW, the 8400 motec inverter constitutes a robust mechatronic unit that offers optimal plant flexibility. The sophisticated design structure comprises three modules—a drive unit, communication unit and wiring unit. The compact size and IP 65 protection rating make the 8400 motec suitable for screw mounting outside the control panel directly on or near the motor—enabling quick commissioning and space savings in the control cabinet.
In comparison with conventional bus systems, which have one data bundle for each separate node, the 8400 motec inverter eliminates the need for extra hardware and an "interpreter" between various protocols. The addition of direct I/O connections to PROFINET and EtherCAT to the communication unit simplifies the process of integrating decentralized Lenze drives into the control system.
“By clarifying the plant automation architecture and streamlining hardware requirements, we are able to drive down total cost of ownership—and bring Lenze ‘easy’ engineering to more of our customers,” adds Dahlquist.
“Simplicity and flexibility of configuration are clear advantages of the enhanced 8400 TopLine inverter drives. The axis bus enables easy construction of direct and cascade configurations. This optimizes the bus bandwidth through synchronization at the hardware level,” states Craig Dahlquist, senior applications engineer, Lenze Americas.
Designed for applications using electrical shafts for synchronization, two fundamental topologies can be constructed using the 8400 TopLine automatic axis bus system. In the first scenario, all drives in the network are connected to the higher-level master controller, with data being exchanged between the axes. Alternatively, an architecture in which only one axis bus master acts as the link to the controller is appropriate, when the controller only needs to supply a small amount of information to the group of axes.
The Lenze 8400 BaseLine, StateLine, HighLine and TopLine versions are a scaled series of frequency inverters to exactly match speed and torque requirements. In addition to the automatic axis bus, the 8400 Topline inverters incorporate L-Force control and software to deliver high dynamic performance and intelligent features, including memory modules, online diagnostics and optional integrated safety systems.
Available in 16 power levels ranging from 0.37 to 45kW, the 8400 TopLine can perform at up to 300 cycles per minute with 0.01mm accuracy in continuous positioning tasks, pick-and-place, storage and retrieval units, rotary and lifting modules, as well as handling systems. Featuring an energy-saving V/f characteristic control mode (VFCplusEco), the 8400 TopLine ensures optimal motor voltage and operational efficiency.
“The 8400 TopLine is an easy choice for high power efficiency and control of synchronous motors in virtually any application where high precision, dynamics and speed are required, adds Dahlquist.