Rotary encoders with functional safety are becoming more important in factory automation applications. Certified safety rotary encoders from Pepperl+Fuchs enable simple integration in applications with high safety categories up to SIL3 (in accordance with IEC 61508).
In this example, a safety relevant application is shown. The certified, functionally safe rotary encoder detects the rotational motion of a pipe-cutting saw. The rotary encoder provides safe operation of the machine, as required in accordance with the standards listed in the machinery directive 98/37EG and also in accordance with the new directive 2006/42/EG and IEC 61800-5-2.
Wednesday, December 23, 2009
Pepperl+Fuchs Rotary Encoders with Functional Safety
Pepperl+Fuchs Retro-Reflective Area Sensor
The new RLG28 retro-reflective area sensor from Pepperl+Fuchs has a 60 mm constant detection field and a resolution of 12 mm over a range of 0...4 m. RLG28 allows the consistent detection of small objects within the entire detection area.
The sensor is an ideal replacement for current standard products that do not fully satisfy requirements. Installed in a standard 28 series photoelectric sensor housing, users can replace their existing 1-beam solution 1:1 with a 100 % problem solver without modifying the control concept.
Areas of application include the material handling, packaging and automotive industries.
The RLG28 specializes in the reliable detection of object front edges such as different types of pallets, sacks, packaged or reflecting goods. The sensor is also suitable as an ejection control for falling objects, an overhang control, e.g. by way of deformed blocks, and can also be used as a muting sensor.
Pepperl+Fuchs AS-I G11 Modules with Innovative Clean Housing Design
The AS-Interface field modules offer an innovative clean housing concept in a robust, compact, round design, and are particularly suitable for assembly machinery and process automation applications.
Cleaning processes involving steam cleaners, pressure washdowns, and high mechanical stresses do not affect the performance of G11 modules. You can connect sensors and actuators to an AS-Interface quickly and easily, even under these harsh ambient conditions.
Advantages of the AS-Interface G11 modules:
- No more troubleshooting, because overload conditions are indicated directly at the affected M12 port.
- Secure mounting and robust materials for extra durability
- Device fits into every corner due to compact, round design
- Steam cleaning or pressure washdowns never pose a problem due to radial O-ring seals with IP68/IP69k protection
- Connected to AS-Interface directly on the module or via AS-Interface passive splitter and M12 connection
Friday, December 18, 2009
Crydom DRA Series SSR Assemblies & DRS Sockets
Crydom, a company of Custom Sensors & Technologies (CST) and global expert in Solid State Relay Technology, introduces a new line of DIN Rail mounted Solid State Relay Assemblies and Sockets for Single Channel and Four Channel Applications. Mounting to standard 35 mm DIN Rail, the DRA series feature a variety of Industry Standard Crydom Single-in-Line AC and DC output SSRs in “ready to use” assemblies.
DRS Sockets, shipped in kit form, are available in 3 different input configurations including 3 to 15 VDC & 18 to 30 VDC each featuring LED input status indicators, and a 3 to 32 VDC or 90 to 280 VAC version without input status indicator.
DRS1 Single Channel and DRS4 Four Channel sockets accept Industry Standard SIP type SSRs such as the Crydom CX and CMX series. Crydom DRA and DRS Assemblies and Sockets offer the user a wide range of standard output and control ratings as well as the option for customer specific adaptations.
Phoenix Contact CLIPLINE THERMOMARK X1.2 Thermal Transfer Printer
Phoenix Contact's THERMOMARK X1.2 thermal printer combines the industrial mechanics of the THERMOMARK X1 with the ability to print on endless shrink sleeves like the THERMOMARK W1.
Features
- The new material holder allows for center alignment as the material feeds through the print head. That means you no longer have to adjust the optic eye for every change in material.
- A firmware upgrade allows for less waste when aligning the material.
- The newly designed cutter (purchased separately) has the ability to perforate as well as fully cut endless shrink sleeves.
- Like all Phoenix Contact printers, it runs on CLIP PROJECT marking software.
Phoenix Contact QUINT SFB 48VDC/10A Power Supply
The new QUINT SFB 48 V DC/10 A power supply is the latest offering in Phoenix Contact's QUINT SFB power supply line. This power supply extends the range of applications where Selective Fuse Breaking (SFB) technology can be implemented. The SFB technology can now be used to trigger standard power circuit breakers reliably and quickly.
Features
- Worldwide input voltage range - 85-264 V AC and 90-350 V DC
- Adjustable output voltage of 30-56 V DC - Wide range of applications
- Power Boost - 13 A Power Boost provides ample current for starting additional loads
- Extended diagnostics - Indication of both DC OK and Power Boost Modes
Tuesday, December 15, 2009
Phoenix Contact M12 Connector for Fiber Optics
The de-facto standard in signal transmission can now be used for quick data transmission with fiber optics as well. The new M12 fiber optics connectors from Phoenix Contact now offer especially small connection solutions that can be used for the connection of POF, PCF and GOF fibers.
The IP65 and IP67 degrees of protection make the connectors ideal for use in the industrial environment. The design of the connectors protects the sensitive ferrules and fiber end surfaces during contacting and assembly.
Alternatively, pre-assembled lines are also available. Panel feed-throughs with an integrated transceiver or couplings can be used for the integration of the M12 fiber optics connection into electronic or control cabinet housings. The transceiver integrated in the panel feed-through allows direct opto-electrical conversion.
Steven Engineering YouTube Channel
Phoenix Contact BLOCKTRAB Universal Surge Protection
This Type 3 arrester for 230 V termination devices can be mounted anywhere, including in installation or distribution boxes and in the wiring spaces of devices or socket strips. Phoenix Contact's BLOCKTRAB can be mounted on any level surface using fixing clips.
2.5 mm² spring-cage terminal blocks with direct plug-in method offer easy installation with minimum wiring. Two conductors can also be connected to each of the double terminal blocks by means of through-wiring.
Since the protective circuit does not influence the test result, there is no need to disconnect the arrester to conduct insulation tests in the system.
Monday, December 14, 2009
Pepperl+Fuchs Incremental Rotary Encoders with Integrated Safety Technology
Pepperl+Fuchs introduces RVS58S Incremental Rotary Encoders with integrated safety technology. RVS58S encoders with self-diagnostics are specifically designed for use in safety aligned systems up to SIL3 in accordance with IEC 61508, performance level “e” in accordance with IEC 13849, and Category 4 in accordance with DIN EN 954-1. They are also suitable as a motor feedback system for safe drives in accordance with IEC 61800-5-2.
“In view of the increasing level of automation in applications involving machinery and plant construction, plant manufacturers, system integrators, and suppliers see themselves obligated to increase functional safety. Specific framework conditions create new and extended safety standards that take into account the requirements of modern electronic safety systems. Against this backdrop, rotary encoders with functional safety take on a new significance. These encoders simplify integration and at the same time comply with all safety requirements,” says David Rubinski, Product Manager.
In response to these needs, Pepperl+Fuchs developed the RVS58S rotary encoder with functional safety that enables economical system integration. This new concept provides easier connection methods to the control system and allows it to be used in high safety category systems. Technically speaking, RVS58S incremental encoders have a sin/cos interface, 1024 or 2048 signal periods, and are thermally stabilized for high resolution interpolation. They operate at 5 VDC ±5% and deliver a maximum output frequency of 200 kHz in operating temperatures ranging from -20 °C …80 °C (253 K …353 K). They are rated to handle axial shaft loads of 40 N at maximum 6000 RPM or 10 N at maximum 12,000 RPM, and radial shaft loads of 60 N at maximum 6000 RPM or 20 N at maximum 12,000 RPM.
“When it comes to plant safety, specifying safe system components is vital. Sensors such as safe rotary encoders, which stand right at the start of the information processing chain as quasi sense organs, undertake important functions. Certified rotary encoders with simple integration concepts not only render safety solutions easier to implement, they are also more economical,” says Rubinski.
The industrial landscape is populated with ever faster high-performance machines, in whose environment a whole range of robots and automatic feed systems are also operating in order to ‘unload’ the operating personnel. In any application where such systems are in use and moving machinery parts are driven by high-performance systems, there is the potential for danger to the operating personnel. According to the Machine Directive and relevant safety regulations for health and safety in the workplace, even brief lapses in attention must not result in shearing, crushing and impact injuries - or worse. The preferred use of rotary encoders in such applications is to monitor rotating or swiveling components in drive systems, making them a core safety consideration in drives.
In order to keep the expense of safety measures within limits, rational safety concepts will increase in importance in the future. Consequently, in this context the functional safety of individual system components, such as rotary encoders, assumes new significance. This transpires against the background of a changing situation with regard to standards, since the standard EN 954-1, which has been binding since 1996, remains valid only up to 29.12.2009.
The deterministic approach of EN 954-1, of countering the deduced risk categories by means of an appropriate system behavior, will now be superseded by the more effective standards EN ISO 13849-1 and EN 62061. With their consideration of failure probabilities (probabilistic approach) these are also more in keeping with the requirements of modern programmable electronics, which has long been subject to the considerations of safety technology. The IEC 61508 serves as the higher-level standard for functional safety.
Since the architecture determines a significant proportion of safety costs, smart ideas can reduce these costs while even increasing the efficiency of sensor-system safety. The use of mechanisms featuring two-channel operation, without completely duplicated execution of the functional units, is an effective approach. However, even systems with two rotary encoders or a dual encoder do not necessarily have to be classified according to the new standard. In order for a sensor to receive a high safety evaluation, it must be ensured that the Safe Failure Fraction (SFF) and the degree of Diagnostic Coverage (DC) are appropriate to comply with the minimum requirements. Self-diagnosis implies that the device is able to detect its own fault conditions and then reliably communicate the same. In this way machines and control systems are able to immediately carry out a defined stoppage, before subsequent failures of any kind can lead to a dangerous situation.
"Simple integration of components is necessary to help machine manufacturers meet the safety requirements of the new standards, as it is for end users with retrofit installations. The safe encoders now available from Pepperl+Fuchs feature both technical updating of the architecture and a simple user interface that needs no additional cables, interface cards or safety modules. The sensors are mechanically compatible with standard components and use existing communication paths – this is the key to simple integration,” explains Rubinski.
Pepperl+Fuchs is a world leader in the design, manufacture and application of high quality factory and process automation products and services. Pepperl+Fuchs pioneered the development of proximity sensors 50 years ago, and has set the standard for innovation and quality ever since.
Pepperl+Fuchs, 1600 Enterprise Parkway, Twinsburg, OH 44087; (330) 486-0001; fax: (330) 405-4710; fa-info@us.pepperl-fuchs.com; www.pepperl-fuchs.com.
Tuesday, December 8, 2009
SMC Pneumatics IDW Pro Dry Heatless Desiccant Compressed Air Dryers
Inspired by its sophisticated predecessor, SMC can now boast an additional ten models to enhance the current Pro Dry range with the addition of the IDW Heatless Desiccant Compressed Air Dryers.
With flow rates from 4 scfm (7 Nm3/h - 1.94 l/s) to 365 scfm (620 Nm3/h - 172 l/s), the entire range can operate at -40ºC (-40ºF) pressure dewpoint as standard, with an option of -70ºC (-100ºF) for more critical applications. The range has been designed and engineered to meet the air purity class in accordance with ISO 8753:1-2001 (E).
The units have an intelligent diagnostic system installed as standard on each model which is bespoke to SMC. Ease of service has been foremost in the design. Each unit can be serviced without disturbing the surrounding pipework. Desiccant cartridges can also be changed out effectively without causing excessive down time.
The compact size of the Pro Dry ensures that installation is simple and versatile. The units can be installed in small spaces in either a vertical or horizontal position.
To complement its vast range of operational features, Pro Dry (models IDW4N-IDW35N) can also be floor or wall mounted. Models IDW4N-IDW35N have multiple porting options, with a total of six inlet/outlet connections and many pipework possibilities.
Benefits
- Economical to Use - SMC high performance dryers provide a host of financial benefits such as an integral electronic drain and service interval indication, all of which are included in the standard dryer package.
- Clean & Dry Air - With XA grade 0.01 micron oil removal filtration (supplied as standard on models IDW4N-IDW35N), an integral 1 micron dust filter and a choice of -40ºC (-40ºF) or -70ºC (-100ºF) pressure dewpoints, Pro Dry meets and exceeds the highest standards of purity as specified in ISO 8573:1-2001.
- Worldwide Installation - The units can recognize any voltage between 100-240 VAC and also any voltage between 12 to 24 VDC, meaning the Pro Dry can be operated anywhere in the world.
- Intelligent Processor - All dryers are built to be fully compliant with all approvals. A feature of each unit is an intelligent in-built central processing unit (CPU). The optional software interface package provides a sophisticated system which allows for remote interrogation of the dryer. The CPU is serialised and is housed in an IP65 rated enclosure.
- Energy Management - Pro Dry offers a multitude of additional energy saving features, which allows the dryer to be linked with a compressor control system and reduces air consumption during periods of low demand.
- Condensate Management - Condensate management is essential to maximise dryer efficiency. Pro Dry is supplied with an integral electronic drain valve which is operated and controlled by the CPU. This drain valve opens at the end of every cycle when an indicator illuminates and the CPU checks for any sign of malfunction in the dryer. Operation of the unit is viewed by the diagnostic control panel located on the front of each unit.
- Desiccant Cartidges - An improved desiccant cartridge design with integral handle facilitates a simple and clean change out procedure.
Monday, December 7, 2009
Turck BL Compact Modular I/O System
TURCK’s BL Compact system is a revolutionary modular I/O solution for collecting a variety of signals in a single, rugged node on a network. Rather than routing all signals through a control cabinet, this device makes it possible to obtain analog, digital, thermocouple, RTD, serial, RFID or a mixture of signal types in a compact, machine-mountable device over DeviceNet™, CANopen and PROFIBUS ®.
Up to two signal types can be combined in any combination in the BL Compact system, including RFID and analog, digital and serial—and more. The BL Compact system may be customized to suit a user’s specific needs, so that devices may be added to an existing network and signals may be gathered on the machine without an enclosure.
This drop-in solution can be used to connect up to 16 devices—drastically reducing the time it takes to run wires for each device back to the control cabinet and the potential for wiring errors.
The BL Compact system is currently available with four, eight or 16 ports in an environmentally hardened package that is rated for IP 68 and 69k protection. M8 or M12 connectors for bus communication and auxiliary power facilitate easy installation into any application, existing or new.
Friday, December 4, 2009
Harting LC Fiber Optic Cable Assemblies
Harting's LC fiber optic cable assemblies are ideally suited for long distance, high data rate signal applications. The connectors, cables and cable assemblies are all fully rated for outdoor use, with an IP 67 rating.
Three new cable assemblies have been introduced:
- PushPull LC Duplex Multimode - Contains a small, easy to use PushPull interface
- Han 3A Hybrid LC Duplex Multimode - Hybrid configuration eliminates separate cables, saving panel space and reducing installation time
- Han 3A 2 x LC Duplex Quattro - Has a small interface for 4 LC fiber channels, ideal for daisy chain applications
All standard assemblies are available from 1m to 100m, with double and single-ended assembly options.
Harting IP 67 Rated D-Sub Hood
Harting's new D-Sub Hoods allow you to achieve IP 67 rated protection while using standard D-Sub connectors. When mounted, the hood surrounds the mated connection and an "O" ring is compressed when the locking screws are tightened, achieving a waterproof seal.
D-Sub hoods are available for standard 9, 15, 25, 37 and 50 pole versions and corresponding high density versions 15, 26, 44, 62 and 78 pole versions. Like Harting's existing IP 67 hood range, these new hoods are available in black plastic or metalized plastic versions, with the choice of 4-40 UNC or M3 for the mounting screws.
Harting Han 3A HPR Hood
The Harting Han 3 HPR High Construction Hood is ideal for electrical connections in vehicles as well as in applications with harsh climactic conditions and wet areas, or where sensitive connections require protection or shielding.
The high construction makes it possible to install the Han 3A Quintax insert and to use it in applications requiring an IP68 environmental rating.
Large cable diameters resulting from up to 8AWG conductors may now be used with Harting's Q 2/0 inserts and the M25 cable opening. Also, many wires used with the Q 12/0 inserts will now fit with fewer restrictions into the M25 hood opening.
Lastly, there are many 3A sized inserts that benefit from increased wiring room and the larger cable opening that the Han 3 HPR hood offers.
Red Lion Controls PAXDR Dual Rate Meter
Red Lion introduces the newest member of the PAX family: the PAXDR Dual Rate Meter. The meter can measure two different rate inputs as well as calculate and display the ratio, draw or difference of the rate inputs. The meter’s LED display has 0.56" digits, available in red sunlight readable or standard green. The display intensity is adjustable for low-level lighting conditions up to sunlight readable applications.
The PAXDR is a 5-digit Dual Rate Indicator and 6-digit Dual Totalizer in a single meter. Two Rate and two Total displays are provided (A and B), along with two additional calculation displays (C) to show the Sum, Difference, Ratio, % of Total or Draw between A and B displays. Any of the six displays are viewable: A, B or C Rate and A, B or C Total. The meter has two signal inputs from which the Rate and Totalizer values are derived. For the Rate displays, up to 10 point scaling is provided for each input, to scale non-linear rate processes. Separate scaling is provided for both the A and B Totalizers. The independent scaling allows for Rate only, Totalizer only or combination Rate/Totalizer applications, with or without the calculation displays.
The capability of the PAXDR can be easily expanded with the addition of field installable plug-in option cards. The PAXDR accepts the same option cards as our other PAX meters. These cards provide setpoint control, communications and retransmitted analog output.
Phoenix Contact TRIO-UPS Industrial PC Uninterruptible Power Supply
The new TRIO-UPS is optimized for use with industrial PCs. When used in “PC Mode” with an industrial PC, the TRIO-UPS has an adjustable DC voltage output time function. This allows the user to ride through short duration interruptions of mains power without resetting the PC with the remote reset function commonly implemented with industrial PCs.
Additionally, after the PC is safely shut down during its normal procedure, the TRIO-UPS cycles DC power to the industrial PC, automatically restarting it. This eliminates the need for a technician to manually restart the PC. A configuration and diagnostics software package makes it easy to configure alarm set-points, delay times and hold-up times. The software also allows real-time monitoring of the UPS status, including battery mode, charge mode and battery capacity.
The TRIO-UPS includes both charge unit and 5 A power supply in one compact package, providing a high density solution.
Features
- Power supply and UPS in one package
- 24 V DC/5 A output
- Selectable back-up time
- Adjustable output
- 22.5-29.5 V DC
- Programming and diagnostics software
- Configuration stick for offline programming
- Selectable alarm set-points
- Selectable delay and hold-up times
- Real-time status monitoring
- Remote diagnostics
Thursday, December 3, 2009
Rittal Industrial Buyer's Guide Catalog
Rittal Corporation’s new Industrial Buyer’s Guide is filled with enclosure and climate control products as well as a wide array of accessories geared specifically toward meeting the challenges faced by US and North American customers.
Schneider Electric Product Discontinuances
Telemecanique Integral 18 and 32 Motor Starters
Schneider Electric has announced that the Telemecanique Integral 18 and 32 (18A and 32A) Motor Starters will become obsolete on December 31, 2009. The TeSys U 32A Self-Protected Starters were designed to replace these 18 and 32 Motor Starters.TeSys U offers more simplicity with easier installation, choice and use, and helps reduce costs due to a smaller footprint, state of the art design, and energy efficient coil.
Telemecanique Integral 63 Manual Motor Protector
Schneider Electric has announced that the Telemecanique Integral 63 Manual Motor Protector combination will become obsolete on December 31, 2009. The TeSys D65A (LC21D65A) and TeSys GV 65A Manual Motor Protector (GV3P65) were designed to replace these 63A Motor Starters.
Rittal Product Discontinuances
In an effort to streamline their current product offering, Rittal GmbH has devised a plan to reduce the number of overal parts within the Rittal product catalog over the course of the next year. Prominent products being discontinued include, but are not limited to:
- CP - The RAL 7030 (stone gray) versions of the CP-L and CP-XL Support Arm product lines will be discontinued. The RAL 7024 (graphite gray) versions will still be available.
- CP - The Quickline Panel will also be discontinued. Note this includes the recently launched product featured on page 31 in the Innovations 2009 catalog.
- IN - RiLAN Industrial product line discontinued.
- IW - Various industrial worktop products will be discontinued (some still available as a special order) including 2000mm wide worktops and those worktops prepared for turntable, CP-L, or pedestal/PC attachment.
- TS - Discontinuation of all cable ducts other than those 2000mm in length.
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