Multi-MIG Welding Inverters monitor arc conditions.
Press Release Summary:
Software-driven, Axcess(TM) 675 provides output of 675 A/44 V at 100% duty cycle, making it suited for large welds requiring long cycle times. Voltage range in CV mode is 10-44 V with 80 Vdc max open circuit voltage. Auto-Line technology enables machine to accept any primary power from 190-630 V, single- or 3-phase, 50 or 60 Hz. Auto-Axcess 675 offers same features but communicates through internal digital-to-analog converter, gaining functions such as Auto-CAL(TM) and Auto-Thread(TM).
Original Press Release:
Miller's New Axcess(TM) 675 is World's Largest Welding Inverter Power Source
675 amps at 100% duty cycle for heavy duty manufacturing applications
System combines flexible power conversation hardware with welding software
The most powerful member of industry's only full line of software-driven systems
APPLETON, Wis., June 1, 2004 - Miller Electric Mfg. Co. has completed the Axcess(TM) platform of power supplies for advanced MIG welding applications with the introduction of the most powerful inverter in the world - the Axcess(TM) 675 and Auto-Axcess(TM) 675 multi-MIG welding systems.
Axcess is the next generation of Miller inverters. Axcess 675 follows the successful unveiling in 2003 of Axcess and Auto-Axcess 450, and the introduction of Axcess and Auto-Axcess 300 earlier this year. The software-driven controls of Axcess operate hundreds of times faster than previously available technology, monitoring arc conditions nearly continuously. With its faster response rate, it can sense arc conditions and correct fluctuations before they can adversely affect the arc, causing excessive spatter or an unstable condition (arc wandering).
"Axcess provides an optimized arc for every MIG welding process, improving weld quality and productivity," said Randy Broadwater, product manager, Advanced Process Systems Group. "This includes traditional spray, pulsed and short circuit transfer MIG as well as two innovative Miller hybrid processes, Accu-pulse(TM) and optional Regulated Metal Deposition (RMD(TM))."
Broadwater said Axcess 675 is designed for the toughest manufacturing and high power level production welding applications: construction and mining machinery and high volume, long or continuous welding applications. "Axcess 675, with an output of 675 amps/44 volts at 100 percent duty cycle, is ideal for big welds that require long cycle times," he said. Voltage range in the constant voltage (CV) mode is 10 to 44 volts with 80 VDC maximum open circuit voltage. The units measure 39 H x 17 W x 22.5 D (inches) and weigh 208 lbs.
Axcess systems should be seriously considered for any application where competitive pulsing equipment or older Miller pulsing equipment such as 60M Series systems or AutoInvision equipment has been used in the past, Broadwater said.
Revolutionary Concept
According to Broadwater, Axcess 675 combines flexible primary power conversation "hardware" featuring Auto-Line(TM) technology with welding application "software." Through software changes, the system can produce optimized arc characteristics that offer a choice of welding transfer modes right out of the box with minimal set-up. "I believe the Axcess multi-MIG series is the most significant development in arc welding technology since the invention of the inverter," he says. "The hardware remains fixed while the software provides the flexibility for users to take advantage of multiple MIG transfer modes at any time while welding, or upgrade as needs change or new programs are developed."
All Axcess systems use identical software providing consistently repeatable results from system to system. Axcess power supplies come standard with programs for steel, stainless steel, metal core and aluminum wires with the most common gas mixtures for Accu-Pulse, common pulsed MIG and (optional) RMD. Accu-Pulse is a hybrid constant voltage (CV) and constant current (CC) controlled pulsed spray transfer process that offers dramatic results in performance. Accu-Pulse provides a tighter arc length providing more control. Accu-Pulse rapidly adapts to the joint condition, reducing arc wandering and spatter, while at the same time allows for increased deposition rates. RMD is an optional ultra-low heat input, low spatter, hybrid short circuit transfer MIG welding process, ideal for filling gaps and welding thin materials.
Miller anticipates 95 percent of all welding applications will be met with existing software programs "out of the box." For exceptions, an existing program can be fined-tuned using Miller's optional WaveWriter(TM) graphical software, which is designed for a standard Palm® handheld that has a data card slot (see photo). This eliminates the need for laptop PCs and bulky remote pendants. It also allows developing custom programs, such as for specialty gas mixes or custom wire alloys.
Miller's exclusive Auto-Line technology enables the machine to accept any primary power from 190 V through 630 V, single- or three-phase, 50 or 60 Hz. Auto-Line can improve weld quality and repeatability by compensating for common primary power voltage variations caused by large loads starting on the same line and even some seasonal line fluctuation "brownouts."
Automation Ready
The Auto-Axcess 675 provides all the process benefits of the Axcess 675, with several automation benefits. Axcess systems communicate internally on a digital network using Device Net(TM), an internationally recognized and open industrial protocol. This is in contrast to some manufacturers who have chosen to develop their own proprietary patented and trademarked protocols. Aside from the arc performance benefits, digital network technology can also provide enhanced diagnostic capabilities. It also enables future integration with manufacturing plant networks and controls by allowing production or arc data gathering. Today, the large majority of existing robots currently in production, as well as new robots, communicate using analog signals. With Auto-Axcess it is possible to communicate through an internal digital-to-analog converter, and gain the most important benefits of welding performance, including features like Auto-CAL(TM) automatic calibration for reducing set-up time and errors, integrated touch sense, Auto-Thread(TM) programmable wire jog length, and many more.
The Axcess 675 multi-MIG system is covered by Miller's True-Blue three-year factory warranty. To download a product spec sheet, visit Miller's Web site at MillerWelds.com. For more information or the Miller distributor nearest you, call 800-4-A-MILLER (800-426-4553), e-mail info@millerwelds.com, fax 877-327-8132, visit the Web site or write to Miller Electric Mfg. Co., P.O. Box 100, Lithonia, GA 30058.
With headquarters in Appleton, Wis., Miller Electric Mfg. Co. is a leading worldwide manufacturer of Miller and Hobart brand arc welding equipment and related systems for metalworking, construction, maintenance and other applications. Miller Electric is a wholly owned subsidiary of Illinois Tool Works Inc. (ITW), Glenview, Ill. ITW is a diversified multinational manufacturer of highly engineered components, assemblies and systems
