For over three decades, Huntington Beach, Calif.-based Circuit Automation, Inc., has been a leading provider of liquid photoimageable solutions. The company combines integrated design, manufacturing, and technology to provide high-quality, fully automatic coating and drying equipment, services, and support to manufacturing organizations worldwide.
Recently, when a global conglomerate with PCB manufacturing facilities in China made a strategic decision to go after new business in the smartphone sector, they turned to Circuit Automation. “The PCB manufacturer’s existing process was not providing satisfactory results, so they decided to look into our process, a double-sided fabrication photo mask for printed circuit boards,” says Yuki Kojima, vice president, operations, at Circuit Automation. “We eventually delivered a machine whose original design was done maybe a decade ago, but with redesigned control systems to meet the more demanding requirements of this customer.”
According to Kojima, the machine employed about 12 axes of servo; in the original design, the sheer volume of wiring, particularly for the safety functions, was problematic. “I decided to use the Omron CJ-Series PLC with a MECHATROLINK-II position controller card and put Omron G5 servo drives on that system bus,” he says. “For I/O we use the DeviceNet bus system, and added the Omron NE1A safety PLC on that bus.”
Since the Omron servos have built-in safety circuits, the machine panels were significantly reduced in terms of the number of components they contained. All the safety relays were no longer needed. “Using the MECHATROLINK-II solution the wiring from the drive to the controller was significantly reduced, as was the wiring from the safety PLC,” notes Rob Sepa, account manager at Omron Industrial Automation. “Circuit Automation shipped the redesigned machine using the original design panels, and only used about 40 percent of the real estate inside them.”
Frontline Success
At the customer’s request, the machine was shipped to China before it was complete; Circuit Automation was scheduled to install and customize on site. “Because everything was new in this design, there were some functions and mechanisms that were new to us as well,” says Kojima. “During the install, we had problems with some items due to our lack of experience with the new technology; I was stuck with the machine down and didn’t know what to do.”
So Kojima contacted Omron Industrial Automation. “It was really good that I picked a global company like Omron,” he says. “If this had been some company where I couldn’t get service in China, I would have been in real trouble.”
Kojima continues, “It was remarkable—this guy showed up with an Omron tag on his shirt. He saved the company. I hadn’t bought these items from Omron Shanghai, but since the product is Omron, they stood behind it and helped resolve the problem. Even in a remote place in China, I could get the service I needed.”
Up and running since summer of 2011, the new machine has been very well received by Circuit Automation’s customer. “The client is very happy,” says Kojima. “First, they are able to make products they couldn’t before, which is helping them reach the smartphone market. Second, they are very safety conscious, and highly pleased that we used a ‘smart safety system’ on the machine.”
The installation was so successful that the customer ordered a smaller, semi-automatic version of the same machine to use for testing and R&D projects. That machine has already shipped. A third machine, the same as the first but with Ethernet capability, is being programmed for the customer right now.
Better from the Get-Go
