![]() ![]() "If you keep this system tuned, it delivers for you," notes Wawa's Over, and management is developing the database that will refine maintenance procedures into a preventive and, eventually, a predictive routine. Quick response to faults resolves the immediate problem, but recording the source of the fault and the corrective action taken is essential if managers are to refine their approach to maintenance management. If it takes a minute to respond to a fault, there is quite a bit of lost production." Is it mechanical? Electrical? Thermal? That takes time, and the AS/RS was designed to run at a constant speed. When a fault occurs, you typically have to send an electrician and maintenance guy, and they have to trace the problem. "That level of sophistication usually doesn't exist. "Fault sensors are present, so when a motor shuts off, the system tells you why it faulted," Blouch says. When these signs of aging or wear exceed acceptable parameters, alarms are triggered, prompting a maintenance call. The voltage and current running through a motor and its thermal characteristics are measured, for example - not simply whether the motor is on or off. More than 500 smart devices monitor machine performance and feed data back to the warehouse's control room. A hiccup in the system can send ripples that affect the entire warehouse, and Wawa has a staff of 16 mechanics plus a maintenance supervisor and manager to make sure that minor glitches don't escalate into major disruptions. ![]() ![]() At the shipping dock, workers have 20 minutes to load each truck that will deliver that day's orders to the more than 500 convenience stores served by Wawa. ![]() Blouch spent five years on the Wawa project, the last 19 months on site fine-tuning the AS/RS's DeviceNet system to handle peak-period demands for incoming inventory and outgoing orders.Īt the front end, a 60-second shutdown in destacking cases is enough to back up conveyors to the dairy's fillers, forcing a shutdown in production. "It doesn't have a predictive or preventive function, but it does have a significant diagnostic capability," explains Michael Blouch, principal of Lebanon, Pa.-based Project Planners and Integrators. Bells and whistles like web page links and HMI interfaces that display all work orders, labor and parts costs and other information when a machine fault is detected are all well and good, but unless information is accurately recorded in the first place, those features are useless.ĭiagnostics without prediction The system installed at Wawa is providing some support for the warehouse's preventive maintenance program, according to Over, but information collected by PLCs currently isn't being downloaded to a CMMS. "It's got to be an extension of the maintenance team's day-to-day routine if it's going to work." It also needs to be tied to electronic procurement programs and business systems that track key performance indicators, Miller adds.Īutomatic requests for quotes and reports on equipment activity are among the expanded functions recently added to Wonderware's program, but application consultant Annette Knoflach concedes that, as with any database program, the primary user benefit with Avantis.Pro is easy access to centralized data. Were the symptoms and causes of a piece of equipment's failure known, and were the corrective actions recorded? "As with any database, it's a matter of garbage in, garbage out," allows Lyle Miller, a manufacturing solutions expert with Rockwell Automation. Now, five decades later, Goldilocks has expanded from a one branch operation, to the largest family-owned bakeshop throughout the Philippines, with more than three thousand employees, to meet the growing demand.CMMS's Achilles heel, however, is its reliance on accurate and consistent recording of events. Then in 1984, Goldilocks moved north, and opened a bakeshop in Vancouver, Canada. In 1976, Goldilocks opened its first shop in Los Angeles, California, USA. The name, “Goldilocks”, was a suggestion from their sister, Maria Flor, who believed that the fairytale name would be memorable, while bringing luck and prosperity. Keen on what the customers wanted, the sisters strove for excellence in whatever product they sold. At the helm of the company were three very industrious and enterprising women: Clarita Leelin Go, Milagros Leelin Yee, and their sister-in-law, Doris Wilson Leelin. How it all started… Based on the Philippine tradition of hospitality, good food, friendliness, fast service, and pleasant surroundings, Goldilocks opened its first bakeshop on along the Pasong Tamo Street in Makati, Philippines. ![]()
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