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Monthly Archives: February 2013
700 Horses….replaced!
A few days ago, a fresh water treatment facility in the tidewater area of Virginia, had two aged 350 H.P. VFDs fail catastrophically. That left them with only an auxiliary pump and about 30% of their capacity. A call was made to … Continue reading →
An Ageing Power Supply Finally Gives Up!
Power Supply Nearing 40 Years Old, Finally Fades Away Recently a large industrial client had Delta investigate why its’ B266 reed relay output cards had been failing. Keep in mind these output cards are almost 40 years old. Over the … Continue reading →
Posted in Delta company news, Delta service advantages, modicon, On-site stories, Remote I/O, Service stories, Tech Tips
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Tagged 384, auxiliary power supply, B 266, card, channel, contacts, Delta Automation, I/O, Modicon, output, output card, P-421, P-451, power supply, reed relay, remote I/O, repair, Richmond VA., ripple, shorted
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Dual Cable ModBus Plus Network Phantom Errors
ModBus Plus Dual Cable Phantom Errors The advantages of utilizing the dual cable capability of the Modicon Modbus Plus system are to increase and maintain system uptime and availability. The dual-redundant nature of the system is virtually invisible to the … Continue reading →