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This alarm occurs when an ECU is configured, but the communication with the ECU is not established or has dropped out - https://www.manualslib.com/manual/1602539/Comap-Intelilite-9.html?page=360#manual Suggest regardless of connections checked and parameters verified, things aren't chatting...

Similar challenge integrating FF into a rolling mill control scheme for strip thickness reductions where had been only FB control. Been several years ago but remember challenges ensuring the response rate of the FB system didn't get excited by the rate of the FF system when enabled, also IIRC...

My limited experience with European 230V, at least on the imported non-Americanized company-built plant equipment forced down our throats by the corporate design engineers across the pond striving for a universal one-size-fits-all everywhere machine design, was that both legs were hot respective...

As a complete aside, brought a chuckle remembering a similar issue with an oven damper system. The OEM's recommendation was to monitor the damper position feedback against the commanded direction (e.g. open/close) through the SLC500. If going the wrong direction or not going at all, simply...

Agree with user SwinnyGG from a maintenance perspective. Figure this thing is going to be worked on in the future, so which is the least time- and material-cost method to restore to like-new performance? Perhaps bringing to light a long-standing gripe - the stuff which performs beautifully...

eh, residential wiring isn't in my sandbox, but was advised when adding a sub-panel to a remote shed, that a ground conductor had to be run back to the main panel ground, making for a 4/C cable for 240V service, that a separate, independent, isolated ground rod at the shed was not allowed, at...

May quiz some of the engineering firms which installed Selective Catalytic Reduction (SCR) systems at coal-based power plants for any expertise. We had 6-80,000 gallon tanks put in, but tanks were brought in and storage temperature was atmospheric... Black and Veatch out of Kansas City MO were...

Without further information, suggest odds are better than average that one will find the weak link in a hurry when tied together, in rather dramatic and perhaps career-ending fashion. Synchronization requires that voltage, frequency, rotation, and phase be within tolerances to gain the...

While kinda already been said, PF correction can increase the margins for in-plant switchgear, subs, and MCCs approaching their bus amperage limits, due to various equipment added-on through the years.

For better or worse, going with Magnatek for 480VAC crane and hoist applications, and Yaskawa for other general-duty 480VAC applications. Pleased so far... Agree with a previous post about Allen-Bradley / Rockwell now seeming to have reliability challenges in a heavy industrial environment -...

Suggest that whatever you program or build, leave a trail of bread crumbs so that others can easily understand what's going on. Leave plenty of comments in the logic to explain the intent of blocks of code. Never make anything more complicated than it needs to be. What may be technically...

FWIW, had a Rockwell Powerflex700 system on a bridge crane with this type of common bus system. Believe the drive model numbers started with 20PD...., not sure about the inverter model. Three drives - 50hp bridge, 20hp trolley, 100hp hoist - on a common DC bus. Perhaps a unique experience...

In a hopper filling application - the low and high can be used as the signals to start and to stop filling. The low-low and high-high can be used to stop the process to avoid either running the hopper empty and upsetting the recipe, or to prevent overfilling the hopper. During typical...

It seems one thing overlooked is the effect of the number of starts on its life. IIRC, 3 hours is allowed for each start - I suppose a good reason to control how often the lamps are flipped on and off.

My experience with the HSDS was the ongoing failure of the drive system and not so much the infrared scanner itself. This posed problems as maintenance could not be performed while the boiler fans were on. Just tossing this out, but was thinking about utilizing an extra sootblower lance/drive...

Thanks, jraef - I agree that's the common terminology - but geez Louise, in this day of political correctness and sensitivity training - the Human Relations people as well as the non-electrical types sure do raise their eyebrows high when that item is discussed. But - that's entertainment for...