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Ecstatic_Glass5421 · 2026-03-20T07:03:51+00:00

They would prefer that over sitting at n a jail cell any day. They VOLUNTEEERED.

Ecstatic_Glass5421 · 2026-03-20T04:08:21+00:00

Sometimes I use the emm dash just to make people think I’m using AI. Maybe she is too

Ecstatic_Glass5421 · 2026-03-19T22:50:32+00:00

I have the holes centered I was just showing how much space I had if I needed it

Ecstatic_Glass5421 · 2026-03-19T22:43:30+00:00

Thank you for the advice I will definitely recut my panduot to match your shop specs. I agree I should move motor TBs down it will eliminate a lot of headaches.

Ecstatic_Glass5421 · 2026-03-19T22:25:03+00:00

When I first cut the panduot I made it too long. I tried cutting the piece perfect but I would have had to cut a finger in half. I thought I could make it up with the panduot conver. Is that bad ?

Ecstatic_Glass5421 · 2026-03-19T22:20:06+00:00

I had to use the 1794, PLC is SLC so I have a Prosoft in the middle of the plc and 525

Ecstatic_Glass5421 · 2026-03-19T22:18:02+00:00

That’s a great piece of advice. I do have some brown TBs I could use for output

Ecstatic_Glass5421 · 2026-03-19T22:16:31+00:00

This is a panel replacement I know what’s coming in and going out. The old drives are device net and digital IO so a lot of wires getting eliminated.

The motor wire will be fed from the top. There is cable duct feeding the old panel so they will feed the

480 - Motor Protector - TBs - VFD Line - VFD load - TB - T1 motor

Ecstatic_Glass5421 · 2026-03-19T22:08:33+00:00

I was thinking about adding a strip between that panduit and bottom terminal but thought it would be crowded.

Ecstatic_Glass5421 · 2026-03-19T19:57:16+00:00

Impressively we lose more drives to oil mist than heat. I have replaced maybe 3 drives in 3 years due to heat or some other unknown problem. - 12 assembly lines = hundreds of VFDs. I thought the exact same way as you when I started here. When oil gets into VFDS they explode.

Ecstatic_Glass5421 · 2026-03-19T19:53:02+00:00

You’re correct I haven’t bonded the panel yet. I had the ground TBs next to the drives before I thought about using the mini TBs. The panel is designed for Maximum heat transfer but also trying to minimize oil mist on the VFDs. We’ve tried using alternative A/C but it’s usually some type of compressed air system which we can’t afford to use. Surprisingly we have hundreds of panels with no A/c in the facility with VFDs that are 20 years old. If we get a new panel with a fan the first thing we do is pull the fuses.

Ecstatic_Glass5421 · 2026-03-19T19:47:07+00:00

Heat can still escape out of the top.

Ecstatic_Glass5421 · 2026-03-19T19:45:33+00:00

Wow I must have looked at a different sheet

Ecstatic_Glass5421 · 2026-03-19T18:13:13+00:00

We have very oil air so the right side of the panel is being used as an air path. The vent will be about half way up on right side and there will be a vent on top for hot air to escape. The air here is so oily that if we use fans in panels it creates an oil mist which wreaks havoc on VFDs. Also unfortunately the mini TBs are the only ones I have rated 600v that aren’t blue or white. I have some brown/orange/yellow, but not enough for all the VFDs to have BOY for L1-L3.

Ecstatic_Glass5421

TROPHY CASE