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Search: Posts Made By: Gene Bond
Forum: LIVE PLC Questions And Answers May 10th, 2020, 09:45 AM
Replies: 25
Views: 1,158
Posted By Gene Bond
Normally, a distribution transformer *could* be...

Normally, a distribution transformer *could* be Delta-Delta, depending on the rating. With a 208Y120 secondary, it's typically a Delta-Wye.

As far as I know, a Drive Isolation Transformer is...
Forum: LIVE PLC Questions And Answers May 7th, 2020, 03:35 PM
Replies: 25
Views: 1,158
Posted By Gene Bond
+1 jraef Some drives will trip on OV on...

+1 jraef

Some drives will trip on OV on delta power if the filters are left in, simply due to the caps in the filters charging up too high and bleeding into the bus round-about through the line......
Forum: LIVE PLC Questions And Answers May 6th, 2020, 08:28 AM
Replies: 6
Views: 487
Posted By Gene Bond
For a great reference of timer functions, check...

For a great reference of timer functions, check out the Appendix on this catalog:
http://stevenengineering.com/tech_support/PDFs/40MAIN.pdf

SSAC was once the the greatest manufacturer of timers,...
Forum: LIVE PLC Questions And Answers April 27th, 2020, 10:37 PM
Replies: 5
Views: 475
Posted By Gene Bond
My best guess would be TTL logic draws more...

My best guess would be TTL logic draws more current, therefore would be more noise immune.

And, yes, HTL or TTL can have compliments. TTL is 5v line drivers, and HTL is totem pole transistors....
Forum: LIVE PLC Questions And Answers April 23rd, 2020, 07:22 AM
Replies: 4
Views: 303
Posted By Gene Bond
https://acim.nidec.com/en-us/drives/control-techni...

https://acim.nidec.com/en-us/drives/control-techniques/service-and-support/training/online-training-options
Forum: LIVE PLC Questions And Answers April 9th, 2020, 05:30 PM
Replies: 9
Views: 673
Posted By Gene Bond
Yes, at a minimum, you need a 'Servo Amplifier'...

Yes, at a minimum, you need a 'Servo Amplifier' or drive.

There are a few motion controllers out there that have small drives included, such as the hobby-grade CNC machines.

There are also...
Forum: LIVE PLC Questions And Answers April 9th, 2020, 07:31 AM
Replies: 18
Views: 1,596
Posted By Gene Bond
Except the almighty Dollar, of course :thumb: ...

Except the almighty Dollar, of course :thumb:

But, I agree, NEMA is an outdated standard, and UL has continued to expand its standards to include some of the other agencies specs in order to...
Forum: LIVE PLC Questions And Answers April 8th, 2020, 09:30 PM
Replies: 20
Views: 987
Posted By Gene Bond
If you are planning to full-voltage start a DC...

If you are planning to full-voltage start a DC motor, you better plan on a current surge of 10x for a few mS... If you can get the specs, or the winding resistance, it's easily sized, but most don't...
Forum: LIVE PLC Questions And Answers April 8th, 2020, 07:53 AM
Replies: 31
Views: 1,722
Posted By Gene Bond
The AD Productivity is more RS Logix'ish, the...

The AD Productivity is more RS Logix'ish, the Click is more Direct Logic'ish.

I use them both and like them both. I don't feel you'll go wrong either way.
Forum: LIVE PLC Questions And Answers March 11th, 2020, 10:31 PM
Replies: 2
Views: 423
Posted By Gene Bond
I would use #4, the combined sourcing/sinking...

I would use #4, the combined sourcing/sinking (totem pole), as it should not need a load resistor to see a clean output.
Forum: LIVE PLC Questions And Answers March 11th, 2020, 06:42 PM
Replies: 13
Views: 1,154
Posted By Gene Bond
And never size the drive just by HP & V, always...

And never size the drive just by HP & V, always double-check the FLA. One area you will get burned regularly is submersible pumps. For some reason, most of them have much higher FLA than the NEMA...
Forum: LIVE PLC Questions And Answers March 6th, 2020, 08:26 AM
Replies: 32
Views: 1,375
Posted By Gene Bond
OK. I can understand that logic... BUT, then...

OK. I can understand that logic...

BUT, then why do some series come with terminals and some don't? (Click vs Productivity for example)

Not trying to be mean or anything, but I would love if...
Forum: LIVE PLC Questions And Answers March 6th, 2020, 07:11 AM
Replies: 32
Views: 1,375
Posted By Gene Bond
C-More has become my standard Go-To. I have quite...

C-More has become my standard Go-To. I have quite a few out there. Working on a few now.

BUT, we now have an issue. One of our guys put a serious scratch on the face of one with a tool-slip. This...
Forum: LIVE PLC Questions And Answers February 20th, 2020, 10:27 AM
Replies: 15
Views: 1,479
Posted By Gene Bond
IMO, if a vfd does not have bus or DBR terminals,...

IMO, if a vfd does not have bus or DBR terminals, it is NOT a general purpose drive, it might be an HVAC drive, but not suitable for heavy duty use. There are too many applications in the general...
Forum: LIVE PLC Questions And Answers February 17th, 2020, 10:04 AM
Replies: 15
Views: 1,479
Posted By Gene Bond
You should still be able to check the diodes...

You should still be able to check the diodes between the L1,2,3 terminals and the terminals on the bus capacitors... If there's a choke, the resistance is low enough when in diode check mode to...
Forum: LIVE PLC Questions And Answers February 13th, 2020, 07:33 PM
Replies: 22
Views: 1,478
Posted By Gene Bond
We still use a lot of them on Crushers, Shredders...

We still use a lot of them on Crushers, Shredders and Grinders of >100HP.

As far as the big, long conveyors, there are still some out there on soft starters, but VFD's do most of it now, where one...
Forum: LIVE PLC Questions And Answers February 13th, 2020, 07:27 AM
Replies: 22
Views: 1,478
Posted By Gene Bond
Soft Start means just that! You normally set...

Soft Start means just that!

You normally set the initial current/torque/voltage (depending on mode or model), then the max current/torque/voltage, and it ramps it up.

IF the starter is sized...
Forum: LIVE PLC Questions And Answers February 12th, 2020, 06:40 PM
Replies: 22
Views: 1,478
Posted By Gene Bond
Yes, I didn't know there were still some of the...

Yes, I didn't know there were still some of the offered, or I would have mentioned it. Back a couple decades ago, they were cheaper than VFD's. Not so much anymore I imagine.




This would...
Forum: LIVE PLC Questions And Answers February 11th, 2020, 10:29 PM
Replies: 22
Views: 1,478
Posted By Gene Bond
There are a few out there that can Jog reverse....

There are a few out there that can Jog reverse. They pulse the 1/2 waves in the reverse sequence :)

Emotron is one that comes to mind: https://www.emotron.com/products/softstarters/
Forum: LIVE PLC Questions And Answers February 8th, 2020, 09:43 PM
Replies: 15
Views: 1,507
Posted By Gene Bond
+1, again assuming the outputs are not processed...

+1, again assuming the outputs are not processed until after the I/O scan and logic is solved...
Forum: LIVE PLC Questions And Answers February 1st, 2020, 09:40 AM
Replies: 15
Views: 1,174
Posted By Gene Bond
Along the same lines (Ladder), here's a Doc I...

Along the same lines (Ladder), here's a Doc I picked up on this group a while back which shows multiple ways to 'skin that cat' (in Ladder).

It may show some different thought processes to convert...
Forum: LIVE PLC Questions And Answers February 1st, 2020, 09:30 AM
Replies: 3
Views: 525
Posted By Gene Bond
Old School & Cheaper. The Servo Motor likely has...

Old School & Cheaper. The Servo Motor likely has a 24vdc brake. A small transformer and bridge should be cheaper than a full power supply. BUT, in today's market, with 1000's of cheap little power...
Forum: LIVE PLC Questions And Answers February 1st, 2020, 09:24 AM
Replies: 19
Views: 1,963
Posted By Gene Bond
Typically, I've used 1 volt drop per (controlled)...

Typically, I've used 1 volt drop per (controlled) phase, so 1 watt per phase per amp... This is on much larger loads, like solid state starters w/o bypass contactors.
Forum: LIVE PLC Questions And Answers February 1st, 2020, 09:10 AM
Replies: 15
Views: 1,155
Posted By Gene Bond
Overload Relays and Motor Circuit Protectors...

Overload Relays and Motor Circuit Protectors accelerate the trip time based on current imbalance.

Why is the transformer on the secondary of the starter?

If it's to save an auxiliary contact...
Forum: LIVE PLC Questions And Answers January 24th, 2020, 08:17 AM
Replies: 5
Views: 673
Posted By Gene Bond
While I realize the time difference is...

While I realize the time difference is significant, have you tried the factory tech support guys? They are very good and responsive... 1, 317-916-4274, https://hornerautomation.com/contact-us/
Showing results 1 to 25 of 423

 
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