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Search: Posts Made By: milldrone
Forum: LIVE PLC Questions And Answers Yesterday, 07:19 AM
Replies: 4
Views: 203
Posted By milldrone
Presuming it's a 753-755 series willxfmr...

Presuming it's a 753-755 series willxfmr indicated you can program around it. Any chance the client has a floating delta or high resistance ground? If he does when you have a ground fault they will...
Forum: LIVE PLC Questions And Answers June 11th, 2021, 07:30 AM
Replies: 4
Views: 614
Posted By milldrone
Is the purpose to make more rungs visible for...

Is the purpose to make more rungs visible for troubleshooting on one screenshot?

Years ago I setup maintenance subroutines that were not scanned in LM90 as an aid for troubleshooting. Scantime...
Forum: LIVE PLC Questions And Answers April 21st, 2021, 12:00 AM
Replies: 30
Views: 4,410
Posted By milldrone
Are you measuring at the infeed to the VFD or at...

Are you measuring at the infeed to the VFD or at the motor leads?



Was the original motor a 3560 rpm unit?



Not a good sign, I have had motors that smelled ok but would not run. But...
Forum: LIVE PLC Questions And Answers April 8th, 2021, 03:12 PM
Replies: 3
Views: 778
Posted By milldrone
What are you guys using instead of Kroy shrinktube labels?

Now that Kroy has closed it's factory, What are you using for shrink tube labels?
Looking for the same durability as the Kroy labels had (ie. no smudging). Please state the features you like and...
Forum: LIVE PLC Questions And Answers March 11th, 2021, 07:12 AM
Replies: 6
Views: 946
Posted By milldrone
Read the PDF from megger a "stitch in time" ...

Read the PDF from megger a "stitch in time"
https://www.testequipmentdepot.com/megger/pdf/electrical-insulation-testing_guide.pdf
Forum: LIVE PLC Questions And Answers January 29th, 2021, 10:29 PM
Replies: 10
Views: 1,728
Posted By milldrone
I have never seen a motor manufacturer advise...

I have never seen a motor manufacturer advise anything higher than 100% when running on a VFD.




At the moment of the over voltage fault is the motor supposed to be stopping? And is this when...
Forum: LIVE PLC Questions And Answers November 11th, 2020, 07:59 PM
Replies: 9
Views: 1,879
Posted By milldrone
https://www.amazon.com/EMX-MVP-Voltage-Universal-D...

https://www.amazon.com/EMX-MVP-Voltage-Universal-Detector/dp/B00283Q9YI

Make the conduit run with PVC. Instead of sawcutting, and stuffing the wire in the sawcut use PVC and a quarzite box that...
Forum: LIVE PLC Questions And Answers October 3rd, 2020, 10:09 PM
Replies: 17
Views: 2,564
Posted By milldrone
On a typical sight glass there are two...

On a typical sight glass there are two connections to the tank. Once the bottom fluid covers the bottom connection there is no way for the light weight fluid to get into or get out of the sight...
Forum: LIVE PLC Questions And Answers October 3rd, 2020, 09:41 AM
Replies: 17
Views: 2,564
Posted By milldrone
Wouldn't a typical sight glass keep the "tank"...

Wouldn't a typical sight glass keep the "tank" separate from the sight glass when talking about two different specific gravity fluids? I would expect the pressure on the fluid columns to be the same,...
Forum: LIVE PLC Questions And Answers June 28th, 2020, 07:22 PM
Replies: 12
Views: 2,492
Posted By milldrone
As far as commonality my experience has been on...

As far as commonality my experience has been on systems built before the 80's. See Kev77's response below. The first ground fault is not a problem (before modern electronics). In theory this allowed...
Forum: LIVE PLC Questions And Answers June 7th, 2020, 12:06 PM
Replies: 8
Views: 1,366
Posted By milldrone
This might be the most important thing you take...

This might be the most important thing you take away from this event. Listen to what they tell you but don't believe it as fact until you investigate it for yourself. Presuming you mean the VFD runs...
Forum: LIVE PLC Questions And Answers May 30th, 2020, 07:36 PM
Replies: 19
Views: 3,702
Posted By milldrone
Curious: do all of the analog signals go up and...

Curious: do all of the analog signals go up and down in unison?





You have not mentioned what type of 480? power is supplied to the Vfd's. I hope it's not a floating delta. If you have a...
Forum: LIVE PLC Questions And Answers May 16th, 2020, 11:12 AM
Replies: 23
Views: 3,777
Posted By milldrone
One detail that some of the respondents to this...

One detail that some of the respondents to this thread may not know, but you listed in another thread is


In my opinion the pulse counting from the flowmeter is the only possible method from your...
Forum: LIVE PLC Questions And Answers March 14th, 2020, 10:01 AM
Replies: 16
Views: 2,661
Posted By milldrone
My experience does not include the powerflex 70...

My experience does not include the powerflex 70 series, but I have some experience with other makes. I have noticed however that different series seem to have their own distinct failure modes. The...
Forum: LIVE PLC Questions And Answers March 1st, 2020, 02:21 PM
Replies: 1
Views: 813
Posted By milldrone
Not sure what your situation is but my job is at...

Not sure what your situation is but my job is at a 24/7/365 facility. Down time is a very real problem. Anything that can be done to minimize downtime is welcomed. When 70E became a necessity,...
Forum: LIVE PLC Questions And Answers February 14th, 2020, 07:09 AM
Replies: 22
Views: 4,459
Posted By milldrone
I read kolyur's solution and it worked for me

I read kolyur's solution and it worked for me
Forum: LIVE PLC Questions And Answers February 8th, 2020, 09:15 AM
Replies: 21
Views: 2,699
Posted By milldrone
A slight variant to Steve's suggestion: Use an...

A slight variant to Steve's suggestion: Use an encoder with a knob attached instead of a pot. At the moment of "authorization", "sync" the encoder counts with the drive's digital speed reference. If...
Forum: LIVE PLC Questions And Answers January 12th, 2020, 01:03 PM
Replies: 10
Views: 2,174
Posted By milldrone
In it's present implementation does the operator...

In it's present implementation does the operator "hit the mark" with a single push button push, or is jogging needed?
Forum: LIVE PLC Questions And Answers January 11th, 2020, 09:28 AM
Replies: 15
Views: 2,162
Posted By milldrone
Plus 1 to Parky's suggestion

Plus 1 to Parky's suggestion
Forum: LIVE PLC Questions And Answers December 7th, 2019, 10:36 AM
Replies: 23
Views: 3,867
Posted By milldrone
Since we are all guessing due to the lack of...

Since we are all guessing due to the lack of information from the original poster , let me add another guess. Are the design parameters set up for ducting attached, and you are testing with no...
Forum: LIVE PLC Questions And Answers November 17th, 2019, 08:12 AM
Replies: 22
Views: 3,850
Posted By milldrone
+1

+1
Forum: LIVE PLC Questions And Answers July 13th, 2019, 08:17 PM
Replies: 15
Views: 3,821
Posted By milldrone
I'm not trying to be picky, just correct, because...

I'm not trying to be picky, just correct, because I'm suspecting Ingersol Rand of a possible marketing trick, hype or miss direction.

Is it possible that you mean voltage? or do you mean amps...
Forum: LIVE PLC Questions And Answers July 13th, 2019, 03:59 PM
Replies: 15
Views: 3,821
Posted By milldrone
ife's post reminded myself of another strange...

ife's post reminded myself of another strange troubleshoot I was part of:

The original motor had bearing problems , the rotor dragged across the stator and "welded/smeared the laminations creating...
Forum: LIVE PLC Questions And Answers July 13th, 2019, 02:34 PM
Replies: 15
Views: 3,821
Posted By milldrone
Along with jraefs questions I have a few more. ...

Along with jraefs questions I have a few more.

1. Starts per hour.
2. You list the power as HP and your location suggests you might have 50hz 400 V power available, and might be using star delta...
Forum: LIVE PLC Questions And Answers June 7th, 2019, 10:50 PM
Replies: 8
Views: 1,590
Posted By milldrone
Banner's t30 and s30 lines of dc photos both have...

Banner's t30 and s30 lines of dc photos both have an alarm output if the excess gain is 1 to 1.5. They may also have it available on other styles. To get the alarm function you have to hook up the DC...
Showing results 1 to 25 of 500

 
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