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Search: Posts Made By: jraef
Forum: LIVE PLC Questions And Answers Yesterday, 09:43 AM
Replies: 3
Views: 148
Posted By jraef
It’s generally accepted in full triplex pumping...

It’s generally accepted in full triplex pumping systems that in the long run, pump wear and tear evens out without needing to get overly aggressive about trying to force it to happen. A simple way of...
Forum: LIVE PLC Questions And Answers August 10th, 2018, 01:55 PM
Replies: 12
Views: 358
Posted By jraef
Decide WHY you want to do this at all. If the...

Decide WHY you want to do this at all. If the goal is to simply change the speed, then get rid of the variator, it's costing you efficiency. But the difference has to do with TORQUE. A variator...
Forum: LIVE PLC Questions And Answers August 10th, 2018, 04:08 AM
Replies: 6
Views: 251
Posted By jraef
Wiring standards for industrial machinery are...

Wiring standards for industrial machinery are covered in a standard called NFPA 79. NFPA is the National Fire Protection Agency, they also publish our National Electric Code (NEC) which is NFPA 70....
Forum: LIVE PLC Questions And Answers August 8th, 2018, 08:53 PM
Replies: 10
Views: 279
Posted By jraef
Are you using a Logix PLC? If so, you lose the...

Are you using a Logix PLC? If so, you lose the benefit of ADC by daisy chaining.
Forum: LIVE PLC Questions And Answers August 7th, 2018, 01:35 PM
Replies: 6
Views: 355
Posted By jraef
Panduit has a new version or the Graceport...

Panduit has a new version or the Graceport concept as well. What I like about theirs is that it's a fiber-optic connection to the panel mounted device, so no line power going to the door across the...
Forum: LIVE PLC Questions And Answers August 3rd, 2018, 12:55 PM
Replies: 4
Views: 260
Posted By jraef
Search for “conformal coating”.

Search for “conformal coating”.
Forum: LIVE PLC Questions And Answers August 1st, 2018, 10:25 PM
Replies: 2
Views: 99
Posted By jraef
It's true that Saftronics never made their...

It's true that Saftronics never made their drives, they were brand-labeling Yaskawa for years, then when Yaskawa bought out most of their other partners like Magnetek and EMS, Saftronics switched to...
Forum: LIVE PLC Questions And Answers July 29th, 2018, 11:45 AM
Replies: 21
Views: 640
Posted By jraef
In the next iteration, they are going to change...

In the next iteration, they are going to change to big block capital letters and change the spelling of GE to “ABB”...
Forum: LIVE PLC Questions And Answers July 28th, 2018, 10:06 AM
Replies: 21
Views: 640
Posted By jraef
You have a standard motor that is intended to run...

You have a standard motor that is intended to run at full speed, attached to a variable magnetic clutch that allows you to let the speed slip by varying the strength of the magnetic field of the...
Forum: LIVE PLC Questions And Answers July 26th, 2018, 10:52 AM
Replies: 9
Views: 534
Posted By jraef
I agree, UL doesn't care what your shop looks...

I agree, UL doesn't care what your shop looks like or how it's laid out. That's up to you. They are not about efficiency, just procedures and documentation.


That said, if you exhibit sloppiness...
Forum: LIVE PLC Questions And Answers July 21st, 2018, 10:06 AM
Replies: 5
Views: 202
Posted By jraef
Huh. The last time I touched one of those was...

Huh. The last time I touched one of those was 1988. Who knew that POS would last 30 years! Wish I could help, but I must have killed those brain cells. It does sound right that you had to Stop the...
Forum: LIVE PLC Questions And Answers July 17th, 2018, 06:24 PM
Replies: 4
Views: 220
Posted By jraef
In Rockwell speak, you are always coming from the...

In Rockwell speak, you are always coming from the standpoint of the SOFTWARE you are looking at. So "Upload" means to Upload something INTO the software, Download means you are moving it FROM the...
Forum: LIVE PLC Questions And Answers July 17th, 2018, 05:06 PM
Replies: 4
Views: 220
Posted By jraef
RSLogix 5000 is not the VFD programming software....

RSLogix 5000 is not the VFD programming software. Studio 5000 now includes it, but if you are still calling is RSLogix, it's too old to have it integrated.


You can download Connected Components...
Forum: LIVE PLC Questions And Answers July 17th, 2018, 09:35 AM
Replies: 2
Views: 211
Posted By jraef
No. Not possible. For an AC induction motor to...

No. Not possible.
For an AC induction motor to become a generator, you need a minimum of these two things:
1) the motor must remain energized so that the magnetic fields are maintained. There may...
Forum: LIVE PLC Questions And Answers July 12th, 2018, 12:33 PM
Replies: 1
Views: 175
Posted By jraef
The filters are mostly for compliance with the...

The filters are mostly for compliance with the tighter EU standards for EMI/RFI emissions (as opposed to the less stringent FCC regulations we have to adhere to in the US). If you are an OEM building...
Forum: LIVE PLC Questions And Answers July 12th, 2018, 09:48 AM
Replies: 6
Views: 391
Posted By jraef
The Rectifier damage might be related to your...

The Rectifier damage might be related to your power system. Most drives, especially those designed outside of North America, REQUIRE that the line power be from a solidly grounded Wye system. But...
Forum: LIVE PLC Questions And Answers July 11th, 2018, 03:29 PM
Replies: 6
Views: 391
Posted By jraef
Before you waste any more time on them, determine...

Before you waste any more time on them, determine how long they have been off line (un-powered). If more than a year sing being energized, the capacitors need to be reformed PRIOR to having ANY...
Forum: LIVE PLC Questions And Answers July 11th, 2018, 11:46 AM
Replies: 9
Views: 571
Posted By jraef
I don’t know where you heard this, but that...

I don’t know where you heard this, but that premise is grossly incorrect from the get-go. When you make contact with a live conductor in an ungrounded system, you become part of a capacitor between...
Forum: LIVE PLC Questions And Answers July 10th, 2018, 09:47 PM
Replies: 11
Views: 625
Posted By jraef
I know EXACTLY what your issue is... DC...

I know EXACTLY what your issue is...

DC Braking is totally DIFFERENT from Dynamic Braking, and it is only Dynamic Braking that uses the braking resistor! DC (Injection) Braking or DCIB means the...
Forum: LIVE PLC Questions And Answers July 5th, 2018, 12:34 PM
Replies: 2
Views: 213
Posted By jraef
Read the Knowledgebase article #29926. You likely...

Read the Knowledgebase article #29926. You likely have the wrong version. But you may want to just change over to CCW For programming, Drive Executive is not going to be kept up to date with any...
Forum: LIVE PLC Questions And Answers July 4th, 2018, 11:04 AM
Replies: 7
Views: 519
Posted By jraef
Almost all control component mfrs make one, it’s...

Almost all control component mfrs make one, it’s just that many of them don’t sell the actual pot itself, they just sell you the actuator that goes on the door and you get any pot you need with the...
Forum: LIVE PLC Questions And Answers July 4th, 2018, 11:01 AM
Replies: 24
Views: 1,480
Posted By jraef
Just a slight correction on that (and I...

Just a slight correction on that (and I understand that you haven’t used one yet). There are no “parameters” in a 527, it is fully programmed as a motion axis using motion profiles and commands, so...
Forum: LIVE PLC Questions And Answers July 3rd, 2018, 12:03 AM
Replies: 8
Views: 448
Posted By jraef
You know that you have to put your images in an...

You know that you have to put your images in an image hosting site, right? You can’t post images from your computer.

If you did use a hosting site, it must not be allowing remote calls. Some...
Forum: LIVE PLC Questions And Answers July 2nd, 2018, 10:17 AM
Replies: 98
Views: 8,373
Posted By jraef
The Tesla factory is a repurposed GM/Toyota Joint...

The Tesla factory is a repurposed GM/Toyota Joint Venture factory (called NUMI, New United Motors Inc) that was closed down for a couple of years before Tesla bought it. But GM and Toyota has...
Forum: LIVE PLC Questions And Answers July 2nd, 2018, 09:57 AM
Replies: 1
Views: 310
Posted By jraef
In my experience this is usually the result of a...

In my experience this is usually the result of a failed component inside the drive, like an A/D converter in the current sensing circuit that has failed and puts out a digital value of 65,536A, which...
Showing results 1 to 25 of 500

 
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