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Showing results 1 to 25 of 172
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Search: Posts Made By: JRoss
Forum: LIVE PLC Questions And Answers May 15th, 2019, 01:05 PM
Replies: 3
Ben
Views: 400
Posted By JRoss
What do you mean log back in?

What do you mean log back in?
Forum: LIVE PLC Questions And Answers May 15th, 2019, 01:03 PM
Replies: 2
Views: 285
Posted By JRoss
Link menu, Extract. But... if the original...

Link menu, Extract.

But... if the original program didn't check the Support Upload option, you're out of luck.
Forum: LIVE PLC Questions And Answers May 15th, 2019, 10:19 AM
Replies: 19
Views: 1,308
Posted By JRoss
I don't have the specs on the valves they used on...

I don't have the specs on the valves they used on the first machine, much less the new version. I was told the hydraulic circuit included some kind of balancing to keep drift from happening. The...
Forum: LIVE PLC Questions And Answers May 14th, 2019, 10:17 PM
Replies: 19
Views: 1,308
Posted By JRoss
I'm not sure I was clear. I did the programming...

I'm not sure I was clear. I did the programming on the original machine, and it is working well. The valves accept +/- 10V from a PLC analog output. We're tracking position/speed of the axes with...
Forum: LIVE PLC Questions And Answers May 14th, 2019, 08:10 AM
Replies: 19
Views: 1,308
Posted By JRoss
I don't know the exact valve they are using. ...

I don't know the exact valve they are using.
This is a redesign of a previous machine. In that one, we're using it for simple position control. There's a linear encoder giving feedback to the PLC....
Forum: LIVE PLC Questions And Answers May 13th, 2019, 06:46 PM
Replies: 19
Views: 1,308
Posted By JRoss
Thanks for the feedback! I'm wondering if you...

Thanks for the feedback! I'm wondering if you could give more specific reasons why not? Honestly my reaction when they ask me was the same but I don't have the experience with hydraulic equipment to...
Forum: LIVE PLC Questions And Answers May 13th, 2019, 02:27 PM
Replies: 19
Views: 1,308
Posted By JRoss
As in my algorithm would continue to provide a...

As in my algorithm would continue to provide a signal, or that the valve would require one to stay fully closed?
Forum: LIVE PLC Questions And Answers May 13th, 2019, 01:51 PM
Replies: 19
Views: 1,308
Posted By JRoss
Hydraulic Proportional Valve with no amp?

Has anyone on hear ever heard of controlling a proportional hydraulic valve directly from a PLC with a PWM output and SSR, instead of using an analog output to an amplifier? I have an OEM customer...
Forum: LIVE PLC Questions And Answers May 1st, 2019, 09:28 PM
Replies: 8
Views: 822
Posted By JRoss
When you say "somewhat old", what do you mean? I...

When you say "somewhat old", what do you mean? I did some Google searches before posting and haven't found anything on the forums or anywhere else. And as I said, the product life cycle status hasn't...
Forum: LIVE PLC Questions And Answers May 1st, 2019, 08:33 PM
Replies: 18
Views: 1,438
Posted By JRoss
I use OTL/OTU (or the equivalent depending on PLC...

I use OTL/OTU (or the equivalent depending on PLC brand) as little as possible. Here are a couple of problems that they can create if used indiscriminately:

Troubleshooting headache - If a bit is...
Forum: LIVE PLC Questions And Answers May 1st, 2019, 07:51 PM
Replies: 8
Views: 822
Posted By JRoss
Micrologix Obsolesence?

So a couple weeks ago a customer called me in to diagnose a PLC problem on a Micrologix 1100, and we ended up having to replace it. To my great surprise, when my customer called the distributor to...
Forum: LIVE PLC Questions And Answers January 29th, 2019, 09:35 PM
Replies: 11
Views: 1,218
Posted By JRoss
Mark - Thanks, I didn't even think to check your...

Mark - Thanks, I didn't even think to check your website, though it's the first place I go for programming cables!

jraef - Thanks for the heads up. Do you have a recommended brand of isolation...
Forum: LIVE PLC Questions And Answers January 29th, 2019, 12:51 PM
Replies: 11
Views: 1,218
Posted By JRoss
OK, I've got this wrapped up. Took a while...

OK, I've got this wrapped up. Took a while because some of the parts I needed were on backorder, and then I had to wedge it into my schedule.

I replaced all the burnt parts and installed a serial...
Forum: LIVE PLC Questions And Answers December 3rd, 2018, 11:27 AM
Replies: 11
Views: 1,218
Posted By JRoss
Aha, that makes perfect sense! That explains why...

Aha, that makes perfect sense! That explains why it died within minutes of plugging in the serial connection both times.

I am using the built in 0-10V analog output to control drive speed. Never...
Forum: LIVE PLC Questions And Answers December 2nd, 2018, 02:50 PM
Replies: 11
Views: 1,218
Posted By JRoss
Mitsubishi PLC died. Twice.

Hey everybody,
I have a strange problem that had me baffled. I built a small control panel with a Mitsubishi FX5U PLC, a panel PC, a simple KB Electronics DC drive, and a Rice Lake scale indicator....
Forum: LIVE PLC Questions And Answers September 17th, 2018, 07:21 PM
Replies: 4
Views: 859
Posted By JRoss
I also don't see how this can be done the way...

I also don't see how this can be done the way your manager wants. How variable are the flow rates?

I would probably try to come up with some sort of PLC logic based algorithm to calculate the base...
Forum: LIVE PLC Questions And Answers September 12th, 2018, 10:03 PM
Replies: 5
Views: 869
Posted By JRoss
Thank you! I really appreciate the feedback. I...

Thank you! I really appreciate the feedback. I think I'll stick with the PD flow meter.
Forum: LIVE PLC Questions And Answers September 11th, 2018, 09:39 PM
Replies: 5
Views: 869
Posted By JRoss
Keyence FD-Q Clamp-On Flow Meter ???

Has anyone used this device? Thoughts, concerns? I'm looking at an application for volumetric filling using this instead of an oval gear sensor.
Forum: LIVE PLC Questions And Answers August 22nd, 2018, 05:41 AM
Replies: 6
Views: 611
Posted By JRoss
In a word: familiarity. I have all the software...

In a word: familiarity. I have all the software and know all the players. I've been working with Mitsubishi hardware for 14 years.

I'm also considering control techniques for similar reasons.
...
Forum: LIVE PLC Questions And Answers August 21st, 2018, 09:54 PM
Replies: 6
Views: 611
Posted By JRoss
Mitsubishi A800 VFD for Standalone Motion

Has anyone used the Mitsubishi A800 VFD with encoder card as a standalone motion axis? I'm looking at upgrading some Danfoss drives*with SyncPos motion cards for a customer. I can go full bore and...
Forum: LIVE PLC Questions And Answers July 23rd, 2018, 01:45 PM
Replies: 4
Views: 476
Posted By JRoss
If you can't find T200 anywhere else, then I'd...

If you can't find T200 anywhere else, then I'd say this is a case of a code scrap left behind after a program change. What model of PLC is it?
Forum: LIVE PLC Questions And Answers June 4th, 2018, 11:02 AM
Replies: 12
Views: 1,381
Posted By JRoss
Time to upgrade...

Time to upgrade...
Forum: LIVE PLC Questions And Answers April 9th, 2018, 09:48 AM
Replies: 9
Views: 1,398
Posted By JRoss
That's exactly why I'm looking at the application...

That's exactly why I'm looking at the application hard right now while there's still time! I need to ask them how critical the pressure value is. It may be that they don't need to hold to a specific...
Forum: LIVE PLC Questions And Answers April 7th, 2018, 12:15 PM
Replies: 9
Views: 1,398
Posted By JRoss
Thanks everybody, especially Peter. I don't think...

Thanks everybody, especially Peter. I don't think a trip to Washington state is in the cards, but we'll see. I'll sink my teeth into the self paced training and see how it goes. I have enough time to...
Forum: LIVE PLC Questions And Answers April 6th, 2018, 10:22 PM
Replies: 9
Views: 1,398
Posted By JRoss
Is Delta Motion Online Training Worth My Time?

I have a customer that is developing a machine using a Delta RMC200 motion controller, and have contracted me to do the programming. I've never used a Delta Motion product, though I've done fairly...
Showing results 1 to 25 of 172

 
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