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Search: Posts Made By: Gene Bond
Forum: LIVE PLC Questions And Answers October 19th, 2020, 03:43 PM
Replies: 10
Views: 455
Posted By Gene Bond
If you want deadband between the contacts, you'll...

If you want deadband between the contacts, you'll likely need 2 switches, since most all switches are form C, not 2 independent contacts....
Forum: LIVE PLC Questions And Answers October 18th, 2020, 10:47 AM
Replies: 4
Views: 514
Posted By Gene Bond
And Automation Direct's Productivity Open: ...

And Automation Direct's Productivity Open:

https://www.automationdirect.com/adc/shopping/catalog/programmable_controllers/open_source_controllers_(arduino-compatible)
Forum: LIVE PLC Questions And Answers October 18th, 2020, 10:44 AM
Replies: 3
Views: 279
Posted By Gene Bond
SC2 _1st Scan :D

SC2 _1st Scan

:D
Forum: LIVE PLC Questions And Answers October 4th, 2020, 09:18 PM
Replies: 10
Views: 488
Posted By Gene Bond
This is the correct answer. When starting up...

This is the correct answer.

When starting up a drive, first you get the motor going the right direction for forward and/or reverse via motor phasing. Then the encoder phasing is setup to match it....
Forum: LIVE PLC Questions And Answers September 29th, 2020, 09:32 PM
Replies: 6
Views: 502
Posted By Gene Bond
+1 That's the one we use in the Limestone...

+1

That's the one we use in the Limestone mills. Last very well!
Forum: LIVE PLC Questions And Answers September 28th, 2020, 10:46 PM
Replies: 20
Views: 1,026
Posted By Gene Bond
I generally allow for a scaling function to be...

I generally allow for a scaling function to be done via the HMI, behind a password, since I regularly see deviations from one sensor to another. I don't have to worry about the pressure gage not...
Forum: LIVE PLC Questions And Answers September 25th, 2020, 10:55 AM
Replies: 10
Views: 931
Posted By Gene Bond
I got an image of Danny DeVito's line in one of...

I got an image of Danny DeVito's line in one of my favorite scene's from 'Ruthless People'. It probably should not be repeated here :utoh: (google)

BUT, I did use it one time when the payphone in...
Forum: LIVE PLC Questions And Answers September 24th, 2020, 04:08 PM
Replies: 10
Views: 581
Posted By Gene Bond
IMO, There's nothing worse than a terminal number...

IMO, There's nothing worse than a terminal number being different than a wire number.

If you happen into a machine where someone (but noone who will admit it) has 'worked' on it previously, and...
Forum: LIVE PLC Questions And Answers September 24th, 2020, 03:47 PM
Replies: 20
Views: 1,270
Posted By Gene Bond
That's great news that they are planning a...

That's great news that they are planning a simulator. I've not found a better way with just my processor & no I/O, than to copy and paste tasks from a customer's version and mine, and disabling the...
Forum: LIVE PLC Questions And Answers September 23rd, 2020, 07:54 AM
Replies: 20
Views: 1,270
Posted By Gene Bond
Productivity does not have a simulator (I wish it...

Productivity does not have a simulator (I wish it did), but DoMore does...
Forum: LIVE PLC Questions And Answers September 17th, 2020, 12:37 PM
Replies: 20
Views: 1,389
Posted By Gene Bond
Yes, that should be the case... So, if you...

Yes, that should be the case...

So, if you are going forward at 50% speed, and command torque to -100%, the load should decel to 0 and beyond to -100% speed, if you don't change any commands......
Forum: LIVE PLC Questions And Answers September 17th, 2020, 11:42 AM
Replies: 20
Views: 1,389
Posted By Gene Bond
When you command both speed and torque, they are...

When you command both speed and torque, they are basically both just limits.

Whichever limit is hit by the load is the controlling factor.

So, for example, if you command 50% speed and 50%...
Forum: LIVE PLC Questions And Answers September 17th, 2020, 11:35 AM
Replies: 24
Views: 1,088
Posted By Gene Bond
Looks to me like someone deleted 1/2 of an old...

Looks to me like someone deleted 1/2 of an old program and left some garbage in ot that doesn't do anything!
Forum: LIVE PLC Questions And Answers September 17th, 2020, 09:44 AM
Replies: 20
Views: 1,389
Posted By Gene Bond
The 100% torque required at lower speed to (try...

The 100% torque required at lower speed to (try to) maintain the ramp rate is confounding.

Do you see a similar torque profile when accelerating? If the load is 99% inertia, I would think the...
Forum: LIVE PLC Questions And Answers September 17th, 2020, 09:39 AM
Replies: 20
Views: 1,389
Posted By Gene Bond
Yes, Regen and DB are different animals, for...

Yes, Regen and DB are different animals, for sure. AC and DC are also different, since the AC drives require a conversion to the DC bus, then conversion back to AC. The DC drives simply pulse...
Forum: LIVE PLC Questions And Answers September 16th, 2020, 09:50 PM
Replies: 11
Views: 671
Posted By Gene Bond
Exactly!

Exactly!
Forum: LIVE PLC Questions And Answers September 16th, 2020, 09:46 PM
Replies: 20
Views: 1,389
Posted By Gene Bond
Gary, It's a DC Drive/Motor.

Gary, It's a DC Drive/Motor.
Forum: LIVE PLC Questions And Answers September 16th, 2020, 05:03 PM
Replies: 13
Views: 1,113
Posted By Gene Bond
I believe it is a coded / pulsed DC signal, so...

I believe it is a coded / pulsed DC signal, so the safety input recognize that the sensor is active and not bypassed... I've seen this as a problem from some safety laser scanners. There was a recent...
Forum: LIVE PLC Questions And Answers September 16th, 2020, 05:00 PM
Replies: 11
Views: 671
Posted By Gene Bond
I always allow for an analog calibration in the...

I always allow for an analog calibration in the HMI, and if the scaled value < 0, then it is = 0...
Forum: LIVE PLC Questions And Answers September 16th, 2020, 04:58 PM
Replies: 20
Views: 1,389
Posted By Gene Bond
It sounds to me like you have the drive set to...

It sounds to me like you have the drive set to limit the regen torque to 100%, and the load (for some reason) is requiring more:


To decel faster, you'll need more torque. If it's over 100% for a...
Forum: LIVE PLC Questions And Answers September 15th, 2020, 10:41 PM
Replies: 16
Views: 1,114
Posted By Gene Bond
Thanks guys.

Thanks guys.
Forum: LIVE PLC Questions And Answers September 15th, 2020, 06:25 PM
Replies: 12
Views: 778
Posted By Gene Bond
Is it possible the load is over-driving the...

Is it possible the load is over-driving the motor? It could be you need some braking torque, and without a DB resistor, there's nowhere for the energy to go.

The drive would go into bus...
Forum: LIVE PLC Questions And Answers September 15th, 2020, 06:22 PM
Replies: 16
Views: 1,114
Posted By Gene Bond
OT: Where to sell surplus CPU's and I/O, etc. (DL205 series)

I have some AD Direct Logic 205 series processors, racks and I/O cards, etc. that I used for development previously. It's (almost) useless to me now, since I've moved on to Horner and AD Productivity...
Forum: LIVE PLC Questions And Answers September 14th, 2020, 08:02 PM
Replies: 20
Views: 1,389
Posted By Gene Bond
I assume you have a regenerative drive. I believe...

I assume you have a regenerative drive. I believe that drive is available in either flavor.

The available torque should be the same in any quadrant, unlike dynamic braking, the SCR's can control...
Forum: LIVE PLC Questions And Answers September 8th, 2020, 07:20 AM
Replies: 17
Views: 1,862
Posted By Gene Bond
Torque (FtLb) = (HP x 5250) / RPM It would...

Torque (FtLb) = (HP x 5250) / RPM

It would take 6 250HP motors to make the torque of a 1500HP motor, regardless of the gear reduction.

Unless, however, the 1500HP motor was a base speed of...
Showing results 1 to 25 of 468

 
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