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Search: Posts Made By: GaryS
Forum: LIVE PLC Questions And Answers November 9th, 2018, 01:41 PM
Replies: 8
Views: 447
Posted By GaryS
What motor are you using in the video? My guess...

What motor are you using in the video? My guess is that it’s a shaded pole motor.

Shaded pole motor will work with a single phase variable frequency drives but they are very low power motors.
A...
Forum: LIVE PLC Questions And Answers November 8th, 2018, 10:37 PM
Replies: 18
Views: 878
Posted By GaryS
Thanks for the information it helps You said...

Thanks for the information it helps
You said in the first post it was a 30,000 gal tank now in the last post it only 3,000 gal that huge difference.
Is this a horizontal or vertical tank it does...
Forum: LIVE PLC Questions And Answers November 8th, 2018, 05:43 PM
Replies: 11
Views: 447
Posted By GaryS
Here is a solution that I think will work for you...

Here is a solution that I think will work for you
Metritape
the question would be can you get them the size you need

http://jowa-usa.com/industrialMetritape.cfm
Forum: LIVE PLC Questions And Answers November 8th, 2018, 01:13 PM
Replies: 12
Views: 541
Posted By GaryS
ATC input would be a high impedance input so it...

ATC input would be a high impedance input so it would have little loading effect.
you could use a resistor divider network but you would be better off just adding an analog input module. then you...
Forum: LIVE PLC Questions And Answers November 7th, 2018, 07:57 PM
Replies: 21
Views: 995
Posted By GaryS
It looks like you figured it out, the 30 amp is...

It looks like you figured it out, the 30 amp is well below the 50 FLA of the motor and you are drawing the vacuum you need for the machine
Forum: LIVE PLC Questions And Answers November 7th, 2018, 07:52 PM
Replies: 18
Views: 878
Posted By GaryS
You say you want to maintain 85 to 90 Deg. ...

You say you want to maintain 85 to 90 Deg.
What dead band can you live with ?
I would use either PWM On Off control or Phase angle control either one set as a proportional controller with PID...
Forum: LIVE PLC Questions And Answers November 7th, 2018, 07:37 PM
Replies: 12
Views: 541
Posted By GaryS
You don't need a bridge just a resistor divider...

You don't need a bridge just a resistor divider depending on the output load
we would need to know the output load to calculate the resistor values
or you could use an op-amp set up as attenuator...
Forum: LIVE PLC Questions And Answers November 7th, 2018, 04:24 PM
Replies: 5
Views: 194
Posted By GaryS
why not put the calculation in periodic task sub...

why not put the calculation in periodic task sub program
You will find that there are may thinks the normal scan time is to fast and you have to put them in a periodic task program PID is one of...
Forum: LIVE PLC Questions And Answers November 7th, 2018, 04:08 PM
Replies: 11
Views: 416
Posted By GaryS
I use the dongle it works good on any system ...

I use the dongle it works good on any system
Set up the VM Machine to access the USB ports
I put all my activations on the dongle move it wherever I need it.
Forum: LIVE PLC Questions And Answers November 7th, 2018, 03:55 PM
Replies: 3
Views: 187
Posted By GaryS
First question is the bottom of the silo flat or...

First question is the bottom of the silo flat or is there a cone ?
The formula for volume of a cylinder is
V=Pi R2 x Height
use that to calculate the volume from the flat bottom up
then if you...
Forum: LIVE PLC Questions And Answers November 7th, 2018, 01:54 PM
Replies: 5
Views: 234
Posted By GaryS
Have each condition set a different bit in the...

Have each condition set a different bit in the load word of a FIFO and load
then if that first word of the FIFO is not equal to 0 set the output if 0 clear the output
don't forget you have to...
Forum: LIVE PLC Questions And Answers November 7th, 2018, 01:40 PM
Replies: 7
Views: 205
Posted By GaryS
I use Blue with a Red trace That way I know...

I use Blue with a Red trace
That way I know that it is 24VDC (Blue) and part of the safety Circuit (Red Trace)
And still label the wires
Yellow is for Panel interconnect from panel to panel
Forum: LIVE PLC Questions And Answers November 7th, 2018, 11:56 AM
Replies: 4
Views: 262
Posted By GaryS
As far as longevity both would be about equal ...

As far as longevity both would be about equal
They mage have a different frame size To consider.
For your application I would recommend a TENV frame and monitor the temperature of the motor. When...
Forum: LIVE PLC Questions And Answers November 4th, 2018, 12:29 PM
Replies: 7
Views: 337
Posted By GaryS
I would stay with the Hardy they are among the...

I would stay with the Hardy they are among the best
I have been using then for years
Forum: LIVE PLC Questions And Answers November 2nd, 2018, 01:27 PM
Replies: 15
Views: 699
Posted By GaryS
Without the benefit of seeing the full system I...

Without the benefit of seeing the full system I would offer this.
Why not use a level transducer with a high and low float switch as an override.
With the transducer you can them just set the...
Forum: LIVE PLC Questions And Answers November 1st, 2018, 10:49 PM
Replies: 13
Views: 669
Posted By GaryS
For a standard load you would size the breaker or...

For a standard load you would size the breaker or fuse ate 125% up to the limits of the conductor in the case of a 2 amp load then the correct fuse would be 2.5 but that not everything you have to...
Forum: LIVE PLC Questions And Answers November 1st, 2018, 07:55 PM
Replies: 15
Views: 699
Posted By GaryS
in most cases I would agree there is little value...

in most cases I would agree there is little value I running a pump at slow speed but there is 1 value and that is to keep the motor moving and keeping it heated to prevent condensation from building...
Forum: LIVE PLC Questions And Answers October 31st, 2018, 11:23 AM
Replies: 21
Views: 565
Posted By GaryS
I see some of you are concerned about dumping the...

I see some of you are concerned about dumping the air on both sides of the cylinder
An option would be to revere the action of the solenoids energize to vent pressure o both sides with solenoids...
Forum: LIVE PLC Questions And Answers October 31st, 2018, 12:33 AM
Replies: 8
Views: 877
Posted By GaryS
Keep in mind the Set point and the PV must be the...

Keep in mind the Set point and the PV must be the same units in a PID control
PSI , Level or just raw numbers the PID control will do whatever it need to do too by changing the output to make the...
Forum: LIVE PLC Questions And Answers October 31st, 2018, 12:13 AM
Replies: 21
Views: 565
Posted By GaryS
With hydraulic it is easy to do just turn off...

With hydraulic it is easy to do just turn off both solenoids and the cylinder stops in place. The key is that oil dose not compress so the volume in both sided of the cylinder stays where it is when...
Forum: LIVE PLC Questions And Answers October 30th, 2018, 09:29 PM
Replies: 21
Views: 565
Posted By GaryS
it's hard to tell but it looks like you are...

it's hard to tell but it looks like you are trying to stop a pneumatic cylinder in mid stroke

if that's the case then you need to energize both for and rev solenoids putting full pressure on both...
Forum: LIVE PLC Questions And Answers October 29th, 2018, 01:43 AM
Replies: 30
Views: 1,270
Posted By GaryS
To address the Over Load setting issue. Lets...

To address the Over Load setting issue.
Lets not confuse the Motor Overload with Short Circuit protection both are important and must be evaluated separately, each has there own function.

6 A...
Forum: LIVE PLC Questions And Answers October 26th, 2018, 04:35 PM
Replies: 21
Views: 995
Posted By GaryS
a question how many motor leads are coming out in...

a question how many motor leads are coming out in the motor box 3 , 6 ,9, 12
or as some motors have a terminal block to make the motor connections
can you post a picture of it along with a...
Forum: LIVE PLC Questions And Answers October 26th, 2018, 03:47 PM
Replies: 19
Views: 1,009
Posted By GaryS
I use a jigsaw but I know of a large shop that...

I use a jigsaw but I know of a large shop that uses a CNC Plasma cutter it's really fast and clean.
Forum: LIVE PLC Questions And Answers October 26th, 2018, 11:11 AM
Replies: 21
Views: 995
Posted By GaryS
he did say what happened they connected 480 v tor...

he did say what happened they connected 480 v tor 240v VFD that would blow out the front end and caps at least.
As for powering up the main board to get the parameters out not going to work
the...
Showing results 1 to 25 of 500

 
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