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Search: Posts Made By: GaryS
Forum: LIVE PLC Questions And Answers Yesterday, 01:53 PM
Replies: 12
Views: 448
Posted By GaryS
I have not done a HMI directly to a vfd it would...

I have not done a HMI directly to a vfd it would be an interesting project I am sure it could be done Net Studio Modbuss
the Yaskawa allows you to mount the operator keypad remotely using...
Forum: LIVE PLC Questions And Answers Yesterday, 01:42 PM
Replies: 12
Views: 448
Posted By GaryS
In fact Yaskawa has a vfd that will meet your...

In fact Yaskawa has a vfd that will meet your needs
they have a free downloadable software to program the them
also check out there Qpump vfd
Forum: LIVE PLC Questions And Answers January 20th, 2020, 03:01 PM
Replies: 11
Views: 576
Posted By GaryS
keep in mind if you are going to add a brake...

keep in mind if you are going to add a brake chopper (DBU) to existing vfd you must use the one for the vfd you are using they work off the buss voltage if you get it wrong the vfd may shut down on...
Forum: LIVE PLC Questions And Answers January 20th, 2020, 11:43 AM
Replies: 20
Views: 886
Posted By GaryS
Just for the record the information I posted came...

Just for the record the information I posted came from a conversation I had with rockwell on just that problem if memory serves it was an L16 and it was limited to 6 nodes we added another drive...
Forum: LIVE PLC Questions And Answers January 20th, 2020, 10:35 AM
Replies: 8
Views: 397
Posted By GaryS
Is the PID control in the main task ? in the...

Is the PID control in the main task ?
in the Logix 5000 the PID controls must be in parodic task recommended 10ms or longer
the main task runs to fast for it to work the output will go full scale...
Forum: LIVE PLC Questions And Answers January 19th, 2020, 10:38 AM
Replies: 11
Views: 576
Posted By GaryS
I hate to be the bearer of bad news but the...

I hate to be the bearer of bad news but the system should have been designed to use an elevator or hoist drive from the beginning. A standard vfd will have difficulty handling the demands of a...
Forum: LIVE PLC Questions And Answers January 19th, 2020, 10:13 AM
Replies: 6
Views: 398
Posted By GaryS
On the other thread the problem was the L16...

On the other thread the problem was the L16 processor he was using could only communicate to a limited number of nodes (Devices) on the network. Because of this limitation it drop nodes at random....
Forum: LIVE PLC Questions And Answers January 19th, 2020, 09:59 AM
Replies: 8
Views: 397
Posted By GaryS
for starters your picture did not come out try...

for starters your picture did not come out try resizing it.
if the PID output is at 100% then it looks like the heaters aren't large enough to do the job
it sound like the you need to go back to...
Forum: LIVE PLC Questions And Answers January 18th, 2020, 10:28 PM
Replies: 20
Views: 886
Posted By GaryS
The only option you have is to upgrade the...

The only option you have is to upgrade the processor
I ran into that same problem some time back
it will drop communications to a node at random you will not know witch until it happens
and...
Forum: LIVE PLC Questions And Answers January 18th, 2020, 09:43 AM
Replies: 9
Views: 303
Posted By GaryS
do a file search to find the first open position ...

do a file search to find the first open position
don't forget to reset the full field when the remove a pallet
some places use a product code I a field then you can just search for the product...
Forum: LIVE PLC Questions And Answers January 18th, 2020, 09:20 AM
Replies: 9
Views: 303
Posted By GaryS
a multi dimensional array is he way to handle it ...

a multi dimensional array is he way to handle it
Pos no. , full / empty, horz position. vert position
you could add whatever other information you want maybe item number
laser position sensor...
Forum: LIVE PLC Questions And Answers January 16th, 2020, 11:06 PM
Replies: 5
Views: 351
Posted By GaryS
Short answer is yes Use Modbus communications ...

Short answer is yes
Use Modbus communications
I would just use a cheep desk top computer
Forum: LIVE PLC Questions And Answers January 16th, 2020, 10:06 PM
Replies: 41
Views: 2,029
Posted By GaryS
it the way the PLC handles the different data...

it the way the PLC handles the different data types
with a real / float type they trim the lower bits to fit the are deemed to small in value to be any use.
with an it they don't do that that's...
Forum: LIVE PLC Questions And Answers January 16th, 2020, 08:54 PM
Replies: 41
Views: 2,029
Posted By GaryS
if the math overflow bit is set when the program...

if the math overflow bit is set when the program starts rung 0 it will fault the processor
the trick is to cleat the fault bit on the last rung of the program
Forum: LIVE PLC Questions And Answers January 11th, 2020, 08:57 PM
Replies: 7
Views: 321
Posted By GaryS
You first need to find out how much torque you...

You first need to find out how much torque you need for the job and if I was specifying it, I would add about 10% to that what max speed do you need is the place to start
all those gears just add...
Forum: LIVE PLC Questions And Answers January 11th, 2020, 08:31 PM
Replies: 7
Views: 321
Posted By GaryS
It really doesn't matter what you are controlling...

It really doesn't matter what you are controlling axis feed or spindle
the speed range is 5000 to 1 rock solid
now if you need a gear reduction to multiply the torque then you will need the gear...
Forum: LIVE PLC Questions And Answers January 11th, 2020, 08:15 PM
Replies: 15
Views: 635
Posted By GaryS
you should set the drive to ramp to stop so you...

you should set the drive to ramp to stop so you can control the stop
with coast to stop the heaver load will coast longer with ramp the stop will always be the same.
Forum: LIVE PLC Questions And Answers January 11th, 2020, 08:10 PM
Replies: 7
Views: 321
Posted By GaryS
Without the need to control the feed all you need...

Without the need to control the feed all you need is a single Flux Vector Drive
Standard max motor speed is 5,000 rpm on a 4 pole motor Base speed 1,800 rpm
no plc needed, just set the speed you...
Forum: LIVE PLC Questions And Answers January 11th, 2020, 07:32 PM
Replies: 7
Views: 321
Posted By GaryS
Way to complicated and you haven't even done...

Way to complicated and you haven't even done anything about the feed for the spindle
All you need to 2 Flux Vector VFD's no gear change
5000 to 1 speed range on the VFD will get you any speed...
Forum: LIVE PLC Questions And Answers January 11th, 2020, 12:42 PM
Replies: 10
Views: 539
Posted By GaryS
you have 21 separate alarms in 2 words B9:0 and...

you have 21 separate alarms in 2 words B9:0 and B9:1 each is a separate bit
you need to setup the Panelview alarms for bit alarm
that way you can show each alarm as they pop up
Forum: LIVE PLC Questions And Answers January 10th, 2020, 06:29 PM
Replies: 15
Views: 635
Posted By GaryS
Are you using a VFD to run the motor if so try...

Are you using a VFD to run the motor
if so try setting it ramp to stop and maybe add a braking resister
Forum: LIVE PLC Questions And Answers January 10th, 2020, 03:42 PM
Replies: 10
Views: 539
Posted By GaryS
the picture did not come through

the picture did not come through
Forum: LIVE PLC Questions And Answers January 10th, 2020, 02:53 PM
Replies: 10
Views: 539
Posted By GaryS
Why are you looking at B9:50 when you alarm words...

Why are you looking at B9:50 when you alarm words ae B9:0 and B9:1
the B9:50 may be a log file
set your alarm to look at B9:0 and B9:1 word value = 1
Forum: LIVE PLC Questions And Answers January 10th, 2020, 01:10 PM
Replies: 8
Views: 357
Posted By GaryS
you could use reals as an index best practice an...

you could use reals as an index best practice an index should be integer
array N7 element 6 would hold the hole number of the result and N7element 7 would hold the decimal part of the number.
the...
Forum: LIVE PLC Questions And Answers January 10th, 2020, 12:16 PM
Replies: 8
Views: 357
Posted By GaryS
N7 would be an integer array N7[6] - N7[7] are...

N7 would be an integer array
N7[6] - N7[7] are indexed elements of the same array
I assume that Sourc1 and Source 2 are both integers as well
data type is important as to how they are handled ...
Showing results 1 to 25 of 500

 
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