[widgitmaster]

The construction of my new Super-V router is nearly finished, and I have started working on the electronics. So far I have everything required, including a new Manual Pulse Generator. Here is a list of the main components I'll be using:

65VDC 6A power supply.
Four Gecko G202 stepper drivers.
Bob Campbell's Breakout Board Plus.
Manual Pulse Generator, model ESM80.2.100.12.R.R

Now I have wired one other router in the past, so I feel confident that I can hook this one up without too much difficulty. The problem I'm having is the lack of information as to the correct application of the Manual Pulse Generator to the breakout board.

I have contacted Bob Campbell, and he said the Manual Pulse Generator is compatible. He also said he would look for a document which explains how to add it to the breakout board. Unfortunately he has not responded. Now I'm in need of this information, so I can design the console which will have all the controls and switches for the router.

If anyone has any information as to the proper procedure and wiring, it will be greatly appreciated!

Widgit

[jalessi]

This document gives basic wiring not directly applicable to the Campbell product however it may help you.

[One of Many]

I've been kind of pondering how this was done in Mach, me-self; on the CNC4PC board.

The pendant I have is a Euchner with MPG, Estop and a few optional function buttons. The back burner was imagining what inputs would be required with a second port to utilize.


Thanks much for the thread and good info to match it.

DC

[widgitmaster]

Thanks for the replies!

Now I just realized I've been looking at the older .PDF file rev 1.7 of my breakout board, as I have a rev 1.8 board.

The rev 1.8 file indicates that the 6-pin jumper J23 is for Encoder, and the silkscreen on the board says MPG.

J23
Pin1 Isolated GND
Pin2 Isolated gnd
Pin3 Isolated to pin 12 of parallel port (in1)
Pin4 Isolated to pin 13 of parallel port (in2)
Pin5 Isolated to pin 15 of parallel port (switch)
Pin6 Isolated +5v

One the back of the MPG, there are four screw terminals:

1 5v/12v
2 0v
3 A
4 B

If I read the .PDF from MyLittleMachineShop.com correctly, all I need to do is connect the following pins:

Pin6 -> 5c/12v
Pin1 -> 0v
Pin3 -> A
Pin4 -> B

However it is unclear that 0v = GNG so I still need someone like Marris to validate my conclusion!

After this is wired in, it looks like my MACH3 software is the only way to use it, and to designate which axis to jog. This is a little confusing as well, as I have seen many a CNC console with an Axis selector switch or dial to choose which axis to move!

Thanks again,
Widgit

[One of Many]

Can't tell you what GNG is, but I am confident GND should be 0v.

An MPG is an encoder with detents for operator feedback, used manually to produce a pulse stream. Pins with 0 and 5v power up the devices and outputs are A&B from the MPG.


You hit on why I posted that MPG picture. It has a 6 position axis selector which codes through 3 pin outputs used in a binary format. If you needed 6 selections you would need 3 bits to represent that to 3 inputs to a control. Since most of us are going with 4 axis max, this could be represented via 2 bits or pin inputs for 4 binary state changes. I was hoping to use the optional function buttons as X1, X10, X100 or Jog high and low speed.

I doubt there is enough inputs to take full advantage of all these functions individually. My thoughts were, in an effort to reduce the amount of pins required for extra conveniences.

Like in a 2 button jog function that re-uses the MPG inputs. One button could disconnect the MPG output signals and another set of buttons could send out a pulse stream on those A&B lines to function as a jog with variable frequency.

DC

[jalessi]

Wigitmaster,

A rotary switch or several momentary switches will control the selected axis.

A Second Parallel Port Will Be Required To Address All The Triggers.

The OEM Triggers need to be toggled.

OEM Trig #1
Select Axis X

OEM Trig #2
Select Axis Y

OEM Trig #3
Select Axis Z

OEM Trig #4
Select Axis 4


The ones below are for speed selection

OEM Trig #5
X1


OEM Trig #6
X10


OEM Trig #7
X100


You are correct zero (0) is ground.

Jeff...

[widgitmaster]

Can't tell you what GNG is, but I am confident GND should be 0v.

An MPG is an encoder with detents for operator feedback, used manually to produce a pulse stream. Pins with 0 and 5v power up the devices and outputs are A&B from the MPG.

DC

Oops!
Actually GNG was a (fat finger) typo, something my arthritic hands do alot!

[widgitmaster]

Wigitmaster,

A rotary switch or several momentary switches will control the selected axis.

A Second Parallel Port Will Be Required To Address All The Triggers.

You are correct zero (0) is ground.

Jeff...

Before I add a rotary switch to my list, is this selection process actually done in MACH3 ? There are several screen shots that indicate settings for an MPG in MACH3



Widgit

[jalessi]

Wigitmaster,

MPG Speed and Axis Selection can always be controlled from within Mach.

The addition of physical switches will give you external (remote control) options as well.

Jeff...

[One of Many]

Jeff,

So, I take it that the Pendant function takes up 7 pins for selections and 2 for pulses?

DC

[jalessi]

DC,


Seven pins to select each trigger,

+5 volts to trigger them high

Two pulse connections

One ground connection

Some BOB's get pulled down so then trigger would go low or ground instead.

Jeff...

[One of Many]

I am surpized the software doesn't take advantage of binary mode selection format to reduce the number of pins required. Leaving some for "other functions". 2 for pulses, 2 for axis, and 2 for speed.... sounds better than 9 dedicated.

DC

[widgitmaster]

Thanks for all the replies
As soon as I get a chance, I will do a mock run to see how it responds!
Having an external MPG on my new machine is going to give it a touch of professionalism which I like

Thanks again,
Widgit

[jalessi]

Wigitmaster,

Please note if you plan on using mechanical limit, home switches and the external MPG selection switches an additional Parallel Port will be required.

Jeff...

[jalessi]

Please DC That would be to simple

[One of Many]

Oops!
Actually GNG was a (fat finger) typo, something my arthritic hands do alot!

I figured it was something like that. Gotta give you a little ribbing once in a while.

One other function I had considered would be handy as the MPG function was a stylus format to create the old tracer mills to copy a part, rather than program it without need for geometry. Might not be worth it, but the concept sounded appealing.

DC

[PEU]

Wigitmaster,

A rotary switch or several momentary switches will control the selected axis.

A Second Parallel Port Will Be Required To Address All The Triggers.

The OEM Triggers need to be toggled.

OEM Trig #1
Select Axis X

OEM Trig #2
Select Axis Y

OEM Trig #3
Select Axis Z

OEM Trig #4
Select Axis 4


The ones below are for speed selection

OEM Trig #5
X1


OEM Trig #6
X10


OEM Trig #7
X100


You are correct zero (0) is ground.

Jeff...

Hi Jeff, maybe its a silly question, but how do you configure Mach3 to follow the OEM triggers? does one need to edit the mach screen to accomplish this? Thanks!

[jalessi]

Pablo,

Yes you would type in the correct Pin - Port and enable the Triggers you want by changing the Red X to a Green Check mark.

If you are using a second LPT Port select the corresponding Port number either Port 2 or Port 3, your original LPT Port should be Port 1

Depending on the breakout board you have, Active Low may need to be changed also.

Jeff...

[PEU]

Hi Jeff, thanks for the prompt reply.

I do understand how to enable each pin, my question is how to make these oem triggers do certain function, for example:

I see that oem#6 is triggered that should set the feed rate (x10) at a certain midrange value, lets say 10% for this example (I would use 30%)

then I see oem#2 triggered, this means Y axis is about to be moved

And then I move the MPG Clockwise, meaning I want to move the Y axis at the current set feed rate (x10) to a bigger Y position.


How do I configure mach3?


Also in your oem trigger list I would add a new one to enable/disable the pendant

Thanks again!

[jalessi]

Pablo,

You can assign almost any task to a Hotkey.

The OEM Codes are used by assigning a OEM Code to a Hotkey

See screenshot of "System Hotkeys" Setup screen

See attached PDF for OEM Button Codes

Hope this helps.

Jeff...