Boxford TCL125. (Fresh start )

[depronman]

Hi John
Sorry I forgot that my isolator board on the lenze was buggered.
So I had to work around the lack of isolator board
You can take the simpler root of using the pwm output from the BoB into the input on the lenze isolator board
You also take a couple of wires from the lenze controller into and the out of the BoB relay
So the relay will turn the lenze controller on and off
The BoB typically as the par port pin17 output set to control the relay
So linuxcnc in Hal links the par port 17 out to the m3 command and spindle start buttons
This in turn triggers the relay on the BoB and that turns the lenze on
You then send the S value. Eg s1000 to the BoB and thee BoB generates a voltage (pwm) between 0v and 10v. This voltage is sent to the lenze input and thus creates a specific speed of ration on the spindle

Sorry about the confusion
If you did t have the isolation board then this is where the diycnc board comes into play, it would take step/Dir pulses from the BoB and use that to create a 0v to 10v output for the lenze

Cheers Paul


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[Clive S]

Sorry about the confusion
If you did t have the isolation board then this is where the diycnc board comes into play, it would take step/Dir pulses from the BoB and use that to create a 0v to 10v output for the lenze

Or one of these:-

https://www.ebay.co.uk/itm/PWM-to-Vo...72.m2749.l2649

[John11668]

Hi folks
A few steps forward today. 0-10v from the board is varying spindle speed up to about 3500revs
So now I need to find our how to wire the spindle encoder and configure it . Not intuitive this

[inee]

Hi john.
the colour codes for the wires is in the manual, the index is a single slot on the disc, the timing has a lot more. If the index doesn't trigger correctly you need to widen the slot a tad

[John11668]

Am playing at the moment in Mach 3 but fully intend to convert to Linux when I get everything working!
I have the encoder cable but just unsure how to connect it . I dont have a pinout for this Bob. (They dont do instructions for this price )
https://www.ebay.co.uk/itm/Mach3-CNC...0AAOSw6Olffu9N

I got to the pin settings for the 0-10v output by trial and error with motor set for step /direction control rather than PWM. It works but I may not have it right and I am struggling to understand how a step /direction signal controls a relay or a voltage output , so I am apprehensive about connecting an encoder without understanding what I am doing and why I am doing it .

Is there any clear guidance or manual for this task.

Prior to this my only experience was the mill function. I can handle the idea that inputs to pins 2 and 3 provide step and direction instructions to a stepper driver for X motion.
Y and Z similarly. and the CNC4 you board had specific instructions for spindle "on " control. I never got around to varying the spindle speed .
Choosing the pin settings to make X Y and Z movements happen seems intuitive enough .
and spindle relay on is not too hard to grasp in Mach. But pwm and encoder settings are at the moment testing my intellect a bit

I have looked for pin settings for this board but cant find specific ones online .

Which Manual are you referring to Inee? Cant see anythingin the Boxford or Lenze manuals and I dont think I have one specifically for the encoder.
Will explore a bit more .
If someone can hold my hand here and tell me which pin settings to select to get me going , I suspect that things will begin to fall into place and from there I can maybe ask the relevant questions to give me an understanding of what settings I have made .

[inee]

Hi john the boxford manual (will link in a tick





Below is the manual should be for your bob,
MACH3-BL-MACH-V1.1.pdf