Thread: Boxford TCL125. (Fresh start )
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14-10-2020 #11
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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