Hello. Does anyone have a photo of the wiring of a zero touch probe to a PRT-E1500 or a link to were i can find this info .Thank you for any support.
Hello. Does anyone have a photo of the wiring of a zero touch probe to a PRT-E1500 or a link to were i can find this info .Thank you for any support.
PRT-E1500 with be the model number for the VFD drive for the spindle motor
various Chinese CNC machine builders make control boxes that look identical on the outside but the electronics inside can be very different
some use an all in one BOB & stepper drivers on a single board
others a BOB & individual stepper drivers
Photos of the inside showing the printed circuit boards will help identify what you have
some times they don't always install all the components to the BOB's PCB used in machines without a connector to plug in a touch probe
example of a BOB with some parts not installed
Attachment 430218
photo taken of the net showing the inside of a CNC machines control box
the PRT-E1500 VFD board is in the foreground
Attachment 430220
John
Thank you John for your reply. I will Take some photos. and return back.
Hi John. Here are the photos. the 2 holes are where i was going to put a connection for the touch probe so the wires don't go straight through.
James
Hi James
you need to connect the probe to the red board in your first photo
this is the USb motion controller you have
Attachment 430264
looking closer the board has 4 inputs
Attachment 430266
assuming the board replicates a PC parallel printer port
I guess IN1 to IN4 on the board will be pins 10 to 14 in mach 3 /4s pins and ports set up
I expect the terminal DCM is going to be the common terminal for the 4 inputs
it looks like the 4 opto-isolators LEDs are connected to +24V via 4 resistors to limit the LED current
when an input terminal ( IN1 to IN4 ) is grounded to the terminal DCM
John
PS
possible input wiring
Attachment 430268
Thank you John for taking the time out of your life to help me it is much appreciated and honorable. Just a recap if i put the probe wire into IN2 and the ground into DCM then im good to go. In the first photo if you look at the top on 5v you can see 4 wires that are twisted together,one of them was just barly holding so in the next photo all fixed gloud i found that.
Hi John. Photo of installed wires hope its all the right way. haven't turn the power on as yet waiting for your reply. the red colour is probe and the the green is ground. James
Hi James
that looks correct
do you have a multimeter ?
can you confirm one of the black wires connected to terminal DCM goes to the 24V power supplies negative output terminal
and a red wire connected to the 24V terminal goes to the 24V power supplies positive output
which touch probe do you have ?
is the probe isolated from the machine
or does it connect the machines body / spindle to the motion controller connection DCM terminal (the green wire ) ?
John
Hi John. Here is the photo of the prob. I have a friend who is a tv repair man, he has no knowledge of cnc probes but he check it for me and it was showing 22.8 v. This is not my area of knowledge and have never used a multimeter but this looks like its going to work I will now set it up in mach3. I will give you feed back and hopfuly a vidio as well. Thank you very much John will return tommrow. James.
Hi John. I open up mach3 and tested the prob this is whats happening. In photo 1 shows when the tool touches probe. The second pic is settings. 3rd pic needs a script g-code, can you recomend any that is in metric. Thank you.... James
Hi James
The probe wiring in post 9 looks correct with the isolated touch plate connected to the boards input
Looking at the second photo in post 10 the probe is assigned to pin 15
As the board only has 4 inputs I expect you need to assign the probe to one of the other 4 possible input pins - pins 10 to 13
I have not used scripts with mach 3 so I can't answer your last question
John
Hi John. Can't seem to stop it activating the e-stop. when i touch the two togeather it should light up the digitize as in the photo and not the others. I played around with ports and pin settings with no success. Not sure what to do now. Ill have to do more reserch and hopfuly find a answer to this. I would like to thank you for your time and help John. Im a little bit further today then i was a few days ago and for that i thank. James
Hi John. I found a photo online showing the probe wiring. Hope it can help others. James