Machsupport Forum
Mach Discussion => General Mach Discussion => Topic started by: c30232 on July 23, 2017, 05:21:09 PM
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I wish to control a router spindle from VFD via Mach. Unfortunately, I do not have a schematic/manual for the BOB. Nor can I get the seller to provide information beyond that the feature is on the BOB.
I found a dull and corroded terminal pair that were away from the rest. I guessed at the pin. I am able to switch the spindle on and measure 2 volts at the terminal. That's the end of progress.
The terminal seems to have a sub-board section related to just that pair. There is a pot on that section. Dialing the pot does not change the voltage.
If I have found the correct terminal then the issue is within Mach. How do I best configure Mach in order positively identify the terminal and set the voltage range?
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Start by posting a picture of your board.
Then tell us what model the VFD is, and what terminals on the VFD the wires from your BOB go to.
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See attached. I am searching for a manual for input terminals. I thought output voltage would be good to find before crawling under to have a go at the VFD. The VFD will soon be easily accessible, we are removing the vacuum table to access the gantry attachments.
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More data attached.