Machsupport Forum
Mach Discussion => General Mach Discussion => Topic started by: Romanr9999 on November 09, 2010, 07:46:39 AM
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Is it possible to control the spindle speed using a frequency inverter and sending the speed information from Mach3 via Modbus?
I know I can use PWM or pulse/dir signals, although I´m running out of available pins, so I thought using modbus for this.
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Hi,
Yes, if your inverter can communicate via Modbus.
Cheers,
Peter.
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Yes, the inverter uses modbus and I know how to set it up for this.
I don´t know how to setup Mach3 to give this information tho the inverter via modbus.
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Hi,
Have a look at this thread. It shows how it was done for a Hitachi VFD.
http://www.machsupport.com/forum/index.php/topic,16316.0.html
You will need to look at your manual to find the appropriate registe numbers.
Cheers,
Peter.
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Peter,
Thanks a lot!!
I´ll take a deep look at that. It seems to be what I need.