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Modbus / modbus vs psm or which is what?
« on: March 22, 2015, 04:31:08 PM »
I have been running a delta vfd-m and 2.2kw GMT spindle combo on a cnc router setup for about a year or so without control from mach 3.
I tried without success to use a pmdx 107 added on to my pmdx 126 when we were just getting set up but abandoned the trial to get some work churned out.
I recently had to replace a computer and decided to revisit this.
I'm far from an electrical engineer so talk down to me, you won't hurt my feelings.
When I first started the build I somehow didn't take notice of modbus control but now I see all kinds of info. I assumed I wanted pwm signal control but now I'm really confused.
My first question is which is the better method to control the spindle speed and on off process?
The delta m specs state it has built in modbus communications.
I tried without success to use a pmdx 107 added on to my pmdx 126 when we were just getting set up but abandoned the trial to get some work churned out.
I recently had to replace a computer and decided to revisit this.
I'm far from an electrical engineer so talk down to me, you won't hurt my feelings.
When I first started the build I somehow didn't take notice of modbus control but now I see all kinds of info. I assumed I wanted pwm signal control but now I'm really confused.
My first question is which is the better method to control the spindle speed and on off process?
The delta m specs state it has built in modbus communications.