Controlling an AC servo as a spindle on a lathe - wiring suggestions

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jay_m
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Controlling an AC servo as a spindle on a lathe - wiring suggestions

Post by jay_m »

Hi guys.
I am trying to wire up an AC servo drive to control a servo as my spindle drive on a Rhino 8 lathe. It's a 3.8kW servo. The driver takes a -10 to 10V analog signal. The Acorn only outputs 0-10V. Is there another way to control it? It can obviously take step and direciton, I just dont know how to configure the software to control the spindle with that signal. I am also using the 3rd axis outputs to control a stepper motor on a turret.
Any suggestions are appreciated.
suntravel
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Re: Controlling an AC servo as a spindle on a lathe - wiring suggestions

Post by suntravel »

Depends on the driver.

I use 0-10V for speed and the Dir Input on the driver to change direction.

Uwe
jay_m
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Re: Controlling an AC servo as a spindle on a lathe - wiring suggestions

Post by jay_m »

The driver only takes -10 to 10V input if it's controlled with analog signal. The step and direction signals are used if that mode of control is used/enabled.
suntravel
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Re: Controlling an AC servo as a spindle on a lathe - wiring suggestions

Post by suntravel »

pls post the manual.

Here is the wiring for JMC Servos as spindle drive.

Uwe
Attachments
JASD Servo Spindle.pdf
(275.41 KiB) Downloaded 52 times
jay_m
Posts: 11
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Re: Controlling an AC servo as a spindle on a lathe - wiring suggestions

Post by jay_m »

I have attached the manual. Hopefully it opens up.
Attachments
servo user manualv6.3.pdf
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jay_m
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Re: Controlling an AC servo as a spindle on a lathe - wiring suggestions

Post by jay_m »

suntravel wrote: Fri Aug 19, 2022 3:37 pm pls post the manual.

Here is the wiring for JMC Servos as spindle drive.

Uwe
That is helpful. Looks pretty similar.
suntravel
Posts: 1967
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Re: Controlling an AC servo as a spindle on a lathe - wiring suggestions

Post by suntravel »

SigIn6 should work to change direction
Gary Campbell
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Re: Controlling an AC servo as a spindle on a lathe - wiring suggestions

Post by Gary Campbell »

Check out CNC4PC's C89 adapter board to convert analog signal to -10/+10
GCnC Control
CNC Control & Retrofits
https://www.youtube.com/user/Islaww1/videos
jay_m
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Re: Controlling an AC servo as a spindle on a lathe - wiring suggestions

Post by jay_m »

Thank you for that suggestion. I will definitely give it a try, I didn't know that existed.
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