Spindle Voltage Output

[millerm499]

Hey guys.

I could really us some help finishing up connecting my 2.2KW spindle to my CRP Plug and Play electronic box. I have followed the instructions of the youtube video below. I have the exact setup from the spindle, inverter, Mach3 and breakout boards. I have checked all the parameters and found out that the breakout board is only supplying 7 volts to the inverter. I have changed the spindle speed from 24,000 RPM to 12,000 RPM and it still outputs 7 volts. The spindle turns on by Mach 3, but I cannot change the speed in Mach 3. Any help would be greatly appreciated.



Thanks
Mike M

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[ger21]

So, that's not your video??

Need to see your Mach3 settings.

[millerm499]

That is correct this is not my video. But I have the same settings that he is showing. I apologize if I was not suppose to link this video. What other settings in mach would you need to know.

Thanks
Mike M

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[ger21]

ports and pins > Output pins.

[millerm499]

Here is what I have for the output

[ger21]

Sorry, I meant motor outputs, specifically for the spindle. I was going by memory, as I don't have Mach3 installed here.

[millerm499]

No Problem. Here is the motor output

[ericks]

No Problem. Here is the motor output

This is mine and it works fine

[millerm499]

I made the changes to Mach3 and it seems that the output voltage is different. When I tell it to output 24,000 RPM it outputs 5 volts. When I tell it to output 12,000 RPM it outputs 3 volts. But the RPM do not change.

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[ericks]

Now you getting a varying output which is a good start

[millerm499]

Yes. I agree, but why would it be 5 and 3 volts instead of 10 and 5 volts for the above RPM.

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[ericks]

I made the changes to Mach3 and it seems that the output voltage is different. When I tell it to output 24,000 RPM it outputs 5 volts. When I tell it to output 12,000 RPM it outputs 3 volts. But the RPM do not change.

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Do you want 0-5V or 0-10V from you bob to your VFD...don't worry about the rpm not changing yet...we can sort that just now

[ericks]

Yes. I agree, but why would it be 5 and 3 volts instead of 10 and 5 volts for the above RPM.

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Okay you just answered my question....you want 0-10V. Now i am not sure what bob you using, do you maybe have a selection on your bob for 0-5V / 0-10V??

[millerm499]

Okay you just answered my question....you want 0-10V. Now i am not sure what bob you using, do you maybe have a selection on your bob for 0-5V / 0-10V??

I am pretty sure that it is a 0-10 volts because it was producing 7 volts.

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[ericks]

I am pretty sure that it is a 0-10 volts because it was producing 7 volts.

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True that makes sense....i need to know your other settings for the spindle

[ericks]

I used a relatively low pwm base frequency because i use a microcontroller to read this signal. You might use a higher frequency
........select minimum pwm as 0


basically use my settings as a starting point

[ger21]

What are your pulley speeds set to?

[millerm499]

What are your pulley speeds set to?

Max 24000, min 0, ratio 1

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[ger21]

And if the voltage is changing, but the VFD is not, then you're VFD settings are wrong. Check PD001 and PD002. There's also a jumper that needs to be set correctly.

[millerm499]

And if the voltage is changing, but the VFD is not, then you're VFD settings are wrong. Check PD001 and PD002. There's also a jumper that needs to be set correctly.

I have checked the PD settings. Where is this jumper located. Do you have a pic that might help.
Thanks

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