Spindle Recommendation

[Phil_Par]

How do I wire my estop to stop the spindle?
Soft estop:
I am using Uccnc so if the software receives an estop signal from my button, everything stops including the spindle. Maybe by driving the rpm to zero? I don’t really know how the software stops the spindle.
Option 2 would be not to use uccnc and have a relay in between my estop button and the RST port in my VFD to signal a reset or stop then the spindle will stop.
Hard e stop:
Use a relay in between U V W and the spindle to cut power once activated by the estop button.

[mactec54]

How do I wire my estop to stop the spindle?
Soft estop:
I am using Uccnc so if the software receives an estop signal from my button, everything stops including the spindle. Maybe by driving the rpm to zero? I don’t really know how the software stops the spindle.
Option 2 would be not to use uccnc and have a relay in between my estop button and the RST port in my VFD to signal a reset or stop then the spindle will stop.
Hard e stop:
Use a relay in between U V W and the spindle to cut power once activated by the estop button.

None of the above is going to do what you want, U V W and you will smoke your spindle, there should never be any type of switching in the U V W connections for these spindles

You can use the fault circuit

PD052=02

FA FB FC connected in the EStop circuit this would be NC and open when there was a fault

Or just connect in the same circuit in the FOR and DCM On / OFF circuit

[Phil_Par]

There is a NC and a NO relay from FA FB FC terminals. If i set them to Fault indication as suggested for the e-stop, could I use it to power my water pump as well?
See the attached sketch for reference
Thanks

[mactec54]

There is a NC and a NO relay from FA FB FC terminals. If i set them to Fault indication as suggested for the e-stop, could I use it to power my water pump as well?
See the attached sketch for reference
Thanks

No it can only do one mode at a time, You could try it though I have seen some things like this work, you need NC for the EStop, put the EStop in the FOR and DCM circuit that will work if you are using the FC FB for your water pump

[Phil_Par]

Thanks Mactec.
I wired everything up and seems that I am unable to control the speed from uccnc.
The bob is emiting variable voltage to vI up to 10v when i increase or decrease the speed on uccnc. The 10v on the vfd is giving 10v constant.
I can turn on and off the spindle from uccnc as well
Pd001 & 2 are set to 1
What could i troubleshoot?


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[ger21]

Do you have the jumper set correctly for remote control?

[mactec54]

Thanks Mactec.
I wired everything up and seems that I am unable to control the speed from uccnc.
The bob is emiting variable voltage to vI up to 10v when i increase or decrease the speed on uccnc. The 10v on the vfd is giving 10v constant.
I can turn on and off the spindle from uccnc as well
Pd001 & 2 are set to 1
What could i troubleshoot?


Sent from my SM-G970W using Tapatalk

The 10V on the VFD is just a 10V supply and you don't use it unless it is need for a PWM supply so that is normal it will be how you have wired the 0-10v out from the Breakout Board

This needs to be connected to the VI and ACM make sure they are connected correctly The J1 Jumper needs to be on 1-2 pins

[Phil_Par]

I will add a relay between the FOR signal and wire it to my e-stop so I leave the FA FB FC relay for on/off the water pump.
I will check the jumper position and report back
Thanks for your help. Spindle is almost up and running!

[Phil_Par]

I moved the jumper and now I am able to control the speed from uccnc however not accurately. I set the speed at 17k on uccnc and vfd when to the max 24k. I lower the speed to 1k on uccn and spindle when down to 8-9k. Would this be a setting on the vfd i would need to adjust?

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[ericks]

I moved the jumper and now I am able to control the speed from uccnc however not accurately. I set the speed at 17k on uccnc and vfd when to the max 24k. I lower the speed to 1k on uccn and spindle when down to 8-9k. Would this be a setting on the vfd i would need to adjust?

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What bob are you using?

[ger21]

What is PD070 set to?

[wmgeorge]

My Hitachi takes a either a 0-10 vdc signal or a PWM signal whichever you select in the parameters. At 10 vdc it runs the drive at the maximum speed you have programmed in. You never want the drive below a certain speed or frequency as it will let the smoke out of the spindle. I have mine set to 120-130 Hz I forget but the speed of the motor never goes below 9,000 rpm unless of course its turned off.

BTW most drives come with documentation, what does yours tell you about where to program the min and max frequency?

[mactec54]

I moved the jumper and now I am able to control the speed from uccnc however not accurately. I set the speed at 17k on uccnc and vfd when to the max 24k. I lower the speed to 1k on uccn and spindle when down to 8-9k. Would this be a setting on the vfd i would need to adjust?

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Correct the minimum speed is related to the Parameters set 120Hz is 7200 RPM there is not much in the VFD to adjust the speed ratio this is normally the control software that you have to change

So the PWM output 0-10v you need to check this with your meter to see if it relates to the speed 12,000 should be 5v 24,000 10v

[Phil_Par]

What is PD070 set to?

Pd070 is set to 0 to work with the 10v.

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[ger21]

In UCCNC, what are your PWM Min and Max settings, and Min and Max Velocities (RPM)?

If you set the spindle to 12,000, what voltage are you getting?

[teamloks1]

is it worth to get constant spindle torque?

[mactec54]

is it worth to get constant spindle torque?

Yes and No it would depend on the VFD you buy and what speeds you will be cutting at, if you run at 2 or 3 different speeds the VFD can take care of that with a regular spindle, a good VFD can do a good job of giving you a constant torque, a constant torque spindle would be of more benefit only if you have a quality VFD that can support what it needs

[teamloks1]

just curious im still not test yet can my 400watt servo with 1:2 5mm pitch lift 25-30kg z axis?

[mactec54]

just curious im still not test yet can my 400watt servo with 1:2 5mm pitch lift 25-30kg z axis?

1:2 would be a struggle for it but if you mean 2:1 then it should be able to do that ok with the 5mm pitch screw, if you have a problem then you could add a gas spring too balance out the weight

[sarmadtahir]

It takes X watts (746) to make one Hp no matter if it comes from 120 or 240 volts. Transformers have losses so it's not free ride stepping up from 120 to 240 VAC. There are losses also in a VFD or Inverter when going from single-phase to three-phase.

Single-phase 240 volt Motors do not require a neutral wire. You only need two hot wires and equipment ground.

Higher voltage for a given load in kW lets you use smaller wire size. Three-phase is more efficient at running a motor as it does not require capacitors or starting devices.

For more Knowledge much pretty to visit bellow links
https://www.gudda.tech/2020/03/trans...losses-in.html