2HSS86H Driver... AC or DC PSU?

[JW1977]

This is from the manual but im still leaning towards going DC.
After all, its quite fun building the PSU...

[Clive S]

This is from the manual but im still leaning towards going DC.
After all, its quite fun building the PSU...

So yes you had it the wrong way round. I would up the toroidal transformer to 25- 0 - 25 which would give you about 70v dc when rectified . good vid here. https://www.youtube.com/watch?v=4OoQ...zD30sZjtp_VyqY

[JW1977]

Ok, thanks but i don’t get where I’m wrong, could you please explain?

As i see it i have the choice to run them with AC and a PSU consisting of only a thoridal transformer.

The other alternative would be DC and a PSU with transformer, rectifer and caps.
The motors have 1,8 mH inductance so I figured a 48V PSU would be sufficient to get speed and reduce heat and back EMF.

Heres Another schematic where it says AC or DC as Power supply!?

[Clive S]

Ok, thanks but i don’t get where I’m wrong, could you please explain?

As i see it i have the choice to run them with AC and a PSU consisting of only a thoridal transformer.

The other alternative would be DC and a PSU with transformer, rectifer and caps.
The motors have 1,8 mH inductance so I figured a 48V PSU would be sufficient to get speed and reduce heat and back EMF.

Heres Another schematic where it says AC or DC as Power supply!?

Ok when I said you had it wrong I was referring to "My drivers (JMC 2HSS86H) can be run with 24-70V DC or 30-100V AC" you have the DC and AC transposed .

You indicated that you would be leaning towards DC.

You can have either a transformer with caps and a rectifier OR just a transformer.

Forget about the back EMF the caps take care of that ( there are caps in the driver as well) The heat is what you set the current to on the drive.

If you want speed for wood routing then a higher voltage PS is beneficial. I would go with 70V DC but your choice.

[JW1977]

Ok, got it!
I´m gonna take your advice regarding the PSU and build a DC one with higher Voltage.
Thanks!

[Clive S]

Ok, got it!
I´m gonna take your advice regarding the PSU and build a DC one with higher Voltage.
Thanks!

Ok don't worry about asking questions its cheaper than getting it wrong. Check out Joe's vid its a good guide.

This is a good place for a one stop shop https://www.rapidonline.com

[JW1977]

Ok, thanks!