huang yang vfd

[chessie]

hi
i have just got back to wiring my denford cyclone lathe ,ive converted it to use acorn.
i also added a big 8 inch chuck with the bolt on jaws.
i seem to remember Marty had a similar issue to me

i already had a 4 kw vfd on it suposidly with dynamic braking . i added a 500w 50ohm braking resistor

anything over 1200 rpm causes the vfd to overload fault on stopping .

i cannot find the manual for it so wondered if anyone can recommend what settings for braking i should try .

on another post muzzer recommended a different vfd which i will buy if i have too for the lathe as well as the mill project.

The motor on the lathe is a normal 4 pole 2.2kw motor 1440 rpm (50hz) , the spindle is 1:1 with the motor. In the future i want torque at low revs for rigid tapping etc i set max rpm for 2200 rpm 76hz

so is this possible with this motor?

if not what should i buy ?

thanks

[Chaz]

Most of the HY VFD's dont have the required braking circuitry. If you look in the VFD, you might see that nothing is connected to the terminals (from the inside).

[tblough]

Lengthening your decel time on the VFD should help with the overvolt condition.

[cncsnw]

On an unrelated note, electrical components should be installed on a non-flammable surface: preferably metal.

[martyscncgarage]

As suggested. HY VFD's do NOT come with braking circuitry, and if they did, you need a braking resistor. I did get one, I did test it, it was marginal.
I don't buy them. HY Series is not a sensorless vector drive, GT series is supposed to be.

You want to do what you want, you need a good VFD. Automationdirect.com GS3 sensorless vector drive, TD400 series from Factorymation.com also sensorless vector drive, (make sure you program the feature) and buy the braking resistor....There are other VFD's out there, but those happen to be my go to drives for that kind of work.

Marty

[martyscncgarage]

Marc is right, don't use WOOD for a back panel something burns, wire etc...you are going to have a mess on your hands.
I use 5052 sheet aluminum cut to fit the cabinet from my local metal supplier. Has protective skin for layout, drilling tapping etc. Peel it off, bolt on the components and wire it up.....

Marty