[edmunns]

Hi all,

Was wondering if any sparkies/electrical engineers have experience with hooking up 240v 3 phase servo drives in metro areas in Australia.
I have seen 3 phase 240v induction cooktops with similar requirements but they are hardwired. I would assume that it could be done through
a normal 3 phase outlet if there are 3 240 actives to the meter box, but it may be a transformer jobbie. Wouldn't mind running a 2kw servo as a spindle motor.
Anyone had any experience with this?

Thanks in advance

Ed.

[Al_The_Man]

What is the nature of the servo you have in mind?
Modern ones would be BLDC mainly, but these still require a controller to convert any 3phase supply to BLDC, unless you were thinking of controlling one with a VFD, I have tried this with poor success, there are I believe some that will do it supposedly.
If you have the original controller then you should be OK.
I did use a Fanuc servo motor as a spindle, but had to change the encoder as the one on the Fanuc has a proprietary commutation method.
Al.

[Gippy]

Hi all,

Was wondering if any sparkies/electrical engineers have experience with hooking up 240v 3 phase servo drives in metro areas in Australia.
I have seen 3 phase 240v induction cooktops with similar requirements but they are hardwired. I would assume that it could be done through
a normal 3 phase outlet if there are 3 240 actives to the meter box, but it may be a transformer jobbie. Wouldn't mind running a 2kw servo as a spindle motor.
Anyone had any experience with this?

Thanks in advance

Ed.

Have a look at the Bosch rexroth drives - pretty sure they do a 2kw unit that can be wired for single phase in.

[edmunns]

Looking at second hand units out of South Korea, Samsung, Panasonic etc. Seems anything over 750 watt is 3 phase 220 volt.

I did use a Fanuc servo motor as a spindle

For this exact reason.

What was your experience with torque with a servo as a spindle Al? I am thinking of using one as a main spindle on a benchtop mill so position is not really a big factor.

Have a look at the Bosch rexroth drives - pretty sure they do a 2kw unit that can be wired for single phase in.

Thanks, I think I saw one of them a while back, I will check it out. Just a bit worried the power point will cost more than the whole machine haha.

[Gippy]

Looking at second hand units out of South Korea, Samsung, Panasonic etc. Seems anything over 750 watt is 3 phase 220 volt.

For this exact reason.

What was your experience with torque with a servo as a spindle Al? I am thinking of using one as a main spindle on a benchtop mill so position is not really a big factor.



Thanks, I think I saw one of them a while back, I will check it out. Just a bit worried the power point will cost more than the whole machine haha.

Mate, a normal GPO / powerpoint will handle that no problems.
Relax, put a bit of spit on the plug and stick it in. its all good.