Can this motor run on single phase?

[Bill Edwards]

Yes, the full load current appear to be 2.9 from the plate so this is what you would set the inverter max current limit to (might be a parameter called imax, i limit, current limit or similar)

Low speed and high speed settings are the min and max speeds you want the inverter to run at. You don't want the low speed so low as to lose cooling, something like 15hz is enough but you can feel the airflow through the motor and judge how low you can go. Too low and you can cook the motor if run for long periods at low speed.

for high speed - generally yes you can run at higher speed than 50 hz but seeing as your already running on reduced voltage then I wouldn't go too far, but there should be no harm in trying as a test. It'll either work or it won't, I would take a guess even with the reduced voltage it would still be ok at higher speeds.

How does the clutch operate, you may need to do some jiggery pokery to get this to work depending on the existing arrangement as the inverter won't supply the existing switchgear. (Unless it's mechanical?)

Brilliant, thanks. Guess what I'm doing tomorrow
The clutch is mechanical.

 

[daleyd]

Brilliant, thanks. Guess what I'm doing tomorrow
The clutch is mechanical.

Ah that makes it easier!

Good luck, I reckon you'll be reet with that set up - here's a link to a better explanation from inverter drive supermarket website.

https://inverterdrive.com/HowTo/240V-Supply-to-a-400V-AC-Motor/

 

[Bill Edwards]

Ah that makes it easier!

Good luck, I reckon you'll be reet with that set up - here's a link to a better explanation from inverter drive supermarket website.

https://inverterdrive.com/HowTo/240V-Supply-to-a-400V-AC-Motor/

Great link, thanks.
One little headache/question as I try to connect it. Which of these connections do i use for the 240 1ph input, I'm reading it as though it can be any of these three with the earth separate?

 

[daleyd]

Great link, thanks.
One little headache/question as I try to connect it. Which of these connections do i use for the 240 1ph input, I'm reading it as though it can be any of these three with the earth separate?

View attachment 112169

Yeah I reckon that's what it's trying to say in good queens chinglish!

 

[Bill Edwards]

Yeah I reckon that's what it's trying to say in good queens chinglish!

Cheers.
All connected up and it's not working
I have tried the motor directly to the inverter but simply cannot get it to run, the most im getting is a whine/squeal sound but no movement.
I think it could be the inverter itself which is brand new but the control interface is absolute, complete and utter ****. It's so difficult to set anything, you think you have set one thing then try to select something else and the previous figures seem to follow you round. Maddening.

I think it may not be impossible, I may look on YouTube when I get home for any better instructions but then I think it's time to look for a different motor

 

[daleyd]

Cheers.
All connected up and it's not working
I have tried the motor directly to the inverter but simply cannot get it to run, the most im getting is a whine/squeal sound but no movement.
I think it could be the inverter itself which is brand new but the control interface is absolute, complete and utter ****. It's so difficult to set anything, you think you have set one thing then try to select something else and the previous figures seem to follow you round. Maddening.

I think it may not be impossible, I may look on YouTube when I get home for any better instructions but then I think it's time to look for a different motor

It would be easier with a proper 240v motor for sure, but it certainly "should" be doable even with what you have.

When I did mine I used a Siemens inverter which had decent documentation and a software connection so setting it was a doddle - I've heard people say good things about the Chinese inverters but having suffered a few badly worded manuals on some other stuff I can imagine it could be pretty frustrating trying to work it out!

 

[Bill Edwards]

It would be easier with a proper 240v motor for sure, but it certainly "should" be doable even with what you have.

When I did mine I used a Siemens inverter which had decent documentation and a software connection so setting it was a doddle - I've heard people say good things about the Chinese inverters but having suffered a few badly worded manuals on some other stuff I can imagine it could be pretty frustrating trying to work it out!

From your advice which was explained further in the link you provided it looks like it should work without problems, with a little less torque.
It's just that the manual is probably worth more as a firelighter than a manual. A quick look on YouTube and I'm not the only one to have struggled with this lack of information. It's ended up a late night (had to go to a breakdown) so I'm not spending ages trying to learn it from YouTube tonight but I think I might just be able to find a suitable step by step guide to entering the figures in the inverter and then have another go.
If that fails, it's time to launch it across the room and fit a new motor

 

[Bill Edwards]

Well after scouring YouTube listening to those who've got them programmed I have had another attempt.
It's working! A big thanks to @daleyd for getting me down this road, I haven't had any messing around grafting another motor on and the lathe is all original.

Next I will make use of the fact I can vary the speed and reverse with a suitable switch on the lathe to assist with threading, so I can slow it down near the end and reverse (faster ) without any disengagement of the lead screw. Get the suds pump running with a capacitor and wire the light in then it's fully operational.

 

[daleyd]

Well after scouring YouTube listening to those who've got them programmed I have had another attempt.
It's working! A big thanks to @daleyd for getting me down this road, I haven't had any messing around grafting another motor on and the lathe is all original.

Next I will make use of the fact I can vary the speed and reverse with a suitable switch on the lathe to assist with threading, so I can slow it down near the end and reverse (faster ) without any disengagement of the lead screw. Get the suds pump running with a capacitor and wire the light in then it's fully operational.

Glad to hear it went ok for you Bill, as you already had the inverter it was worth a shot for sure