Not sure if the forum will accept the manuals and programme or not but will give it a go.
I have zipped the macro manual, a custom macro manual, the PLC manual (for lathe) and the PLC programme.
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Not sure if the forum will accept the manuals and programme or not but will give it a go.
I have zipped the macro manual, a custom macro manual, the PLC manual (for lathe) and the PLC programme.
Many thanks - I was about to ask for the same thing!
Thanks for sharing.
I'm currently running my complete lathe via a 7.5kw boost inverter, albeit still with the motor from my old rotary phase converter running to provide some base load, and a sine wave filter to ensure no transients make it to the lathe.Quote:
Originally Posted by Chaz
So something like the Ecogoo 7.5KW directly into a lathe? What lathe?Quote:
Originally Posted by m_c
This lathe - http://www.mycncuk.com/threads/13970-New-CNC-lathe-dayQuote:
Originally Posted by Chaz
My current set up is-
7.5KW Boost VF -> sine wave filter -> idler motor (the setup may work fine without it, but it does provide a bit surge/buffer capacity) -> 3ph distribution.
For sine wave filters - https://www.controlpanelproducts.co....o-1200A-CNW933
Due to the workshop being fed via a quite sensitive RCD, I do also have a 7.5KVA isolating transformer feeding the VFD, but you shouldn't need that.
With that setup, the lathe runs fine, although it does dim the lights if I reverse the spindle...
Just a heads up, for a tool change macro this is a very handy thing :)
So SZGH are saying that this spindle setup wont work behind an invertor / filter. Of course, it might, but not surprised as without testing / knowing, they put their hardware and reliability at risk.
So, anyone want to buy a 7.5KW 380 3 Phase Driver, Spindle Servo Motor, cables and braking resistor? The cost to me was $USD 990, plus a bit of tax and sadly the shipment was expensive due to the weight of the motor (60 ish KG). Let me know if interested. Ill possibly stick it up for sale on a few other places too.
Shame it is not bigger but sadly too small for me.
Would a rotary not be a cheaper solution? Not sure what input power you need for that drive though, so possibly not.
Not sure, but I expect pretty substantial.Quote:
Originally Posted by Hood
I would try running it off my 220V to 380V invertor but its not worth damaging it, so too risky.
A rotary would be my choice but just having a quick look they are quite steep in price nowadays. Years ago I had a 5hp static and fitted an idler motor to it and it worked great, nice clean (proper) 3 phase.
I will ask around and see if anyone needs a spindle motor/drive that size but I think most of the people I know, like me, require 12kw or more.
Thanks, appreciated.Quote:
Originally Posted by Hood
Double Post
Surely it's only the drive you require not the motor.? this wouldn't cost a fortune to replace. What is the model number of the drive, so I can check it against mine which does supposedly work with single-phase, though I haven't tried it, and will use 3 phase anyway?Quote:
Originally Posted by Chaz
Thanks.Quote:
Originally Posted by JAZZCNC
I thought so too, so queried with them, reckon no go as the motor is wired for 380V. I did notice when I connected it they only expose 3 wires, so cant change from high to low voltage.
The drive is SZGH-S4T7P5, the motor is SZGH10-3-48-7.5/11-4-1500.
Attachment 29505
Thanks
Would you get a single phase drive for a motor that size?
For servo drives 3Kw seems to be about the max for single phase and I would have thought spindle drives would be the same.
Good question. I hope so, otherwise Ill need to make a plan here.Quote:
Originally Posted by Hood
I run my 6.8 KW 24K HSD spindle on single phase with an inverter. Its a 380V version but I know you can specify 220V at that power.
When I asked SZGH Mike told me the drive I have could be run on a single-phase supply but at a de-rated motor output.(approx 20%) Not that it matters because I will be running it on 3 phase anyway.Quote:
Originally Posted by Hood
And that was my understanding too. What I did not pick up was that the version I ordered is 380V only. Ive had words with them, I intend to order more stuff - then they quoted on Friday for 220V 3 Phase despite me reminding them I only have single phase.Quote:
Originally Posted by JAZZCNC
They suggested they could supply one of the items at cost as a 'sorry' for the issue but then tell me how much more complicated / expensive the 220V version is, so perhaps no discount after all. Lets see, Ill probably hear from Susie in the morning.
You may be lucky, i sent an email to Mike and received this reply:Quote:
Originally Posted by Chaz
Sorry for late replay because we are on Holiday this term as Chinese New Year(6th,February,2021-18th,February,2021).Happy Chinese New Year to you and your family!!! We will feedback to you soon after holiday! Thank you very much for your understand!
Then later he replied, work that one out.
Ah yes, in which case nothing will be happening. Forgot about that.Quote:
Originally Posted by Colin Barron
You'd probably want to wait anyway because shipping is through the roof at the minute.Quote:
Originally Posted by Chaz
Thanks. Is that due to people trying to get stuff before the holidays?Quote:
Originally Posted by JAZZCNC
IMO it's mostly because of the greedy profiteering freight company's. But the official line I keep getting is that for Airfreight it's covid and difficulty at terminals. For Sea freight, it's a lack of ships due to them being delayed in EU and various parts of the world again blaming Covid. Container prices have gone up by 500% and 600% depending on were coming from. Typical container prices were $2000 now it's $10 -$12,000 with delays anywhere up to 4-6wks and that's on top of usual 8-10wks shipping times.!Quote:
Originally Posted by Chaz
No one is sending anything by sea freight at the moment because of the price, so all major shippers are sitting on the fence waiting for prices to drop after the Chinese new year, which will then cause a shortage of available space on the boats, which then, in turn, will keep the prices high IMO.!!
It's a nightmare getting parts at the moment.!
Argh, not ideal. Suppose I can spend time getting the axis sorted and then hopefully get the turret stuff working.
Air freight capacity is greatly reduced due to a lack of passenger flights. There are passenger planes flying solely for freight, and even Airbus designed a system for securing cargo in passenger seat.
Sea freight has experienced a bit of a perfect storm. People looking to replace air freight due to the increased prices there, increase in orders due to everybody being stuck at home, UK businesses trying to stockpile before Brexit kicked in, backlogs at ports, and just general delays has driven demand well above capacity, along with prices.
I'm guessing it's going to be at least another couple months before things return to more normal.
On the upside (slightly) we are getting $1.37 to the pound, it was $1.30 at the start of November.Quote:
Originally Posted by m_c
One thing I might try is to use the old DC motor. I think its mean to be OK, there is a drive that I have which might belong to it (got 2 machines at the same time) but might try and power from an invertor and see, at worst I damage the drive which I wasnt going to use anyways. If it works, then it might be worth using and I can change it one day when I have 3 phase or a 220V Single Phase system.
So getting back to this. I now have movement in both axis and now onto the Tool Turret logic.
Does anyone have a copy of the 'U Disk' application that is used for talking to and from the controller? I cant find the original USB stick and whilst I have followed the instructions, I cant seem to get access to the PLC files that need to be edited (or Im doing it wrong). The only root folder available to me us /nc. I cant go any higher through the normal screen and Ive entered the user password.
Thanks
try 666666Quote:
Originally Posted by Chaz
Thanks. Managed to get it working. The manual isnt great and HoodScotland has been helping. The pass is 111111.
Also on the password screen, if the #1 password is enabled then to disable use 111111, I think to edit PLC you need to disable the password .
Edit: Just spotted your post. . . .Lol
Thanks to help from Hood Scotland, M_C, and others. I now have a tool changing working machine but cant drive the spindle as yet.
Here its moving with code generated from Fusion 360, just a demo part.
https://youtu.be/s9KWipZfOKg
And some tool changing.
https://youtu.be/yAK2E5L320w
Need to get the spindle running, no cutting till then. Got to tidy wiring etc and still need to wire in the chuck and a bunch of other stuff. Ive ordered a choke which might help me run the spindle from a VFD.
Next challenge, spindle drive is powered, even got as far as a self phase test (motor runs to see phasing / direction) but I keep getting an Error 06 (motor over temp). Ive tried everything, I cant see how to fix this. I have a plug going from the motor to the drive that carries the encoder feedback and potentially 2 wires for a thermistor (which measures 0 Ohms). I tried with a dummy 100 Ohm load, incase this isnt right but still nothing.
Ive also tried to tell the drive to ignore motor temp parameter P90_03 allows for masking but doesnt matter what I try, Nada. Any ideas? Ive asked SZGH but will be an overnight wait, if they understand the question, sometimes its fixed next day, otherwise it takes a few attempts.
Thanks.
Have you got a manual for the drive?
I'm not sure what you mean by this.Quote:
potentially 2 wires for a thermistor (which measures 0 Ohms). I tried with a dummy 100 Ohm load
Do you mean each wire individually measures 0 ohms but not connected, or they're looped together so both wires appear as 0 ohms at the drive?
If I measure their 'thermistor' - assuming that's what it is. I get 0 Ohm across it. So it might not be a thermistor but rather a switch that goes open circuit when it gets too hot?Quote:
Originally Posted by m_c
I'm having a problem validating that the wires from the thermistor actually go to the drive. In the manual the one connector that it might go to has the encoder feedback, nothing shown for anything related to the motor.
This is a newer version of the AC Servo system manual - https://www.machsupport.com/forum/in...0;attach=48294
My paper copy is v 2.5 and is more accurate but its very similar.
OK, in the manual (page 10) there is the first reference I can see to motor over temp protection. CN2 connector T1 / 0V under extended interface. Assuming Stitch means pin, pin 9 and 13. So 13 is Ground, 9 is T1. Mine doesnt use this CN2, it has a barrel connector but at least there is a reference to it now.
This manual has different parameters which mine doesnt have. For example, it has E63, Motor overheating protection. I dont seem to have anything like this, mine are Parameter 00 to 91, nothing like this, so this must apply to newer / different servos.
The motor probably just has a temperature switch that goes open circuit when it gets hot enough.
I wonder if the drive is looking for a thermistor, in which case try leaving the wires disconnected.
NTC thermistors are more common (resistance decreases as temperature increases), so I'd guess if that's what the drive is looking for, leaving it open circuit is less likely to trigger a fault. Failing that, try a 2-3k resistor.