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Thorja2009,
thank you so much for all that most welcome documentation.
These large chunks of iron could easily outlive the ability to preserve the electronics driving them.
With this documentation...

My maintenance manual has pages 7-12 and 7-13 missing.
Please could someone check their manual and see if these pages exist and if so post them.

For reference page 7-11 ends at 7.3.3 (X axis...

zhang,
that does not answer my question to you which is:

Zhang, please say on this forum exactly what you mean by 'special support'.

I want to see real evidence that this setup can do serious work. Any positive comments from Chris should be read in conjunction with his initial enthusiasm for the defective setup.

Zhang, please...

I, too, would like to know what Zhang intends regarding all the defective controllers he has supplied.

Have you checked the spindle motor thermal overload?

from memory since I am nowhere near the machine.
1. not sure
2. requires 440V 3ph with 20A breakers, 10A breakers will trip.
3. 30
4. about 1500kg
5. no drawbar, manual using QC30 tool holders ...

I would suggest miraculous as opposed to lucky.

So please tell what feed and speed and material you are cutting that causes you to be so impressed.

This issue of the total inability of the 'controller' to maintain some semblance of speed control under varying load is more than 8 months old.

Obviously Sangmutan/Zhang were well aware that this...

'sensored'. Is this a new word?.

'Censored' is what this excuse for a motor control system should be.

These motors have revolution feedback only, there is no way they have any timing sense.
...

I disagree, this controller lacks PID control at any speed. This is what I posted last November. I am not aware of any change. Zhang did not answer my email request for an update.

I bought one of...

This issue has been drifting along for several months and is taking on the look of a scam by Zhang and Sangmutan.

There is no justification for marketing a product with such obvious performance...

Has the issue with these defective Sangmutan motor controllers been resolved yet?

A1,A2 is the main motor. K1,K2 is the thermal overload. T1,T2 is the brushed tacho-generator. The Heidenhain analog position encoder houses the disc - looks like phosphor bronze or berrylium copper...

Good stuff, I too will await news of the replacement controller board with baited breath.

Originally I connected by Interact1 mk2 to 440v 3 phase with 10A circuit breakers. They tripped regularly at switch on presumably due to inrush to the transformers. Now it is connected via 20...

Where did Zhang promise a replacement controller to everyone who bought this kit? He hasn't offered me one.

Besides the controller lack of PID, there are a couple of other potential issues with...

My Interact has a Kennametal QC collet holder spindle without a drawbar. I suppose they were all like this.
The ER32 collet holder is similar to the BT style but has both sides of the drive flange...

I was thinking about this and it occurs to me that a treadmill motor and controller might be a better solution, certainly in terms of load recovery. I guess that conversion is an old story by now.
...

An induction motor runs at a full load slip speed of about 3-5%, any further load and it will stall. A BLDC motor has no inherent speed or torque control, it is done by the controller. The Sangmutan...

You jest I hope. So you have never used a mains powered bench drill, mill, or lathe powered by an induction motor:)

You would need to define your quality question more specifically before I would volunteer an answer.
Feedback appears to be 3 hall effect sensors to give speed only, there is no position encoder. ...

I bought one of these ‘2200W’ Sangmutan motors together with the controller and display.
As with other servo motors I would expect it to spin up to the set rpm and stay more or less at that speed....

Brian,
Thanks for the Mesa suggestion, any idea who knows more about the controller card?
My Z+ command from the joystick doesn’t work but the TNC is getting the 24vdc input form the microswitch...

I bought an Interact 1 mk2 with a TNC150 a few weeks ago. Declared issues were that neither the spindle nor hand wheel worked.
The ‘current option plan’ is to find out what is functional and then...