Does anyone have a Chinese CNC spindle like this? I just got one and I am trying to figure it all out. I got it running, but I am trying to figure out what that jumper wire is supposed to do. Am I supposed to put a switch there so I can turn the spindle on, and off? I mean what is it for?
Yes, the jumper is for an On/Off switch. They have used a jumper to make it always on, I would remove that and replace it with a rocker switch that can handle 120V @ 10A
@funinthefalls
Why did they do it that way? Couldn’t I have just put a switch in series with the motor? I’m tempted to take the case apart so I can trace the circuit and see just what kind of nonsense they’ve done. I hear these PSUs blow up pretty quickly anyways. I’m not going to get any kind of warranty with this hardware either.
I’ve tried to measure the output voltage but so far my DMMs won’t give me a value. I guess it is supposed to be DC, that’s what the motor says it is. But it just won’t register on a meter’s DC range.
I think I might have to hook it up to my scope to see what is going on. These Chinese puzzles never fail to confound me.
@charlie_wallace
I’m telling ya, I need to take Chinese as a second language. They don’t hesitate putting those hieroglyphs on their products. But then I’m in the dark about stuff. Until I can see the circuit I won’t know what they’re switching. Right now I just have a DPST switch on the power to turn it on, and off. Because they wanted an additional $8 for 120VAC So I got the 220V one and I’m running it on 220V. But 220V is hot both legs here, so I have to turn them both on, and off.
The jumper is on a safety interlock circuit. So you can rig multiple sensors/switches in series to make sure certain conditions are met. I use something similar on my Laser cutter, there is a door interlock switch (to make sure door is closed on work area, water flow sensor (to make sure cooling pump is on), a temp sensor (to make sure cooling water is not overheating) and finally an enable switch (to make sure you really want the laser to be able to fire). This logic can be applied to the spindle in a similar fashion. Hope this explains it a little better.
@charlie_wallace The circuit is an interlock circuit as I have explained above. To switch the 220V power on or off, place the switch on the 220V input line (both legs). The interlock circuit enable/disables output to the spindle, it does not switch the PSU power on/off.
@Paul_Frederick if you have an android (or maybe iphone) grab google translate, run it select chinese -> english , install the language pack, click the camera icon point it at the text and capture it. might have to zoom the picture a bit first. @funinthefalls didn’t say it did, i said its chinese for switch
@funinthefalls
Thanks. I think I see what you mean. I am still going to have to see how they physically implemented it, to decide if it is useful for me to use at all. Thinking about it now I’m leaning towards no.
I have this, I use a relay there to turn the router on and off via software. My controller has an Auto/Manual switch.
In Auto the software switches on the Router at the beginning of the run the switches it off at the end. or manual to run when needed.
@Alfred_Byrne
That seems like a good solution. I am just wondering what the actual mechanism of control is here? Like is that terminal simply a break in the output line, or is it an enable line to the controller IC? I might be able to tell just ringing it out. Then again I’d like to trace the circuit, to make doubly sure. Bridging it with an ammeter would be telling too. Higher current would indicate it is just a supply line break, no reading would be an enable line. Knowing that would dictate how I hooked it up. If it is just an enable line then I can dispense with a relay and do it with just electronics.
I’m still plumbing the electric over here, so I haven’t investigated further yet. I opted for the international version, because they wanted an additional $8 for the 120V model. I run one of my table saws on 240V, so I am just running a tap out of that. I thought $8 for 2 caps, and 2 diodes was kind of a rip off. So I felt they were basically trying to beat me down for another $8.
I’m not sure how I feel about that decision now. Because it did cause me extra work. Once I’m done I won’t give it a second thought though. I got the hot wire coming out of my saw’s controller box already. I punched a hole in it, put a connector in there, yadda yadda. I still haven’t electrocuted myself yet either. So that’s always a plus. I had the presence of mind to unplug the saw before modifying it.
@Paul_Frederick $8 bucks huh. You wouldn’t be you if you didn’t do it the hard way… lol I of course say that as a fellow hill climber. I’ll be interested to see how well it works. How long did shipping take?
@Mat_Helm
Not bad really. I ordered it on the 16th of November. I ordered another TB6600 drive at the same time too. It has not arrived yet. Which is a good thing, because I just botched my Z axis rebuild. I almost had it. But it was a little too tight, so I cut it again, and then it was too loose. Now I have to cut a new male. I almost had it. I’ll take the beat one and toss it into my melt box. I have a couple more blocks to give it more tries with. http://i.imgur.com/ZojKewY.jpg I don’t want to have to use a gib plate either. I just want it the right fit. Which does make cutting it a bit tricky.
@marmil
that’s the 64 dollar question. I am going to have to crack that PSU open to see what’s going on in there. When it blows up I’m not going to get it warranted anyways.
Hi Paul. You should measure resistance across the jumper terminals without the jumper installed. If it measures close to 1 ohm then it might be a power control circuit. I have seen this feature on some power supplies before and it is meant to function as an “enable” signal. The purpose of adding enable to a power supply is to ensure its output is completely deenergized when not in use. If the psu was always on and something whent wrong, then you could damage or burn something. You should look at your cnc controller and look for a spindle enable output. If there is, try controlling this using a relay driven by your cnc controller.
