My router went today on my old DIY table need advise

[Gary-Wiant]

Cut the end off a network cable, to connect to your DeskCNC board. I think you only need 1 or 2 of the wires. (PWM and ground maybe?)

The gentleman I purchased the router from sent me this link.

http://www.cadcamcadcam.com/boardinterfacepwmto0-10vdc.aspx

This company sells Desk CNC so they should be a big help if I have questions setting this up & it appears the cables are included. Unless someone's sees an issue with this card.

[ger21]

That would be a better choice, as it's made to work with your DeskCNC board.

[Gary-Wiant]

My current router table is set up as 120v, with the VID more than likely going to be a 220v so the original owner told me I'd need to convert it over to 220v using the included 220v coil & I'd need to purchase a new 220v power supply.

Can anyone tell me what power supply i need to purchase? Is it just a standard 220v power supply ( if there is such a thing) or would it need to be "Desk CBC compatible?

[ger21]

That would be 220V (or 240V) AC from your outlet.

[Gary-Wiant]

Yes I would bet it is 240v the MTC manual mentions 220v but I guess that's internal huh?

[ger21]

No, It's designed to run on 220V. In most cases, 240V is in the allowable range.

[Gary-Wiant]

Do you or anyone have a recommendation on the powersupply i need?

[ger21]

I'm assuming that it runs directly from your AC power. I've never seen a machine with a 220V power supply.

[Gary-Wiant]

So does my router table will plug into 110v building A/C then the coil and power supply inside the control box convert the machine power to 220v?
Thank you

[ger21]

I have no idea what components you have, so can't really give you an answer.

[A_Camera]

Ok thanks so I read that I need to use an RJ45 connection to attach to speed control board to the Desk CNC. Where do I find the cables or do I have to get one made? I see where the RJ45 connects to the speed control card but I can't see where the other end of the RJ45 connects to the Desk CNC controller card.

I'll have to talk to Bosch Rexroth again. Steve told me the Bosch won't work with PWM.

Thank you

Apart from the panel, it can be controlled by analog inputs 0...20 mA, 4...20 mA, 0...10 V, 0...5 V, 2…10 V or digitally via RS485 (Modbus and Profibus) and pulse input. PWM means normally an analog voltage generated using pulse wide modulated (PWM) signal, which definitely works and have many options in the Bosch, more than most others I have seen. Why do you want to control the frequency via PWM and not via any of the available possibilities?

[A_Camera]

So does my router table will plug into 110v building A/C then the coil and power supply inside the control box convert the machine power to 220v?
Thank you

I don't know any VFD which has a transformer inside. The one I have works with AC voltages between 200V and 240V. In your case you need to connect the VFD to two phases. If you only have a single phase and a neutral it will not work. I suggest you as a local electrician who can check your home AC system. Even if you live in a 110VAC home you may still have two phases in your home, but you have to find and connect so that you can use them in the VFD. Don't start experimenting since you lack the knowledge to do it, contact an electrician who can easily check out your home and connect the proper socket where you can plug in your VFD.

[Gary-Wiant]

I have a good friend that is an engineer and he came over today to help me figure this out.

This is the diagram that he drew up. From what he can see this is what we need to do.

Please let me know if we are missing anything.

[Gary-Wiant]

I assume since no one has said its wrong it is correct, so onto my next question, if I purchase a square 3kw spindle where can I find a clamp? Or is it easier to just purchase one of the 80mm round spindles that come with a clamp.

Thanks

[ger21]

Yes, the drawing is correct, but a bit vague.

Square spindles mount to a flat plate. Just bolt the spindle to a plate from the back, and bolt the plate to your Z axis from the front. The plate should be slightly wider than the spindle.

If a 3Kw spindle is a lot heavier than a 2.2Kw spindle, I'd go with the 2.2Kw.

[Gary-Wiant]

Get thank you. My buddy drew it up to help me understand what 2e were going to do, normally he get over detailed ( he designs nuclear reactors).

I think your right I'm going to stick with the 2.2kw round spindle

Thanks
Gary

[A_Camera]

I have a good friend that is an engineer and he came over today to help me figure this out.

This is the diagram that he drew up. From what he can see this is what we need to do.

Please let me know if we are missing anything.

Yes, you are missing something... you don't seem to read my post. You said earlier that you live in a 120VAC home. You can't feed the VFD with 120VAC and get 220V out of it. You MUST feed it with 220-240VAC. Your engineer friend should have explained that to you. Ask an electrician how you can get 220VAC in your home. Perhaps it's a piece of cake, perhaps it's complicated and expensive, but that is your main question to get answer to. Controlling a VFD via 0-10V is simple, any VFD, including the Rexroth I have been using, can be controlled with that and all you need is a $5 BOB.

Also, you have mentioned 3kW spindle. That requires a lot of current, so even this idea motivates a discussion with an electrician. Perhaps your engineer friend can help you out, but you must get answers to these questions before you commit yourself to buy anything if you want to avoid surprises.

[Arjay]

Yes, you are missing something... you don't seem to read my post. You said earlier that you live in a 120VAC home. You can't feed the VFD with 120VAC and get 220V out of it. You MUST feed it with 220-240VAC. Your engineer friend should have explained that to you. Ask an electrician how you can get 220VAC in your home.

Assuming Gary lives in the U.S. all '120v homes' have 240v power coming into the home. Most circuits for light and recepticles split the 240v into 120v, but some circuits are actual 240v like an electric stove or clothes dryer. An electrician should be easily able to pull a dedicated 240v circuit from the breaker panel.

[Gary-Wiant]

First yes we live in the USA and this is at out sign business, we had a storage building built to house our router since we are mainly a digital sign shop and the dust created from our router would kill our 64" digital printer. Our router building is wired with 120v but to add 220v is as simple as running a wire from the service panel and installing an outlet. My question originally was would I need to rewire my router's control panel to 220v or if I can just plug the VFD into the wall (220v) and run a wire between the Router control panel & the VFD ( which I now know is done using the 0-10 card. I think my biggest issue trying to learn the router stuff is trying to learn the terminology.

[A_Camera]

First yes we live in the USA and this is at out sign business, we had a storage building built to house our router since we are mainly a digital sign shop and the dust created from our router would kill our 64" digital printer. Our router building is wired with 120v but to add 220v is as simple as running a wire from the service panel and installing an outlet. My question originally was would I need to rewire my router's control panel to 220v or if I can just plug the VFD into the wall (220v) and run a wire between the Router control panel & the VFD ( which I now know is done using the 0-10 card. I think my biggest issue trying to learn the router stuff is trying to learn the terminology.

...and the answer is: Yes, you can plug the VFD into the 240VAC if it is made for single phase (European) operation. As I said, the Bosch I am using, and all the others I know about, can handle voltages between 220V and 240V on the VFD input side and generate the necessary 3 phase 220V on the output side. Also, as I said, your Bosch dealer needs to get some of his facts right, because of course the Bosch, just like every other VFD, can be controlled through 0-10V PWM regulated DC voltage.