Always defer to the advice of a professional electrician. If your professional electrician believes the wiring of the VFD is incorrect as per our recommendations, always use the advice of the professional electrician.

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When wiring line voltage to the VFD your diagram shows one line of 240 going to the R terminal and a neutral going to the T terminal. My electrician thinks this may be incorrect and he believes that one leg of 120 should run to the R terminal and the other leg of 120 to either S or T. Is this correct and if so should the second leg/pole be run to S or T? Thank you

Make sure to watch this video that I created to correctly connect a VFD to the Mach3 USB controller. Yes, the 10V terminal on this controller is an input. VFDs typically have a 10V output that can be connected to this terminal.

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The video is here:

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[575] I want to run a SAKO VFD SKI780 by means of this break out board. On https://www.youtube.com/watch?v=P6xxHj6qYSA is mentioned that the 10V terminal on the BOB is an input connection and that it ha to be connected with an external 10V supply source to obtain a 0-10V PWM signal on the AVI terminal of the BOB. I this correct?

The E.Lu.5 Error code on your VFD is related to Low Voltage.

The recommended action is:
- 1. Check whether the input voltage is normal. (the voltage from the wall/breaker to the VFD)
- 2. Check whether there is a sudden change in load.
- 3. Check whether there is any phase missing.

Unfortunately, these three recommended actions will probable require an electrician to test the line going into the VFD.

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I have wired up my 110v VFD and my 2.2Kw spindle and I get an E.Lu.5 code. My wiring is correct and the parameters are set to those for the VFD according to your website I found in a previously answered question from someone here. Any help would be greatly appreciated, thank you!!

The blackFoot uses the same electronics and motors as the blackToe (2'x4') machine. The only parts that change are the gantry horizontal structural parts which may be relatively easy for you to change. We can send you those parts if you are interested in a smaller unit.

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I have a Blackfoot that was purchased in 2017, after the purchase we moved and I haven’t been able to find room for it... would you be interested in buying it back or trading for something smaller. The Blackfoot and computer have never run but I did purchase it assembled. Thanks in advance, scott

Identify the Control Signals: First, determine which control signals from the DB25 interface card are used for spindle speed control. Typically, these are PWM (Pulse Width Modulation) signals or analog voltage signals.

VFD Configuration: Your VFD should be configured to accept the type of control signal your DB25 card provides. This involves setting parameters in the VFD that correspond to the type of input signal it will receive for speed control.

Wiring: Connect the appropriate output pins from the DB25 card to the input terminals on the VFD. This usually involves connecting the PWM or analog output to the corresponding input on the VFD. Make sure to consult the manuals for both your VFD and interface card for specific wiring details.

UCCNC Settings: Configure UCCNC to output the correct type of signal (PWM or analog) that matches your VFD's configuration. This is done through the software's spindle setup section.

Test and Adjust: Run some tests to ensure that the spindle speed is being correctly controlled by UCCNC. You might need to tweak settings in either the VFD or UCCNC for optimal performance.

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I am looking at purchasing your 2.2 kw water cooled spindle. I'm assuming it comes with the VFD. I have a rotary phase converter in my shop. Are these spindles 3 phase? And if so, can I bypass use of the VFD and control the spindle speed by the CAM software instead? Or is the VFD an absolute necessity to use on the spindle?

The E.oA.A is an error that the VFD specifies as an overcurrent during ramp up (or acceleration). In other words, the spindle is trying to accelerate to quickly. The spindle cannot handle the inertia during ramp up and it is trying to draw too much current during this process. The best solution that I have researched is to increase the ramp up (acceleration) time, or slow the acceleration. You will need to check which programming setting you need to change, but there will be setting called acceleration time (or ramp up time). Increase this number in small increments until the error goes away. Then, increase it more so there is a safety factor.

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I have the 1.5kW spindle using the 110V vfd which I bought new and has never run correctly for me. The spindle will not accelerate to any reasonable speed before stopping. When it stops, the vfd display reads "E.oA.A". It does not appear to be wiring or settings, I have checked those many times. What else should I look at to troubleshoot this? Is it DOA?

Your question caused me to make a quick video to understand how the pokeys57CNC controller works with a THC.

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[596] Would you help with the Hook up and the Configuration and whether it is in the Plugin or mach 4 control configuration that needs to be set. I decided to use the ultra fast encoders connector pin #8, 12 and 13 for Arc ok, UP and Down. Please advise what setting to set to make it all work. Thank you very much for your help!

Did you set them up as limit switches or home switches?

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Not sure where do I check that?

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Go to config, then ports and pins, then input signals.

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The limits are labeled x++, x— for example.

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I'm using Mach3. I have 2 limit switches on X, 2 on Y and 1on Z for retracted/home. I can go to diagnostics and see the switches/inputs working. But when I move with jog or gcode they have no effect. Also I can go right past the soft limits. I must have something turn off but I don't know what.

Was this VFD purchased from buildyourcnc.com and if so, what is the model number. If not, please provide the model number and we will attempt to determine the issue.

Also, is this question related to a previous question you asked earlier? If so, please respond to that question with this new information.

Many thanks.

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Yes it was purchased through your website, here is the number is YL600-2S-2K20

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Ok great. I will look into it.

Is this related to the R S T and L1 L2 question that was recently asked?

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No

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It started with that but then once it was wired up it changed to this.

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Ok. Thanks. Please explain how you have the VFD wired to the 220v outlet.

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I have traced the black wire clear from the panel to the R terminal and the white wire to the T terminal and the ground to the E terminal. I have even used a multimeter on the terminals in the VFD while the wires are connected and the power is on, and I get 240V across the R and T terminals and 120 from R to Ground and from T to Ground.

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I still have not seen a response to my previous additional information. It has now been 5 days since then and I still have a non-functioning VFD, what should I do?

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My apologies. I didn’t see your latest wiring clarification response. Please connect the white (neutral) wire to the “S” terminal.

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So, i wired it up and now it does in fact power up. However, now it just gives me an ERR 02 code. What does that mean? the only manual that came with the VFD is all in Chinese. Do you have a book in english? Or a list of error codes?

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I have not seen a response to my previous comment. It has been a while since i have heard from you. What do i do next?

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Sorry about that. The Er 02 code in my manual says that there is an over-current at constant speed, over-current at deceleration or over-crrent at stop.
The recommended actions in the manual says:
1. Check whether the motor has got short circuit and whether the insulation of the output wires is good.
2. Check whether the motor is blocked and whether there is a sudden change of mechanical load.
3. Check whether there is a sudden change in he power supply voltage.
4. Check whether the insulation of the output wires is good and whether the motor has got a short circuit.
5. Extend the ramp down time.
6. Replace it with an inverter (VFD) of larger capacity
7. DE braking is too high. Decrease DC braking (this is only if you have a braking resistor connected).
8. The inverter has failure. Please send it to the factory to repair.

What I have done in the office is to check the resistance between the motor coils. The motor coils should have the same amount of wire winding on each coil. If there is a short circuit in this coil, the the resistance should be lower since there is less wire to travel. You can use a multimeter to check between pin 1 and 2, 1 and 3 and 2 and 3. The resistance should be generally the same.

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I worked threw all the other problems. the controller is now displaying Err 10. WHat does that mean.

Can you provide a complete list of error codes. Or documentation to support this device you sold to me.

id like to be able to integrate this thing into my growing business. i have been pretty unhappy so far with the lack of support. If you have any documentation, can you please send it to me. i cant be the only one having issues. Or even asking for help with these VFDs.

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So I had my electrician hook it up as per your recommendations and nothing happens. Nothing lights up on the screen and nothing turns on. I have verified that the vfd that I was supplied is for single phase power and I have single phase power at my shop. It is a 220v vfd and I am supplying it with 220v. What do I do now? Is this vfd a bad one and do I need a new one?

You will need to look for the parameter that controls the run frequency. The frequency can be controlled bu the panel, external terminals, or the RS485 TX/RX terminals (UART protocol). You will want to change that parameter so it uses the panel. If you are referring to the maximum panel dial frequency is only allowing 200-300 rpm, then look for the parameters to control the frequency.

For 200 RPM:
Hz = 200/60 = 3.33 Hz

For 300 RPM:
Hz = 300/60 = 5 Hz

Conversion to RPM:
If you ever find yourself yearning to reverse-engineer the process, the formula is as follows:

RPM = Hz × 60

Look for values that match somewhere between 3 and 5 in your frequency parameters and replace them with 400 to give you 24,000 RPM max.

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[77] Hello. I’m interested in buying a water cooled spindle and VFD. I have an Avid Pro CNC and would love to control it using Mach 4 but I keep hearing it’s difficult to integrate. Also, is the water pump 120 or 240? I’d love any advice etc. eBay is a web of confusion with all of the options. Thank you.

You have motors and drivers that already work with your machine (unless the drivers are an all-in-one setup and not modular. I would advise you to keep your current electronics and replace the parallel port breakout board with a controller that uses the USB to operate.

Here are two controllers that work under Mach3, or Mach3 or Mach4:
Mach3 USB controller (works under Mach3 only)
https://buildyourcnc.com/item/electronicsAndMotors-electronic-component-breakout-Mach3-USB-Board
Pokeys57CNC full-featured controller works under Mach3 or Mach4:
https://buildyourcnc.com/item/electronicsAndMotors-electronic-component-breakout-Mach4-mach3-USB-ethernet-Board

Alternatively, you can purchase a complete plug-and-play system or have your control system sent over to Buildyourcnc to modify the control system to use one of the above controllers.

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[422] I have a probotix cnc router purchased in 2014, used to run on linyx, now Mach3, WindowsXP, printer port, i would like to be able to use a modern computer usb, do you have something like a plug & play or control box i can wire this into, 2 Y axis, i lost my auto tool length when i switched to XP also, any help appreciated

If your motors are hot to the touch, this is normal. Current is being drawn by the motor coils as the motor moves and as the motor stays at a position. If the motor is not using the current in the coils to move (holding it's position), the energy will be translated as heat (rather than motion, sound or light). Even while moving, some of the energy will be lost as heat. Remember that energy cannot be created nor destroyed.

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I have followed all the "CNC Electronics 1 - 9" videos and I'm using almost the exact same components (motors run and sound good) but the motors are runing very hot in just 15min with no load - have I done something wrong or do steppers run very hot?

Can you provide the model number of your VFD?

Yes, I have the "YL600 - 2S - 2K20"

It just came with a small booklet that is all in Chinese...

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I wired my vfd (2.2kw version) and tried test running the spindle. I configured to your specs on this website, only issue is we got an error code. Err 02, do you know what this is? OR have a list of error codes? Thank you

Yes. The VFD (Variable Frequency Drive) has a large set of parameters that can be modified. This is typically called "programming" the VFD. The parameters can be accessed using the front control panel of the VFD.

Since the VFD is the mechanism that control the allowable current draw from the spindle, there is a parameter that assigns the motor rated current; however, it is probably better to match the rated current of the motor and "up" the circuit breaker current instead. If the current limit is set too low, then there is a possibility that the spindle will cause a current overload error on the VFD and cause the spindle to stop.

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With your 120v drive systems for your 2.2kw spindles, do you do something to limit the output to the spindle so that the current draw doesn't exceed the 80% limitations of a 20a circuit? I have a dedicated circuit for my router and I am considering a spindle upgrade, but I am curious how the configuration matches the math.

If you are using Mach3 do you have your hotkeys set up correctly?

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The office was closed on the weekends and during Dr. Martin Luther King Jr. Holiday.

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I got my Blackfoot 4.3 built. Hooked it to the Redleaf and when testing the axis controls Im able to move the X axis using the Right arrow key, but unable to move it with the left key. I have no control on my Y axis. Tried calling for tech support and recieve voicemail 2 days in a row after a few calls each day.

Using Anti-Freeze in the cooling system with either our spindle or our laser tubes will not have any problems and we recommend using a small amount in locations where temperature is freezing or below.
Although we do not recommend using an entire gallon of anti-freeze rather just a small quantity with tap water will be sufficient.

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All last winter, the temperature was below freezing and sometimes below zero. I used 100% antifreeze for the spindle coolant. Worked great !! All the spindle needs is any type of coolant flowing through it to take the heat away. I use three gallons of antifreeze in a tub with a fish-tank pump to push the antifreeze through. 100% antifreeze works great in cold or hot winter.

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Excellent tip. Thank you for this correction. So it is OK to use antifreeze solely as a cooling method.

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I was wondering what you recommend to use to cool your spindle when continuously exposed to freezing temperature. Can I use winter windshield cleaner (cheap) or do I have to use antifreeze engine coolant or something else? water just sounds like a really bad idea. I live in Canada Eh!

There is some variation in the outward appearance of laser power supplies due to sourcing through different vendors. However, the basic wiring requirements are the same in each case. For the unit with integrated laser controller, follow the diagram found here: https://buildyourcnc.com/blackToothLaserCutterAndEngraver.aspx#prettyPhoto/0/. The terminals on the signal side will have a 6 connection terminal block -- these are the ones labeled 5V, IN, G, P (or WP), L (or TTL-L), and H (or TTL-H). The High Power side will have 3 inputs for AC power, one high voltage lead, and one return line. Connect these as shown in the diagram as well: the return line goes on the "front" (beam exit end) terminal of the laser tube, the high voltage lead goes to the "back" terminal of the tube, the FG terminal (or G) receives the earth ground wire of the AC power cable, and the two AC terminals receive the line and neutral wires of the AC power cable (it doesn't matter in this case which wire goes to which terminal).

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I purchased the blackTooth Laser Engraver with integrated Laser Control Unit and have been following your instructions. I noticed that the laser tube power supply is different that what is shown in your instructions. Do you have any better wiring guides that I can follow for the version that I received?

This would totally work for that application. This cable carrier is used for any object that needs to move and carries some electrical or tubing within it. This cable carrier is great for cable management where you want to make sure the wires and tubes are in a position that you set, not where the wires and tubing want to go.

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[311] I am looking to use this type of thing with a pipe for theater. Where the pipe can be lowered and it would have electrical and signal cable inside. Is this good for that or should I look at something else?

Can you provide the model number of your VFD?

Yes, I have the "YL600 - 2S - 2K20"

It just came with a small booklet that is all in Chinese...

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I WIRED MY VFD (2.2KW VERSION) AND TRIED TEST RUNNING THE SPINDLE. CONFIGURED TO YOUR SPECS ON THIS WEBSITE, ONLY ISSUE IS WE GOT AN ERROR CODE. ERR 02, DO YOU KNOW WHAT IS? OR HAVE A LIST OF CODES? THANK