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?

Please use these settings for our 110V VFD's:

Change PD001 to '0' or '1' (source of run commands/one will be computer controlled)
Change PD003 to 300 (main frequency - Hz)
Change PD004 to 300 (base frequency - Hz)
Change PD005 to 400 (max operating frequency - Hz)
Change PD006 to 2.5 (intermediate frequency - Hz)
Change PD008 to 110 (max voltage - V)
Change PD009 to 15 (intermediate voltage - V)
Change PD010 to 8 (minimum voltage - V)
Change PD011 to 100 (frequency lower limit - Hz)
Change PD142 to 7 (rated motor current - Amps)
Change PD143 to 2 (motor pole number)
Change PD144 to 3000 (rated motor revolution)
For further info please refer to (https://www.buildyourcnc.com/item/spindle-inverter-2!2kw-spindle-novfd#prettyPhoto/9/) for wiring and other specifications.
Please check you wiring to be correct as the illustrated photo on the diagram.

Additional Information:
PD003 should be set to the base operating freq. stamped on your motor/spindle typically 400hz

Additional Information:

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How should I configure the 110v vfd with 2.2kw spindle? When I use the configuration on the spindle page, I get an over-current error (e.oc.a).

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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I HAVE A 2.2KW WATER COOLED SPINDLE WITH YL620-H VFD. THE VFD USES P#-## PROGRAM FORMAT. BELIEVE ALL CORRECT SETTINGS SETUP BUT WHEN TURN UNIT ON, IT SPINS AT ABOUT 200-300 RPM REGARDLESS OF WHAT FREQUENCY CHOOSE. DO YOU PARAMETERS IN THIS FORMAT FOR UNIT? THANK YOUR HELP. HUIBERT MEES

BYCNC Response:
The book build was intended to be 20 inches x 40 inches. Larger machines were designed after the book build was introduced so customers would have the option to go bigger than what the book offered. Check out our larger machines on the website as the machines sizes range from 1 foot x 3 feet all the way up to 6 feet x 12+ feet.

User Response:
I'm not wanting to spend $3,000+ on a machine, I want to build one that will do a 4x8 sheet of wood. Will the plans in the book scale up?

BYCNC Response:
It is possible to scale the book build up, but the rigidity of the gantry would be questionable at that span, even if the height of the gantry structure were to be increased. The gantry design would need to be modified to become a box shape rather than a flat configuration. The kits on the site were design for those wanting a larger machine.

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I bought your book and was hopeing it had plans or dimentions on how to build a cnc to hold a 4x8 sheet of ply. Will the CNC in the book scale up?

This will depend on the VFD you have to identify the correct terminal. The terminal on the VFD will be labeled AI1 typically (Analog Input #1). You will also need to make sure to complete the PWM circuit using the GND terminal on the VFD.

Additional Information:
I have wired my 0-10V signal to the AI1 and GND terminals as suggested. I have also set the PD-01 and PD-02 settings to 1. Still nothing. Is there something else that I am missing?

Additional Information:
Thanks for the information. Can you let me know the model of the VFD that you have?

Additional Information:
VFD Model # YL600-2S-2K20

Additional Information:
Thanks. I will check our resources and documentation to see if there is another programming setting that needs to be changed.

Additional Information:
Does your VFD have a VI terminal?

Additional Information:
No, it does not. The terminals for this VFD are as follows (seperated by dashes "-").

10V-AI1-AO2-PLC-DI5-DI3-DI1-COM
AI2-GND-AO1-DI6-DI4-DI2-FM-24V

Additional Information:
Do you have a PD070 parameter?

PD070 is the main Analog Input parameter.

The options for that parameter is:
0: 0-10V
1: 0-5V
2: 0-20mA
3: 4-20mA
4: 0-10V (4-20mA Stacked)
5: XIA
6: (VI+XIA)/2
7: (3VA+XIA)/4
8: (XIA_XIB)/2
9: Max (XIA, XIB)
10: Min (XIA, XIB)


Additional Information:
There is a PD-00 thru PD-09. PD-07 is currently set to 0.

Additional Information:
It appears that the manual I’m using “Titled YL600” is not the same as your unit. I will check our manuals and find the one that has only PD-00 to PD-09.

Additional Information:
For that VFD, the parameters are P0. The 0 may look like a D on the display.

The parameters that need to be changed for the AI1 to work (Brackets [] around the correct selection):

P0-01: First Motor Control Mode
- 0: Sensorless Vector Control
- 1: Flux Vector Control (FVC)
- [2]: V/F Control

P0-02: Options of Command Source
- 0: Operation Panel Command Channel (LED will be off)
- [1]: Terminal Command Channel (LED will be on)
- 2: Communication Command Channel (LED will flicker)

P0-03: Options of Principle Frequency Source X
- 0: Digital Setting (Preset Frequency P0-08, UP/DOWN modifiable, no power-down memory)
- 1: Digital Setting (Preset Frequency P0-08, UP/DOWN modifiable, with power-down memory)
- [2]: AI1
- 3: AI2
- 4: AI3
- 5: Pulse Setting (DI5)
- 6: Multi Speed Instruction
- 7: Simple PLC
- 8: PID (Proportional Integral Derivative Control)
- 9: Communication Given

P0-11: Upper Limit Frequency Source
- 0: P0-12 (Make sure the P0-12 parameter has the correct max frequency if used)
- [1]: AI1
- 2: AI2
- 3: AI3
- 4: Pulse Setting
- 5: Communication Given

P0-27: Command Source Bundle with Frequency Sources
Single Digit: Options of Operation Panel Command Bundle with Frequency Sources
- 0: No Bundling
- 1: Digital Setting Frequency
- [2]: AI1
- 3: AI2
- 4: AI3
- 5: Pulse Setting (DI5)
- 6: Multi Speed Instruction
- 7: Simple PLC
- 8: PID
- 9: Communication Given
Double Digit: Options of Terminal Command Bundle with Frequency Sources
Hundred Place: Options of Communication Command Bundle with Frequency Sources
Kilobit: Options of Automatic Operation Bundle with Frequency Sources

P2-09: Upper Limit Source of Lower Torque Under Speed Control Mode
- 0: Function Code P2-10 Setting
- [1]: AI1
- 2: AI2
- 3: AI3
- 4: Pulse Setting
- 5: Communication Given
- 6: MIN (Al1, Al2)
- 7: MAX (Al1, Al2)
- Maximum range for options 1-7, accords with P2-10

If you elect to use a different AI#, then configure the parameters (P0-03, P0-11, P0-27 and P2-09) accordingly.

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I'VE BUFFERED A PWM SIGNAL TO 0-10V ANALOG AND I WOULD LIKE USE THAT RUN YOUR 110V 2.2KW SPINDLE VFD. COULD YOU PLEASE DETAIL THE CORRECT WIRING VFD SETTINGS GET WORKING?

Yes, you will need a sensor to determine the speed of the rotation. For instance, you can use a hall effect sensor and put a magnet on the shaft of rotation. By installing the hall effect sensor near the shaft that contains the magnet, you can use this to determine the RPM of the axis and reflect this value in Mach3 using an input in your controller and setting that input in the index line item of the Mach3 input signals dialog box.

Here is a great video that shows the circuit and process:

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You can set the Index input with Mach3 Turn and check that the Index is lit on the screen, but it is not reflected in the rotation speed. Is there any way?

BYCNC Response:
The book build was intended to be 20 inches x 40 inches. Larger machines were designed after the book build was introduced so customers would have the option to go bigger than what the book offered. Check out our larger machines on the website as the machines sizes range from 1 foot x 3 feet all the way up to 6 feet x 12+ feet.

User Response:
I'm not wanting to spend $3,000+ on a machine, I want to build one that will do a 4x8 sheet of wood. Will the plans in the book scale up?

BYCNC Response:
It is possible to scale the book build up, but the rigidity of the gantry would be questionable at that span, even if the height of the gantry structure were to be increased. The gantry design would need to be modified to become a box shape rather than a flat configuration. The kits on the site were design for those wanting a larger machine.

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I BOUGHT YOUR BOOK AND WAS HOPEING IT HAD PLANS OR DIMENTIONS ON HOW TO BUILD A CNC HOLD 4X8 SHEET OF PLY. WILL THE IN SCALE UP?

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.

Click the link to add information to this solution:
I have a 2.2kw water cooled spindle with a YL620-H VFD. The VFD uses the P#-## program format. I believe I have all the correct settings setup but when I turn the unit on, it spins at about 200-300 RPM regardless of what frequency I choose. Do you have the correct program parameters in this format for this unit? Thank you for your help. Huibert Mees

The 2.2kW spindle will have the same amount of torque and strength using either the 110V or the 220V inverter. Nothing will significantly change in either application since the 110V inverter has a small step up transformer which will increase the voltage from 110V to 220V to run the spindle efficiently.

Additional Information:
I'd like confirmation on this -- isn't there a cost in efficiency to having the 110v step up to 220v?

Additional Information:
Thank you so very much for explaining this!!! I truly appreciate your help! Tricia

Additional Information:
Thank you so very much for explaining this!!! I truly appreciate your help! Tricia

Additional Information:
Thank you so very much for explaining this!!! I truly appreciate your help! Tricia

Additional Information:
Thank you so very much for explaining this!!! I truly appreciate your help! Tricia

Additional Information:
Thank you so very much for explaining this!!! I truly appreciate your help! Tricia

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Good morning, I would like to know if the strength of the 2.2kw spindle is weaker when using the 110V version of the VFD. Does it have the same power as the 220V version VFD?

This video should provide enough guidance to understand the PWM signal on the Mach3 USB controller:

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[575] Hello, I'm wondering if you can provide advice how to wire this USB board where for spindle I would like to use chinese servo motor and driver (TD3) - speed control mode. Especially how to connect - AVI, ACM and 10V (24V is clear). I am still not sure how to power on and off spindle itself. Thank you in advance. Vaclav

This will depend on the VFD you have to identify the correct terminal. The terminal on the VFD will be labeled AI1 typically (Analog Input #1). You will also need to make sure to complete the PWM circuit using the GND terminal on the VFD.

Additional Information:
I have wired my 0-10V signal to the AI1 and GND terminals as suggested. I have also set the PD-01 and PD-02 settings to 1. Still nothing. Is there something else that I am missing?

Additional Information:
Thanks for the information. Can you let me know the model of the VFD that you have?

Additional Information:
VFD Model # YL600-2S-2K20

Additional Information:
Thanks. I will check our resources and documentation to see if there is another programming setting that needs to be changed.

Additional Information:
Does your VFD have a VI terminal?

Additional Information:
No, it does not. The terminals for this VFD are as follows (seperated by dashes "-").

10V-AI1-AO2-PLC-DI5-DI3-DI1-COM
AI2-GND-AO1-DI6-DI4-DI2-FM-24V

Additional Information:
Do you have a PD070 parameter?

PD070 is the main Analog Input parameter.

The options for that parameter is:
0: 0-10V
1: 0-5V
2: 0-20mA
3: 4-20mA
4: 0-10V (4-20mA Stacked)
5: XIA
6: (VI+XIA)/2
7: (3VA+XIA)/4
8: (XIA_XIB)/2
9: Max (XIA, XIB)
10: Min (XIA, XIB)


Additional Information:
There is a PD-00 thru PD-09. PD-07 is currently set to 0.

Additional Information:
It appears that the manual I’m using “Titled YL600” is not the same as your unit. I will check our manuals and find the one that has only PD-00 to PD-09.

Additional Information:
For that VFD, the parameters are P0. The 0 may look like a D on the display.

The parameters that need to be changed for the AI1 to work (Brackets [] around the correct selection):

P0-01: First Motor Control Mode
- 0: Sensorless Vector Control
- 1: Flux Vector Control (FVC)
- [2]: V/F Control

P0-02: Options of Command Source
- 0: Operation Panel Command Channel (LED will be off)
- [1]: Terminal Command Channel (LED will be on)
- 2: Communication Command Channel (LED will flicker)

P0-03: Options of Principle Frequency Source X
- 0: Digital Setting (Preset Frequency P0-08, UP/DOWN modifiable, no power-down memory)
- 1: Digital Setting (Preset Frequency P0-08, UP/DOWN modifiable, with power-down memory)
- [2]: AI1
- 3: AI2
- 4: AI3
- 5: Pulse Setting (DI5)
- 6: Multi Speed Instruction
- 7: Simple PLC
- 8: PID (Proportional Integral Derivative Control)
- 9: Communication Given

P0-11: Upper Limit Frequency Source
- 0: P0-12 (Make sure the P0-12 parameter has the correct max frequency if used)
- [1]: AI1
- 2: AI2
- 3: AI3
- 4: Pulse Setting
- 5: Communication Given

P0-27: Command Source Bundle with Frequency Sources
Single Digit: Options of Operation Panel Command Bundle with Frequency Sources
- 0: No Bundling
- 1: Digital Setting Frequency
- [2]: AI1
- 3: AI2
- 4: AI3
- 5: Pulse Setting (DI5)
- 6: Multi Speed Instruction
- 7: Simple PLC
- 8: PID
- 9: Communication Given
Double Digit: Options of Terminal Command Bundle with Frequency Sources
Hundred Place: Options of Communication Command Bundle with Frequency Sources
Kilobit: Options of Automatic Operation Bundle with Frequency Sources

P2-09: Upper Limit Source of Lower Torque Under Speed Control Mode
- 0: Function Code P2-10 Setting
- [1]: AI1
- 2: AI2
- 3: AI3
- 4: Pulse Setting
- 5: Communication Given
- 6: MIN (Al1, Al2)
- 7: MAX (Al1, Al2)
- Maximum range for options 1-7, accords with P2-10

If you elect to use a different AI#, then configure the parameters (P0-03, P0-11, P0-27 and P2-09) accordingly.

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I've buffered a PWM signal to a 0-10V analog signal and I would like to use that signal to run your 110V 2.2kW spindle and VFD. Could you please detail the correct wiring and VFD settings to get that working?

The squeal you hear from your spindle running at low RPM is probably not associated with bad bearings (I guess it depends on the sound). All of our spindles running at low RPM has a distinct sound, probably caused by the coils and the magnets.

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Hello, I have a chinese 2.2KW spindle that is nearly new purchased with a CNC I bought while in china, I have noticed at lower RPM there is a distinct squeal. Does this indicate bad bearings?

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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HEY ! I HAVE PURCHASED A VFD WITH MATCHING SPINDLE 1.5KW AND CONTROL PROGRAM UCCNC. MY INTERFACE CARD IS DB25, THE QUESTION HOW DO CONNECT TO DB25 SO THAT CAN SPEED UCCNC? SINCERELY "CNC BEGINNERS"

Depending if the spindle can work with this specific VFD, it might be possible. However we would not like to risk you working unit, with a possible match so we would like more details on your specific model and any information available on the spindle itself.

Response
The only info on the spindle is 2.2KW 400HZ 220V. Made by Zhong Hua Jiang.

Was originally on a Delta C200 vfd. That is 220 single phase.

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I PURCHASED A VFD AND SPINDLE FROM FRIEND, HIS SET UP IS 220. DON'T HAVE 220 IN MY SHOP. QUESTION CAN USE YOUR 110 WITH THIS SPINDLE??

It is likely that if your Spindle's collet is ER11 specification than other size ER11 collets will work with your spindle.

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I bought a 1.5kw spindle that came with the ER11 6mm collet. I found collets for 1/4" and 1/2" but will these work with my existing nut? I see there is a nut for sale but it says its just for Bosh and Porter Cable etc.

Depending if the spindle can work with this specific VFD, it might be possible. However we would not like to risk you working unit, with a possible match so we would like more details on your specific model and any information available on the spindle itself.

Response
The only info on the spindle is 2.2KW 400HZ 220V. Made by Zhong Hua Jiang.

Was originally on a Delta C200 vfd. That is 220 single phase.

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I purchased a vfd and spindle from a friend, his set up is 220. I don't have 220 in my shop. My question is can I use your 110 vfd with this spindle??

We do have a relay board that words like a standard relay.

Here is the URL of the relay board that we offer:

https://www.buildyourcnc.com/item/electronicsAndMotors-breakout-Relays-relay-board-250V-12A-5V

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I HAVE YOUR MACH3 USB BOB, DO YOU GUYS SELL A TORCH CONTROL RELAY CAN WIRE UP TO TURN MY PLASMA ON AND OFF HOW WOULD WIFE THAT TOO THIS BOB?

Yes, you can send your electronics to us for repair, or retrofit to work with either Mach3, Mach4 or LinuxCNC. You can send us an email at customerService@buildyourcnc.com to set up your appointment.

Some of the types of CNC electronics we will consider.

- We will work on electronics from other manufacturers as long as you are ok with the Mach3, Mach4 or LinuxCNC control software for your CNC machine or CNC router.

- We will repair or retrofit used CNC electronics.

- Some customers find that electronics are overwhelming to put together so we will finish these electronics wiring and assembly for you.

The cost for these includes labor cost for the time it takes to finish the CNC electronics repair or retrofit and for any parts that need to be replaced or added.

Here is an example of CNC electronics that we worked on for a customer:

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My cnc electronics does not turn on with my spindle. How can I fix it?

It sounds like you got a misprinted book. If you purchased it from us, please contact us directly for a replacement. If you bought it from Amazon or a third party, you'll need to contact them. General information about lead screws is available on this website and at buildyourtools.com.

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Just bought Build Your own CNC Machine book. It is missing the chapter on lead screws that is described on page 181 at the end of Chaprer 16. Where can I get this info?