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Question #: 14378

Question: My pokeysCNC board creates and analog signal of 0-10V for 0 to 24000 spindle rpm just like it should from Mach3. However, when the spindle is on, the voltage only gets to about 3.8V for 24000 rpm. It seems like the vfd is drawing more current than the pokeyscnc analog output can produce. It there an easy solution to this problem?

Current Solution

Do you have the Pokeys57CNC connected to a 24V external power supply?

Additional Information:
Yes, a 24V external power supply with the jumper positioned. I'm using the ethernet port so the 24v is the only source of power. I plan to measure the amp draw when I have a chance to see how much the vfd is drawing on the analog out.

Additional Information:
Further information. The resistance across the terminals on the vfd is 22k ohms. With an independent 0-10v current source I can run the spindle from 20 to 400 Hz. The PokeysCNC only gets to 3.8v with the vfd attached (and the vfd is at 150 Hz) compared to 10v when the vfd is not attached. The power to the PokeysCNC is steady at 24.18 V, so I'm not maxing out the power supply. Still looking for thoughts on what might be going on?

Additional Information:
And the other thing - The measured amperage is 0.17 mA for the 0-10 V signal (which makes perfect sense for 3.7 V and 22k Ohms).

Additional Information:
Just to bring finality to this issue - I added a 2.2 microfarad capacitor across the 0-10V input terminal (from signal to ground). This solved the issue. Evidently, it was an electrical noise issue.

Respond:

Other Possible Solutions to this Question

  • I LIVE IN ITALY AND WISH TO KNOW MORE ABOUT RADIATIONS CAUSED FROM MOBILE TELEPHONES. TELECOM WOULD LIKE PLACE A WIRE-ANTENNA THE HEARTH OF MY TOWN, I'M AFRAID IT. WHICH KIND RISK HEALTH COULD IT CAUSE? THANK YOU IF WILL SEND ME SOME INFORMATION SCIENTIFIC ARTICLES THIS PROBLEM!

    See the question on our "Ask the Expert" question-and-answer list on cellular towers under nonionizing radiation for a discussion of RF safety issues associated with cellular radios. The technology underlying cellular radios and base station antennas is similar around the world, but there are differences in systems design and RF safety limits in different countries. For a summary of cellular radio RF safety issues with attention to international differences see the excellent Web page, Cellular Phone Antennas (Base Stations) and Human Health, by John E. Molder, Ph.D., from the Medical College of Wisconsin. Gary H. Zeman Sc.D., CHP

    Click the link to add information to this solution:
    I LIVE IN ITALY AND WISH TO KNOW MORE ABOUT RADIATIONS CAUSED FROM MOBILE TELEPHONES. TELECOM WOULD LIKE PLACE A WIRE-ANTENNA THE HEARTH OF MY TOWN, I'M AFRAID IT. WHICH KIND RISK HEALTH COULD IT CAUSE? THANK YOU IF WILL SEND ME SOME INFORMATION SCIENTIFIC ARTICLES THIS PROBLEM!

  • I just received a replacement spindle (2.2kW 220v). However, when I attempted it use the new spindle, it would only reach 1500 rpm. Is there something I need to change on the spindle controller?

    VFD settings........
    1) To program the VFD, wire it up, plug it in. It takes several seconds to come to life.

    2) Push the PRGM button to enter programing mode.

    3 )Push the SET button. The display will read PD000.

    4) If you push the SET button again, it will display the present setting of PD000.

    5 )By pushing the up or down arrows, you can change the setting to whatever it needs to be. (This is just an example. PD000 needs no changes)

    6)Push the SET button again to lock in the setting of PD000 and advance to the next number, in this case, PD001.

    7) Push the SET button and it will display the present setting of PD001. Again, use the up and down arrows as necessary to set PD001, then push SET again to lock it in.

    Note: You can also scroll through the PD numbers with the up and down arrows.

    8) make all settings this way.

    9) by pushing the SET button you can scroll through the settings. First push of SET moves to the next number, second push displays it's setting, third push moves to the next PD number.

    Note- If you take too long, it will leave the programing mode on it's own. If it does, just push PRGM again to return to programing mode. Then press SET and continue what you were doing.

    10) Start with PD013. Set it to 1, which returns the settings to the factory settings.

    11) Then set PD005 to 400, PD004 to 400, and PD003 to 400 IN THAT ORDER.

    12) Then set the following: PD041=8, PD144=3000

    13) Set PD209=50

    That's it for the programing. You should get 24000RPM when you push RUN.

    Click the link to add information to this solution:
    I just received a replacement spindle (2.2kW 220v). However, when I attempted it use the new spindle, it would only reach 1500 rpm. Is there something I need to change on the spindle controller?

  • I JUST RECEIVED A REPLACEMENT SPINDLE (2.2KW 220V). HOWEVER, WHEN ATTEMPTED IT USE THE NEW SPINDLE, WOULD ONLY REACH 1500 RPM. IS THERE SOMETHING NEED TO CHANGE ON CONTROLLER?

    VFD settings........
    1) To program the VFD, wire it up, plug it in. It takes several seconds to come to life.

    2) Push the PRGM button to enter programing mode.

    3 )Push the SET button. The display will read PD000.

    4) If you push the SET button again, it will display the present setting of PD000.

    5 )By pushing the up or down arrows, you can change the setting to whatever it needs to be. (This is just an example. PD000 needs no changes)

    6)Push the SET button again to lock in the setting of PD000 and advance to the next number, in this case, PD001.

    7) Push the SET button and it will display the present setting of PD001. Again, use the up and down arrows as necessary to set PD001, then push SET again to lock it in.

    Note: You can also scroll through the PD numbers with the up and down arrows.

    8) make all settings this way.

    9) by pushing the SET button you can scroll through the settings. First push of SET moves to the next number, second push displays it's setting, third push moves to the next PD number.

    Note- If you take too long, it will leave the programing mode on it's own. If it does, just push PRGM again to return to programing mode. Then press SET and continue what you were doing.

    10) Start with PD013. Set it to 1, which returns the settings to the factory settings.

    11) Then set PD005 to 400, PD004 to 400, and PD003 to 400 IN THAT ORDER.

    12) Then set the following: PD041=8, PD144=3000

    13) Set PD209=50

    That's it for the programing. You should get 24000RPM when you push RUN.

    Click the link to add information to this solution:
    I JUST RECEIVED A REPLACEMENT SPINDLE (2.2KW 220V). HOWEVER, WHEN ATTEMPTED IT USE THE NEW SPINDLE, WOULD ONLY REACH 1500 RPM. IS THERE SOMETHING NEED TO CHANGE ON CONTROLLER?

  • Just for general knowledge. If a spindle gets i.e. 240VAC, and the drivers 36-50VDC for power, why do you need 5VDC for the Breakout Board (BlueBrew)? Is it only for the relay? I think I've seen other BoB's working without power supply, or am I wrong?

    Our breakout board, does require 5v to operate the correct voltages coming in from the drivers and also coming in from your computer, now the 5V will be supplied by the USB connection, so no external power supply is needed, for either our USB/Parallel breakout board.

    Click the link to add information to this solution:
    Just for general knowledge. If a spindle gets i.e. 240VAC, and the drivers 36-50VDC for power, why do you need 5VDC for the Breakout Board (BlueBrew)? Is it only for the relay? I think I've seen other BoB's working without power supply, or am I wrong?

  • 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?

    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.

    Click the link to add information to this solution:
    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?

  • I bought Mach 4 and Mach 3 USB Motion card STB4100. The installation Manual you direct me to is for installing board with Mach3. Where can I find directions for the combination of products I bought? The axis motors are held stationary by the magnets but when I try to jog an axis from mach 4 program, no movement.

    The fact that you cannot move the motors with the keyboard serves as a clue to a couple possibilities.

    - The software may not be communicating with parallel port. (One possibility may be that your step pins are not low active, or vice versa depending on your drivers).
    - You may not be in the correct tab of Mach3. Make sure you are in the Program Run tab.
    - The jog on/off button on the program run screen may not be lit (invoked).

    This address below shows the complete troubleshooting for this type of situation. It will show how to test each pin at the parallel port at the back of the computer and everything else associated with correctly wiring the electronics.

    https://buildyourcnc.com/CNCElectronicsandWiring.aspx




    Additional Information:
    6 axis robot with Mach3 Card 6 Axis Motion Controller

    Click the link to add information to this solution:
    I bought Mach 4 and Mach 3 USB Motion card STB4100. The installation Manual you direct me to is for installing board with Mach3. Where can I find directions for the combination of products I bought? The axis motors are held stationary by the magnets but when I try to jog an axis from mach 4 program, no movement.

  • I bought Mach 4 and Mach 3 USB Motion card STB4100. The installation Manual you direct me to is for installing board with Mach3. Where can I find directions for the combination of products I bought? The axis motors are held stationary by the magnets but when I try to jog an axis from mach 4 program, no movement.
  • Hi Patrick right now I have a parallel port cnc machine that I built in 2013 using the hardware and components I purchased from your website. I want to update my system by changing my current parallel port interface board to a Mach3 USB interface board from your website. Is the Mach3 USB interface board all I need to do this or is there other components I need to get. please advise.
  • BUILDING ONE OF YOUR GREENBULL 6X LONG AND 2.2 KILOWATT SPINDLE DOES NOT FIT. SEEMS LEAD SCREW YOU SENT WITH KIT IS SHORT 42" LOOKS LIKE IT NEEDS TO BE 5 OR 6 INCH LONGER. THIS CORRECT? WHAT THE NEEDED LENGTH FOR UNIT?
  • I just purchased some wire for my 2.2 spindle as per your recommendation it's 14 AWG stranded wire for the VFD to Spindle (U, V, W) connections. However, it's a three wire (black, white and Ground). Which numbers on the female pin connector do I connect the wires to. Cheers.
  • On the Book Build: I'm changing the 13TPI 1/2" lead screw with the 1/2" 10 TPI Acme screw with the anti backlash nut. This is for the Z axis only. What should I know about installing it and what are the numbers I need to plug into the motor tuning area.

    The settings that will have to be change will be your steps per inch in motor tuning (mach 3), or settings/axes(planetCNC). But we do not have the actual numbers/specs that will fit your 10 TPI 5 start lead screw, here is a tutorial video which explains how to get the exact numbers you need! (

    ).
    Here is a default setting that you might be able to tune and adjust accordingly: 1600 steps, accel 400.02, velocity 5.

    Click the link to add information to this solution:
    On the Book Build: I'm changing the 13TPI 1/2" lead screw with the 1/2" 10 TPI Acme screw with the anti backlash nut. This is for the Z axis only. What should I know about installing it and what are the numbers I need to plug into the motor tuning area.

  • 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?

    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.

    Click the link to add information to this solution:
    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?

  • Hi I have ordered the ARM Microcontroller Beginners Kit (STM32F0) on the 23rd of April but the shipping has still yet to arrive. I did not create an account at the time of purchasing and I am not in the address I provided anymore. May I know how should I go about this problem

    Yes, if you have an ordering or shipping issue, please call us during our normal business hours and we will personally look into the issue.

    Click the link to add information to this solution:
    Hi I have ordered the ARM Microcontroller Beginners Kit (STM32F0) on the 23rd of April but the shipping has still yet to arrive. I did not create an account at the time of purchasing and I am not in the address I provided anymore. May I know how should I go about this problem

  • 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?

    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.

    Click the link to add information to this solution:
    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?

  • Hello, I am a student working on a CO2 laser. We recently ordered two 40watt CO2 laser tubes and two 40 Watt CO2 Laser Tube Power Supply at 220V. However, our school is unable to use them due to being 220v. Is it possible to exchange these for the 110v supply, or is there a way we can go about connecting it at 110v instead of 220v? Thank you.
  • 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

    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.

    Click the link to add information to this solution:
    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

  • 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

    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...

    Click the link to add information to this solution:
    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

  • 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.

    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.

    Click the link to add information to this solution:
    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.

  • I am trying to program my 220 volt VFD and it has locked me out. It keeps flashing and the only parameter I can change is P009. I also keep getting a Er 3 code which means input voltage out of parameters but the input voltage is correct. How can I get back to being able to adjust the parameters?

    Can you tell me the model number for that VFD. Use the "Additional Information" for this FAQ to continue add this information and continue the dialog.

    Additional Information:
    Actually, it's the "submit response" button.

    Additional Information:
    It is the XSY-AT1. AT1-2200S

    Additional Information:
    Ok, let me check

    Additional Information:
    You purchased this VFD and spindle combo in April. Have you been using the VFD until now and it just failed? Or is this the first time you are trying to use the VFD? This will allow me to determine if this is a configuration problem or an electrical issue.

    Additional Information:
    According to the manual, P09 is the parameter needed to unlock the VFD if a value has been entered into P08, the password parameter. If the password value is entered into P08, you will need to enter the same password into P09 to see the value in P08 and access the other parameters.

    Additional Information:
    SOLUTION: If you do not remember the password that was entered into P08, then you can enter the value of 55555 into the P09 parameter and P08 will show the password. Take that value presented in P08 and you will be able to enter it into the P09 parameter and the VFD will be unlocked.

    This customer tried the above instruction and he was able to unlock his VFD.

    Click the link to add information to this solution:
    I am trying to program my 220 volt VFD and it has locked me out. It keeps flashing and the only parameter I can change is P009. I also keep getting a Er 3 code which means input voltage out of parameters but the input voltage is correct. How can I get back to being able to adjust the parameters?

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