585,662 active members*
3,143 visitors online*
Register for free
Login
Page 1 of 2 12
Results 1 to 20 of 38
  1. #1
    Join Date
    Apr 2022
    Posts
    32

    connect bob to vfd

    Hello!
    Thanks for all of the help so far- this forum is really supportive!
    Again, I need help on connecting my bob to the vfd. I cannot find the instructions how to connect this.
    Here is my BoB and VFD connections.
    All help greatly appreciated!

  2. #2
    Join Date
    Apr 2022
    Posts
    32

    Re: connect bob to vfd

    Please have a look - is this connection correct? Thanks!

  3. #3
    Join Date
    Jan 2018
    Posts
    1516
    Quote Originally Posted by PeterJK View Post
    Please have a look - is this connection correct? Thanks!
    You want the 0-10v/GND connections. Not the pwm/m5v ones. GND-acom. 0-10v-vi.
    Before connecting vfd:
    1. Make sure vfd is set up to accept 10v analog (not 5v).
    2. Test the analog connections from the bob give the correct output voltages using a meter.


    Get hold of Mactec54 on the forum to give you advice on all your peramiters.
    Also read some of the other posts in the spindles/vfd forum section.
    There's a couple of recent threads using similar vfd that might serve you well.

  4. #4
    Join Date
    Jan 2005
    Posts
    15362

    Re: connect bob to vfd

    Quote Originally Posted by PeterJK View Post
    Please have a look - is this connection correct? Thanks!
    I though I replied but the post must be somewhere else

    Yes, 0-10v Analog output to VI / ACM is correct for speed control

    The Rely connection is FOR / DCM so as per your drawing is correct

    Before you connect the 0-10v to the VFD Drive you must have it working at the Breakout Board first to check this use MDI

    MDI M3S12000 this should give you around 5v there appears to be a pot on the Breakout Board this will allow you to adjust this voltage

    So try different speeds in the MDI to make sure the voltage matches the speed

    What spindle are you using as all the Parameters have to be set correct for this to work
    Mactec54

  5. #5
    Join Date
    Apr 2022
    Posts
    32

    Re: connect bob to vfd

    Quote Originally Posted by mactec54 View Post
    I though I replied but the post must be somewhere else

    Yes, 0-10v Analog output to VI / ACM is correct for speed control

    The Rely connection is FOR / DCM so as per your drawing is correct

    Before you connect the 0-10v to the VFD Drive you must have it working at the Breakout Board first to check this use MDI

    MDI M3S12000 this should give you around 5v there appears to be a pot on the Breakout Board this will allow you to adjust this voltage

    So try different speeds in the MDI to make sure the voltage matches the speed

    What spindle are you using as all the Parameters have to be set correct for this to work
    Thanks!
    I have 5v at m3s12000.

    My spindle info:
    High speed electro spindles - eys8043-18/4.0, air cooled
    220V, 300Hz, 10A, 4.0Kw, 18000 r/min, cos 0.75

  6. #6
    Join Date
    Apr 2022
    Posts
    32

    Re: connect bob to vfd

    Inverter specs - HY04D023B
    single&3 phase 220v 50hz
    4.0kw
    10A output current
    suitable motor - 4.0 kw
    the inverter came together with the spindle.
    I am located in Europe w/household current 220V.

  7. #7
    Join Date
    Jan 2018
    Posts
    1516

    Re: connect bob to vfd

    If spindle is only an 18000rpm max unit, you only want to be getting 9000rpm at 5v.
    Check your pulley settings and any other settings ralated to max speed in your control.
    Remember not to overlook minimum % settings too so spindle can't be overheated by running below minimum rpm spec.

    Get your control right first while waiting for Mactec to reply regarding vfd.

  8. #8
    Join Date
    Jan 2005
    Posts
    15362

    Re: connect bob to vfd

    Quote Originally Posted by PeterJK View Post
    Thanks!
    I have 5v at m3s12000.

    My spindle info:
    High speed electro spindles - eys8043-18/4.0, air cooled
    220V, 300Hz, 10A, 4.0Kw, 18000 r/min, cos 0.75
    OK what does it have at 18,000 RPM and 9,000 RPM, it seems that you need to make some adjustments with the PWM or the Pulley Ratio

    What do you have the PWM set too??

    Are you using 3Ph power supply or Single Phase??

    Does your spindle have an electric fan or fix.??

    Your 4Kw spindle can't be 10A it would be a minimum of around 14A up to 16A with a power factor of 0.75 it's normally much better than this for VFD driven motors
    Mactec54

  9. #9
    Join Date
    Jan 2018
    Posts
    1516
    Quote Originally Posted by mactec54 View Post
    OK what does it have at 18,000 RPM and 9,000 RPM, it seems that you need to make some adjustments with the PWM or the Pulley Ratio
    What do you have the PWM set too??
    Are you using 3Ph power supply or Single Phase??
    Does your spindle have an electric fan or fix.??
    Your 4Kw spindle can't be 10A it would be a minimum of around 14A up to 16A with a power factor of 0.75 it's normally much better than this for VFD driven motors

    Can you double check his analog bob connections for me from posts 1 & 2.
    The diagram in post 2 looked like he's connected to the pwm/m5v ones in the row of 4 on the bob.
    It's looks to be the other 2 connections are the 0-10v/GND (post 1).
    It's bugging me.

  10. #10
    Join Date
    Apr 2022
    Posts
    32

    Re: connect bob to vfd

    Ok, I set the max spindle speed to 18000 in the Spindle/Pulleys window.
    Now I get:
    m3s9000= 5.3V
    m3s18000= 9.43V
    I tried tuning the volts w/ the potentiometer to get closer to 5 or 10V, but there was no change when turning the pot.

    I am using single phase power supply. Spindle only has the fan on the rotor shaft - no electric fan. Regarding the 10A- that is what is stamped on the plate.
    Where do I set PWM values?
    Could you please send me the VFD parameters.

  11. #11
    Join Date
    Jan 2005
    Posts
    15362

    Re: connect bob to vfd

    Quote Originally Posted by dazp1976 View Post
    Can you double check his analog bob connections for me from posts 1 & 2.
    The diagram in post 2 looked like he's connected to the pwm/m5v ones in the row of 4 on the bob.
    It's looks to be the other 2 connections are the 0-10v/GND (post 1).
    It's bugging me.
    Yes, good find on a second look they don't appear to in the correct, 0-10v output, they should be on the (2) screw Terminals closest to the Relays he may have it correct as he has 9.43v so that is close to 10v the other output is 5v, he should check though to make sure.
    Mactec54

  12. #12
    Join Date
    Jan 2005
    Posts
    15362

    Re: connect bob to vfd

    Quote Originally Posted by PeterJK View Post
    Ok, I set the max spindle speed to 18000 in the Spindle/Pulleys window.
    Now I get:
    m3s9000= 5.3V
    m3s18000= 9.43V
    I tried tuning the volts w/ the potentiometer to get closer to 5 or 10V, but there was no change when turning the pot.

    I am using single phase power supply. Spindle only has the fan on the rotor shaft - no electric fan. Regarding the 10A- that is what is stamped on the plate.
    Where do I set PWM values?
    Could you please send me the VFD parameters.
    What control are you using Mach3 or something else. in Mach3 you have to open Config Ports and Pins then the spindle setup tab, this is where the PWM setting is set to 100 and see what the voltage is then
    Mactec54

  13. #13
    Join Date
    Jan 2005
    Posts
    15362

    Re: connect bob to vfd

    Quote Originally Posted by PeterJK View Post
    Ok, I set the max spindle speed to 18000 in the Spindle/Pulleys window.
    Now I get:
    m3s9000= 5.3V
    m3s18000= 9.43V
    I tried tuning the volts w/ the potentiometer to get closer to 5 or 10V, but there was no change when turning the pot.

    I am using single phase power supply. Spindle only has the fan on the rotor shaft - no electric fan. Regarding the 10A- that is what is stamped on the plate.
    Where do I set PWM values?
    Could you please send me the VFD parameters.
    Make sure you are wired to the 0-10v analog output, I missed it on your drawing which is incorrect that is most likely why the trim pot was not doing anything because you have it wired incorrect.

    I hope you have enough juice as that is a bigger than normal spindle for a Single Phase power supply, you will need a 30A supply for it to run on Single Phase and that will be border line.

    The spindle amp rating of 10A is incorrect for a 4Kw motor 2.2Kw run at up to 10A

    This should get you going

    Huanyang Mactec54
    Input Power Connection Single Phase
    Terminals R and T Plus Ground
    4Kw Air Cooled 18,000 RPM

    PD000=0 for Parameter unlock ( 1 ) for Parameter Lock

    PD001=0 (1 For Remote Control)

    PD002=0 ( 1 For 0-10v Terminal Control or Remote Trim Pot Control )
    ( J1 Also Needs to be set for Terminal Control )

    PD003=300

    PD004=300

    PD005=300

    PD006=90

    PD007=20

    PD008=220

    PD009=66

    PD010=15

    PD011=120 ( This may need to have a higher Minimum Speed for your Spindle watch Temperature )

    PD013= 08 is for Factory reset, Only use this to set VFD to Factory Default Settings

    PD014=10 ( Acceleration Adjust to suit)

    PD015=10 (Deceleration Adjust to suit)

    PD141=220 ( Motor Rated Voltage )

    PD142=14 ( Motor Max Amps)

    PD143=2 ( Motor Number of Poles)

    PD144=3000 (Max Motor RPM 18,000)

    PD070=0 ( This may need to be set to 1 if Control Voltage is 0-5v )

    PD072=300

    PD073=120 ( This may need to have a higher Minimum Speed for your Spindle watch Temperature )

    PD120=120 (Stall Prevention )

    PD174= ( Your VFD Drives Max Amp Output Rating )
    Mactec54

  14. #14
    Join Date
    Apr 2022
    Posts
    32

    Re: connect bob to vfd

    Thanks for the settings.

    I moved the VFD jumper from the VR position left to the VI position
    I set PD001 to 1
    I set PD002 to 1
    all else was set as per your settings list

    I am unfortunately unable to adjust the speed from Mach3. 0-10V output is working correctly (5v at 9000rpm, 10V at 18000rpm).
    The attached photos show my ports and pins settings. The photo of the speed setting shows the setting at 500, but the spindle is turning full speed, at the same time the inverter shows full 300hz.
    Also, the RPM in the spindle speed window, only shows 0, it does not show any rpm's.

    What am I doing wrong?

  15. #15
    Join Date
    Apr 2022
    Posts
    32

    Re: connect bob to vfd

    Also I am getting "Too fast for pulley. Using max." error

  16. #16
    Join Date
    Jan 2005
    Posts
    15362

    Re: connect bob to vfd

    Quote Originally Posted by PeterJK View Post
    Also I am getting "Too fast for pulley. Using max." error
    What do you have for the Kernel setting, look in Ports / Pins
    Mactec54

  17. #17
    Join Date
    Jan 2005
    Posts
    15362

    Re: connect bob to vfd

    Check the jumper J1 it may need to be in its other position this happens sometimes
    Check these Parameters
    PD044=??
    PD072=300
    PD073=120

    When connected to the VFD is the 0-10v still changing with the different speed commands.

    The wires between the Breakout Board and the drive need to be shielded or Twisted Pairs a tight Twist
    Mactec54

  18. #18
    Join Date
    Apr 2022
    Posts
    32

    Re: connect bob to vfd

    Kernel setting - 25000hz
    pdo44=2
    PD072=300
    PD073=120
    Will replace wires- currently neither shielded or twisted.
    I tried with the jumper in the original position, same issues.

    When connected to the VFD, and I run M3S9000, the volts jump from 5 to 10v, once I engage the spindle.

  19. #19
    Join Date
    Apr 2022
    Posts
    32

    Re: connect bob to vfd

    ...and the spindle automatically starts spinning once the computer is turned on and sends power to the bob.

  20. #20
    Join Date
    Apr 2022
    Posts
    32

    Re: connect bob to vfd

    replaced wires with tightly twisted pair. Same behavior.

Page 1 of 2 12

Similar Threads

  1. please help me connect this vfd to my bob
    By stoneforth in forum Spindles / VFD
    Replies: 19
    Last Post: 08-26-2021, 10:40 PM
  2. Connect Opto Switch to Powered Input on BOB?
    By Ishtar in forum CNC Machine Related Electronics
    Replies: 12
    Last Post: 04-14-2018, 09:46 PM
  3. Replies: 5
    Last Post: 03-26-2017, 09:13 PM
  4. Wiring Help Needed for Chinese BOB: Where do these wires connect?
    By tonebag in forum Stepper Motors / Drives
    Replies: 1
    Last Post: 07-15-2015, 09:09 PM
  5. How to connect Polulu stepper drive to BOB
    By Bx3mE in forum Stepper Motors / Drives
    Replies: 9
    Last Post: 01-29-2014, 10:29 AM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •