VFD Spindle Control via OpenBuilds BlackBox Controller and Software

$0=10.0 ; Step pulse time, microseconds
$1=255 ; Step idle delay, milliseconds
$2=0 ; Step pulse invert, mask
$3=4 ; Step direction invert, mask
$4=0 ; Invert step enable pin, boolean
$5=7 ; Invert limit pins, boolean/mask
$6=1 ; Invert probe pin, boolean
$8=0 ; Ganged axes direction invert as bitfield
$9=0 ; PWM Spindle as bitfield where setting bit 0 enables the rest
$10=511 ; Status report options, mask
$11=0.010 ; Junction deviation, millimeters
$12=0.002 ; Arc tolerance, millimeters
$13=0 ; Report in inches, boolean
$14=0 ; Limit pins invert, mask
$15=0 ; Coolant pins invert, mask
$16=0 ; Spindle pins invert, mask
$17=0 ; Control pins pullup disable, mask
$18=0 ; Limit pins pullup disable, mask
$19=0 ; Probe pin pullup disable, boolean
$20=0 ; Soft limits enable, boolean
$21=1 ; Hard limits enable, boolean
$22=1 ; Homing cycle enable, boolean (Grbl) / mask (GrblHAL)
$23=3 ; Homing direction invert, mask
$24=100.0 ; Homing locate feed rate, mm/min
$25=1000.0 ; Homing search seek rate, mm/min
$26=250 ; Homing switch debounce delay, milliseconds
$27=5.000 ; Homing switch pull-off distance, millimeters
$28=0.100 ; G73 retract distance, in mm
$29=0.0 ; Step pulse delay (ms)
$30=24000.000 ; Maximum spindle speed, RPM
$31=0.000 ; Minimum spindle speed, RPM
$32=0 ; Laser-mode enable, boolean
$33=5000.0 ; Spindle PWM frequency
$34=0.0 ; Spindle off Value
$35=0.0 ; Spindle min value
$36=100.0 ; Spindle max value
$37=0 ; Stepper deenergize mask
$39=1 ; Enable printable realtime command characters, boolean
$40=0 ; Apply soft limits for jog commands, boolean
$43=1 ; Homing passes
$44=4 ; Homing cycle 1
$45=3 ; Homing cycle 2
$46=0 ; Homing cycle 3
$62=0 ; Sleep Enable
$63=3 ; Feed Hold Actions
$64=0 ; Force Init Alarm
$65=0 ; Require homing sequence to be executed at startup
$70=7 ; Network Services
$73=1 ; Wifi Mode
$74= ; Wifi network SSID
$75= ; Wifi network PSK
$100=200.000 ; X-axis steps per millimeter
$101=200.000 ; Y-axis steps per millimeter
$102=200.000 ; Z-axis steps per millimeter
$110=2500.000 ; X-axis maximum rate, mm/min
$111=2500.000 ; Y-axis maximum rate, mm/min
$112=2500.000 ; Z-axis maximum rate, mm/min
$120=500.000 ; X-axis acceleration, mm/sec^2
$121=500.000 ; Y-axis acceleration, mm/sec^2
$122=500.000 ; Z-axis acceleration, mm/sec^2
$130=708.000 ; X-axis maximum travel, millimeters
$131=800.000 ; Y-axis maximum travel, millimeters
$132=430.000 ; Z-axis maximum travel, millimeters
$320=grblHAL ; Hostname, max: 64
$322= ; IP Address
$323= ; Gateway
$324= ; Netmask
$325=23 ; Telnet port
$326=80 ; HTTP port
$327=81 ; Websocket port
$341=0 ; Tool Change Mode
$342=30.0 ; Tool Change probing distance
$343=25.0 ; Tool Change Locate Feed rate
$344=200.0 ; Tool Change Search Seek rate
$345=200.0 ; Tool Change Probe Pull Off rate
$346=1 ; Restore position after M6 as boolean
$370=0 ; Invert I/O Port Inputs (mask)
$384=0 ; Disable G92 Persistence
$396=30 ; WebUI timeout in minutes
$397=0 ; WebUI auto report interval in milliseconds
$398=35 ; Planner buffer blocks
$481=0 ; Autoreport interval in ms
$I=leadmachine1010

 

Not sure what has happened but now i get no voltage change when I command on the VFD from Control. Getting .3 v send M3 S24000 no increase in voltage at the multi meter. plugged the VFD back in also no spindle rpms.

I can hear a click in the BB when command is sent both on and off. But no voltage chage

 

Really not much. Unmounted the BB from the back of the Machine. Cut the wire ties on the wire loom to get the signal wire to the VFD away from the rest of the wires. Made a pigtail to plug into the BB to make it easier to test the voltage. But I have tested with the Pigtail as well as directly on the terminals on the BB both same result. I have changed $33 to 1000 and changed it back to 5000 both have no change in the current no voltage situation. I have restarted the BB as well as the control program.

 

Yes I also made sure everything else was working all axis move and the coolant can command on and off

 

The Light is Bright when commanded dont notice any deviation. But the light only comes on when the tool is commanded. I think power is good. How do i check PWM? I have attached pic of the front and the connection on the BB

 

Well looks like PWM is the current issue. The PWM LED never comes on. Is it fried?

 

HERO STATUS!

Ok i am getting voltage change when tool is activated and PWM LED is on.

Can i load the saved GRBL settings?

We are back to the original issue of .59v when the tool is off

 

Ok so i imported backup and that put me back to no voltage change. Reset Eprom everything good again. SO i decided that I would just update the settings manually. As soon as i change the Max spindle speed to 24,000 back to the issue of no voltage change and PMW led not coming on. If i leave it at 1000 then all is good with PMW and voltage. I have even gone as far as that is the only setting i change from the factory lead1010 settings.

 

So yes after updating the Grbl setting of max spindle speed to 24,000 reset back box. Using the menu item in control for 24,000 or 12,000 all the same not PWM led no voltage change.

 

Ok solved 2 of the three issues. pushed the reset button on the BB instead of relying on the reset from the control program. Fixed the PWM at 24000 max spindle speed. Also lower the PWM Freq to 1000 fixed the lower end of the rpms now spindle off it is not slightly spinning anymore.

But with 24000 trimmed exactly to 10v all the RPMs are much slower as displayed on the VFD. command 18000 get 16800 command 24000 get 22800. That seems like it is substantial

 

On my initial VFD setup but i think it would be a good to go back through it. Also i am going to check the voltage at the other end going into the VFD maybe there is voltage drop from the BB to the VFD.

 

yes i updated that setting as well. The spindle now comes to full stop is the only thing that changed the variation w the rpms remains

 

Thank you for your Help! All is fixed.

 

Hi everyone,
I just got a Sinamics V20 (Siemens VFD) and I'm not sure how to wire it to the BBX32. Can someone give me some ideas?
Looking at the V20 terminals diagram looks like the 0-10V (BBX32) can go to terminal 3: AI2 (AI2: Single-ended, unipolar current and voltage mode/0V to 10V). GND (BBX32) to terminal 5: 0V (Reference potential for terminals 1, 2, 3, 4, 6, 7, and 13).
Now, from the relay 2 (BBX32) comes the COM, NO and NC wires. I'm really confused about that wiring. Looks like they must go to the Digital Inputs terminals and I should have some jumper between 12: DIC and 14: 0V or 13: 24V








Thank you

 

Ok, thanks Peter, I'll do that with pleasure.
Let's see what comes up from the Siemens forum.... they are electronics engineers....sooo technical terminology.