Titleiiarms wrote: ↑Sat Nov 06, 2021 1:42 pm
I think what Marty means is you have to provide the VFD Zero speed output signal back to the OAK board for the tool changer to work. Guess they dont want tools spinning around and getting unclamped
Correct. Oak needs to see that the ORIENT is complete before completing the tool change cycle.
When the spindle orient completes the ZERO Speed goes active.
Marty
Re: Cant turn on Orientation on Delta C2000
Posted: Sat Nov 06, 2021 2:03 pm
by ashesman
Yeah, I already have a ZS wire from the old VFD. I will hook it up. My tool change is entirely custom as is not a standard tool change system so I will wait for oriented signal not ZS signal.
Re: Cant turn on Orientation on Delta C2000
Posted: Sat Nov 06, 2021 2:10 pm
by martyscncgarage
ashesman wrote: ↑Sat Nov 06, 2021 2:03 pm
Yeah, I already have a ZS wire from the old VFD. I will hook it up. My tool change is entirely custom as is not a standard tool change system so I will wait for oriented signal not ZS signal.
So the C2000 has an oriented signal output?
That would accomplish the same thing.
Did you write the tool change PLC or did you hire it out?
Marc is one of the best.
Marty
Re: Cant turn on Orientation on Delta C2000
Posted: Sat Nov 06, 2021 2:21 pm
by ashesman
The C2000 has a configurable orient complete output. Can set the tolerance and time. It also has zero speed but I dont know when zero speed would ever add any value.
I write my own PLC code. I write software for a job so it's not too much of a challenge for me.
Re: Cant turn on Orientation on Delta C2000
Posted: Sat Nov 13, 2021 3:08 am
by ashesman
Drive is all sorted and tuned now. See the following video. 6000 RPM max, 0.35s acceleration/deceleration times. Very stiff orient positioning.
I will try remember to put up a parameter file from the VFD in case anyone else tries to get a servo motor running nicely on one.
Re: Cant turn on Orientation on Delta C2000
Posted: Fri Dec 03, 2021 2:54 pm
by ashesman
Delta C2000 parameter file attached for setup of the VFD for an AC servo motor spindle (Panasonic 1.5kW with 2500 pulse incremental encoder and commutation UVW signals). Requires UVW encoder board. Setup suits the default Oak configuration. Uses -10 to +10V for speed and direction. Also has emergency stop and external fault set up. External fault is used for brake resistor overheat, or disable if not required. A brake resistor is required to stop the spindle fast from high speed. Increase deceleration time if not using a brake resistor. Emergency stop should be connected to Estop. In my case it is wired in parallel to the Oaks EStop DI, but I added an optocoupler isolator (a relay would do) to separate the power domains. Orientation is configured and tuned for fast response. If I remember I will also upload a wiring diagram so match the configuration file.
Re: Cant turn on Orientation on Delta C2000
Posted: Fri Dec 03, 2021 3:56 pm
by martyscncgarage
ashesman wrote: ↑Fri Dec 03, 2021 2:54 pm
Delta C2000 parameter file attached for setup of the VFD for an AC servo motor spindle (Panasonic 1.5kW with 2500 pulse incremental encoder and commutation UVW signals). Requires UVW encoder board. Setup suits the default Oak configuration. Uses -10 to +10V for speed and direction. Also has emergency stop and external fault set up. External fault is used for brake resistor overheat, or disable if not required. A brake resistor is required to stop the spindle fast from high speed. Increase deceleration time if not using a brake resistor. Emergency stop should be connected to Estop. In my case it is wired in parallel to the Oaks EStop DI, but I added an optocoupler isolator (a relay would do) to separate the power domains. Orientation is configured and tuned for fast response. If I remember I will also upload a wiring diagram so match the configuration file.
Wiring diagram attached. Excuse my hand drawing...
Re: Cant turn on Orientation on Delta C2000
Posted: Tue Dec 07, 2021 9:48 am
by martyscncgarage
PDF
Re: Cant turn on Orientation on Delta C2000
Posted: Tue Dec 07, 2021 1:15 pm
by cncsnw
I probably would not wire the VFD's 24V supply to H2 on the Oak.
Even though that supply to Oak shares the H2 header with the spindle analog output and input, it is not actually related to the spindle interface at all.
The 24VDC supply you connect to H2 is used for the servo drive I/O, on the four axis headers. I usually wire the 24V from PS1 (the RQ-65D underneath the Oak unit) to H2 for axis servo drive sequencing.
