Messages

291

dspMC/IP Motion Controller / Re: Need Help! DSPMC Setup

« on: April 25, 2013, 04:36:20 PM »

so this one then:

while(1)
     SetDSPData(44, GetDSPData(35) )
wend


this is going to energize and de-energize the output within couple of milliseconds at most.  is that not fast enough?  may be there is delay in your brake mechanism.  the controller I believe is doing it right.

rgds
Rufi

292

dspMC/IP Motion Controller / Re: Need Help! DSPMC Setup

« on: April 25, 2013, 04:30:12 PM »

are you using output 44 or 43 for the brake?

this will turn the brake on when PID is OFF:

while(1)
     SetDSPData(44, NOT(GetDSPData(35)) )
wend


This version will turn the brake on when PID is ON:

while(1)
     SetDSPData(44, GetDSPData(35) )
wend

dont know what polarity is needed in your setup.

thanks

293

dspMC/IP Motion Controller / Re: Need Help! DSPMC Setup

« on: April 25, 2013, 04:09:51 PM »

Hello Tom,

I think you should enclose your code in a non-terminating while loop. You can use the NOT() function to invert the value of GetDSPData(35).


while(1)
     SetDSPData(44, NOT(GetDSPData(35)) ) :REM brake output is the inverse of pidON
wend

294

dspMC/IP Motion Controller / Re: Need Help! DSPMC Setup

« on: April 12, 2013, 08:38:27 PM »

Tom,  

I think based on the info you told me, you don't need to disable any axis by using DoOemButton(), because looks like the spindle can always run in active feedback control mode.   you can do gcode or m3/m4/m5 on the spindle while the encoder feedback and PID is always enabled.

you need to  disable the axis only in case you want some specific analog voltage output on the DAC channel.  To do m3/m4/m5, no need to disable axis because you always have encoder feedback available.


hope this helps

rgds
Rufi

295

dspMC/IP Motion Controller / Re: Need Help! DSPMC Setup

« on: April 05, 2013, 07:38:17 PM »

hi Tom,  why you have to run the spindle as open-loop spindle or rotary axis?  what kind of application is it.  I am looking into the issue here and I should have an update for you to email soon.

regards,
Rufi

296

dspMC/IP Motion Controller / Re: Need Help! DSPMC Setup

« on: March 30, 2013, 11:36:12 PM »

hi Tom,

can you email the xml profile and the message log of mach3.

do you have the debug window open?  that will help to isolate the problem.  you can also email the contents of debug window.

also what is the version numbers it reports on the status screen?

rgds
Rufi

297

dspMC/IP Motion Controller / Re: Need Help! DSPMC Setup

« on: March 29, 2013, 06:35:02 PM »

Ok let me say it differently.  take a 18 gauge or so wire and connect it between 7535 J8 negative terminal and DSPMC J2 pin 17.  also connect DSPMC J2 pin 17, 7, 22 and 25 to the negative of your 24v and 5v power supply.  Let me know how that works.

-rufi





 

298

dspMC/IP Motion Controller / Re: Need Help! DSPMC Setup

« on: March 29, 2013, 05:31:57 PM »

well, then follow the 7535 J8  to DSPMC J2 wiring as shown in the drawing.  It is extremely important.  I think you are missing a solid common ground connection between your 5v external power supply and DSPMC.  You really don't need an external 5v supply for 7535 breakout.  DSPMC has enough current on 5v power.

regards,
Rufi

299

dspMC/IP Motion Controller / Re: Need Help! DSPMC Setup

« on: March 29, 2013, 02:52:39 PM »

hi Tom,

I think you need to connect the earth ground and a good power connection between the breakout board and the DSPMC.  attached is a hand drawn wiring diagram.   we will include a cleaner version in the user guide soon.

also make sure the signal ground on the servo drives is connected to J2 common and earth ground.

regards,
Rufi

300

HiCON Motion Controller / Re: HiCON step/dir controller launched

« on: March 10, 2013, 02:27:39 PM »

currently there are no PID loops inside HiCON to do closed loop control.  however if you use encoder feedback from motor or glass scale, it is used as the starting point of every move, so if there are any lost steps by the motor, they will be removed when the next move is started.  www.machmotion.com has done many HiCON installations using AC drives in this setup with excellent results.  They also use differential step/dir signals which virtually eliminates any loss of steps.

regards,
Rufi