Hardinge CHNC retrofit- Another one on the way!

using rmsvss6_8.bit.

Sorry I didn't look closely, there is no such pin as resolver.xx counter-mode
You can see the available resolver pins with halcmd show pin
or read the resolver section of the hostmot 2 manual with:

man hostmot2

typed in a terminal window

this is the error line in :

hardinge.hal:136: parameter or pin 'hm2_5i23.0.resolver.00.counter-mode' not found
could be a typo etc , attach your hal and ini file

Alright I deleted the counter mode parameter and linux cnc boots up. It still shows an ini error but it boots so I guess that's a start, below is the error I get in terminal. I have the system sitting a table, not hooked up to the machine so most of the pins are floating right now. The axis readouts continually increment, and when I hit machine power i get a axis following error, I guess that would be normal for floating pins. anyway, I need to hook it up to the lathe but I cant apply power untill I get the servo drive back in since the wiring is not secured. I have also attached a zip containing my ini and hal file for anybody who would be kind enough to take look.

I think the servo drive may be finally fixed. I can get a dc voltage out on the armature connection when I pull the correct pin low. However I am still waiting on some more transistors to come in before I can button it up and put it back in. I will post a list of all the transistors I had to replace and their modern replacements for those who are intrested as soon as I can scan it in.





eric@eric-desktop:~$ linuxcnc /home/eric/linuxcnc/configs/Hardinge/hardinge.ini
LINUXCNC - 2.5.0
Machine configuration directory is '/home/eric/linuxcnc/configs/Hardinge'
Machine configuration file is 'hardinge.ini'
Starting LinuxCNC...
emc/usr_intf/halui.cc 2131: iniLoad error
INFO CLASSICLADDER- No ladder GUI requested-Realtime runs till HAL closes.
joint 0 following error
emc/task/taskintf.cc 614: Error on axis 0, command number 81
emc/task/taskintf.cc 614: Error on axis 2, command number 81
joint 2 following error
joint 0 following error
emc/task/taskintf.cc 614: Error on axis 0, command number 96
emc/task/taskintf.cc 614: Error on axis 2, command number 96
joint 2 following error
Shutting down and cleaning up LinuxCNC...
Cleanup done
eric@eric-desktop:~$

Yes I did steal shamelessly from your config files, thanks by the way, they helped me immensely. I tried to comment out some of the enable lines, however Linux failed to start after doing so. I’m not entirely sure I commented out the correct lines though. What lines are the actual enable signals? Also I was looking over your diagrams, I see an estop out to a ssr, I am guessing this is a power circuit cut for the drives? However I did not see an feedback signal to Linux for an external estop button, am I missing something? Thanks again John.

I tried commenting out the enable lines out with no success. I also tried commenting out the pwm enable lines, which also did not work. I finally commented out the resolver feed back signals and it fixed the problem. I measured .03 volts on the sin cos pins for resolver feeback. I think the stray voltage was giving emc false feedback. The machine came with a set of extra resolvers, so I think I may connect them directly and see if I can get any recognition in emc.

The resolver hardware will be recognized regardless of external connections to the 7I49.noise etc

The first step to checking the resolver hardware is to verify that you have correct signal levels at the sine and cosine outputs
these should be measured across the sine/cos wires with an AC voltmeter into the 7I49 with Linuxcnc started. These voltages will vary with resolver shaft position, but the highest value should be 1V RMS. If you get a very low signal I would check the excitation
on the 7I49 RESDRV pins (measure across the pins with a AC voltmeter) This should be about 2V RMS. NOTE DONOT ground either RESDRV pin as they are both at ~ 4V DC above ground

Once you have verified correct signal levels you should be able to move on to getting the resolver scale set properly