PNCconf error

Using 5i25/7i76 mesa cards, and setting up in pncconf. I set up all of the axis and went back to test them

Tried testing the X axis and got this error

TRACEBACK (most recent call list):
File "usr/bin/pncconf", line 9204, in update_tune_axis_params
halrun.flush()
I/O Error: [Errno 32] Broken Pipe

5i25 is cabled to the 7i76, W1 and W2 are correctly jumpered, and field power applied to TB1.

thanks,
Ken

PNCconf had a test/tune button. Clicked on it, and X axis "tune" page came up, tried moving X axis and got the error.

I'll try in Axis.

thanks,
ken

OK, went back and completed PNCconf without "test/tune" performed on any axes.

Trying to find "Axis" to test, went to Apps, CNC, linuxcnc, my configs, enco-mill, enco-mill clicked on it and got several page "error"

How can i copy "error" message to thumb drive and copy to my laptop to post here? I don't have an internet connection on the LinuxCNC computer.

Also seems I would need to "test/tune" each axis when working through PNCconf??? When I clicked on "enable" button and tried to jog the axis using an arrow key I got the message in the first post.

thanks,
Ken

OK, checked 7i76 board and both LED's are lit. Checked the voltage from the Radio Shack 24v transformer and it is putting out 36v.

Not good. It did this when I first installed it, I turned everything off, checked my wiring, and when I turned it back on it was putting out 24v.

OK, now 30minutes to an hour later than first two sentences in this reply post.

I checked my 7i76 and both LED'd were lit, Checked the voltage again on the transformer. It was putting out 24v, but the full wave rectifier was putting out 36v. Go figure??? I rewired the transformer for 12v output. It is putting out 12v and the rectifier is putting out 16v.

Rebooted Linux, went to my configs and enco-mill booted up properly showing 3D engraving program.

Still trying to figure out how to test axes, figure acceleration speeds, etc.???

thanks,
Ken

A power supply consisting of a transformer followed by a
bridge rectifier and a filter capacitor (you do have a 1000 uF or so filter capacitor I hope)
will put out a DC voltage of about about 1.414 times the transformer voltage
so nominally ~33V from a 24V transformer. With line voltage variations, 36V is within reason, but 36V is too high
for the 7I76 field I/O. it will complain about this to Linuxcnc and not allow starting the comm link

PCW,

Thanks, no filter capacitor, I just turned everything off, and I'll head to Radio Shack to pick one up.

thanks,
Ken

PS.

Should I leave it at 12v or step back to 24v after installng the 1000uF filter capacitor, or does it matter??

thanks,
Ken

PCW wrote:

A power supply consisting of a transformer followed by a
bridge rectifier and a filter capacitor (you do have a 1000 uF or so filter capacitor I hope)
will put out a DC voltage of about about 1.414 times the transformer voltage
so nominally ~33V from a 24V transformer. With line voltage variations, 36V is within reason, but 36V is too high
for the 7I76 field I/O. it will complain about this to Linuxcnc and not allow starting the comm link

Concerning the filter capacitor, can I simply place the leads on the capacitor into the same terminals on the TB1 that the power from the transformer/rectifier are in and tighten every thing down? I know the longer is lead is + and the shorter lead -. BTW the capacitor is 1000uf, 35v, electrolytic.

I looked at how the capacitors were installed on the 201's, and they soldered to the pins that the 201's mount to.

thanks,
Ken