My Newb Plasma Table Attempted Build
I had no idea that this would require so much interaction with programming. For me, it's way more than I wanted to have to get into.
I've attached the .hal and .ini files. I don't have any pictures handy of the wired connections, but here are how they go:
THCAD 5V+ <---> 7I96 TB2 pin 12 5V+
THCAD FOUT- <---> 7I96 TB2 pin 8 ENC-
THCAD FOUT+ <---> 7I96 TB2 pin 7 ENC+
THCAD GND <---> 7I96 TB2 pin 9 GND
On the analog side, + IN goes to the J15 out in the plasma, - IN goes to the J16 in the plasma, and the 2 shields go to frame and chassis grounds. I have a 1MOhm resistor on the +IN wire and another on the -IN wire, both located inside the plasma power supply and soldered/heat shrink insulated. I did measure voltage during a PULSE command and was still getting the 169.8v from the electronics side of those wires. The plasma is a Hypertherm Powermax 1000 g3 (no integrated voltage divider). That should cover all of the physical connections and whatnots.
Just so you know, the amber LED indicator comes on the THCAD-10, so it is getting the 5v power. The freq jumper is set to F32 position as per the guide instructions.
I think the THCAD-10 isn't communicating with the 7i96. I've triple checked the physical connections, and they match what the guide and primer say to do (although the primer example is a 7i76). I'm probably gonna just see if I can find someone who wants this THCAD-10 and go with a price THC or something else.
What does the encoder velocity pin read (in halmeter) ? if this is not zero, its likely the THCAD and 7i96 are communicating
Note the the yellow LED on the low voltage side of the THCAD should blink more quickly when plasma voltage is applied
dvn4life1972 wrote: Just so you know, the amber LED indicator comes on the THCAD-10, so it is getting the 5v power. The freq jumper is set to F32 position as per the guide instructions.
Pat, everything seems to be set up correctly. On the THCAD, there should be a flashing LED. THe frequency changes with voltage, but it should be slowly flashing at 0 volts. Does it do that?
I'm not familar with your plasma cutter. Is it HF start by any chance?