Lagunmatic 3516-SX Retrofit

Yes, you can ignore the ena lines and run the lock-out relay from a 7I77 field output instead

Great!

This control panel is coming together, hoping to have it in the cabinet and testing the servos during the holiday break.

I overlooked the 5v power supply needed for the 7i77, so I ordered that today. It turns out I will need to run an additional cable for the spindle signals so I had to order more shielded wire, and still need to order a replacement fan for the spindle motor so it will be at least a week before I can test the spindle.

Well I didn't make it far in my testing. Having trouble getting my config to start, with the debug message saying:

I start searching and it seems it could be a couple things. First route I start looking into is whether or not I have the right firmware installed on the 5i25. Seems unlikely that I do not, but I cannot verify because I don't have sudo permissions (apparently my "sudo is broken" which is a whole other can of worms...)

Since I couldn't verify the firmware, starting looking at power. I did not touch any jumpers on the 5i25 or 7i77 when I first hooked them up, and I supplied 24v field power to the 7i77 through a benchtop supply. CR3 and CR16 were illuminated, but CR1 was not. Checking the jumpers, I could see the 5i25 was in default position (W2 Down: power not sent through cable) and the 7i77 was in default position (W5 Left: host power used).

At this point, seems obvious why my config won't start, the 5i25 isn't sending power to the 7i77. I unhooked field power, adjusted voltage to 5v, moved the 7i77 W5 jumper to the Right position, and connected external 5v power to the 7i77. This time I do see CR1 illuminate, but my config doesn't start. I realize it's probably because I don't have I/O field power...

Next, I connected the 24v field power back and, moved the 5i25 jumper to the Up position, the 7i77 jumper to the Left position, and powered everything back on expecting to see a light at CR1 and for my configuration to start. Neither is true. I just confirmed, even with the W2 jumper set to UP on the 5i25, I get no voltage reading on pins 22-25 on the connector.

I never connected 5v external power before switching the W5 jumper on the 7i77. Is it possible I damaged the 5i25 by connecting the 7i77 using the default jumper positions for each board?

Or could this still possible be a firmware issue and I need to figure out my sudo permissions before we can say for sure? I purchased this 5i25 alone in the last couple months.

The only way that you can damage a 5I25/cable (if the voltage/polarity is correct)
is supplying external 5V to a 7I77 and having the 5i25 set for no cable power (and unlimited 5V current)
This will often damage the 5I25s cable power option jumper

Note that cable power is only good for a few 100s of mA so may foldback due to the on card PTC
if you have any significant encoder load on the 7I77

If you did not get the 5I25/7I77 as a set it's most likely the 5I25 has 7I76 firmware
so will not work with a 7I77 until re-flashed

PCW wrote: The only way that you can damage a 5I25/cable (if the voltage/polarity is correct)
is supplying external 5V to a 7I77 and having the 5i25 set for no cable power (and unlimited 5V current)
This will often damage the 5I25s cable power option jumper

Note that cable power is only good for a few 100s of mA so may foldback due to the on card PTC
if you have any significant encoder load on the 7I77

If you did not get the 5I25/7I77 as a set it's most likely the 5I25 has 7I76 firmware
so will not work with a 7I77 until re-flashed

Firstly - I have to say your customer service is unparalleled! Truly remarkable.

So I have successfully booted my configuration! Feels great. I'm still on the benchtop so no axis testing yet. This is my first time booting an actual config so I have a lot of exploring to do.

I was able to fix my sudo and reupload the 5i25_7i77x2.bit firmware. I also setup my din rail 24v power supply, so I'm feeding external power to both Field I/O and the 7i77 5v. Since I changed 2 things, I don't know what the exact fix was but I suspect it was a firmware issue.

I'm back!

I'm in the process of closing on a lot for a new home build and this machine won't fit in the new garage, so I have to get it up and running only to sell it. T-minus about 9 months...

Firstly: I got the computer in the cabinet:



The computer powered up just fine, and I started LinuxCNC. Right away I got error messages saying Joint 0 through 2 were in the Home position. This wasn't true for any axis, but I was able to clear the message by manually pressing the limit switches.

Next problem I realized was that the servo amp cards had no power. These should be activated through a relay tied to the 'Machine On' pin. I confirmed continuity from the 7i77 pin to the screw at the relay, but cycling Machine On did not activate the relay. Instead of investigating further, I simply bypassed the relay for now.

Once I had power to the servo amps I was hoping I would be able to move the axes. Alas, I struck out again. Jogging all axes results in no discernible response except a Joint Following Error.

Nothing has been easy about this conversion! I'm so impressed by all the other builds out there, a couple really went quick and I've floundered at every step. Pushing forward...