No Luck with 5i25 & 7i76

andypugh wrote:

Does the 5i25 say that it has 7i76 firmware installed (on a sticker)

The sticker says "configuration: 7i76x2.BIT".

Instructions please! I don't know what I'm doing. I really want to learn lcnc fully, but my at-home business has me working 12 hours a day/7 days a week. That's why I have asked some ignorant questions. I haven't had time to dive into the documentation.

If we sent a mis-programmed 5I25 I apologize.

We just went through all of our 7I76 kits and did not find
any mis-programmed 5I25s, but it is possible because,
initial loopback testing is done with a 7I77 configuration
so if a card somehow missed re-programming,
it would have a 7I77x2 config.

I will look into our test procedures to see what can be done
to prevent this from happening in the future.

PCW wrote:

If we sent a mis-programmed 5I25 I apologize.

No worries. New firmware has LinuxCNC starting correctly.

glad you managed to sort it with PCW .

It's the curse of the Supermax!! Everything that can go wrong with that machine, does. And when I say everything - It's everything, really. Something massively goes wrong when it will cause the most problems. The last failure was the final straw, which is why I ordered the MESA cards and 3 new 203V drivers for this machine. However, the machine has a reputation to maintain, so upon first power up, it blew one of the new driver's fuses. The machine currently has a switched power supply for each motor. I believe it exposed the drive to excessive voltage before it limited its duty cycle. I've now added 1/2 farad capacitors inline. The power supplies will replaced with a single Toroidal PS. In the meantime, I'm waiting on overnighted fuses from Digikey....$54.17 to overnight some fuses. So, firmware is no problem.

i'd have sent that machine to hell by now ! .
i try not to use switched mode power supply in machines, or failing that a good isolation transformer , failing all else it helps to balance the input , when all the contactors start pulling in