Set up using AMC AB15A100 drives, brushed DC motor Prototrak Plus with Encoders

On order, is new 7i77 card, don't have delivery date, maybe before the weekend,
Many thanks for the help.

The problem may not be the 7I77 it could also be the 5I25
(or some setup issue but that is less likely)

Many thanks, to all that have help!! A new 5i25 & 7i77 card is on the way. The DB25 cable is from the "Kit (5i25 & 7i77 plug & go kit)" from original purchase. Tracking says late Friday delivery.

Many thanks!

new2linux wrote:

PCW, Many thanks for your help. The LEDs stay on, as stated. The screen will not go to the Linuxcnc (logo screen) only to errors as listed.

When the 1st wiring diagram (in this post) & use it as is, the DRO will work & went to DRO screen.

Now, TB-5, has no connection to anything on Pins 1 & 2. No logo screen, just error screen as per diagram on this post (04 May 2022 19:10 - 06 May 2022 18:43 #241996). I have tried the GND to encoder TB-3 GND to Pin11 on AMC SW-1.

Ready need 2nd opinion about new 7i77 card?

Many thanks for all the great help, I am grateful for the help.

Edit: I have checked continuity on the DB25 cable, all straight through, all tested good.

When testing a PP cable for use with Mesa gear, make sure that none of the pins are wired together. Some cheap cables may only have a single ground wire ran and connect all the usual ground pins (pins 18-25) to that one single wire. That would be very bad for a Mesa card that uses some of those pins for powering the card.

Todd Zuercher, many thanks for your help! I hope all has been well with you. The best news would be if, that the mail comes early & my new cards are all that is needed. The cable in question is from the "(5i25 & 7i77 plug & go kit)" from original purchase.

Many thanks to all, that have supported me, I am so grateful.

Edit:I plan to install the 5i25, only & see what screen says, as to hope to tease out if 7i77 is good or not.

One thing to be careful with is to never plug or unplug the DB25 cable between the 5I25 and 7I77 with any power applied to either the PC or the machine, especially if the machine and PC are not in the same enclosure. All connections should be secure before anything is powered.