Retrofitting a 1986 Maho MH400E

Perfect, with excel as guide we don’t have to match the connectors to hall names. My suggestion is to keep everything related to gear change in TB3 and the rest on the relay board to TB2.
But if the order in ribbon is convenient (not entirely random) we can use this instead.
John

Thanks for updating that list. Shame the forum doesn't let us post the Excel files. I aready planned a revision to that Excel file to have a colum for HAL names.

Ihave a business trip this week, with a couple of nights in a hotel, so I'll update the schematics to reflect that pin assignment.

Here is the EXE shield I made. Just some 0.75mm mild steel sheet. I would have used Aluminium, but didn't have any thin enough for my little bender.

Mark

Looks good, have a good trip.
John

No eBay APP ID and/or Cert ID defined in Kunena configurationNo eBay APP ID and/or Cert ID defined in Kunena configurationThe 7i77 will need an external 5V PSU due to excessive load for the PCI bus. I bought this one,


and this relay for the drive enable:


As I hope to fit both together on the free bit of DIN rail in the cabinet...here:


Is your electrical cabinet laid out the same?
Mark

I just revised all the wiring diagrams to reflect all the changes we have been discussing. Please let me know if any errors have snuck in. I wired the new "Enable Drive" relay which I called 19K2, to the 7i77 rather than the 7i84, as the 7i77 will be closer to it, whereas the 7i84 I am putting on the cabinet door under the MAHO relay panel.

I am not sure whether it wouldnt be better to use one of the single axis "Drive Enable pins on 7i77 such as TB5-4, rather than a general prupose outputs like TB8-17 as I currently drew it. What is your opinion John?
Mark