i would use "ENABLE 1"  instead of "CHARGE PUMP".

i never understood "CHARGE PUMP", maybe depending of my bad english.

sorry i will finish for today, allready late here in Bavaria.

but i think we are very Close.

Thank you again for the help.

I used my o-scope to test the output of pin 16 (charge pump) to pin 25 (gnd) at the db25 of the UC100. I can cycle reset and see the signal change state. If I plug the gender changer into the UC100 and check pin 16 I get no change of state. Within the gender changer is where the charge pump signal stops. Off to the local electronics store for a new one.

I bought two new gender changers for less than $5. I installed one and this seems to work. All was functional except the charge pump until I changed another setting. In CONFIG--> GENERAL CONFIG, I ticked the box for "Charge Pump On In Estop". I tested this out and the motors go inactive if I close Mach3. This is what I was looking for. All limit and home switches behave exactly as expected. Thus I was finally able to set the machine to machine coordinate home.

Thanks again TPS, your insight was absolutely key to my success!!

...and I didn't have to tear everything down t figure this out.

Tony

Hello Tony,

glad to hear that everthing is ok now.
i am happy that i was able to set a few Triggers for the drirection to go.

Thomas