Campbellboards functions

Could please correct me if my assets are wrong! I want to use the
charge pump and J21 E stop (pin 1&2).

If I understand :

1) When E stop on J21 is pushed, 5v on Geckos is disable and charge
pump on output4 is disable too. And mach2 get the information of an E
stop.
Does J21 E stop disable outputs 1,2,3 too ? Do my steppers keep their
positions if I just disable 5v on my geckos 201?


2) If I use charge pump to enable 220vac on the outputs relay 1,2,3
and enable 70vdc on power input of my geckos, when I push E stop the
220vac and 70 vdc will be cut (Output 4 relay will enable two relays
on for 220vac and the other for 70 vac just before Gecko fuses to
prevent from capacitors discharge). So all my devices powered via
outputs 1,2,3 will stop and my steppers will not be powered so my Z
axis will fall down !!!

So how can I use safely the charge pump and J21 E stop ?

Hope you understand what I want to say !!!