Charles,
In response to your post:
1) The +/-40V and 50V supply connected were varied in steps of 5V so as to maintain a max difference of 10V between VPF and VPP; VNF and VNP. All the while maintaining VSUB as the most negative ( = VNP).
Considering this, i don't believe there should be any issue with the power supply as we were able to configure the board.
Now, the +/-10V supply goes into CC mode as soon as it is turned ON. This is before the +/-40V and +/-50V supplies are turned ON.
2) Even with the Pulser IC on-board, there are no obvious shorts between the supplies and ground.
3) Thank you for the power supply module! I received your e-mail.
Appreciate your support.
Regards,
Vidya