BUMP Controller cabling

[jmb74]

Hello
Can somebody give me an advice about bump controller power cabling ?
I would like to connect 1 Bump Controller, 2 Revolectrix Powerlab 8 (single charger, not dual) and 2 Revolectrix Power Station PS24V55A.
The first picture (Bump Controller user's guide, page 6) shows the cabling with a dual Powerlab 8 and 2 Power Sources.

In order to reduce wiring and EC5 connectors between the Bump Controller, the 2 single Revolectrix Powerlab 8 and the 2 Revolectrix Power Station PS24V55A, I would like to realize the wiring as the second picture.
Everything looks right ?
Is there any problem to permanently connect together the 2 negative Power Station PS24V55A screw terminals ?
Many thanks for your help
(sorry for my English writing)
Jean
France

[RevoKelly]

Yes, that will work just fine.

[Heli_Jelly]

Is anyone running an efuel power supply with their bump charger?
Mainly I'm interested in knowing if the psu has a common ground across the board on all their ports.

[jmb74]

I am very surprised
Before connecting the two negative screw terminals of my PS24V55A units, I have made a test with an ohmmeter.
One of the power station have the negative screw terminal connected with the ground (the power station case). The other one have the negative srew terminal insulated from the ground.
However, the two power station are identical, using the same Dell power supply, PN 0YN339.
So, I am afraid of damaging them, when connecting the two negative screw terminals ?