Ea Elektro Automatik EA Elektro-Automatik 06230319, 1 Output Variable DC Power Supply, , Bench 06230319 Hoja De Datos

Page 80

EA Elektro-Automatik GmbH

Helmholtzstr. 31-33 • 41747 Viersen

Germany

Fon: +49 2162 / 3785-0

Fax: +49 2162 / 16230

Series connection of two or multiple devices is basically possible. But for reasons of safety and isolation, some 

restrictions apply:

•

Both, negative (DC-) and positive (DC+) output poles, are coupled to PE via type X capacitors, 

limiting the max. allowed potential shift (see technical specs for values)

•

The Share Bus must not be wired and used!

•

Remote sensing must not be used!

•

Series connection is only allowed with devices of the same kind and model, i.e. power supply 

with power supply, like for example PS/PSI 9080-60 2U with PSI 9080-60 2U or PS 9080-60 2U

Series connection in Master-Slave mode is not supported. It means, all units have to controlled separately regard-

ing set values and DC output status, whether it is manual control or digital remote control.
According to the limit of the potential shift that comes with series connection, units with a certain nominal output 

voltage must not be connected in series at all. For example, the 750 V, because there the DC minus is only isolated 

up to ±400 V DC against PE. On the opposite, two 360 V units are allowed to be connected in series.
The analog interfaces of units in series connection are allowed to be wired in parallel, because they are galvanically 

isolated from the device and the DC output. The grounds (AGND, DGND) on the analog interface are also allowed 

to be directly connected to PE, like it automatically happens when controlling and directly connecting it to a PC.
In remote control, an almost synchronous control can be achieved by using any available Ethernet interface module 

and sending message as broadcast, so they address multiple units at once.