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Intepro Systems
www.inteproate.com
PS 9000 3U Series
2.3.7 Grounding of the DC output
Grounding one of the DC output poles is allowed. Doing so results in a potential shift of the other pole against PE.
Because of insulation, there is a max. allowed potential shift of the DC output poles, which also depends on the
device model. Refer to the technical specifications.
2.3.8 Connecting the “Share” bus
The “Share” connector on the back side is intended to balance the current of multiple units in parallel operation
by balancing the output voltage in CV operation. Thus it’s recommended to use the Share bus in this operation
mode. For further information about this mode of operation can be found in section
„3.9.1. Parallel operation in
Share bus mode“
.
The Share bus furthermore can be used to connect the power supply to a compatible electronic load (see sec
-
tion
„1.9.10. Share Bus connection“
), in order to achieve a correct switchover between sink and source in the
two-quadrants operation.
For the connection of the share bus the following must be paid attention to:
•
Connection is only permitted between compatible devices (see
„1.9.10. Share Bus connection“
for details) and between a max. of 16 units
•
When switching off one or multiple units of a parallel system, because less power is required for
an application, it’s recommended to remove the Share bus plug from the inactive units, because
their Share bus port’s impedance could have a negative impact on the Share bus
•
If a two-quadrants operation system has to be set up where multiple power supplies are con
-
nected to one electronic load unit or a group of electronic loads, all units should be connected
via Share bus.
•
The Share bus is referenced to DC minus. When building a series connection (where allowed,
depending on model), the DC minus will shift its potential and so will the Share bus
2.3.9 Connecting the analog interface
The 15 pole connector (Type: Sub-D, D-Sub) on the rear side is an analog interface. To connect this to a con
-
trolling hardware (PC, electronic circuit), a standard plug is necessary (not included in the scope of delivery). It is
generally advisable to switch the device completely off before connecting or disconnecting this connector, but at
least the DC output.
The analog interface is galvanically isolated from the device internally. Therefore do not con
-
nect any ground of the analog interface (AGND) to the DC minus output as this will cancel the
galvanic isolation.
2.3.10 Connecting the USB port
In order to remotely control the device via this port, connect the device with a PC using the included USB cable
and switch the device on.
2.3.10.1
Driver installation (Windows)
On the initial connection with a PC the operating system will identify the device as new hardware and will try to
install a driver. The required driver is for a Communications Device Class (CDC) device and is usually integrated
in current operating systems such as Windows 7 or 10. But it is strongly recommended to use the included driver
installer (USB stick) to gain maximum compatibility of the device to our softwares.
2.3.10.2
Driver installation (Linux, MacOS)
We can’t provide drivers or installation instructions for these operating systems. Whether a suitable driver is avail
-
able is best found out by searching the Internet.
2.3.10.3
Alternative drivers
In case the CDC driver described above are not available on your system, or for some reason do not function cor
-
rectly, commercial suppliers can help. Search the Internet for suppliers using the keywords “cdc driver windows“
or “cdc driver linux“ or “cdc driver macos“.