Instructions

Page 16
EA Elektro-Automatik GmbH
Helmholtzstr. 31-37 • 41747 Viersen
Germany
Fon: +49 2162 / 3785-0
Fax: +49 2162 / 16230
www.elektroautomatik.de
[e-mail]
PS 2000 B Single Series
2.3.4 Connection to DC loads
• Connection of loads which are also voltage sources and can probably generate voltages
higher than 110% nominal of the device model isn’t allowed!
• Connection of voltage sources with reversed polarity isn’t allowed!
The DC output is located on the front of the device and isn’t protected by a fuse. The
cross section of the connection cable is determined by the current consumption, cable
length and ambient temperature.
The DC output sockets are so-called safety sockets which allow for the use of so-called
safety plug where the protective plastic sleeve is either rigid or retractable. Alternatively,
standard laboratory cables with 4 mm Büschel plugs can be used. Those are not suitable
for currents higher than 10 A, so that the 20 A model requires to make custom cables
using higher cross section lead and special 4 mm banana plugs which are rated for 20 A.
For cables up to 5 m and average ambient temperature up to 50°C, we recommend:
up to 3 A: 0.75 mm² up to 10 A: 1.5 mm²
up to 20 A: 2.5 mm²
per lead (multi-conductor, insulated, openly suspended). If the cables are long then the
cross section must be increased to avoid voltage loss and overheating.
2.3.5 Grounding of the DC output
The metal socket between the DC plus and minus output is connected to PE and be used to ground any of DC
output poles by direct connection or to ground hardware which is connected as load.
2.3.6 Connecting the USB port
The device features an integrated USB port on the front. It can be connected to a PC or other suitable control
applications (PLC) via a standard USB cable (not included), in order to remotely control and/or monitor the unit.
2.3.6.1 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 Communication Device Class (CDC) device and is usually integrated in
current operating systems such as Windows 7 or 10. But it’s strongly recommended to use and install the included
driver installer (on USB stick) to gain maximum compatibility of the device to our softwares.
2.3.6.2 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. With newer versions of Linux or MacOS, a generic CDC driver
should be “on board”.
2.3.6.3 Alternative drivers
In case the CDC drivers described above are not available on your system, or for some reason do not function
correctly, commercial suppliers can help. Search the Internet for suppliers using the keywords “cdc driver windows“
or “cdc driver linux“ or “cdc driver macos“.