67
Operating Guide
PSI 8000 2U Series
EN
Date: 28-06-2012
Using the power supply
12. Miscellaneous
12.1 Accessories and options
Note
More detailed information about options and accessories are
available in seperate documents or upon request.
Following accessories are optionally available:
a) USB-to-Analog interface UTA12
Galvanically isolated remote control via USB (on PC side) and
the device internal analog interface.
b) Option IF: Digital interface cards
Pluggable and retrofittable, digital interface cards for USB,
RS232, CAN, GPIB/IEEE (SCPI only), Ethernet/LAN (SCPI)
or Profibus are available.
c) Option IF: Analog interface card
An extended, 25 pin, galavanically isolated analog interface is
available. It is also pluggable and retrofittable.
Following options are available:
a) Option HS: High Speed Ramping (models from 1kW)
Increased dynamics of the output voltage by reduced output
capacity. It must be pointed out, that other output related values
also increase!
Note
This is a permanent modification which is not switchable.
b) Option ZH: Internal load with car ignition sequence
This internal module, also called two-quadrants module, offers
continuous power up to 100W and pulse peak power of approx.
2400W. The main purpose is to discharge the device‘s output
capacities faster than usual and thus to increase the dynamic
behaviour of the output voltage, without worsen other output
values. A second feature is the built-in car ignition sequence
emulation which can be triggered by a button or remote signal.
This is primarily used in the automotive industry. The module
can be deactivated by a switch.
Note
Only available for devices up to 360V nominal voltage.
c) Option IR: Internal resistance regulation
This option can be purchased subsequently and is unlocked
with a code number in the device‘s setup menu.
After it is unlocked, the user can choose between U/I/P or U/I/R
operation. The power set value will not be adjustable in U/I/R
mode, it is then only defined as a limit in the device settings.
Also see sections 7.8 and 12.3.
Note
It will eventually be required to update the device firmware
before the option can be unlocked. Ask your supplier.
11.2 Networking
The figures below depict networking examples for the digital
control of multiple devices in star-shaped (USB, RS232) or
bus-like (CAN, GPIB) configuration.
Limitations and technical specifications of the bus systems and
the interfaces apply.
With
USB
up to 30 units can be controlled with one PC, ap-
propriate USB hubs with custom power supply assumed.This
basically applies to RS232, too. Differences lie in the handling
and the cable lengths.
With
CAN
up to 30 power supplies per address segment can
be integrated into a new or existing CAN bus system. They are
addressed by the device node and the RID.
With
GPIB
there is a limitation of max. 15 units on one bus, con-
trolled by a GPIB master. Multiple GPIB masters can be installed
in a PC in order to increase the number of addressable units.
Figure 12. USB or RS232 networking
Figure 13. CAN networking example, also applies to GPIB
11.3 Two quadrants operation
The two quadrants operation is described in a seperate appli-
cation note. Please refer to that document, which will be either
available as PDF download on our website or upon request.
