User manual

71
Instruction Manual
PSI 8000 3U HS PV Series
EN
Date: 10-28-2011
Operating the device
12.5 Altered technical specications
Model 600V / 70A 1000V / 30A 1500V / 30A
Output capacity C
Out
not yet available 22.5μF 15μF
HF ripple constant voltage operation (BW=20MHz)* not yet available <600mV
pp
<1.5V
pp
LF ripple constant voltage operation (BW=20MHz)* not yet available <60mV
pp
<1V
pp
Ripple constant voltage operation (BW=300kHz)* not yet available <160mV
eff
<270mV
eff
HF ripple constant voltage operation (BW=20MHz)* not yet available <30mA
pp
<40mA
pp
NF ripple constant voltage operation (BW=20MHz)* not yet available <8mA
pp
<40mA
pp
Ripple constant voltage operation (BW=300kHz)* not yet available <10mA
eff
<14mA
eff
Regulation 10%...90% I
Max
** (in CV) not yet available <2ms <2ms
Regulation 90%...10% I
Max
** (in CV) not yet available <3ms <2ms
Rise time t
Rise
for 10%...90% U
Nom
(no load) not yet available <3,2ms <1ms
Rise time t
Rise
for 10%...90% U
Nom
(70% load) not yet available <4ms <1.2ms
Recommended f
Max
for ∆U pulsed operation not yet available 150Hz 500Hz
Fall time t
Fall
for 100%...10% (1% ohmic load) not yet available <350ms non-critical
Possible voltage overshoot (pulsed operation) not yet available up to 150V up to 100V
Recommended U
min
> / P
min
> not yet available 40V/160W 60V/240W
* Measured at U
out
>10% and P
out
>5%
** I
Max
is either equal to I
Nom
(for devices without power limitation) or I
Max
= P
Set
/U
Set
(for devices with power limitation)
13. Miscellaneous
13.1 Parallel connection in Share bus mode
Share bus operation is used to gain a symmetric load current
distribution when running multiple units in parallel connection.
Important: in this operation mode, the unit with the highest output
voltage controls and denes the output voltage of the whole
parallel connection. It means, any unit of the system could be
in charge. Thus it recommended to pick a unit that is used to
control the whole system, while the set value of voltage for the
remaining units is set to the required minimum. Voltage and po-
wer set value could be set to 100% or, if not desired, set to equal
values on every unit so that the total results in what‘s required.
In case a unit is broken and will completely shut off, the parallel
connection will continue to work without interruption. This is
called redundancy.
For a device error like overtemperature (OT) or overvoltage,
the output voltage will rise or fall to the highest value that was
adjusted on any of the remaining units.
The wiring of terminal „Share“, which is required for Share bus
operation, is explained in section „5.8. Terminal „Share““. Also
see gure 14.
Note: if remote sense is going to be used, it is recommended
only to connect the „Sense“ input of the main unit that deter-
mines the system voltage.
Attention! This is a purely analogue connection. No totals
formation of actual values on any of the units.
Attention! Share bus connection with units different to
3U series, which also feature a Share bus, is not allowed!
13.2 Series connection
Series connection of two or more units is not allowed!
13.3 Accessories and options
Following accessories are optionally available:
a) Digital interface cards
Pluggable and retrotable, digital interface cards for USB,
RS232, CAN, GPIB/IEEE (SCPI only), Ethernet/LAN (SCPI
only) are available. There is one interface card slot available
with every device model.
b) Extended, analogue interface card
Pluggable and retrotable, galvanically isolated, 25 pole ana-
logue card. For details refer to the seperate interface cards
instruction manual.
Following options are available:
a) Watercooling
Internally integrated water cooling block. The watercooling is
used prevent premature shutdown of the power output because
of overheating.
b) 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 dened as a limit in the device settings.
Note: it will eventually be required to update the device rmware
before the option can be unlocked. Ask your supplier.