Atec Agilent-N6700 Series - Manual (Page 5)

5
Plug high power mainframes
into standard AC sockets
without dedicated high current
AC circuits
When you first turn on the N6702A
1200 W MPS mainframe, the main-
frame automatically senses the power
available from the AC line. If the AC
line voltage is such that the resulting
current would exceed a standard AC
outlet rating, the mainframe automati-
cally scales back the available output
power to prevent overloading the
AC line. The N6702A will limit the
output power to 600 W allowing the
high power mainframe to be plugged
into any standard outlet. This is very
convenient for initial bench checkout
of the MPS system. It is also very
convenient for test development,
which is typically done on the bench
when DUT is not yet driven to full
power. You can also control this
power reduction by manually allocat-
ing less than the full available main-
frame power among the modules. As
a result, the N6702A will draw less
power (and less current)
from the AC line.
Triggering
The N6700 Low-Profile MPS main-
frame has hardware trigger in/trigger
out signals which permit the N6700
to be synchronized with external
events. For example, a switch closure
in the fixture can trigger the N6700
to apply voltage to the DUT or take a
measurement.
Drivers
The N6700 comes with both
VXIplug&play drivers and IVI-COM
drivers. LabView drivers are also
available at NI.COM.
Programming language
The N6700 supports SCPI (Standard
Commands for Programmable
Instruments).
Firmware updates
The N6700 firmware is stored in
FLASH ROM and can be easily
updated when new features become
available. Firmware can be down-
loaded into the N6700
over GPIB, LAN, or USB using the
supplied firmware update utility pro-
gram. Agilent recommends that you
keep your N6700 system up to date
with the latest firmware available at
www.agilent.com/find/
N6700firmware.
Output disconnect and polarity
reversal relays
Modules in the N6700 can be indi-
vidually ordered with optional Output
Disconnect Relays (option 761) or
Output Disconnect/Polarity Reversal
Relays (option 760). See the table
on page 16 for option 760 and 761
availability. All relays are built into
the module, so no additional wiring or
rack space is needed to incorporate
the relay function.
Although the plus and minus rail of
the output power mesh are physi-
cally disconnected from the output
terminals with options 760 and 761,
a small AC network is still connected
across the plus and minus output
terminals, This AC network is
required for EMI compliance.
With option 761, Output Disconnect
Relays, mechanical relays disconnect
both the plus and minus side of the
power supply, including the sense
leads.
With option 760, Output Disconnect/
Polarity Reversal Relays, mechanical
relays switch the leads on both the
plus and the minus side of the power
supply, including the sense leads,
resulting in a voltage polarity reversal
at the DUT. In addition to polarity
reversal, option 760 provides the
same output disconnect function as
option 761.
Note: Output current is limited on
some modules when option 760
Output Disconnect/Polarity Reversal
Relays is installed. See the “Available
options” table on page 16 for more
information about maximum current
limitations with option 760.