National Instruments NI PXIe-1085 User Manual - page 5
NI PXIe-1085 Modular Power Supply User Guide
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© National Instruments
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5
Connecting Safety Ground
Caution
The NI PXIe-1085 chassis are designed with a three-position NEMA 5-15
style plug for the U.S. that connects the ground line to the chassis ground. To
minimize shock hazard, make sure the electrical power outlet you use to power the
chassis has an appropriate earth safety ground.
If your power outlet does not have an appropriate ground connection, you
must
connect the
premise safety ground to the chassis grounding screw located on the rear panel. To connect the
safety ground, complete the following steps:
1.
Connect a 16 AWG (1.3 mm) wire to the chassis grounding screw using a grounding lug.
The wire must have green insulation with a yellow stripe or must be noninsulated (bare).
2.
Attach the opposite end of the wire to permanent earth ground using toothed washers or a
toothed lug.
Connecting to Power Source
Cautions
Do
not
install modules prior to performing the following power-on test.
To completely remove power, you
must
disconnect the AC power cable.
Attach input power through the rear AC inlet using the appropriate AC power cable supplied.
The Inhibit Mode switch allows you to power on the chassis or place it in standby mode. Set the
Inhibit Mode switch on the back of the chassis to the
Manual
position. Observe that all fans
become operational and all three front panel LEDs are a steady green. Switching the Inhibit
Mode switch to the
Default
position allows the system controller to control the power supply.
Specifications
Caution
Specifications are subject to change without notice.
Electrical
AC Input
Input voltage range ........................................... 100 to 240 VAC
Operating voltage range
1
.................................. 90 to 264 VAC
Input frequency................................................. 50/60 Hz
Operating frequency range
1
.............................. 47 to 63 Hz
Input current rating ........................................... 12 to 6 A
1
The operating range is guaranteed by design.