National Instruments PXI-1031DC Installation Manual

INSTALLATION GUIDE
NI PXI-1031DC DC Cable Kit
The PXI-1031DC chassis should not be connected to a centralized DC system,
Cautions
it should be connected to a localized battery or DC power source. The DC cable should be
terminated and connected to the DC source with UL Listed or Recognized Components
rated minimum 30 V, 30 A, and suitable for 10 AWG wire.
Observe proper polarity when connecting to a DC power source. Refer to
drawing CD_186633-XX for more detail.
Fuse Replacement
Disconnect the cable from the PXI-1031DC chassis and any power source before
Caution
replacing the fuse or connecting the fuse holder to the DC cable.
Reducing Cable Length
The PXI-1031DC DC cable is designed to connect the PXI-1031DC
chassis to a DC power source. The cable consists of a DC power connector,
18 feet of 10 AWG cable, and a high heat, impact resistant, water tight fuse
holder with a 30 A fuse installed. For maximum DC power source
protection, the fuse is located as close to the DC power source as is
practical.
Complete the following steps to replace the fuse:
1. Unscrew the two halves of the fuse holder body by turning one half in
a counter-clockwise direction.
Replace the fuse with an F30A, 500 VDC/600 VAC, 1.5 in. × .41 in.
2.
(10 mm × 38 mm) Midget, fast-acting fuse.
3. Align the mating tabs on one half of the fuse holder body with the slots
on the other half, and screw the two halves back together in a clockwise
direction. Hand tighten only.
NI recommends using the cable at its designed length. If it is necessary to
shorten the cable for a particular application, the following guidelines
should be observed.