National Instruments NI PXIe-1085 User Manual

USER GUIDE

NI PXIe-1085 Modular Power Supply

The NI PXIe-1085 modular power supply is a replacement part for the NI PXIe-1085 chassis.

Caution This power supply is not compatible with any other National Instruments

chassis.

Introduction

To minimize downtime caused by a power-supply failure, the NI PXIe-1085 chassis has a modular power supply.

Unpacking

Carefully inspect the shipping container and the power supply for damage. Check for visible damage to the metal work. Check to make sure all handles, hardware, and connectors are undamaged. Visually inspect the inside of the power supply for any possible damage, debris, or detached components. If damage appears to have been caused during shipment, file a claim with the carrier. Retain the packing material for possible inspection and/or reshipment.

What You Need to Get Started

 NI PXIe-1085 chassis (the unit being repaired)

 NI PXIe-1085 power supply

 Read Me First: Safety and Electromagnetic Compatibility

 NI PXIe-1085 User Manual (provided with the chassis; also available at ni.com/support)

 #2 Phillips screwdriver

Installation and Maintenance

The information in this section is for qualified service personnel only. Read the Read Me First: Safety and Electromagnetic Compatibility document included with your kit before using the

power supply.

Caution Many components within the chassis under repair are susceptible to static

discharge damage. Service the chassis only in a static-free environment. Observe standard handling precautions for static-sensitive devices while servicing the chassis. Always wear a grounded wrist strap, or equivalent, while servicing the chassis.

Caution Always disconnect the AC power cable before cleaning or servicing the

chassis.

Caution Never connect the AC power cable to the power supply until you install it

in a chassis. Do not use, test, or configure the power supply outside of a chassis.

The power supply is a replacement part for the NI PXIe-1085 chassis. The NI PXIe-1085 User Manual contains all of the most up-to-date chassis service procedures, including removal and replacement of power supplies. The chassis includes a hardcopy of the user manual; additionally, you can download a softcopy from

Removal

Before attempting to replace the power supply, verify that there is adequate clearance behind the chassis. Disconnect the power cable from the power supply on the back of the chassis. Identify the eight mounting screws for the NI PXIe-1085 that attach the power supply to the chassis. Using a Phillips screwdriver, remove the screws. Pull on the two rear handles of the power supply to remove it from the back of the chassis, as shown in Figure . About halfway through removing the shuttle, the rail safety catches engage to prevent the power supply from falling out. Press down on the rail safety catches to remove the power supply the rest of the way, as shown in Figure 1.

ni.com/support.

After removing the supply from the chassis, you can access the modular power supply. To remove the modular power supply, first loosen the four screws that retain it. Refer to Figure for the screw locations. After loosening the screws, you can remove the modular power supply by rotating the handle away from the fans and pulling upward when it is in the upright position, as shown in Figure 2.

2 | ni.com | NI PXIe-1085 Modular Power Supply User Guide

Figure 1. Removing Power Supply

1 Power Supply Mounting Screws (8x) 2 Power Supply 3 Modular Power Supply Screws (4x)

4 NI PXIe-1085 Chassis 5 Rail Safety Catch (Both Sides)

+ 5 hidden pages