National Instruments PXIe-1092 User manual

INSTALLATION GUIDE
PXIe-1092 Fan Replacement
This document describes how to remove and install the fan assemblies in a PXIe-1092 chassis.
Caution Disconnect all power cables and wait at least 30 seconds prior to replacing
fan assemblies.
Replacing the PXI Module Fan Assembly
Before attempting to replace the rear module fan assembly, verify that there is adequate
clearance behind the chassis. Disconnect all power cables from the power supplies on the back
of the chassis. Wait at least 30 seconds for the power supplies’ internal power to dissipate.
Follow these steps to remove the rear fan assembly:
1. Using a Phillips screwdriver, remove the six #6-32 mounting screws and #8-32 ground
screw that attach the fan panel to the chassis. Refer to Figure 1 for more details.
2. Remove the rear chassis feet.
3. With the internal fan harness still connected, carefully pull and rotate fan assembly from
rear cavity of chassis. Use caution when removing the fan assembly to avoid damaging the
fan wire harness.
4. Disconnect fan harness from the internal chassis receptacle as shown in Figure 2.
Follow these steps to install a new rear fan assembly:
1. Angle the fan assembly to install the fan harness plug into the internal chassis receptacle.
Use care to avoid damaging the fan harness or receptacle.
2. Connect the internal fan harness and install fan assembly into the rear cavity of the chassis
as shown in Figure 2. Use caution when installing the fan panel assembly to avoid pinching
or damaging the wire harness.
3. Replace chassis feet.
4. Using a Phillips screwdriver, tighten the six #6-32 mounting screws and #8-32 ground
screw into the rear of the chassis. To meet the shock and vibration specifications listed in
the PXIe-1092 Specifications, tighten screws to 11.5 lb · in. (1.3 N · m) of torque.
™

2|ni.com |PXIe-1092 Fan Replacement Installation Guide
Figure 1. Replacing the Rear Fan Assembly
Figure 2. Internal Fan Harness
Replacing the Side Fan Assembly
Before attempting to replace the side fan assembly, verify that there is adequate clearance to the
side of the chassis. Disconnect all power cables from the power supplies on the back of the
chassis. Wait at least 30 seconds for the power supplies’ internal power to dissipate.
1 Fan Harness Plug
2 PXIe-1092 Chassis
3 PXI Module Fan Assembly
4 Rear Chassis Feet (2x)
5 Ground Screw
6 Mounting Screws (6x)
1 Fan Receptacle 2 Fan Harness Plug
2
6
34
1
5
1
2

PXIe-1092 Fan Replacement Installation Guide |© National Instruments |3
Complete the following steps to remove the side fan assembly:
1. Using a Phillips screwdriver, remove the four #4-40 mounting screws that attach the
side fan cover.
2. Remove the side fan cover from chassis.
3. Using a Phillips screwdriver, remove the two #2-56 mounting screws that hold the side fan
assembly onto the chassis.
4. Locate the side fan assembly harness in the internal chassis cavity and disconnect the fan
from the chassis receptacle. Use caution when removing the fan assembly to avoid
damaging the internal wire harness.
5. Pull the side fan assembly straight from chassis and remove.
Complete the following steps to install a new side fan assembly.
1. Plug the side fan assembly plug into the internal chassis fan receptacle.
2. Set the side fan assembly into the chassis side fan cavity. Use caution when placing the
wire harness into the chassis to avoid damaging the internal or fan wire harness.
3. Using a Phillips screwdriver, hand tighten the two #2-56 side assembly mounting screws to
the chassis. To meet the shock and vibration specifications listed in the PXIe-1092
Specifications, tighten screws to 5.0 lb · in. (0.6 N · m) of torque. Use the side fan cutout
to pull clear extra cable from chassis side panels to prevent pinching.
4. Place all extra cable into chassis side fan cavity.
5. Using a Phillips screwdriver, tighten the four #4-40 side fan cover mounting screws to
the chassis. To meet the shock and vibration specifications listed in the PXIe-1092
Specifications, tighten screws to 6.7 lb · in. (0.8 N · m) of torque.
Figure 3. Replacing the Side Fan Assembly
1 Chassis Side Fan Cavity
2 Side Fan Assembly
3 Side Fan Bracket Mounting Screws (2x)
4 Side Fan Cover
5 Side Fan Cover Mounting Screws (4x)
2
3
4
5
COOLING CLEARANCESREQUIRED.SEE MANUAL. COOLING CLEARANCESREQUIRED.SEEMANUAL.
PXIe-1092
9
HHH
3
2
1
H
4
H
56
H
7
H
8
PS
TEMPFANS
USEONL
YCOMPATIBLERACK MOUNTKITS.
USE ONL
YCOMPATIBLERACKMOUNTKITS.
COOLING CLEARANCE REQUIRED.SEEMANUAL. COOLING CLEARANCE REQUIRED.SEEMANUAL.
1

© 2019 National Instruments. All rights reserved.
377864A-01 Jan19
Information is subject to change without notice. Refer to the NI Trademarks and Logo Guidelines at ni.com/trademarks for more information
on NI trademarks. Other product and company names mentioned herein are trademarks or trade names of their respective companies. For patents
covering NI products/technology, refer to the appropriate location: Help»Patents in your software, the patents.txt file on your media, or the
National Instruments Patents Notice at ni.com/patents. You can find information about end-user license agreements (EULAs) and third-party
legal notices in the readme file for your NI product. Refer to the Export Compliance Information at ni.com/legal/export-compliance
for the NI global trade compliance policy and how to obtain relevant HTS codes, ECCNs, and other import/export data. NI MAKES NO EXPRESS OR
IMPLIED WARRANTIES AS TO THE ACCURACY OF THE INFORMATION CONTAINED HEREIN AND SHALL NOT BE LIABLE FOR ANY ERRORS. U.S.
Government Customers: The data contained in this manual was developed at private expense and is subject to the applicable limited rights and
restricted data rights as set forth in FAR 52.227-14, DFAR 252.227-7014, and DFAR 252.227-7015.
Worldwide Support and Services
The NI website is your complete resource for technical support. At ni.com/support you have
access to everything from troubleshooting and application development self-help resources to
email and phone assistance from NI Application Engineers.
Visit ni.com/services for NI Factory Installation Services, repairs, extended warranty, and
other services.
Visit ni.com/register to register your NI product. Product registration facilitates technical
support and ensures that you receive important information updates from NI.
A Declaration of Conformity (DoC) is our claim of compliance with the Council of the European
Communities using the manufacturer’s declaration of conformity. This system affords the user
protection for electromagnetic compatibility (EMC) and product safety. You can obtain the DoC
for your product by visiting ni.com/certification. If your product supports calibration,
you can obtain the calibration certificate for your product at ni.com/calibration.
NI corporate headquarters is located at 11500 North Mopac Expressway, Austin, Texas,
78759-3504. NI also has offices located around the world. For telephone support in the United
States, create your service request at ni.com/support or dial 1 866 ASK MYNI (275 6964).
For telephone support outside the United States, visit the Worldwide Offices section of
ni.com/niglobal to access the branch office websites, which provide up-to-date contact
information, support phone numbers, email addresses, and current events.