National Instruments NI SCXI -1339 Bedienungsanleitung

INSTALLATION INSTRUCTIONS

NI SCXI -1339

Terminal Block for the NI SCXI-1129

This guide describes how to install and connect signals to the

National Instruments SCXI-1339 terminal block to configure the

SCXI-1129 switch module as a dual 4 ×32 matrix.

Screw terminals on the SCXI-1339 allow you to access each 4 ×32 matrix.

The SCXI-1339 also contains terminals for scanner advanced output and

external input trigger signals.

Refer to the NI Switches Getting Started Guide to determine when to install

the terminal block. Visit ni.com/switches for information on other

switching solutions.

Conventions

The following conventions are used in this guide:

»The »symbol leads you through nested menu items and dialog box options

to a final action. The sequence File»Page Setup»Options directs you to

pull down the File menu, select the Page Setup item, and select Options

from the last dialog box.

This icon denotes a note, which alerts you to important information.

This icon denotes a caution, which advises you of precautions to take to

avoid injury, data loss, or a system crash. When this symbol is marked on a

product, refer to the Read Me First: Safety and Radio-Frequency

Interference document for information about precautions to take.

bold Bold text denotes items that you must select or click in the software, such

as menu items and dialog box options. Bold text also denotes parameter

names.

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NI SCXI-1339 Installation Instructions 2 ni.com

italic Italic text denotes variables, emphasis, a cross reference, or an introduction

to a key concept. This font also denotes text that is a placeholder for a word

or value that you must supply.

monospace Text in this font denotes text or characters that you should enter from the

keyboard, sections of code, programming examples, and syntax examples.

This font is also used for the proper names of disk drives, paths, directories,

programs, subprograms, subroutines, device names, functions, operations,

variables, filenames and extensions, and code excerpts.

1. Unpack the Terminal Block

To avoid damage in handling the terminal block, take the following

precautions:

Caution Never touch the exposed pins of connectors.

• Ground yourself using a grounding strap or by touching a grounded

object.

• Touch the antistatic package to a metal part of your computer chassis

before removing the terminal block from the package.

Remove the terminal block from the package and inspect the terminal block

for loose components or any sign of damage. Notify NI if the terminal

block appears damaged in any way. Do not install a damaged terminal

block into your system.

Store the SCXI-1339 in the antistatic envelope when not in use.

2. Verify the Components

Make sure that you have the following items:

❑SCXI-1339 terminal block

❑SCXI chassis

❑SCXI-1129 switch module

❑1/8 in. flathead screwdriver

❑Numbers 1 and 2 Phillips screwdrivers

©National Instruments Corporation 3 NI SCXI-1339 Installation Instructions

❑Long-nose pliers

❑Wire cutter

❑Wire insulation stripper

3. Connect Signals

To connect the signal(s) to the terminal block, refer to Figures 1 and 2

while completing the following steps:

Caution This module is rated for Measurement Category I and intended to carry signal

voltages no greater than 150 V. This module can withstand up to 800 V impulse voltage.

Do not use this module for connection to signals or for measurements within Categories II,

III, or IV. Do not connect to MAINS supply circuits (for example, wall outlets) of 115 or

230 VAC. Refer to the NI Switches Getting Started Guide for more information on

measurement categories.

When hazardous voltages (>42.4 Vpk/60 VDC) are present on any relay terminal, safety

low-voltage (≤42.4 Vpk/60 VDC) cannot be connected to any other relay terminal.

1. Prepare the signal wire by stripping the insulation no more than 7 mm

from the end of the wire.

2. Remove the top cover screw.

3. Unsnap and remove the top cover.

4. Loosen the two strain-relief screws on the strain-relief bar.

5. Run the signal wires through the strain-relief opening.

6. Insert the stripped end of the wire fully into the terminal. Secure the

wire by tightening the screw of the terminal. No bare wire should

extend past the screw terminal. Exposed wire increases the risk of a

short-circuit causing a failure.

7. Connect the safety earth ground to the safety ground lug.

8. Tighten the two screws on the strain-relief assembly to secure the

cables.

9. Reinstall the top cover.

10. Replace the top cover screw.

NI SCXI-1339 Installation Instructions 4 ni.com

Figure 1. SCXI-1339 Top Cover Diagram

1 Top Cover 2 Top Cover Screw

©National Instruments Corporation 5 NI SCXI-1339 Installation Instructions

Figure 2. SCXI-1339 Parts Locator Diagram

4. Install the Terminal Block

To connect the SCXI-1339 to the SCXI-1129 front panel, refer to Figure 3

and complete the following steps:

Note Install the SCXI-1129 if you have not already done so. Refer to the NI Switches

Getting Started Guide for more information.

1. Plug the SCXI-1339 onto the front connector of the SCXI-1129.

2. Tighten the top and bottom thumbscrews on the terminal block rear

panel to hold it securely in place.

1 Screw Terminals

2 Rear Connector

3 Thumbscrew

4 Strain-Relief Screw

5 Strain-Relief Bar

6 Safety Ground Lug

NI SCXI-1339 Installation Instructions 6 ni.com

Figure 3. Installing the SCXI-1339 Terminal Block

Specifications

Maximum Working Voltage

Maximum working voltage refers to the signal voltage plus the

common-mode voltage.

Channel-to-earth .....................................150 V, Installation Category I

Channel-to-channel.................................150 V

1 Thumbscrews 2 Front Connector 3 SCXI-1129 4 SCXI-1339

©National Instruments Corporation 7 NI SCXI-1339 Installation Instructions

Maximum Current

Maximum current

(per channel) .......................................... 2 ADC, 2 AAC

Environmental

Operating temperature............................ 0 to 50 °C

Storage temperature ............................... –20 to 70 °C

Humidity ................................................ 10 to 90% RH, noncondensing

Pollution Degree .................................... 2

Approved at altitudes up to 2,000 m

Indoor use only

Safety

This product is designed to meet the requirements of the following

standards of safety for electrical equipment for measurement, control,

and laboratory use:

• IEC 61010-1, EN 61010-1

• UL 3111-1, UL 61010B-1

• CAN/CSA C22.2 No. 1010.1

Note For UL and other safety certifications, refer to the product label, or visit

ni.com/certification, search by model number or product line, and click the

appropriate link in the Certification column.

Electromagnetic Compatibility

Emissions ............................................... EN 55011 Class A at 10 m

FCC Part 15A above 1 GHz

Immunity................................................ EN 61326:1997 + A2:2001,

Table 1

EMC/EMI............................................... CE, C-Tick, and FCC Part 15

(Class A) Compliant

Note For EMC compliance, you must operate this device with shielded cabling.

National Instruments, NI, ni.com, and LabVIEW are trademarks of National Instruments Corporation. Refer to the Terms of Use section on

ni.com/legal for more information about National Instruments trademarks. Other product and company names mentioned herein are

trademarks or trade names of their respective companies. For patents covering National Instruments products, refer to the appropriate location:

Help»Patents in your software, the patents.txt file on your CD, or ni.com/patents.

CE Compliance

This product meets the essential requirements of applicable European

Directives, as amended for CE marking, as follows:

Low-Voltage Directive (safety)..............73/23/EEC

Electromagnetic Compatibility

Directive (EMC) .....................................89/336/EEC

Note Refer to the Declaration of Conformity (DoC) for this product for any additional

regulatory compliance information. To obtain the DoC for this product, visit

ni.com/certification, search by model number or product line, and click the

appropriate link in the Certification column.

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