National Instruments TB-2725 Bedienungsanleitung

National Instruments TB-2725 Manual

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INSTALLATION GUIDE

TB-2725 Terminal Block

This guide describes how to install and use the National Instruments

TB-2725 terminal block with the NI PXI-4224 modules. The TB-2725 has

16 screw terminals for easy connection of up to eight pairs of input signals,

and one SMB connector for external triggering.

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 Options»Settings»General directs you to

pull down the Options menu, select the Settings item, and select General

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 icon is marked on the

product, refer to the Read Me First: Safety and Electromagnetic

Compatibility document, shipped with the product, for precautions to take.

When this symbol is marked on a product, it denotes a warning advising

you to take precautions to avoid electrical shock.

When this symbol is marked on a product, it denotes a component that may

be hot. Touching this component may result in bodily injury.

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.

ni.com/manuals

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TB-2725 Terminal Block Installation Guide 2 ni.com

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

to a key concept. Italic text 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.

What You Need to Get Started

To set up and use the TB-2725 terminal block, you need the following

items:

❑Hardware

– TB-2725 terminal block

– NI PXI-4224 module

– PXI or PXI/SCXI combination chassis

– Shielded cabling and sensors as required for your application

❑Documentation

–TB-2725 Terminal Block Installation Guide

– Read Me First: Safety and Electromagnetic Compatibility

– DAQ Getting Started guides

– SCXI Quick Start Guide

– NI PXI-4224 User Manual

– PXI or PXI/SCXI combination chassis user manual

Note You can download needed documents from ni.com/manuals.

❑Tools

– Number 1 and 2 Phillips screwdriver

– 1/8 in. flathead screwdriver

– Long-nose pliers

– Wire cutter

– Wire insulation stripper

©National Instruments 3 TB-2725 Terminal Block Installation Guide

Connecting the Signals

Caution To ensure the specified EMC performance, operate this product only with

shielded cables and accessories.

Note Refer to the Read Me First: Safety and Electromagnetic Compatibility document

before removing equipment covers or connecting or disconnecting any signal wires.

To connect signals to the TB-2725 terminal block, refer to Figure 1 while

performing the following steps:

1. Unscrew the top-cover screw, and remove the top cover.

2. Loosen the strain-relief screws, and remove the strain-relief bar.

3. Prepare the signal wire (16 AWG to 26 AWG) of the shielded cable by

stripping the insulation no more than 6.0 mm (0.24 in.).

4. Run the shielded cable through the strain-relief opening. If necessary,

add insulation or padding.

5. Insert the stripped ends of the signal wires into the terminals. Make

sure no bare wire extends from the terminal.

6. Connect the cable shield to the earth-ground lug.

7. Tighten the screws to a torque of 0.5 N · m to 0.6 N · m

(4.4 lb · in. to 5.3 lb · in.).

8. Reinstall the strain-relief bar, and tighten the strain-relief screws.

9. Reinstall the top cover, and tighten the top-cover screws.

10. Refer to the SCXI Quick Start Guide for TB-2725 installation

instructions.

TB-2725 Terminal Block Installation Guide 4 ni.com

Figure 1. TB-2725 Parts Locator Diagram

1 Chassis Screws

2 Strain-Relief Opening

3 Strain-Relief Bar

4 Signal Cables

5 Strain-Relief Screw

6 Top Cover

7 Top-Cover Screw

8 Rear Connector

9 Earth-Ground Lug

10 Screw Terminals

123456789 10 11 12 1314 15 16

60VDC

CATI

©National Instruments 5 TB-2725 Terminal Block Installation Guide

Specifications

All specifications are typical at 25 °C unless otherwise specified.

Electrical

Coupling................................................. DC1

Terminal-wire size ................................. 16 AWG to 26 AWG

Field-wiring connectors

Number of screw terminals............. 16

Earth-ground lugs ........................... 1

Strain relief ..................................... Strain relief at

terminal-block entrance

Mechanical

Dimensions............................................. 10.4 cm ×8.9 cm ×1.8 cm

(4.1 in. ×3.5 in. ×0.7 in.)

Weight.................................................... 285 g (10 oz)

Maximum Working Voltage

Maximum working voltage refers to the signal voltage plus the

common-mode voltage.

Channel-to-earth..................................... 42.4 Vpeak, 60 VDC,

Measurement Category I

Channel-to-channel ................................ 42.4 Vpeak, 60 VDC,

Measurement Category I

Caution Do not use the TB-2725 for connections to signals or for measurements within

Categories II, III, or IV.

Caution The protection provided by the TB-2725 can be impaired if it is used in a manner

not described in this document.

1 In instrumentation terminology, DC coupling means that both DC and AC signals are passed.

TB-2725 Terminal Block Installation Guide 6 ni.com

Environmental

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

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

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

Maximum altitude...................................2,000 meters

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

Indoor use only

Safety Standards

This product meets the requirements of the following standards of safety

for electrical equipment for measurement, control, and laboratory use:

• IEC 61010-1, EN 61010-1

• UL 61010-1, CSA 61010-1

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

Product Certification section.

Electromagnetic Compatibility

This product meets the requirements of the following EMC standards for

electrical equipment for measurement, control, and laboratory use:

• EN 61326-1 (IEC 61326-1): Class A emissions; Basic immunity

• EN 55011 (CISPR 11): Group 1, Class A emissions

• AS/NZS CISPR 11: Group 1, Class A emissions

• FCC 47 CFR Part 15B: Class A emissions

• ICES-001: Class A emissions

Note In the United States (per FCC 47 CFR), Class A equipment is intended for use

in commercial, light-industrial, and heavy-industrial locations. In Europe, Canada,

Australia and New Zealand (per CISPR 11) Class A equipment is intended for use only in

heavy-industrial locations.

Note Group 1 equipment (per CISPR 11) is any industrial, scientific, or medical

equipment that does not intentionally generates radio frequency energy for the treatment

of material or inspection/analysis purposes.

Note For EMC declarations and certifications, and additional information, refer to the

Online Product Certification section.

©National Instruments 7 TB-2725 Terminal Block Installation Guide

CE Compliance

This product meets the essential requirements of applicable European

Directives as follows:

• 2006/95/EC; Low-Voltage Directive (safety)

• 2004/108/EC; Electromagnetic Compatibility Directive (EMC)

Online Product Certification

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

regulatory compliance information. To obtain product certifications and

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.

Environmental Management

NI is committed to designing and manufacturing products in an

environmentally responsible manner. NI recognizes that eliminating

certain hazardous substances from our products is beneficial to the

environment and to NI customers.

For additional environmental information, refer to the NI and the

Environment Web page at ni.com/environment. This page contains the

environmental regulations and directives with which NI complies, as well

as other environmental information not included in this document.

Waste Electrical and Electronic Equipment (WEEE)

EU Customers At the end of the product life cycle, all products must be sent to a WEEE

recycling center. For more information about WEEE recycling centers, National

Instruments WEEE initiatives, and compliance with WEEE Directive 2002/96/EC on

Waste and Electronic Equipment, visit ni.com/environment/

weee.

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(For information about China RoHS compliance, go to ni.com/environment/rohs_china.)

LabVIEW, National Instruments, NI, ni.com, the National Instruments corporate logo, and the Eagle

logo are trademarks of National Instruments Corporation. Refer to the Trademark Information at

ni.com/trademarksfor other 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/technology, refer to the appropriate location: Help»Patents

in your software, the patents.txt file on your media, or the National Instruments Patent Notice

at ni.com/patents. Refer to the Export Compliance Information at ni.com/legal/

export-compliance for the National Instruments global trade compliance policy and how to

obtain relevant HTS codes, ECCNs, and other import/export data.

Where to Go for Support

The National Instruments Web site 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.

National Instruments corporate headquarters is located at

11500 North Mopac Expressway, Austin, Texas, 78759-3504.

National Instruments also has offices located around the world to help

address your support needs. For telephone support in the United States,

create your service request at ni.com/support and follow the calling

instructions or dial 512 795 8248. For telephone support outside the United

States, visit the Worldwide Offices section of ni.com/niglobal to access

the branch office Web sites, which provide up-to-date contact information,

support phone numbers, email addresses, and current events.

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