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Overview

This document explains how to connect to the NI-9472. In this document, the

NI-9472 with screw terminal, NI-9472 with spring terminal, and NI-9472 with DSUB

are referred to inclusively as the NI-9472.

Note

 Before you begin, read the NI-9472 Safety, Environmental, and

Regulatory Information document on 

ni.com/manuals

 and complete the

software and hardware installation procedures in your chassis

documentation.

Note

 The guidelines in this document are specific to the NI-9472. The

other components in the system might not meet the same safety ratings.

Refer to the documentation for each component in the system to

determine the safety and EMC ratings for the entire system.

Safety Guidelines

Caution

 Observe all instructions and cautions in the user documentation.

Using the product in a manner not specified can damage the product and

compromise the built-in safety protection.

Attention

 Suivez toutes les instructions et respectez toutes les mises

en garde de la documentation d'utilisation. L'utilisation du produit de

toute autre façon que celle spécifiée risque de l'endommager et de

compromettre la protection de sécurité intégrée.

NI-9472 with Screw Terminal and Spring Terminal Safety Voltages

Connect only voltages that are within the following limits.

Channel-to-COM

30 VDC maximum

© National Instruments

3

NI-9472 Getting Started

Содержание NI 9472

Страница 1: ...NI 9472 Getting Started 2022 07 06...

Страница 2: ...ic Compatibility Guidelines 8 Special Conditions for Marine Applications 8 Preparing the Environment 9 NI 9472 Pinout 9 Connecting Digital Devices 10 Increasing Current Drive 11 High Vibration Applica...

Страница 3: ...cumentation for each component in the system to determine the safety and EMC ratings for the entire system Safety Guidelines Caution Observe all instructions and cautions in the user documentation Usi...

Страница 4: ...ans ces cat gories Measurement Category II is for measurements performed on circuits directly connected to the electrical distribution system This category refers to local level electrical distributio...

Страница 5: ...r damage to the insulation An analysis of the working voltages loop impedances temporary overvoltages and transient overvoltages in the system must be conducted prior to making measurements Mise en ga...

Страница 6: ...nded for direct connection to the MAINS building installations of Measurement Categories CAT II CAT III or CAT IV Safety Guidelines for Hazardous Voltages You can connect hazardous voltages only to th...

Страница 7: ...move modules unless power has been switched off or the area is known to be nonhazardous Caution Substitution of components may impair suitability for Class I Division 2 or Zone 2 Caution The system mu...

Страница 8: ...EMC stated in the product specifications These requirements and limits provide reasonable protection against harmful interference when the product is operated in the intended operational electromagne...

Страница 9: ...ports In addition take precautions when designing selecting and installing measurement probes and cables to ensure that the desired EMC performance is attained Preparing the Environment Ensure that t...

Страница 10: ...472 with spring terminal Signal Description COM Common reference connection to isolated ground DO Digital output signal connection Vsup Voltage supply connection Table 1 NI 9472 Signal Descriptions LE...

Страница 11: ...at ni com manuals for output specifications Note When the industrial device is off DO is not connected to COM For large source impedances you must use a pull down resistor between DO and COM Go to ni...

Страница 12: ...h the NI 9472 with spring terminal I O Protection The NI 9472 provides short circuit protection Each channel has circuitry that protects it from current surges resulting from short circuits over 14 A...

Страница 13: ...ate measure the voltage between DO and Vsup If the voltage is equal to the voltage of the external power supply connected to the module the channel is in an overcurrent state Resetting Channels after...

Страница 14: ...stration facilitates technical support and ensures that you receive important information updates from NI NI corporate headquarters is located at 11500 N Mopac Expwy Austin TX 78759 3504 USA ni com 14...

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