GETTING STARTED GUIDE

NI 94705 V DC to 30 V DC, 8-Channel (SourcingOutput), 2 kHz C Series Digital Module

This document explains how to connect to the NI 9470.

Note Before you begin, read the NI 9470 Safety,Environmental, and Regulatory Information documenton ni.com/manuals and complete the software andhardware installation procedures in your chassisdocumentation.

Note The guidelines in this document are specific tothe NI 9470. The other components in the system mightnot meet the same safety ratings. Refer to thedocumentation for each component in the system todetermine the safety and EMC ratings for the entiresystem.

Related DocumentationFor more information about the NI 9470, read the followingdocuments on ni.com/manuals.• NI 9470 Safety, Environmental, and Regulatory Information• NI 9470 Datasheet

2 | ni.com | NI 9470 Getting Started Guide

Cables and AccessoriesThe following table lists some cables and accessories that arecompatible with the NI 9470. For a complete list of accessoriesand ordering information, refer to the pricing section of theNI 9470 product page on ni.com.

Table 1. NI 9470 Cables and Accessories

Cable/Accessory Part Number

1 M Cable 132410A-01

2 M Cable 132410A-02

5 M Cable 132410A-05

If you would like to build your own cables for the NI 9470, youwill need to purchase the following crimp tools or theirequivalents. Refer to the manufacturer's documentation on molex.com for more information on building your own cables.

NI 9470 Getting Started Guide | © National Instruments | 3

Table 2. Crimp Tools for Building Your Own Cables

Description Molex PartNumber

Supported WireAWG

Hand Crimp Tool for Ultra-Fit Tangless CrimpTerminals, 20-22 AWG(UL1061) Wire

2002184700 22 AWG to 20 AWG

Hand Crimp Tool for Ultra-Fit Tang-less CrimpTerminals, 16-18 AWG(UL1061) Wires

2002184600 18 AWG to 16 AWG

In addition to the provided connector housings, you will need thefollowing parts for each cable. The Ultra-Fit housing leaves thecrimps exposed at the rear of the housing. NI recommendsinsulating the back of the connector with 25 mm (1.0 in.)diameter heat shrink.

4 | ni.com | NI 9470 Getting Started Guide

Table 3. Parts for Building Your Own Cables

Description Molex PartNumber

Support WireAWG

Quantity

Ultra-Fit TanglessCrimp Terminal,Female, 0.76µm Gold(Au) Plating, 20-22AWG

1722536112 22 AWG to 20AWG

16

Ultra-Fit TanglessCrimp Terminal,Female, 0.76µm Gold(Au) Plating, 16-18AWG

1722536012 18 AWG to 16AWG

16

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NI 9470 Pinout

COMVsup0

Vsup1

Vsup2

Vsup3

Vsup4

Vsup5

Vsup6

Vsup7

COM

COM

COM

COM

COM

COM

COM

DO0–DO0+

DO1+

DO2+

DO3+

DO4+

DO5+

DO6+

DO7+

DO1–

DO2–

DO3–

DO4–

DO5–

DO6–

DO7–

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

6 | ni.com | NI 9470 Getting Started Guide

Table 4. Signal Descriptions

Signal Description

COM Common reference connection for the power supply

DO- Digital output return (negative) connection

DO+ Digital output source (positive) connection

Vsup DC voltage power supply connection

NI 9470 Block Diagram

NI 9470 Getting Started Guide | © National Instruments | 7

NI 9470

+

_DO–

DO+

Vsup

COM

ExternalPowerSupply

Device

AmpADC

Connecting the NI 9470You can connect a variety of industrial devices, such as solenoids,valves, motors, actuators, relays, and lamps to the NI 9470.

Connect the device between the DO+ and DO- pins, and connectthe external power supply. Use cables 20 m or shorter forconnections from DO- and DO+ to the load.

8 | ni.com | NI 9470 Getting Started Guide

Connecting an External Power Supply to theNI 9470You must connect an external power supply to each activechannel of the NI 9470. The power supplies provide the currentfor the output channels. Each channel has its own Vsup and COMpin, and all COM pins are connected internally in the NI 9470.

Caution Do not install or remove C Series modulesfrom your system if any external power suppliesconnected to the Vsup and COM pins are powered on.

Attention Ne pas installer ou retirer les modules de laSérie C de votre système si une alimentation externeconnectée aux broches Vsup et COM est sous tension.

Complete the following steps to connect an external powersupply to the NI 9470. Use cables 10 m or shorter for connectionsfrom Vsup to COM to the supply to reduce voltage noise andripple. For lengths longer than 10 m, NI recommends placing

NI 9470 Getting Started Guide | © National Instruments | 9

more than 2,200 µF of bulk capacitance close to the NI 9470module.1. Connect the positive lead of the power supply to Vsup.2. Connect the negative lead of the power supply to COM.

I/O ProtectionEach DO+ channel of the NI 9470 has short-circuit protection.Each Vsup terminal has reverse polarity protection.

Notice Voltages greater than the supply voltage andnegative voltage conditions on DO+ can damage theNI 9470.

Notice The DO- terminal is not protected againstovervoltage conditions.

Note Refer to the NI 9470 Datasheet on ni.com/manuals for maximum continuous output current,short-circuit behavior, and short-circuit trip timespecifications.

10 | ni.com | NI 9470 Getting Started Guide

Product Certifications and DeclarationsRefer to the product Declaration of Conformity (DoC) foradditional regulatory compliance information. To obtain productcertifications and the DoC for NI products, visit ni.com/product-certifications, search by model number, and click the appropriatelink.

NI 9470 Getting Started Guide | © National Instruments | 11

Where to Go Next

CompactRIO CompactDAQ

RELATED INFORMATION

C Series Documentation& Resourcesni.com/info cseriesdoc

Servicesni.com/services

NI 9470 Datasheet

NI-RIO Help

LabVIEW FPGA Help

NI 9470 Datasheet

NI-DAQmx Help

LabVIEW Help

Installs with the softwareLocated at ni.com/manuals

12 | ni.com | NI 9470 Getting Started Guide

Worldwide Support and ServicesThe NI website is your complete resource for technical support.At ni.com/support, you have access to everything fromtroubleshooting and application development self-help resourcesto email and phone assistance from NI Application Engineers.

Visit ni.com/services for information about the services NI offers.

Visit ni.com/register to register your NI product. Productregistration facilitates technical support and ensures that youreceive important information updates from NI.

NI corporate headquarters is located at11500 North Mopac Expressway, Austin, Texas, 78759-3504. NIalso has offices located around the world. For support in theUnited States, create your service request at ni.com/support ordial 1 866 ASK MYNI (275 6964). For support outside theUnited States, visit the Worldwide Offices section of ni.com/niglobal to access the branch office websites, which provide up-to-date contact information.

NI 9470 Getting Started Guide | © National Instruments | 13

Information is subject to change without notice. Refer to the NI Trademarks and Logo Guidelinesat ni.com/trademarks for information on NI trademarks. Other product and company namesmentioned herein are trademarks or trade names of their respective companies. For patentscovering NI 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. You can find information about end-user license agreements (EULAs) and third-partylegal notices in the readme file for your NI product. Refer to the Export Compliance Information atni.com/legal/export-compliance for the NI global trade compliance policy and how to obtainrelevant HTS codes, ECCNs, and other import/export data. NI MAKES NO EXPRESS ORIMPLIED WARRANTIES AS TO THE ACCURACY OF THE INFORMATION CONTAINEDHEREIN AND SHALL NOT BE LIABLE FOR ANY ERRORS. U.S. Government Customers: Thedata contained in this manual was developed at private expense and is subject to the applicablelimited rights and restricted data rights as set forth in FAR 52.227-14, DFAR 252.227-7014, andDFAR 252.227-7015.

© 2019 National Instruments. All rights reserved.

378182A-01 December 11, 2019