National Instruments SbRIO-9220 Manual de usuario

GETTING STARTED GUIDE

sbRIO-9220

Non-Enclosed, ±10 V, 100 kS/s/ch, 16-Bit, Simultaneous Input,

16-Channel C Series Voltage Input Module

This document explains how to connect to the sbRIO-9220.

Note Before you begin, read the sbRIO-9220 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 sbRIO-9220. 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.

Notice Electrostatic Discharge (ESD) can damage the sbRIO-9220. To prevent

damage, use industry-standard ESD prevention measures during installation,

maintenance, and operation.

sbRIO-9220 Pinout

AI0+

AI1+

AI3+

AI5+

AI7+

AI9+

AI11+

AI13+

AI15+

COM

AI2+

AI4+

AI6+

AI8+

AI10+

AI12+

AI14+

COM

AI1-

AI0-

AI2-

AI4-

AI6-

AI8-

AI10-

AI12-

AI14-

COM

AI3-

AI5-

AI7-

AI9-

AI11-

AI13-

AI15-

COM

2| ni.com | sbRIO-9220 Getting Started Guide

Table 1. Signal Descriptions

Signal Description

AI+ Positive analog input signal connection

AI- Negative analog input signal connection

COM Common reference connection to isolated ground

sbRIO-9220 Block Diagram

Input signals on each channel are buffered, conditioned, and then sampled by an ADC.

Each AI channel provides an independent signal path and ADC, enabling you to sample

all channels simultaneously.

COM

AI0+

AI0–

sbRIO-9220

16-Bit Isolated

SAR ADC

Overvoltage Protection

–

AI15+

AI15–

16-Bit Isolated

SAR ADC

Overvoltage Protection

–

sbRIO-9220 Getting Started Guide | © National Instruments Corporation | 3

Grounded Differential Connections

Voltage

Source

–

AI+

AI–

COM

sbRIO-9220

Floating Differential Connections

sbRIO-9220

AI+

AI–

COM

Voltage

Source

1 MΩ

Resistor

–

Connect the negative lead to COM through a 1 MΩ resistor to keep the signal source

within the common-mode voltage range. The sbRIO-9220 does not read data accurately if

the signal source is outside of the common-mode voltage range.

4| ni.com | sbRIO-9220 Getting Started Guide

Single-Ended Connections

–

AI+

AI–

COM

Voltage

Source

sbRIO-9220

Connect the ground signal to COM to keep the signal source within the common-mode

voltage range.

Connection Guidelines

• Make sure that devices you connect to the sbRIO-9220 are compatible with the

module specifications.

• You must use 2-wire ferrules to create a secure connection when connecting more than

one wire to a single terminal.

• Push the wire into the terminal when using a solid wire or a stranded wire with a

ferrule.

• Open the terminal by pressing the push button when using stranded wire without a

ferrule.

NI Services

Visit ni.com/support to find support resources including documentation, downloads, and

troubleshooting and application development self-help such as tutorials and examples.

Visit ni.com/services to learn about NI service offerings such as calibration options,

repair, and replacement.

Visit ni.com/register to register your NI product. Product registration facilitates technical

support and ensures that you receive important information updates from NI.

sbRIO-9220 Getting Started Guide | © National Instruments Corporation | 5

NI corporate headquarters is located at 11500 N Mopac Expwy, Austin, TX, 78759-3504,

USA.

Information is subject to change without notice. Refer to the NI Trademarks and

Logo Guidelines at ni.com/trademarks for 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 Patent 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.

378510A-01 February 8, 2021

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