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SCC-CI20 Current Input Module User Guide

2

ni.com

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Italic text denotes variables, emphasis, a cross reference, or an introduction 
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Text in this font denotes text or characters that you should enter from the 
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programs, subprograms, subroutines, device names, functions, operations, 
variables, filenames, and extensions.

SC-2345

SC-2345 refers to both the SC-2345 connector block and configurable 
connector.

SCC

SCC refers to any SCC Series signal conditioning module.

What You Need to Get Started

To set up and use the SCC-CI20, you need the following items:

SC-2345/2350 with one of the following:

SCC-PWR01

SCC-PWR02 and the PS01 power supply

SCC-PWR03—requires a 7 to 42 VDC power supply 
(not included)

One or more SCC-CI20 modules

SC-2345/2350 User Manual

, available at 

ni.com

SCC-CI20 Current Input Module User Guide

SCC Quick Start Guide

, available at 

ni.com

Read Me First: Safety and Radio-Frequency Interference

SC-2345 Quick Reference Label

68-pin E Series DAQ device, documentation, and 68-pin cable

1/8 in. flathead screwdriver

Numbers 1 and 2 Phillips-head screwdrivers

Wire insulation strippers

NI-DAQ (current version) for Windows 2000/NT/XP/Me

Содержание SCC-CI20

Страница 1: ...ion 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 the product refer to the Read Me First ...

Страница 2: ...o both the SC 2345 connector block and configurable connector SCC SCC refers to any SCC Series signal conditioning module What You Need to Get Started To set up and use the SCC CI20 you need the following items SC 2345 2350 with one of the following SCC PWR01 SCC PWR02 and the PS01 power supply SCC PWR03 requires a 7 to 42 VDC power supply not included One or more SCC CI20 modules SC 2345 2350 Use...

Страница 3: ...o any socket J X 1 where X is 0 to 7 and connect the input signals to the module as described in the Connecting the Input Signals section If you use the SCC CI20 in a dual stage configuration you must use it as the first stage Plug the SCC CI20 into any socket J X 9 and plug the second stage SCC into socket J X 1 where X is 0 to 7 Connect the input signals to the SCC CI20 as described in the Conne...

Страница 4: ...acing the Input Resistors Incorrect connections can damage the input resistors and possibly other components of the module Spare 249 Ω resistors are available inside the SCC CI20 To open the SCC CI20 complete the following steps 1 Remove the screw from the back wide unlabeled side 2 Turn the front wide labeled side toward you 3 Place the screw terminal receptacle to the left 4 Slide the top cover ...

Страница 5: ...g the SC C120 when Scaling Voltage Measurements If you configured the SCC CI20 using Measurement Automation Explorer MAX and you are using NI DAQ the reading you get from the E Series DAQ device accounts for the voltage to current conversion and returns milliamps not volts Otherwise you must convert the raw voltage measurement to a current measurement To make this conversion use the following form...

Страница 6: ...e 0 05 Temperature coefficient of resistance 10 ppm C Maximum power dissipation 0 25 W Maximum input current 32 mA Output range 0 to 5 V Output slew rate 0 75 V µs min Gain error 0 1 max1 Temperature stability of gain error 0 006 C max Offset error 0 6 mV max1 Temperature stability of offset error 21 µV C max Dynamic Response Bandwidth 3 dB amplitude 4 mA 10 kHz Output slew rate 0 75 V µs min 1 Te...

Страница 7: ... O connectors One 20 pin right angle male connector one 4 pin screw terminal Wire gauge range 28 to 16 AWG Maximum Working Voltage Maximum working voltage refers to the signal voltage I 249 Ω plus the common mode voltage Channel to earth 15 V Installation Category I Channel to channel 15 V Installation Category I Environmental Operating temperature 0 to 50 C Storage temperature 20 to 70 C Humidity...

Страница 8: ... Emissions EN 55011 Class A at 10 m FCC Part 15A above 1 GHz Immunity EN 61326 1997 A2 2001 Table 1 CE C Tick and FCC Part 15 Class A Compliant Note For EMC compliance operate this device with shielded cabling 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 Comp...

Страница 9: ...nnels of the E Series DAQ device AI GND is the analog input ground signal and is the reference for AI X and AI X 8 A GND is the reference for the 15V supplies AI GND and A GND connect to the SC 2345 at the SCC PWR connector Pins 17 to 20 accept signals from a first stage module if you are cascading two modules 1 Pin 1 2 Pin 2 3 PWB Key 4 Pin 19 5 Pin 20 Table 1 SCC CI20 Pin Signal Assignments Pin ...

Страница 10: ...uments products refer to the appropriate location Help Patents in your software the patents txt file on your CD or ni com patents 2001 2004 National Instruments Corp All rights reserved 371068B 01 Mar04 371068B 01 9 10 11 E Series A GND 12 13 15 V 14 15 V 15 16 17 AI X from first stage 18 AI X 8 from first stage 19 AI X from first stage 20 AI X 8 from first stage Table 1 SCC CI20 Pin Signal Assign...

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