National Instruments SCC-CTR01 Скачать руководство пользователя страница 1

USER GUIDE AND SPECIFICATIONS

NI SCC-CTR01 Isolated 
Counter/Timer I/O Module

The NI SCC-CTR01 is a two input and one output isolation module for 
general-purpose counter/timers on DAQ devices. The gate and source 
inputs are optically isolated to allow an increased voltage range and protect 
against common-mode voltages. The inputs also have reverse and 
overvoltage protection. The output channel is isolated and has advanced 
short-circuit protection, which allows the circuit to recover automatically 
250 ms after a short is removed.

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 

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 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: Safety and Radio-Frequency 

Interference

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

This icon denotes a note, which alerts you to important information.

When symbol is marked on a product, it denotes a warning advising you to 
take precautions to avoid electrical shock.

When 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 in software, such as menu 
items and dialog box options. Bold text also denotes parameter names.

Содержание SCC-CTR01

Страница 1: ...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 caution which advises you of prec...

Страница 2: ...C 2345 connector block and the NI SC 2345 with configurable connectors SCC SCC refers to any SCC Series signal conditioning module What You Need to Get Started To set up and use the NI SCC CTR01 you n...

Страница 3: ...All Programs National Instruments NI DAQ DAQ Getting Started Guide The NI DAQ Readme lists which devices are supported by this version of NI DAQ Select Start All Programs National Instruments NI DAQ...

Страница 4: ...s and tools Refer to the following locations on the Contents tab of the LabVIEW Help for information about NI DAQmx Getting Started Getting Started with DAQ Includes overview information and a tutoria...

Страница 5: ...select Measurement Studio NI Measurement Studio Help To create an application in Visual C Visual C or Visual Basic NET follow these general steps 1 In Visual Studio NET select File New Project to laun...

Страница 6: ...he Filtered By drop down list and follow the previous instructions Device Documentation and Specifications NI DAQmx includes the Device Document Browser which contains online documentation for support...

Страница 7: ...re Device Specific Information Note For general SCC module installation and signal connection information and information about the NI SC 2345 carrier refer to the SCC Quick Start Guide available for...

Страница 8: ...gnals Figure 1 illustrates a single isolated input Figure 1 Single Isolated Input Inputs are referenced to either the ground or supply of the external device depending on whether or not the external d...

Страница 9: ...connect the NI SCC CTR01 as referenced to ground and as referenced to the supply Connecting the NI SCC CTR01 as Referenced to Ground Connect the external device to the SRC or GATE pin and connect the...

Страница 10: ...TTL devices reference the NI SCC CTR01 to the supply as shown in Figure 3 Note When placing a relatively slow rise time signal such as a 5 V peak sine or triangle wave on one of the inputs and a fast...

Страница 11: ...in the Specifications section If the amount of current the MOSFET conducts exceeds a certain level 800 mA typical such as when a short occurs in the load the MOSFET turns off for 250 ms to protect it...

Страница 12: ...switch the MOSFET to OFF Driving Inductive Loads Caution When the output of the NI SCC CTR01 is used to drive an inductive load high voltages will appear suddenly because of the current switching thr...

Страница 13: ...the NI SCC CTR01 and other equipment In addition the NI SCC CTR01 is equipped with overvoltage protection and can handle continuous voltages between the and input terminals up to 60 VDC Frequencies o...

Страница 14: ...if the output current exceeds a certain limit 800 mA typical 1 1 A max The NI SCC CTR01 tries to reoperate every 250 ms and automatically recovers after the short is removed Reverse and Overvoltage Pr...

Страница 15: ...by the following equation for a positive pulse in positive logic Example If using typical LOW to HIGH and HIGH to LOW propagation delays relays 180 ns and 150 ns and the actual measured pulse width is...

Страница 16: ...nce to either supply or ground two terminals per input Maximum input frequency 400 kHz Minimum input pulse width 1 s Input to input input to output and input to PC ground isolation 60 VDC continuous v...

Страница 17: ...e switch Output power requirement 5 to 48 VDC 10 mA per channel typical at 400 kHz Load voltage range 5 to 48 VDC Switching current 100 mA max Inrush current 600 mA max Maximum output frequency 400 kH...

Страница 18: ...male connector one 7 pin screw terminal Field wiring diameter 28 to 16 AWG Environmental Operating temperature 0 to 50 C Storage temperature 20 to 70 C Humidity 10 to 90 RH noncondensing Maximum altit...

Страница 19: ...by model number or product line and click the appropriate link in the Certification column Environmental Management National Instruments is committed to designing and manufacturing products in an env...

Страница 20: ...de and Specifications 20 ni com NI SCC SCTRO1 Module Pin Assignments Figure 6 shows the I O connector on the bottom of the NI SCC CTR01 Figure 6 SCC Module Bottom View 1 Pin 1 2 Pin 2 3 PWB Key 4 Pin...

Страница 21: ...s products refer to the appropriate location Help Patents in your software the patents txt file on your CD or ni com patents 2005 2007 National Instruments Corporation All rights reserved 371673B 01 D...

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