National Instruments 9478 Getting Started Manual
National Instruments 9478 Getting Started Manual

National Instruments 9478 Getting Started Manual

16 do, 0 v to 50 v, sinking, 50 us

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NI NI 9478
16-Channel C Series Digital Output Module
A l l t r a d e m a r k s , b r a n d n a m e s , a n d b r a n d s a p p e a r i n g h e r e i n a r e t h e p r o p e r t y o f t h e i r r e s p e c t i v e o w n e r s .
• C r i t i c a l a n d e x p e d i t e d s e r v i c e s
• I n s t o c k / R e a d y - t o - s h i p
Artisan Scientific Corporation dba Artisan Technology Group is not an affiliate, representative, or authorized distributor for any manufacturer listed herein.
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https://www.artisantg.com/96746-1
• We b u y y o u r e x c e s s , u n d e r u t i l i z e d , a n d i d l e e q u i p me n t
• F u l l - s e r v i c e , i n d e p e n d e n t r e p a i r c e n t e r

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Summary of Contents for National Instruments 9478

  • Page 1 NI NI 9478 16-Channel C Series Digital Output Module In Stock New From Surplus Stock Open Web Page https://www.artisantg.com/96746-1 A l l t r a d e m a r k s , b r a n d n a m e s , a n d b r a n d s a p p e a r i n g h e r e i n a r e t h e p r o p e r t y o f t h e i r r e s p e c t i v e o w n e r s .
  • Page 2 GETTING STARTED GUIDE NI 9478 16 DO, 0 V to 50 V, Sinking, 50 μs hnology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www...
  • Page 3: Safety Guidelines

    This document explains how to connect to the NI 9478. Before you begin, complete the software and Note hardware installation procedures in your chassis documentation. The guidelines in this document are specific to Note the NI 9478. The other components in the system might not meet the same safety ratings.
  • Page 4: Safety Voltages

    Such voltage measurements include signal levels, special equipment, limited-energy parts of equipment, circuits powered by regulated low-voltage sources, and electronics. NI 9478 Getting Started Guide | © National Instruments | 3 hnology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www...
  • Page 5: Safety Guidelines For Hazardous Locations

    CAT III, or CAT IV. Safety Guidelines for Hazardous Locations The NI 9478 is suitable for use in Class I, Division 2, Groups A, B, C, D, T4 hazardous locations; Class I, Zone 2, AEx nA IIC T4 and Ex nA IIC T4 hazardous locations; and nonhazardous locations only.
  • Page 6: Special Conditions For Hazardous Locations Use In Europe And Internationally

    II 3G and is suitable for use in Zone 2 hazardous locations, in ambient temperatures of -40 °C ≤ Ta ≤ 70 °C. If you are using the NI 9478 NI 9478 Getting Started Guide | © National Instruments | 5...
  • Page 7: Electromagnetic Compatibility Guidelines

    This product was tested and complies with the regulatory requirements and limits for electromagnetic compatibility (EMC) stated in the product specifications. These requirements and 6 | ni.com | NI 9478 Getting Started Guide hnology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www...
  • Page 8: Special Conditions For Marine Applications

    LR certificate, or look for the Lloyd’s Register mark on the product. NI 9478 Getting Started Guide | © National Instruments | 7 hnology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www...
  • Page 9: Preparing The Environment

    EMC performance is attained. Preparing the Environment Ensure that the environment in which you are using the NI 9478 meets the following specifications. Operating temperature -40 °C to 70 °C...
  • Page 10 Refer to the device datasheet on ni.com/manuals Note for complete specifications. NI 9478 Getting Started Guide | © National Instruments | 9 hnology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www...
  • Page 11 NI 9478 Pinout Vsup Vsup Vsup Vsup DO10 DO11 DO12 DO13 DO14 DO15 10 | ni.com | NI 9478 Getting Started Guide hnology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www...
  • Page 12: Connecting Digital Devices

    Connecting Digital Devices You can connect a variety of industrial devices, such as solenoids, motors, actuators, relays, and lamps to the NI 9478. You must connect an external power supply to the NI 9478. The power supply provides the current for the output channels.
  • Page 13 Vsup and COM pins is powered on. Ensure that the devices you connect to the NI 9478 are compatible with the output specifications of the NI 9478. Refer to the device datasheet at ni.com/manuals...
  • Page 14: Protecting The Digital Outputs From Flyback Voltages

    The inductance of the cabling stores energy when a channel is on and driving current. When a channel turns off, energy in the NI 9478 Getting Started Guide | © National Instruments | 13 hnology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www...
  • Page 15 NI 9478. The heat dissipated increases with higher switching frequencies, higher currents, and longer cables. Reducing Cable Length The effective cable length is the total distance from DO to COM.
  • Page 16: Overcurrent Protection

    Figure 4. Cable Length of the NI 9478 with a Capacitor and Diode Vsup Load Cable Clamp External Power – Supply Cable Length NI 9478 NI recommends that you use a capacitor with a Note capacitance of at least 20 µF.
  • Page 17: Safe Operating Conditions

    You can review the output status in software to determine if the current has exceeded the limit threshold. You can configure each channel on the NI 9478 to disable the output that exceeds the current limit threshold. Some applications require a large inrush current that may exceed the current limit threshold.
  • Page 18 NI recommends using 2 meters of cable for safe operating conditions. Higher currents, higher frequencies, and longer cables contribute to increased heat in the NI 9478. Refer to the device datasheet at ni.com/manuals for safe operating conditions.
  • Page 19: Example One

    + 0.04 % 1.25 + 1 20 = 14.8 % Example Two The NI 9478 is on and passing 3 A of current through 2.0 meters of cable for 0.25 seconds. The channel passes 1.25 A of current at 20 kHz for 1.25 seconds. The channel then drives the load off for 4 seconds.
  • Page 20 36 % 0.25� + 14.8 % 1.25� + 0 % 4� Figure 7. Example Equation Two = 5 % 5.5� NI 9478 Getting Started Guide | © National Instruments | 19 hnology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www...
  • Page 21: Where To Go Next

    LabVIEW Help RELATED INFORMATION C Series Documentation Services & Resources ni.com/services ni.com/info cseriesdoc Located at ni.com/manuals Installs with the software 20 | ni.com | NI 9478 Getting Started Guide hnology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www...
  • Page 22: Worldwide Support And Services

    If your product supports calibration, you can obtain the calibration certificate for your product at ni.com/calibration. NI 9478 Getting Started Guide | © National Instruments | 21 hnology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www...
  • Page 23 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. © 2007—2016 National Instruments. All rights reserved. 374612E-01 Jan16...

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