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Summary of Contents for National Instruments NI 9426
- Page 1 OPERATING INSTRUCTIONS AND SPECIFICATIONS NI 9426 32-Channel, 24 V, Sourcing Digital Input Module Français Deutsch ni.com/manuals...
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Page 2: Safety Guidelines
This document describes how to use the National Instruments 9426 and includes specifications and pin assignments for the NI 9426. Visit ni.com/info which software you need for the modules you are using. For information about installing, configuring, and programming the system, refer to the system documentation. -
Page 3: Safety Guidelines For Hazardous Voltages
Safety Guidelines for Hazardous Locations The NI 9426 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 © National Instruments Corp. - Page 4 Ex nA IIC T4 hazardous locations; and nonhazardous locations only. Follow these guidelines if you are installing the NI 9426 in a potentially explosive environment. Not following these guidelines may result in serious injury or death. Do not disconnect I/O-side wires or connectors...
- Page 5 II 3G and is suitable for use in Zone 2 hazardous locations. If you are using the NI 9426 in Gas Group IIC hazardous locations or in ambient temperatures of –40 °C ≤ Ta ≤ 70 °C, you must use the device in an NI chassis that has been evaluated as EEx nC IIC T4, Ex nA IIC T4, or Ex nL IIC T4 equipment.
- Page 6 Connecting the NI 9426 The NI 9426 has a 37-pin DSUB connector that provides connections for 32 simultaneously-sampled digital input channels. Figure 1. NI 9426 Pin Assignments NI 9426 Operating Instructions and Specifications DI16 DI17 DI18 DI19 DI20 DI21 DI22...
- Page 7 . An example of a sinking-output device is an open collector NPN. Connect the sinking-output device to the DI pin of the NI 9426. Connect the positive power supply lead of the external device to the pin. Refer to Figure 2 for an illustration of connecting a device to the NI 9426.
- Page 8 External Power Supply Figure 2. Connecting a Device to the NI 9426 (Three-Wire Device Shown) The NI 9426 channel registers as ON when the sinking-output device drives the input below V The channel registers as OFF when the device does not drive the input low and is in the input OFF range.
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Page 9: Sleep Mode
The following specifications are typical for the range –40 to 70 °C unless otherwise noted. All voltages are relative to V unless otherwise noted. Input Characteristics Number of channels... 32 digital input channels © National Instruments Corp. NI 9426 Operating Instructions and Specifications... - Page 10 Input impedance... 30 kΩ ±5% I/O protection (V Input voltage... 30 V max Reverse-biased voltage ... –30 V max is the external power supply voltage. NI 9426 Operating Instructions and Specifications ... ≥ (V ... ≤ (V -to-channel) – 5 V) –...
- Page 11 The update/transfer time is valid when the module is used in a CompactRIO system. When used in other systems, driver software and system latencies impact this time. © National Instruments Corp..7 μs max Bellcore Issue 2, Method 1, Case 3, Limited Part Stress Method NI 9426 Operating Instructions and Specifications...
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Page 12: Power Requirements
Weight... 147 g (5.2 oz) Safety Safety Voltages Connect only voltages that are within the following limits. -to-channel ... 30 VDC max The external power supply may power the module during sleep mode. NI 9426 Operating Instructions and Specifications ni.com... - Page 13 Such voltage measurements include signal levels, special equipment, limited-energy parts of equipment, circuits powered by regulated low-voltage sources, and electronics. Do not connect the NI 9426 to signals or use for Caution measurements within Measurement Categories II, III, or IV.
- Page 14 Hazardous Locations U.S. (UL) ... Class I, Division 2, Canada (C-UL) ... Class I, Division 2, Europe (DEMKO)... Ex nA IIC T4 NI 9426 Operating Instructions and Specifications ni.com/certification Groups A, B, C, D, T4; Class I, Zone 2, AEx nA IIC T4 Groups A, B, C, D, T4;...
- Page 15 Environmental National Instruments C Series modules are intended for indoor use only but may be used outdoors if installed in a suitable enclosure. Refer to the manual for the chassis you are using for more information about meeting these specifications.
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Page 16: Shock And Vibration
CE, C-Tick, ICES, and FCC Part 15 Emissions; Class A For EMC compliance, operate this device with Note shielded cabling. NI 9426 Operating Instructions and Specifications , 10 to 500 Hz 50 g, 3 ms half sine, 18 shocks at 6 orientations... -
Page 17: Environmental Management
Certification column. Environmental Management National Instruments is committed to designing and manufacturing products in an environmentally responsible manner. NI recognizes that eliminating certain hazardous substances from our products is beneficial not only to the environment but also to NI customers. - Page 18 WEEE recycling centers and National Instruments WEEE initiatives, visit environment/weee.htm National Instruments ni.com/environment/rohs_china about China RoHS compliance, go to environment/rohs_china NI 9426 Operating Instructions and Specifications ni.com/environment At the end of their life cycle, all products National Instruments RoHS . This page ni.com/...
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Page 19: Where To Go For Support
Where to Go for Support The National Instruments Web site is your complete resource for technical support. At you have access to ni.com/support everything from troubleshooting and application development self-help resources to email and phone assistance from NI Application Engineers. - Page 20 Turkey 90 212 279 3031, United Kingdom 44 (0) 1635 523545 National Instruments, NI, ni.com, and LabVIEW are trademarks of National Instruments Corporation. Refer to the Terms of Use section on ni.com/legal for more information about National Instruments trademarks. Other product and company names mentioned herein are trademarks or trade names of their respective companies.
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