National Instruments NI 9423 User Manual Download

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OPERATING INSTRUCTIONS AND SPECIFICATIONS

NI 9421/9423

8-Channel Sinking Digital Input Modules

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Summary of Contents for NI 9423

Page 1: ...OPERATING INSTRUCTIONS AND SPECIFICATIONS NI 9421 9423 8 Channel Sinking Digital Input Modules ni com manuals Deutsch Fran ais...

Page 2: ...les you are using For information about installing configuring and programming the system refer to the system documentation Visit ni com info and enter cseriesdoc for information about C Series docume...

Page 3: ...hazardous voltages to the NI 9421 9423 with screw terminal only Do not connect hazardous voltages to the NI 9421 with DSUB If hazardous voltages are connected to the module take the following precauti...

Page 4: ...voltage LIVE 42 4 Vpk 60 VDC you must ensure that devices and circuits connected to the module are properly insulated from human contact You must use the NI 9932 connector backshell kit to ensure that...

Page 5: ...itable for use in Class I Division 2 Groups A B C D T4 hazardous locations Class I Zone 2 AEx nC IIC T4 and Ex nC IIC T4 hazardous locations and nonhazardous locations only Follow these guidelines if...

Page 6: ...sion 2 Caution For Zone 2 applications install the system in an enclosure rated to at least IP 54 as defined by IEC 60529 and EN 60529 Caution For Zone 2 applications connected signals must be within...

Page 7: ...ations To verify Lloyd s Register certification visit ni com certification and search for the LR certificate or look for the Lloyd s Register mark on the module Caution To meet radio frequency emissio...

Page 8: ...tal input channels Figure 2 NI 9421 9423 Terminal and Pin Assignments DI0 DI1 DI2 DI3 DI4 DI5 DI6 DI7 NC COM 0 3 4 7 0 1 2 3 4 5 6 7 8 9 COM NC COM COM NC COM COM NC COM COM NC COM COM DI0 NC DI1 DI2...

Page 9: ...eate a secure connection when connecting more than one wire to a single terminal on the NI 9421 9423 with screw terminal The NI 9421 9423 has sinking inputs meaning that when the external device drive...

Page 10: ...1 9423 Connect the common of the external device to the COM terminal or pin Refer to Figure 3 for an illustration of connecting a device to the NI 9421 9423 Figure 3 Connecting a Device to the NI 9421...

Page 11: ...at is in the input OFF range to DI If no device is connected to DI the channel registers as OFF Refer to the Specifications section for more information about the ON and OFF states Each channel has an...

Page 12: ...ments recommends that you either use ferrules to terminate wires to the detachable screw terminal connector or use the NI 9932 backshell kit to protect the connections Refer to Figure 4 for an illustr...

Page 13: ...he chassis supports sleep mode refer to the software help for information about enabling sleep mode Visit ni com info and enter cseriesdoc for information about C Series documentation Typically when a...

Page 14: ...ame for the NI 9421 and the NI 9423 unless otherwise noted All voltages are relative to COM unless otherwise noted Input Characteristics Number of channels 8 digital input channels Input type Sinking...

Page 15: ...x NI 9423 35 V max Reverse biased voltage 30 V max Input current NI 9421 7 mA max internally limited NI 9423 8 5 mA max internally limited Input delay time NI 9421 100 s max NI 9423 1 s max MTBF NI 94...

Page 16: ...specifications at other temperatures or for MIL HDBK 217F specifications NI 9421 Power Requirements Power consumption from chassis Active mode 240 mW max Sleep mode 7 mW max Thermal dissipation at 70...

Page 17: ...e it with a dry towel Note For two dimensional drawings and three dimensional models of the C Series module and connectors visit ni com dimensions and search by module number Screw terminal wiring 12...

Page 18: ...the following limits Channel to COM 30 V max Isolation Channel to channel None Channel to earth ground Continuous 250 Vrms Measurement Category II Withstand 2 300Vrms verified by a 5 s dielectric with...

Page 19: ...Connect only voltages that are within the following limits Channel to COM 30 V max Isolation Channel to channel None Channel to earth ground Continuous 60 VDC Measurement Category I Withstand 1 000 V...

Page 20: ...ment circuits powered by regulated low voltage sources and electronics Note Do not connect the NI 9421 with DSUB to signals or use for measurements within Measurement Categories II III or IV Hazardous...

Page 21: ...r safety certifications refer to the product label or the Online Product Certification section Electromagnetic Compatibility This product meets the requirements of the following EMC standards for elec...

Page 22: ...ments of applicable European Directives as follows 2006 95 EC Low Voltage Directive safety 2004 108 EC Electromagnetic Compatibility Directive EMC Online Product Certification Refer to the product Dec...

Page 23: ...ting vibration Random IEC 60068 2 64 5 grms 10 to 500 Hz Sinusoidal IEC 60068 2 6 5 g 10 to 500 Hz Operating shock IEC 60068 2 27 30 g 11 ms half sine 50 g 3 ms half sine 18 shocks at 6 orientations E...

Page 24: ...orage humidity IEC 60068 2 56 5 to 95 RH noncondensing Maximum altitude 2 000 m Pollution Degree 2 Environmental Management National Instruments is committed to designing and manufacturing products in...

Page 25: ...formation not included in this document Waste Electrical and Electronic Equipment WEEE EU Customers At the end of the life cycle all products must be sent to a WEEE recycling center For more informati...

Page 26: ...o has offices located around the world to help address your support needs For telephone support in the United States create your service request at ni com support and follow the calling instructions o...

Page 27: ...Zealand 0800 553 322 Norway 47 0 66 90 76 60 Poland 48 22 328 90 10 Portugal 351 210 311 210 Russia 7 495 783 6851 Singapore 1800 226 5886 Slovenia 386 3 425 42 00 South Africa 27 0 11 805 8197 Spain...

Page 28: ...n 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 For patents cover...

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