Instruction/ maintenance manual of the product NI 9426 National Instruments
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OPERATING INSTRUCTIONS AND S PECIFICATIONS NI 9426 32-Channel, 24 V, Sourcing Digital Input Module ni.com/manuals Deutsch Français.
NI 9426 Operating I nstruction s and Specificati ons 2 ni.com This doc u ment describes ho w to u se the National Instr u ments 9426 and incl u des specif ications and pin assignments for the NI 9426. Vi s i t ni.com/info and enter rd s oftwarever s ion to determine which software yo u need for the mod u les yo u are u sing.
© National Inst ruments Corp. 3 NI 9426 Operating Instructi ons and Specific ations Safety Guidelines for Hazardous V oltages If hazardo u s voltages are connected to the mod u le, ta ke the follow ing preca u tions. A hazardo u s v oltage is a voltage greater than 42.
NI 9426 Operating I nstruction s and Specificati ons 4 ni.com Ex nA IIC T4 hazardo u s locations; and nonhazardo u s locations only . Follow these g u ideli nes if yo u are i nstalling the NI 942 6 in a potentially explosi ve en vironm ent. Not following the se g u idelines may res u lt in serio u s inj u ry or death.
© National Inst ruments Corp. 5 NI 9426 Operating Instructi ons and Specific ations Special Conditions for Hazard ous Locations Use in Europe This eq u ipment has been e v al u ated as Ex nA IIC T4 eq u ipment u nder DEMK O Certificate No. 07 A TEX 0626664X.
NI 9426 Operating I nstruction s and Specificati ons 6 ni.com Connecting the NI 9426 The NI 9426 has a 37-pin DSUB connector that pro vides connections for 32 sim u ltaneo u sly-sampled digital inp u t channels.
© National Inst ruments Corp. 7 NI 9426 Operating Instructi ons and Specific ations Each channel has a DI pin to which yo u can connect a digital inp u t signal. The NI 9426 has fo u r s u pply pins, V s u p , that are interna lly connected to the isolated reference of the mod u le.
NI 9426 Operating I nstruction s and Specificati ons 8 ni.com Figure 2. Connecting a Device to the NI 9426 (Three-Wire Device Shown) The NI 9426 channel re gisters as ON when the sinking-o u tp u t de vice driv es the inp u t below V s u p and meets the inp u t ON range.
© National Inst ruments Corp. 9 NI 9426 Operat ing Instructi ons and Specif ications Sleep Mode This mod u le s u pports a low-po wer sleep mode. S u pport for sleep mode at the system le vel depe nds on the chassis that the mod u le is pl u gged into.
NI 9426 Operating I nstruction s and Specificati ons 10 ni.com Inp u t type ........ ........... ........... ........... . So u rcing Digital logic le v els OFF state Inp u t v oltage 1 ............. ......... . ≥ ( V sup – 5 V) Inp u t c u rrent .
© National Inst ruments Corp. 11 NI 9426 Operating Instructi ons and Specific ations Hold time 1 ......... ......... ........... ........... . 0 s mi n Set u p time 2 .......... ........... ......... .......... 1 μ s min Update/transfer time 3 .....
NI 9426 Operating I nstruction s and Specificati ons 12 ni.com Power Requirements Power cons u mption fr om chassis Active mode .............. ............ ..... 615 mW max Sleep mode 1 ...... ......... ............ ..... 5 mW max Thermal dissipation (at 70 °C) Active mode .
© National Inst ruments Corp. 13 NI 9426 Operating Instructi ons and Specific ations Isolation Channel-to-channel ............... ..... None Channel-to-earth gro u nd Contin u o u s ........ ........... ........ 60 VDC, Meas u rement Category I W ithstand .
NI 9426 Operating I nstruction s and Specificati ons 14 ni.com Safety Standards This prod u ct is designed to meet the req u ire ments of the follo wing standards of safety for electrical eq u ipment .
© National Inst ruments Corp. 15 NI 9426 Operating Instructi ons and Specific ations Environmental National Instr u ments C Series mod u les are intend ed for indoor u se only b u t may be u sed o u tdoors if installed in a s u itabl e enclos u re.
NI 9426 Operating I nstruction s and Specificati ons 16 ni.com Shock and Vibration T o meet thes e specifications, yo u m u st panel mo u nt the system. Operating vibration Random (IEC 60068-2-64)......... 5 g rms , 10 to 500 Hz Sin u soidal (IEC 60068-2-6) .
© National Inst ruments Corp. 17 NI 9426 Operating Instructi ons and Specific ations CE Compliance This prod u ct meets the essent ial req u irem ents of app licable E u ropean directi ves, as amende.
NI 9426 Operating I nstruction s and Specificati ons 18 ni.com For additional en viro nmental information, refer to the NI a nd the Environment W eb page at ni.com/environment . This page contains the en vironmental reg u lations and direct i ves with which NI complies, as well as othe r en vironmental information not incl u ded in this doc u ment.
© National Inst ruments Corp. 19 NI 9426 Operating Instructions and Specific ations Where to Go for Support The National Instr u ments W eb site is yo u r complete reso u rce for technical s u pport.
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An important point after buying a device National Instruments NI 9426 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought National Instruments NI 9426 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data National Instruments NI 9426 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, National Instruments NI 9426 you will learn all the available features of the product, as well as information on its operation. The information that you get National Instruments NI 9426 will certainly help you make a decision on the purchase.
If you already are a holder of National Instruments NI 9426, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime National Instruments NI 9426.
However, one of the most important roles played by the user manual is to help in solving problems with National Instruments NI 9426. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device National Instruments NI 9426 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
