Instruction/ maintenance manual of the product NI 9476 National Instruments
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OPERATING INSTRUCTIONS AND S PECIFICATIONS NI 9476 32-Channel, 24 V, Sourcing Digital Output Module ni.com/manuals Deutsch Français.
NI 9476 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 9 476 and incl u des specif ications and pin assignments for the NI 9476. 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 9476 Operating Instructi ons and Specific ations Safety Guidelines Operate the NI 94 76 only as described in these operating instr u ctions. Hot Surface This icon denotes that the component may be hot. T o u ching this component may res u lt in bodily inj u ry .
NI 9476 Operating I nstruction s and Specificati ons 4 ni.com Caution S u bstit u tion of components may impair s u itability for Class I, Division 2. Caution For Zone 2 applications, install the system in an enclos u re rated to at least IP 54 as defined b y IEC 60529 an d EN 60529 .
© National Inst ruments Corp. 5 NI 9476 Operating Instructi ons and Specific ations Special Conditions fo r Marine Appli cations Some mod u les are Lloyd’ s Re gister (LR) T ype Approv ed for marine applications. T o verify Llo yd’ s Register cert ification, visit ni.
NI 9476 Operating I nstruction s and Specificati ons 6 ni.com Connecting the NI 9476 The NI 9476 has a 37-pin DSUB connector that pro vides connections fo r 32 digital o u tp u t channels.
© National Inst ruments Corp. 7 NI 9476 Operating Instructi ons and Specific ations Each channel has a DO pin to which yo u can connect a digital inp u t de vice. The 32 digital o u tp u t channels are inte rnally referenced to COM. Yo u m u st connect an external po wer s u pply to the NI 9476.
NI 9476 Operating I nstruction s and Specificati ons 8 ni.com Yo u can directly connect the NI 9476 to a va riety of ind u strial de vices s u ch as solenoids, motors, act u ators, relays, and lamps. Make s u re the devices yo u connect to the NI 9476 are co mpatible with the o u tp u t specif ications of t he mod u le.
© National Inst ruments Corp. 9 NI 9476 Operating Instructi ons and Specific ations Increasing Current Drive Each channel ha s a contin u o u s o u tp u t c u rrent of 250 mA. If yo u want to increase the o u tp u t c u rrent to a de vice, yo u can connect any n u mber of channels together in parallel.
NI 9476 Operating I nstruction s and Specificati ons 10 ni.com Protecting the Mo dule from Flyback V oltage s If the mod u le is switching an ind u ctive or ener gy-storing device s u ch as a solenoid, motor , or relay , and the device does not ha ve flyback protection, install an exte rnal flyback diode as sho wn in Fig u re 4.
© National Inst ruments Corp. 11 NI 9476 Operating Instructi ons and Specific ations I/O Protection The NI 9476 is protected against ov erc u rrent, inr u sh, and short-circ u it conditions in accordance with IEC 1131-2.
NI 9476 Operating I nstruction s and Specificati ons 12 ni.com 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. Refer to the chassis man u al for information abo u t s u pport for sleep mode.
© National Inst ruments Corp. 13 NI 9476 Operating Instructi ons and Specific ations Specifications The follo wing spec ific ations are typical for the range – 40 to 70 °C u nless otherwise noted. All v oltages are relat iv e to COM u nless otherwise noted.
NI 9476 Operating I nstruction s and Specificati ons 14 ni.com Contin u o u s o verv ol tage protection ( V sup ) ......... ......... ........... ... u p to 40 V max Re versed-v oltage prot ection ............. None C u rrent limitin g ...... ........
© National Inst ruments Corp. 15 NI 9476 Operating Instructi ons and Specific ations MTBF .......... ........... .................. ........ 1,091,425 ho u rs at 25 °C; Bellcore Iss u e 2, Method 1, Case 3, Limited P art Stress Method Note Contact NI for Bellcore MTBF specifications at other temperat u res or for MIL-HDBK-21 7F specifications.
NI 9476 Operating I nstruction s and Specificati ons 16 ni.com Safety Maximum Voltage 1 Connect only v oltages that are within the follo wing lim its. V s u p -to-COM.
© National Inst ruments Corp. 17 NI 9476 Operating Instructi ons and Specific ations Isolation Voltages Channel-to-channel ...... ............. ........ No i solation betwe en channels Channel-to-earth gro u nd Contin u o u s ................ .......
NI 9476 Operating I nstruction s and Specificati ons 18 ni.com Hazardous Locations U.S. (UL) ........ ........... ........... ......... ... Class I, Division 2, Gro u ps A, B, C, D, T4; Class I, Zone 2, AEx nC IIC T4 Canada (C-UL) ............ .......
© National Inst ruments Corp. 19 NI 9476 Operating Instructi ons and Specific ations Operating h u midity (IEC 60068-2-56)....... ........... ............ 10 to 90% RH, noncondensing Storage h u midity (IEC 60068-2-56)....... ........... ............
NI 9476 Operating I nstruction s and Specificati ons 20 ni.com Electromagnetic Compatibility This prod u ct is designed to meet the req u ire ments of the follo wing standards of EMC for electrical eq.
© National Inst ruments Corp. 21 NI 9476 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 9476 Operating I nstruction s and Specificati ons 22 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. 23 NI 9476 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 9476 (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 9476 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 9476 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, National Instruments NI 9476 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 9476 will certainly help you make a decision on the purchase.
If you already are a holder of National Instruments NI 9476, 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 9476.
However, one of the most important roles played by the user manual is to help in solving problems with National Instruments NI 9476. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device National Instruments NI 9476 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
