Manuale d’uso / di manutenzione del prodotto NI 9476 del fabbricante 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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Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il National Instruments NI 9476 è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del National Instruments NI 9476 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso National Instruments NI 9476 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul National Instruments NI 9476 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il National Instruments NI 9476, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del National Instruments NI 9476.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il National Instruments NI 9476. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo National Instruments NI 9476 insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
