Manuale d’uso / di manutenzione del prodotto NI 9472 del fabbricante National Instruments
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OPERATING INSTRUCTIONS AND S PECIFICA TIONS NI 9472/9474 8-Channel Digital Output Modules ni.com/manuals Deutsch Français.
NI 9472/9474 2 ni.com This doc u ment describes ho w to u se the National Instr u ments 9472 and National Instr u ments 9474 and incl u des specif ications and terminal or pin assignments. In this doc u ment, the NI 94 72/9474 with screw terminal and NI 9472 with DSUB are referred to incl u siv ely as the NI 9472/9474.
© National Instruments Corp. 3 NI 9472/9474 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 . Safety Guidelines for Hazardous V oltages Yo u can connect hazardo u s voltages only to th e NI 9472/9474 with screw terminal.
NI 9472/9474 4 ni.com and circ u its connected to the mod u le are properly ins u lated from h u man contact. Y o u m u st u se the NI 9932 connector backshell kit to ens u re that the terminals are not accessible. Fig u re 1 sho ws the NI 9932 connector backshell.
© National Instruments Corp. 5 NI 9472/9474 Safety Guidelines fo r Hazardous Loca tions The NI 9472/9474 is s u itable for u se in Class I, Di vision 2, Gro u ps A, B, C, D, T4 hazardo u s locations; Class I, Zone 2, AEx nC IIC T4 and Ex nC IIC T4 hazardo u s locations; and nonhazardo u s locations only .
NI 9472/9474 6 ni.com Caution For Zone 2 applications, install a protection device between the V s u p and COM terminals on the NI 9472/9474. The d evice m u st pre vent the inp u t V s u p -to-COM voltage from e xceeding 42 V i f there is a transient overv oltage condition.
© National Instruments Corp. 7 NI 9472/9474 Special Conditions fo r Marine Applicatio ns Some mod u les are Lloyd’ s Register (LR) T ype Approved for marine applications. T o verify Llo yd’ s Register cert ification, visit ni.com/certification and search for the LR certificate, or look for the Lloyd’ s Register mark on the mod u le.
NI 9472/9474 8 ni.com Connecting the NI 9472/9474 The NI 9472/9474 provides connectio ns for eight digital o u tp u t channels. Figure 2. NI 9472/9474 T erminal and Pin Assignments DO0 DO1 DO2 DO3 DO4.
© National Instruments Corp. 9 NI 9472/9474 The NI 9472/9474 with scre w te rminal has a 10-terminal, detachable scre w-terminal conne ctor . The NI 9472 with DSUB has a 25-pin DSUB connector . Each channel of the NI 9472/9474 has a terminal or pin, DO, to which yo u can connect a device.
NI 9472/9474 10 ni.com Yo u m u st connect an external po wer s u pply to the NI 9472/9474. This power s u pply provides the c u rrent for the de vices yo u connect to the mod u le. Connect the positi ve lead of the po wer s u pply to V s u p and the negati v e lead of the power s u pply to COM.
© National Instruments Corp. 11 NI 9472/9474 Yo u can directly connect the NI 9472/9474 to a v ariety 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 9472/9474 are compatible with the o u tp u t specificati ons of the mod u le.
NI 9472/9474 12 ni.com Increasing Current Drive Each channel of the NI 9472 has a contin u o u s o u tp u t c u rrent of 0.75 A, and each channel of the NI 9474 has a contin u o u s o u tp u t c u rrent of 1 A. 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.
© National Instruments Corp. 13 NI 9472/9474 Wiring for High-Vibration Applications If an application u sing the NI 9472/9474 with screw terminal is s u bject to high vibrat ion, National Instr u men.
NI 9472/9474 14 ni.com I/O Protection The NI 9472/9474 is short-circ u it proof in accordan ce with IEC 1131-2 and provides o verc u rren t protection. Understanding Sh ort-Ci rcuit-Proof Devices Each channel on the NI 9472/9474 has circ u itry that protects it from c u rrent s u rge s r es u lting from short circ u its.
© National Instruments Corp. 15 NI 9472/9474 more informatio n abo u t the maxim u m contin u o u s o u tp u t c u rrent, short-circ u it behavior , and short-circ u it trip time. Y o u also can refer to the IEC 1131-2 standard for more information abo u t short-circ u it-proof de vices.
NI 9472/9474 16 ni.com the channel is in an overc u rrent state, meas u re the voltage between DO and V s u p . If the v oltage is eq u al to the volta ge of the exte rnal power s u pply connected to the mod u le, the channel is in an ove rc u rrent state.
© National Instruments Corp. 17 NI 9472/9474 T ypically , when a system is in sleep mode, yo u cannot comm u nicate with the mod u les. In sleep mode, the system cons u mes minimal po wer and may diss ipat e less heat than it does in normal mode.
NI 9472/9474 18 ni.com O u tp u t impedance ( R 0 ) T ypical . ............. ............ ............. . 0.07 Ω Maxim u m ......... .............. ........... . 0.13 Ω Contin u o u s o u tp u t c u rrent ( I 0 ), per channel NI 9472 ......... .....
© National Instruments Corp. 19 NI 9472/9474 O u tp u t delay time (f u ll load) NI 9472 ........... ........... ............ ..... 100 μ s max NI 9474 ......... ...................... ........ 1 μ s max MTBF NI 9472 ......... .....................
NI 9472/9474 20 ni.com Thermal dissipation (at 70 °C) Active mode ............ .............. ..... 1.5 W max Sleep mode .......... ........... ........... . 55 mW ma x NI 9474 Power Requirem ents Power cons u mption fr om chassis Activ e mode ......
© National Instruments Corp. 21 NI 9472/9474 Ferr u les ........ ........... .............. ........... . 0.25 mm 2 to 2.5 mm 2 W eight NI 9472/9474 with screw terminal .. ............ ............. . 150 g (5.3 oz) NI 9472 with DSUB ......... ......
NI 9472/9474 22 ni.com This cate gory refers to local-le vel electrical distr ib u tion, s u ch as that provided b y a standard wall o u tlet, for e xample, 115 V for U.S. or 230 V for E u rope. Caution Do not connect the NI 9472 /9474 with screw terminal to signals or u se for meas u rements within Meas u rement Categories III or IV .
© National Instruments Corp. 23 NI 9472/9474 s u pply system that powers eq u ipment. This cate gory is for meas u rements of voltages from spec ially protecte d secondary circ u its.
NI 9472/9474 24 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) ............ ........... .......... Cla ss I, Division 2, Gro u ps A, B, C, D, T4; Class I, Zone 2, Ex nC IIC T4 E u rope (DEMK O).
© National Instruments Corp. 25 NI 9472/9474 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. Refer to th e man u al for the chassis yo u are u sing for more information abo u t meeting th ese specif ications.
NI 9472/9474 26 ni.com Shock and Vibration T o meet th ese specifications, yo u m u st panel mo u nt the system. If yo u are u sing the NI 9472/9474 with scre w terminal, yo u also m u st either af fix ferr u les to the ends of the terminal wires or u se the NI 9932 backshell kit to protect the connections.
© National Instruments Corp. 27 NI 9472/9474 Note For EMC compliance, operate this de vice with shielded cabling. CE Compliance This prod u ct meets the essent ial req u irem ents of applic able E u .
NI 9472/9474 28 ni.com Environmental Mana gement National Instr u ments is committe d to designing and man u fact u ring prod u cts in an en vironmentally res ponsible manner . NI recognizes that eliminating certain hazardo u s s u bstan ces from o u r prod u cts is beneficial not only to t he en vironment b u t also to NI c u stomers.
© National Instruments Corp. 29 NI 9472/9474 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. At ni.com/ s upport yo u have access to ev erything from tro u bleshooting and applic ation dev elopment self-help reso u rces to email and phone assistance from NI Application Engineers.
NI 9472/9474 30 ni.com telephone s u pport o u tside the United St ates, contact yo u r local branch off ice: A u stralia 1800 300 800, A u stria 43 662 457990-0, Belgi u m 32 (0) 2 757 0020, Brazil 5.
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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 9472 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 9472 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso National Instruments NI 9472 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul National Instruments NI 9472 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il National Instruments NI 9472, 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 9472.
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 9472. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo National Instruments NI 9472 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.
