Benutzeranleitung / Produktwartung NI 9472 des Produzenten 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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