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National Instruments NI 9476 manual

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Table of contents for the manual

  • Page 1

    OPERATING INSTRUCTIONS AND S PECIFICATIONS NI 9476 32-Channel, 24 V, Sourcing Digital Output Module ni.com/manuals Deutsch Français[...]

  • Page 2

    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. For information abo u [...]

  • Page 3

    © 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 . Safety Guidelines fo r Hazardous Loca tions Th e N [...]

  • Page 4

    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 . Caution For Zone 2 applications, install a protection device bet[...]

  • Page 5

    © 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.com/certification and search for the LR certificate, or look for the Lloyd’[...]

  • Page 6

    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. Figure 1. NI 9476 Pin Assignm ents DO16 DO17 DO18 DO19 DO20 DO21 DO22 DO23 Vsup Vsup DO24 DO25 DO26 DO27 DO28 DO29 DO30 DO31 DO0 DO1 DO2 DO3 DO4 DO5 DO6 DO7 Vsup[...]

  • Page 7

    © 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. The power s u pply provides the c u rrent fo r the o[...]

  • Page 8

    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. Refer to the Specifications [...]

  • Page 9

    © 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. F or exam ple, if yo u want to dri v e 1 A of[...]

  • Page 10

    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. Figure 4. Connectin[...]

  • Page 11

    © 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. Understanding Pro tected Devices Each channel on the NI 9476 has circ u itry that protec ts it from voltage and c u rrent s u rg[...]

  • Page 12

    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. If the chassis s u pports sleep mode, r[...]

  • Page 13

    © 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. Output Characteristics N u mber of channels ..... ........... .......... 32 digital o u [...]

  • Page 14

    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 ...... ............ ........... ... None Short-circ u it protection ....... ........... ... Indefinitely protect e[...]

  • Page 15

    © 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. Po[...]

  • Page 16

    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... ........... ........... ......... ... 36 VDC, Meas u rement Category 1 Meas u rement Cate gory I is for meas u rements performed on circ u its not directly connected to the electri[...]

  • Page 17

    © 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 ................ ............ ..... 60 VDC, Meas u rement Category I W ithstand .......... ............ ........... ... 1,0[...]

  • Page 18

    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) ............ ........... .......... Cla ss I, Division 2, Gro u ps A, B, C, D, T4; Class I, Zone 2, Ex nC IIC T4 E u ro[...]

  • Page 19

    © 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)....... ........... ............ 5 to 95% RH, noncondensing Maxim u m altit u de.......... ......... .......... 2,000 m Poll u tion[...]

  • Page 20

    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 u ipment for meas u remen t, control, and laboratory u se: • EN 61326 EMC req u irements; Ind u strial Imm u nity • EN 55011 Emissions; Gro u p 1[...]

  • Page 21

    © 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 amended for CE markings, as follo ws: • 2006/95/EC; Low-V oltage Directi v e (safety) • 2004/108/EC; Electromagneti c Compatibility Directive (EMC) Note[...]

  • Page 22

    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.[...]

  • Page 23

    © 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. At ni.com/ s upport yo u have access to ev erything from tro u bleshooting and applic ation de velopment self-help reso u rces to email and phone ass[...]

  • Page 24

    © 2005–2008 Nati onal Instruments Corp. All rights reserved. 373964D-01 Apr08 National Instruments, NI, n i.com, and LabVIEW are trademarks of National Instruments C orporation. Refer to the Terms of Use section on ni.com/legal for more information about National Instruments trademarks. Other product and company names ment ioned herein are trade[...]