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OPERATING INSTRUCTIONS AND S PECIFICATIONS NI 9481 4-Channel SPST Electrom echanical Relay Mo dule ni.com/manuals Deutsch Français.
NI 9481 Operating I nstruction s and Specificati ons 2 ni.com This doc u ment describes ho w to u se the Nationa l Instr u ments 9481 and incl u des specifications and termin al assign ments for the NI 9481. 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 le s yo u are u sing.
© National Inst ruments Corp. 3 NI 9481 Operating Instructi ons and Specific ations Safety Guidelines Operate the NI 9481 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 9481 Operating I nstruction s and Specificati ons 4 ni.com Caution When mod u le terminals are hazardo u s voltage LIVE (>42.4 V pk /60 VDC), yo u m u st ens u re that devices and circ u its connected to the mod u le are properly ins u lated from h u man contact .
© National Inst ruments Corp. 5 NI 9481 Operating Instructi ons and Specific ations Safety Guidelines fo r Hazardous Loca tions The NI 9481 is s u itable for u se in Class I, Di vision 2, Gro u ps A, B, C, D, T4 h azardo u s locations; Class I, Zone 2, AEx nC IIC T4 hazardo u s locations; and nonhazardo u s locations onl y .
NI 9481 Operating I nstruction s and Specificati ons 6 ni.com Special Conditions fo r Marine Appli cations Some mod u les are Lloyd’ s Register (LR) T ype Approved for marine applications.
© National Inst ruments Corp. 7 NI 9481 Operating Instructi ons and Specific ations Connecting the NI 9481 The NI 9481 has a 10-terminal deta chable scre w-terminal connector that provides connec tions for 4 electromechanical relay cha nnels. Figure 2.
NI 9481 Operating I nstruction s and Specificati ons 8 ni.com Each electromechani cal relay ch annel has two inter changeable terminals, CHa and CHb . Each channel has an L ED that indicates the st ate of the channel. When a channel LED is lit, the channel i s on.
© National Inst ruments Corp. 9 NI 9481 Operating Instructi ons and Specific ations Note Yo u m u st u se 2-wire ferr u les to create a sec u re connection when connecting mo re than one wire to a sing le t ermi nal on t he NI 9481.
NI 9481 Operating I nstruction s and Specificati ons 10 ni.com Figure 4. 10-T erminal Detachable Screw-T e rminal Connector with Ferrule 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.
© National Inst ruments Corp. 11 NI 9481 Operating Instructi ons and Specif ications 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 9481 Operating I nstruction s and Specificati ons 12 ni.com Switching capacity (resisti ve load) Switching voltage ......... ........... ... 60 VDC max, 250 V rms max Switching c u rrent, per channel One channel on ................. ... 4 A ma x at 30 VDC, 1 A max at 60 VDC, 4 A max at 250 V rms All channels on .
© National Inst ruments Corp. 13 NI 9481 Operating Instructi ons and Specific ations MTBF .......... ........... ............ ........... ... 460,321 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 9481 Operating I nstruction s and Specificati ons 14 ni.com Physical Characteristics If yo u need to clean the mod u l e, wipe it with a dry to wel. Screw-terminal wiring ............ .......... 12 to 24 A WG copper cond u ctor wire with 10 mm (0.39 in.
© National Inst ruments Corp. 15 NI 9481 Operating Instructi ons and Specific ations 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 co nnect the NI 9481 to sign als or u se for meas u rements within Meas u rement Categories III or IV .
NI 9481 Operating I nstruction s and Specificati ons 16 ni.com Safety Standards This prod u ct meets the req u irements of the following standards of safety for electrica l eq u ipment for meas u reme.
© National Inst ruments Corp. 17 NI 9481 Operating Instructi ons and Specif ications Note For the standards applied to assess the EMC of this prod u ct, refer to the Online Product Certification section. Note For EMC compliance, operate this de vice with shielded cabling.
NI 9481 Operating I nstruction s and Specificati ons 18 ni.com Shock and Vibration T o meet t hese specif ications, yo u m u st panel mo u nt the system and either af f ix ferr u les to the ends of the terminal wires or u se the NI 9932 backshell kit to protect the connections.
© National Inst ruments Corp. 19 NI 9481 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 9481 Operating I nstruction s and Specificati ons 20 ni.com Waste Electrical and Electronic Equipment (WEEE) EU Customers At the end of the life c ycle, all prod u cts must be sent to a WEEE re c ycling center . For more information abo u t WEEE recycling ce nters and National Instr u ments WEEE initiati ves, visit ni.
© National Inst ruments Corp. 21 NI 9481 Operating Instructi ons and Specific ations Where to Go for Support The National Instr u ments W eb site is yo u r comple te reso u rce for technical s u pport.
NI 9481 Operating I nstruction s and Specificati ons 22 ni.com K orea 82 02 3451 3400, Lebanon 961 (0) 1 33 28 28, Malaysia 1800 887710, Mexico 0 1 800 010 0793, Netherlands 31 (0) 348 433 466, New Ze.
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In een situatie waarin je al een beziter van National Instruments NI 9481 bent, maar toch heb je de instructies niet gelezen, moet je het doen voor de hierboven beschreven redenen. Je zult dan weten of je goed de alle beschikbare functies heb gebruikt, en of je fouten heb gemaakt die het leven van de National Instruments NI 9481 kunnen verkorten.
Maar de belangrijkste taak van de handleiding is om de gebruiker bij het oplossen van problemen te helpen met National Instruments NI 9481 . Bijna altijd, zal je daar het vinden Troubleshooting met de meest voorkomende storingen en defecten #MANUAl# samen met de instructies over hun opplosinge. Zelfs als je zelf niet kan om het probleem op te lossen, zal de instructie je de weg wijzen naar verdere andere procedure, bijv. door contact met de klantenservice of het dichtstbijzijnde servicecentrum.
