National Instruments NI 9481E manual

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Table of contents for the manual

  • Page 1

    OPERATING INSTRUCTIONS AND S PECIFICATIONS NI 9481E 4-Channel SPST Electrom echanical Relay Mo dule[...]

  • Page 2

    NI 9481E Operating I nstructio ns and Specifica tions 2 ni.com This document describes ho w to use the National Instruments 9481E and includes dimensions , terminal assignments, an d specifi cations for the NI 9481E. V isit ni.com/info and enter rdsoftwareversion to determine which softw are you ne ed for the modules you are using. For informatio n[...]

  • Page 3

    © National Inst ruments Corp. 3 NI 9481E Operating In structions and Specificat ions NI 9481E Dimensions The following f igure show s the dimensions of the NI 9481E. Figure 1. NI 9481E Dimens ions in Mi llimeters (Inc hes) 73.4 (2.89) 0.0 (0.00) 26.7 (1.05) 58.4 (2.30) 66.0 (2.60) 0.0 (0.00)[...]

  • Page 4

    NI 9481E Operating I nstructio ns and Specifica tions 4 ni.com Connecting the NI 9481E The NI 9481E has a 10-terminal detachable scre w-terminal connector that prov ides connectio ns for four el ectromechanical relay channels. Figure 2. NI 9481E T erminal Assign ments CH0a CH0b CH1a CH1b CH2a CH2b CH3a CH3b NC NC 0 1 2 3 4 5 6 7 8 9 0 3[...]

  • Page 5

    © National Inst ruments Corp. 5 NI 9481E Operating In structions and Specificat ions 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. When the LED is dark, the channel is off. The LEDs are di sab[...]

  • Page 6

    NI 9481E Operating I nstructio ns and Specifica tions 6 ni.com Note Y ou must use 2-wire ferrules to create a secure connection when connecting mo re than one wire to a sin gle term ina l on the NI 9481E. When the channel is turned on, th e terminal connected to the load dri ves current or appl ies v oltage to the load. When the channel is off, th [...]

  • Page 7

    © National Inst ruments Corp. 7 NI 9481E Operating In structions and Specificat ions Specifications The follo wing specificat ions are typical for the range – 40 to 85 °C unless otherwise noted. Output Characteristics Number of channels ............ ............. . 4 electr omechanical relay channels Relay type ........... ............. .......[...]

  • Page 8

    NI 9481E Operating I nstructio ns and Specifica tions 8 ni.com Resistance per c hannel, channel on ............. ........... ............ ..... 5 0 m Ω Switching rate ..... ............. .............. ... 1 operation pe r second Relay release t ime ............ ............ ..... 5 m s max Relay operate time ......... .............. ..... 1 0 ms [...]

  • Page 9

    © National Inst ruments Corp. 9 NI 9481E Operating In structions and Specificat ions Power Requirements Power consumption from chassis Active mode .............. ............ ..... 580 mW max Sleep mode ................ ............ ..... 5 m W max Thermal dissipation (at 70 °C) Active mode ... ........... ............ ..... 1.5 W max Sleep mode [...]

  • Page 10

    NI 9481E Operating I nstructions a nd Specificati ons 10 ni.com Safety Safety Voltages Connect only v oltages that are within the follo wing limits. CHa-to-CHb ........ ............. ............ ..... 250 V rms max, Measurement Category II Measurement Cate gory II is fo r measurements performed on circuits directly conn ected to th e electrical di[...]

  • Page 11

    © National Inst ruments Corp. 11 NI 9481E Operating In structions and Specificat ions Channel-to-earth ground Continuous .......... ............ ..... 250 V rms (Double insulation) W ithstand ...... ........... ............ 2,300 V rm s , ve r ifi ed by a 5 s dielectric withstand test Safety Standards This product meets the requirements of the fol[...]

  • Page 12

    NI 9481E Operating I nstructions a nd Specificati ons 12 ni.com Environmental National Instruments C Series modules are in tended for indoor use only but may be used outdoors if inst alled in a suitable enclosure. Refer to the manual for the chassis you are using for more information about meetin g these specif ications. Operating temperature (IEC [...]

  • Page 13

    © National Inst ruments Corp. 13 NI 9481E Operating In structions and Specificat ions Environmental Mana gement NI is committed to designing a nd manufacturing products in an en vironmentally responsible manner . NI recognizes that eliminating certain ha zardous substances from our products is benef icial to th e envi ronment and t o NI customers.[...]

  • Page 14

    NI 9481E Operating I nstructions a nd Specificati ons 14 ni.com Where to Go for Support The National Instruments W eb site is your complete resource for technical support. At ni.com/support you ha ve access to ev erything from troubleshooting and application de velopment self-help resources to emai l and phone assistance from NI Application Enginee[...]

  • Page 15

    © National Inst ruments Corp. 15 NI 9481E Operating In structions and Specificat ions telephone support outside the Un ited States, con tact your local branch off ice: Australia 1800 300 800, Austria 43 662 457990-0, Belgium 32 (0) 2 757 0020, Br azil 55 11 3262 3599, Canada 800 433 3488, China 86 21 5050 9800, Czech Republic 420 224 235 774, Denm[...]

  • Page 16

    © 2008 National I nstruments Corp. All rights reserved. 372621A-01 Aug08 National Instruments, NI, n i.com, and LabVIEW are trademarks of National Instruments Corporation. Refer to the Terms of Use section on ni.com/legal for more information about Nat ional Instruments trademarks. Other product and company names ment ioned herein are tradema rks [...]