National Instruments NI 9475 - Manuals

© National Instruments Corp. 5 NI 9475 Operating Instructions and Specifications Special Conditions for Marine Applications Some mod u les are Lloyd’s Register (LR) Type Approved for marine applications. To verify Lloyd’s Register certification, visit ni.com/certification and search for the LR certi...

NI 9475 Operating Instructions and Specifications 6 ni.com Connecting the NI 9475 The NI 9475 has a 25-pin DSUB connector that provides connections for eight digital o u tp u t channels. Figure 1. NI 9475 Pin Assignments COMVsupCOMCOMVsupCOMCOMVsupCOMCOMVsupCOMCOM DO0VsupDO1DO2VsupDO3DO4VsupDO5DO6Vs...

© National Instruments Corp. 7 NI 9475 Operating Instructions and Specifications Each channel of the NI 9475 has a DO pin to which yo u can connect a device. Each channel also has a COM pin and a V s u p pin. National Instr u ments recommends yo u provide independent COM and V s u p wiring for each ...

© National Instruments Corp. 9 NI 9475 Operating Instructions and Specifications Increasing Current Drive Each channel 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 device, yo u can connect any n u mber of channels together in parallel. For ...

NI 9475 Operating Instructions and Specifications 10 ni.com I/O Protection The NI 9475 is short-circ u it proof in accordance with IEC 1131-2 and provides overc u rrent protection. Understanding Short-Circuit-Proof Devices Each channel on the NI 9475 has circ u itry that protects it from c u rrent s...

© National Instruments Corp. 11 NI 9475 Operating Instructions and Specifications Higher inr u sh c u rrents that exist for less than the trip time do not trip the protection circ u itry. Refer to the Specifications section for more information abo u t the maxim u m contin u o u s o u tp u t c u rre...

NI 9475 Operating Instructions and Specifications 12 ni.com overc u rrent condition occ u rs. A channel LED may be on even if the channel is off beca u se of an overc u rrent condition. To determine if the channel is in an overc u rrent state, meas u re the voltage between DO and V s u p . If the vo...

© National Instruments Corp. 13 NI 9475 Operating Instructions and Specifications s u pport for sleep mode. Refer to the software help for information abo u t enabling sleep mode. Visit ni.com/info and enter c s erie s doc for information abo u t C Series doc u mentation. Typically, when a system is...

NI 9475 Operating Instructions and Specifications 14 ni.com O u tp u t impedance ( R 0 ) ..................... 0.14 Ω max Contin u o u s o u tp u t c u rrent ( I 0 ), per channel ........................................ 1 A max O u tp u t voltage .................................. V sup – ( I 0 · R ...

© National Instruments Corp. 15 NI 9475 Operating Instructions and Specifications MTBF ............................................... 1,096,296 ho u rs at 25 °C; Bellcore Iss u e 6, Method 1, Case 3, Limited Part Stress Method Note Contact NI for Bellcore MTBF specifications at other temperat u res...

NI 9475 Operating Instructions and Specifications 16 ni.com Safety Maximum Voltage 1 Connect only voltages that are within the following limits. V s u p -to-COM..................................... 60 VDC, Meas u rement Category I Meas u rement Category I is for meas u rements performed on circ u it...

© National Instruments Corp. 17 NI 9475 Operating Instructions and Specifications Isolation Voltages Channel-to-channel ........................... No isolation between channels Channel-to-earth gro u nd Contin u o u s ................................. 60 VDC, Meas u rement Category I Withstand........

NI 9475 Operating Instructions and Specifications 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 nA IIC T4 Canada (C-UL) ................................. Class I, Division 2, Gro u ps A, B, C, D, T...

© National Instruments Corp. 19 NI 9475 Operating Instructions and Specifications 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............

NI 9475 Operating Instructions and Specifications 20 ni.com Electromagnetic Compatibility This prod u ct is designed to meet the req u irements of the following standards of EMC for electrical eq u ipment for meas u rement, control, and laboratory u se: • EN 61326 EMC req u irements; Ind u strial Im...

© National Instruments Corp. 21 NI 9475 Operating Instructions and Specifications Note Refer to the Declaration of Conformity (DoC) for this prod u ct for any additional reg u latory compliance information. To obtain the DoC for this prod u ct, visit ni.com/certification , search by mod u le n u mbe...

NI 9475 Operating Instructions and Specifications 22 ni.com Waste Electrical and Electronic Equipment (WEEE) EU Customers At the end of their life cycle, all prod u cts must be sent to a WEEE recycling center. For more information abo u t WEEE recycling centers and National Instr u ments WEEE initia...

© National Instruments Corp. 23 NI 9475 Operating Instructions and Specifications Where to Go for Support The National Instr u ments Web site is yo u r complete reso u rce for technical s u pport. At ni.com/ s upport yo u have access to everything from tro u bleshooting and application development s...