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SCXI ™ -1161 User Manual 8-Channel Power Relay Module SCXI-1161 User Manual March 1999 Edition Part Number 320514C-01 © Copyright 1993, 1999 National Instruments Corporation.
Worldwide Technical Support and Product Information www.natinst.com National Instruments Corporate Headquarters 11500 North Mopac Expressway Austin, Texas 78759-3504 USA Tel: 512 794 0100 Worldwide Of.
Important Information Warranty The SCXI-1161 is warranted against de fects in materials and wor kmanship for a period of on e year from the date of shipment, as evidenced by receipts or other documentati on. National Instruments will, at its option, repair or replace equipment that pro ves to be d efective duri ng th e warrant y pe riod.
© National Instruments Corporation v SCXI-1161 User Manual Table of Contents About This Manual Organization of This Manual .............. ........... .............. ............... ........... .............. ......... ix Conventions Used in This Manual .
T able of Contents SCXI-1161 User Manual vi © National Instruments Corporation Chapter 3 Signal Connections Screw Terminal Connections ........... ............... .............. ........... .............. .............. ........ 3-1 Contact Protection for Inductive Load Connections .
T able of Contents © National Instruments Corporation vii SCXI-1161 User Manual Figure 3-3. SCXI-1161 Rear Signal Connector Pin Assignment ............................. 3-5 Figure 4-1. SCXI-1161 Block Diagram ............. ........... .............. .
© Na ti ona l I nst ru men ts Co rpo ra tio n ix SCXI-1161 User Manual About This Manual This manual describes the electrical and me chanical aspects of the SCXI-1161 and contain s information concernin g its operation and programming.
About This Manual SCXI-1161 User Manual x © National Instruments Corporation • Appendix C, Customer Communication , contains forms you can use to request help from National Instruments or to comment on our products.
About This Manu al © Na ti ona l I nst ru men ts Co rpo ra tio n xi SCXI-1161 User Manual monospace Lowercase text in this font denotes te xt or characters that are to be literally input fro m the keyboard, sections of code, p rogramming examples, and syntax examples.
About This Manual SCXI-1161 User Manual xi i © National Instruments Corporation documentation sets and the NI-DAQ documentation. After you set u p your hardware system, use either the application software (LabVIEW or LabWindows/CVI) or the NI-DAQ documentatio n to help you write your ap plication.
© Na ti ona l I nst ru men ts Co rpo ra tio n 1- 1 SCXI-1161 User Manual Chapter 1 Introduction This chapter describes the SCXI-1161; lists the contents of your SCXI-1161 kit; descri bes the optional softwar e, optional equip ment, and custom cables; and expl ains how to unpack the S CXI-1161 kit.
Chapter 1 Introduction SCXI-1161 User Manual 1-2 © National Instruments Corporation Software Programming Choices There are several options to choose from when programming your National Instruments DAQ or SCXI hardware. Yo u can use LabVIEW, LabWindows/CVI, ComponentWorks, VirtualBench, NI-DAQ, or register-level programming.
Chapter 1 Introduction © Na ti ona l I nst ru men ts Co rpo ra tio n 1- 3 SCXI-1161 User Manual NI-DAQ Driver Software The NI-DAQ driver software is included at no charge with all National Instruments DAQ hard ware. NI-DAQ is not packaged wit h SCXI or accessory products, except for the SCXI-1200.
Chapter 1 Introduction SCXI-1161 User Manual 1-4 © National Instruments Corporation Figure 1-1. The Relationship between the Programming Environment, NI-DAQ, and Your Hardware Register-Level Programming The final option for p rogramming any Nat ional Instruments DAQ hardware is to write register-level software.
Chapter 1 Introduction © Na ti ona l I nst ru men ts Co rpo ra tio n 1- 5 SCXI-1161 User Manual Optional Equipment National Instrument s offers a variety of products t o use with your SCXI-1611, incl.
Chapter 1 Introduction SCXI-1161 User Manual 1-6 © National Instruments Corporation Unpacking Your SCXI-1161 module is shipped in an antistatic package to prevent electrostatic damage to the module. Electrostatic di scharge can damage several components on the module.
© Na ti ona l I nst ru men ts Co rpo ra tio n 2- 1 SCXI-1161 User Manual Chapter 2 Configuration and Installation This chapter describes the SCXI-1161 jumper configurations, installation of the SCXI-1161 into the SCXI chassis, signal connections to the SCXI-1161, and cable wiring.
Chapter 2 Configuration and Installation SCXI-1161 User Manual 2-2 © National Instruments Corporation Figure 2-1. SCXI-1161 General Parts Locator Diagram Thumbscrew Tightening Strain Relief Thumbscre.
Chapter 2 Configuration and Installation © Na ti ona l I nst ru men ts Co rpo ra tio n 2- 3 SCXI-1161 User Manual Caution: DO NOT OPERATE THE DEVICE IN AN EXP LOSIVE ATMOSPHERE OR WHERE THERE MAY BE FLAMMABL E GASES OR FUMES. KEEP AWAY FROM LIVE CIRCUITS.
Chapter 2 Configuration and Installation SCXI-1161 User Manual 2-4 © National Instruments Corporation Connect the signal wires to the screw terminals by inserting the stripped end of the wire full into the terminals. Tighten the terminals to a torque of 5 to 7 in.
Chapter 2 Configuration and Installation © Na ti ona l I nst ru men ts Co rpo ra tio n 2- 5 SCXI-1161 User Manual Jumper Use Use the jumpers as follows: • Jumper W1 connects a pullup resistor to the SERDATOUT signal on the rear signal connector.
Chapter 2 Configuration and Installation SCXI-1161 User Manual 2-6 © National Instruments Corporation Jumper W2 Position 1 connects the SCXIbus MISO line, after buffering, to the SERDATOUT pin of the rear signal connector. This is the factory-default setting.
Chapter 2 Configuration and Installation © Na ti ona l I nst ru men ts Co rpo ra tio n 2- 7 SCXI-1161 User Manual Table 2-1. Configuration of Jumpers W1 and W2 Jumper Description Configuration W1 Par.
Chapter 2 Configuration and Installation SCXI-1161 User Manual 2-8 © National Instruments Corporation Jumpers W3, W4, and W5 You can use two types of data acquisition boar ds with the SCXI-1161-DIO-type boards and MIO-type boards. All th ree jumpers have labels indicat ing the DIO and the MIO configurations.
Chapter 2 Configuration and Installation © Na ti ona l I nst ru men ts Co rpo ra tio n 2- 9 SCXI-1161 User Manual Hardware Installation You can install the SCXI-1161 in any availa ble SCXI chassis.
© Na ti ona l I nst ru men ts Co rpo ra tio n 3- 1 SCXI-1161 User Manual Chapter 3 Signal Connections This section descri bes the signal connections to the SCXI-1 161 board via the SCXI-1161 screw terminals and rear signal connector, and includes specifications and connection instructions for the SCXI-1161 connector signals.
Chapter 3 Signal Connections SCXI-1161 User Manual 3-2 © National Instruments Corporation Figure 3-1. Contact Protection Using a Flyback Diode for DC Inductive Loads In addition, the module has pads o n which you can place an arc suppressor protection circuit t o limit the voltage spike generated during the switching of inductive loads.
Chapter 3 Signal Connections © Na ti ona l I nst ru men ts Co rpo ra tio n 3- 3 SCXI-1161 User Manual Figure 3-2 shows how to connect a transient voltage suppressor for AC and DC inductive loads.
Chapter 3 Signal Connections SCXI-1161 User Manual 3-4 © National Instruments Corporation Signal Connection To connect the signal to the screw terminals, use the following procedure: 1. Remove the grou nding screw of the top co ver. 2. Snap out the top cover o f the shield by pl acing a screwdriver i n the groove at the bott om of the module.
Chapter 3 Signal Connections © Na ti ona l I nst ru men ts Co rpo ra tio n 3- 5 SCXI-1161 User Manual Figure 3-3 shows the pin assignments for the SCXI-1161 rear signal connector.
Chapter 3 Signal Connections SCXI-1161 User Manual 3-6 © National Instruments Corporation Rear Signal Connector Signal Descriptions Table 3-3 shows the rear signal connector signal description s.
Chapter 3 Signal Connections © Na ti ona l I nst ru men ts Co rpo ra tio n 3- 7 SCXI-1161 User Manual All other pins are not connected. Digital I/O Signal Connections When you configure the SCXI- 1161 for an MIO-ty pe board, the digital I/O signals of the SCXI-116 1 match the digital I/O lines o f the MIO-type board.
Chapter 3 Signal Connections SCXI-1161 User Manual 3-8 © National Instruments Corporation Table 3-4 lists the pin equivalences. For more i nformation, consult the installation guide of your cable.
© Na ti ona l I nst ru men ts Co rpo ra tio n 4- 1 SCXI-1161 User Manual Chapter 4 Theory of Operation This chapter contai ns a functional overview of the SCXI-1161 module and explains the o peration of each functional uni t making up the SCXI-1161.
Chapter 4 Theory of Operat ion SCXI-1161 User Manual 4-2 © National Instruments Corporation Figure 4-1. SCXI-1161 Block Diagram NC(6) COM(6) NO(6) NC(1) COM(1) NO(1) NC(0) COM(0) NO(0) NC(7) COM(7) N.
Chapter 4 Theory of Operation © Na ti ona l I nst ru men ts Co rpo ra tio n 4- 3 SCXI-1161 User Manual The major components of the SCXI-1161 are as follows: • The digital interface • The digital control circui try • The relay channels The SCXI-1161 module is dedicated t o switching and control ling power signal sources.
Chapter 4 Theory of Operat ion SCXI-1161 User Manual 4-4 © National Instruments Corporation signals from the data acqu isition board and t he SCXIbus and sends signals back and forth between the data acquisition board and the SCXIbus. Digital Control Circuitry Figure 4-3 diagrams the SCXI-1161 digital control.
Chapter 4 Theory of Operation © Na ti ona l I nst ru men ts Co rpo ra tio n 4- 5 SCXI-1161 User Manual Relay Channels The SCXI-1161 has eight indepen dent one form C (single-pol e double-throw) relays. Each relay has three connections at the front screw terminals–the common (COM), the normally closed (NC), and the normally open (NO) positions.
© National Instruments Corporation A-1 SCXI-1161 User Manual Appendix A Specifications This appendix lists t he specifications for the SCXI- 1161. These are typical at 25° C and 50% humidity unless otherwise stated. The operating temperature range is 0° to 50° C.
Appendix A Specifications SCXI-1161 User Manual A-2 © National Instruments Corporation Operate time ....................................... 15 msec Release time ....................................... 15 msec Physical Dimensions .....................
© National Instruments Corporation B-1 SCXI-1161 User Manual Appendix B Contact Protection This appendix contains technical data on contact p rotection whe n you are switching inductive loads. 1 1 Copyright © Aromat Corporation, 1991. Reprinted with permission of copyright owner.
Appendix B Contact Protection SCXI-1161 User Manual B-2 © National Instruments Corporation.
Appendix B Contact Protection © National Instruments Corporation B-3 SCXI-1161 User Manual.
Appendix B Contact Protection SCXI-1161 User Manual B-4 © National Instruments Corporation.
Appendix B Contact Protection © National Instruments Corporation B-5 SCXI-1161 User Manual.
Appendix B Contact Protection SCXI-1161 User Manual B-6 © National Instruments Corporation.
© National Instruments Corporation C-1 SCXI-1161 User Manual Appendix C Customer Communication This appendix describes the comprehensiv e resources av ailable to you in the T echnical Support section.
Software-Related Resources • Instrument Driver Network —A library with hundreds of instrument dri v ers for control of standalone instruments via GPIB, VXI, or serial interfaces. Y ou also can submit a request for a particular instrument dri ver if it does not already appear in the library .
Technical Support Form Photocopy this form and update it each time you make changes to your software or hardw are, and use the completed copy of this form as a reference for your current configuration.
SCXI-1161 Hardware and Software Configuration Form Record the settings and revisions of your hardware and software on the line to the right of each item. Complete a new copy of this form each time you revise your software or hardware configuration, and use this form as a reference for your current configuration.
Documentation Comment Form National Instruments encourages you to comment on the documentation supplied with our pro ducts. This information helps us provide quality products to meet your needs.
© National Instruments Corporation G-1 SCXI-1161 User Manual Glossary Numbers/Symbols ° degrees Ω ohms +5 V (signal) +5 VDC Source A A amperes AC alternating current A/D analog-to-digital AWG Amer.
Glossary SCXI-1161 User Manual G -2 © National Instruments Corporation C CC e l s i u s CHS Chassis CHSGND Chassis Ground COM common cpm cycles per minute D D/A digital-to-analog D*/A Data/Address DA.
Glossary © National Instruments Corporation G-3 SCXI-1161 User Manual I I/O input/output I I input current leakage I in input current in. inches INTR* Interrupt I out output current L LSB least signi.
Glossary SCXI-1161 User Manual G -4 © National Instruments Corporation R RAM random-access memory RESET* reset RMA Return Material Authorization rms root mean square RTSI Real-Time System Integration.
Glossary © National Instruments Corporation G-5 SCXI-1161 User Manual V Vv o l t s V+ Positive Analog Su pply V– Negative Analog Supply VAC volts alternating current VDC volts direct current V IH v.
© Na ti on al I ns tr ume nt s Cor por at io n I- 1 SCXI-1161 U ser Manual Index A arc suppressor pad locations (figure), 3-3 arc suppressor placement COM to NC (table), 3-3 COM to NO (table), 3-2 B .
Index SCXI-1161 User Manual I- 2 © National Instruments Corporation flyback voltage. See contact protection for inductive load connections. FTP support, C-1 H hardware installation, 2-9 I inductive load connections, contact protection for. See contact protection for inductive load connections.
Index © Na ti on al I ns tr ume nt s Cor por at io n I- 3 SCXI-1161 U ser Manual S safety cautions, 2-3 to 2-4 screw terminal connections, 3-1 SCXI-1161 block diagram, 4-2 custom cables, 1-5 optional.
Index SCXI-1161 User Manual I- 4 © National Instruments Corporation functional overview, 4-1 to 4-3 relay channels, 4-5 SCXI-1161 block diagram, 4-2 V VirtualBench software, 1-2.
Ein wichtiger Punkt beim Kauf des Geräts National Instruments SCXI-1161 (oder sogar vor seinem Kauf) ist das durchlesen seiner Bedienungsanleitung. Dies sollten wir wegen ein paar einfacher Gründe machen:
Wenn Sie National Instruments SCXI-1161 noch nicht gekauft haben, ist jetzt ein guter Moment, um sich mit den grundliegenden Daten des Produkts bekannt zu machen. Schauen Sie zuerst die ersten Seiten der Anleitung durch, die Sie oben finden. Dort finden Sie die wichtigsten technischen Daten für National Instruments SCXI-1161 - auf diese Weise prüfen Sie, ob das Gerät Ihren Wünschen entspricht. Wenn Sie tiefer in die Benutzeranleitung von National Instruments SCXI-1161 reinschauen, lernen Sie alle zugänglichen Produktfunktionen kennen, sowie erhalten Informationen über die Nutzung. Die Informationen, die Sie über National Instruments SCXI-1161 erhalten, werden Ihnen bestimmt bei der Kaufentscheidung helfen.
Wenn Sie aber schon National Instruments SCXI-1161 besitzen, und noch keine Gelegenheit dazu hatten, die Bedienungsanleitung zu lesen, sollten Sie es aufgrund der oben beschriebenen Gründe machen. Sie erfahren dann, ob Sie die zugänglichen Funktionen richtig genutzt haben, aber auch, ob Sie keine Fehler begangen haben, die den Nutzungszeitraum von National Instruments SCXI-1161 verkürzen könnten.
Jedoch ist die eine der wichtigsten Rollen, die eine Bedienungsanleitung für den Nutzer spielt, die Hilfe bei der Lösung von Problemen mit National Instruments SCXI-1161. Sie finden dort fast immer Troubleshooting, also die am häufigsten auftauchenden Störungen und Mängel bei National Instruments SCXI-1161 gemeinsam mit Hinweisen bezüglich der Arten ihrer Lösung. Sogar wenn es Ihnen nicht gelingen sollte das Problem alleine zu bewältigen, die Anleitung zeigt Ihnen die weitere Vorgehensweise – den Kontakt zur Kundenberatung oder dem naheliegenden Service.
