Manuale d’uso / di manutenzione del prodotto 7344 del fabbricante National Instruments
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Motion Control 7344/7334 Hardware User Manual 7344/7334 Hardware User Manu al May 2001 Edition Part Number 322504 B-01.
Support Worldwide Technical Support and Product Information ni.com National Instruments Corporate Headquarters 11500 North Mopac Expressway Austin, Texas 78759-3504 USA Tel: 512 794 0100 Worldwide Off.
Important Information Warranty The 7344/7334 controllers are warranted against defects in materials and workmanship for a period of 1 year from the date of shipment, as evidenced by receipts or other documentation. National Instruments will, at its opti on, repair or replace equipment that proves to be defective during the warranty period.
© National Instruments Corporation v 7344/7334 Hardware User Manual Contents About This Manual Conventions ............ ........... .............. ............ ........... .............. ........... ............ .............. .... i x Related Documentation .
Contents 7344/7334 Hardware User Manual vi ni.com Onboard Programs (7344 only) ................. ........... .............. ............ .............. ........... ...... 4-5 Host Communications .............. ........... ............ .............. .
Contents © National Instruments Corporation vii 7344/7334 Hardware User Manual Glossary Index Figures Figure 3-1. PCI-7344 Parts Locator Diagram .......................................................... 3-1 Figure 3-2. PXI-7344 Parts Locator Diagram .
© National Instruments Corporation ix 7344/7334 Hardware User Manual About This Manual This manual describes the electrical and mechanical aspects of each controller in the 7344/7334 family a nd contains information concerning their operation and programming .
About This Man ual 7344/7334 Hardware User Manual x ni.com programs, subprograms, subroutines, device names, functions, operations, v ariables, file names and e xtensions, and code e xcerpts.
© National Instruments Corporatio n 1-1 7344/7334 Hardware User Manual 1 Introduction This chapter describes the FlexMotion 7344 and 7334 controllers and their operation. About the 7344/7334 Controller Thank you for purchasing a 7344/7334 con troller.
Chapter 1 Introduction 7344/7334 Hardware User Manual 1-2 ni.com Hardware The high-performance capabil ities of the 7344/7334 controllers are the result of an advanced dual-processor architecture usin.
Chapter 1 Introduction © National Instruments Corporatio n 1-3 7344/7334 Hardware User Manual ❑ 7344/7334 Hardware User Manual ❑ FlexMotion Software Reference Manual ❑ One of the follo wing sof.
Chapter 1 Introduction 7344/7334 Hardware User Manual 1-4 ni.com Optional Equipment National Instruments offers a variety o f products for use with the 7344/7334 controller, including cables, Universa.
© National Instruments Corporatio n 2-1 7344/7334 Hardware User Manual 2 Configuration and Installation This chapter describes how to configure and in stall your 7344/7334 controller. Software Installation Install your FlexMotion s oftware, along with your Motion VI l ibraries (if appropriate) before you in stall the 7344/7334 controll er.
Chapter 2 Configuration and Installation 7344/7334 Hardware User Manual 2-2 ni.com The following are general installation instructions, but consult your computer user manual or technical reference manual for specif ic instructions and warnings. Caution 7344/7334 controllers are sensiti ve electronic de v ices shipped in an antistatic bag.
Chapter 2 Configuration and Installation © National Instruments Corporatio n 2-3 7344/7334 Hardware User Manual 7. V isually verify the installation. 8. Plug in and turn on the chassis. Y our PXI-7344 controller is in stalled. ♦ FW -73 44 Note If you are not using the BP-1 battery pack, follow the instructions below .
© National Instruments Corporatio n 3-1 7344/7334 Hardware User Manual 3 Hardware Over view This chapter presents an overvi ew of the 7344/7334 controll er hardware functionality. Figures 3-1, 3-2, and 3-4 show the PCI-7344, PXI-7344, and PCI-73 34 parts locator diagrams, respectiv ely .
Chapter 3 Hardware Over view 7344/7334 Hardware User Manual 3-2 ni.com Figure 3-2. PXI-7344 Parts Locator Diagram Figure 3-3. FW-7344 Back Panel 1 Assembly Num ber Label 2 Serial Number Label 3A D S P.
Chapter 3 Hardware Over view © National Instruments Corporatio n 3-3 7344/7334 Hardware User Manual Figure 3-4. PCI-7334 Parts Locator Diagram User Connectors The 68-pin motion I/O co nnector provide.
Chapter 3 Hardware Over view 7344/7334 Hardware User Manual 3-4 ni.com The R TSI connector provides up to sev en tri ggers and one high-speed clock signal to facilitate synchronization bet ween multiple National Instrumen ts products.
© National Instruments Corporatio n 4-1 7344/7334 Hardware User Manual 4 Functional Over view This chapter presents an overview of th e motion control algorithms and capabilities of the 734 4/7334 controller.
Chapter 4 Functional Over view 7344/7334 Hardware User Manual 4-2 ni.com The DSP chip is a separate processor that operates i ndependently from the CPU but i s closely synchronized by an internal pack et-based command, data, and messaging ev ent stru cture.
Chapter 4 Functional Over view © National Instruments Corporatio n 4-3 7344/7334 Hardware User Manual Flash memory also allo ws objects such as programs and data arrays to be stored in non-volatile memory . It is possible to sav e the entire param eter state of the controller to the flash memory .
Chapter 4 Functional Over view 7344/7334 Hardware User Manual 4-4 ni.com Figure 4-2. Stepper Axis Resources The 7344/7334 controller supports axes with secondary output resources (D A Cs f or servo ax es or stepp er outputs).
Chapter 4 Functional Over view © National Instruments Corporatio n 4-5 7344/7334 Hardware User Manual Onboard Programs (7344 only) The 7344 controller has full onboard programm ability with the capability of executing up to 10 simul taneous motion programs in a real-time preemptive multitaskin g environment.
Chapter 4 Functional Over view 7344/7334 Hardware User Manual 4-6 ni.com Host Communications The host computer communicates with a 73 44/7334 controller through a number of memory port a ddresses on the host bus. The host b us can be any of the supported bus stan dards — PCI, PXI, or 1394.
© National Instruments Corporatio n 5-1 7344/7334 Hardware User Manual 5 Signal Connections This chapter describes how to make input an d output signal connections directly to the 7344/7334 and briefly describes the associated 7344/7334 I/O circuitry.
Chapter 5 Signal Connecti ons 7344/7334 Hardware User Manual 5-2 ni.com Figure 5-1 shows the pin assignments for the 68-pin moti on I/O connector on the 7344/7334 controller . A signal descripti on follows the connector pinout. In this chapter, lines abo ve signal names indicate that the signal is acti ve-low .
Chapter 5 Signal Connections © National Instruments Corporatio n 5-3 7344/7334 Hardware User Manual T able 5-1 describes the signals on the motion I/O conn ector . Table 5-1. Motion I/O Signal Connections Signal Name Reference Direction Description Axis <1.
Chapter 5 Signal Connecti ons 7344/7334 Hardware User Manual 5-4 ni.com Motion Axis Signals The following signals co ntrol the servo amplif ier or stepper driver: • Analog Output <1..4> (7344 on ly) — These 16-bit D AC outputs are typically the servo command outputs for each axis .
Chapter 5 Signal Connections © National Instruments Corporatio n 5-5 7344/7334 Hardware User Manual • Axis <1..4> Inhibit — Use the inhibit output signals to control the enable/inhibit function of a serv o amplifier or stepper dri ver .
Chapter 5 Signal Connecti ons 7344/7334 Hardware User Manual 5-6 ni.com Y ou can use software disabled limit and home inputs as general-purpose inputs. Y ou can read the status of these inputs at any time and set and change their polarity as required.
Chapter 5 Signal Connections © National Instruments Corporatio n 5-7 7344/7334 Hardware User Manual Encoder Signals The 7344/7334 controller offers four ch annels of single-ended quadrature encoder inputs.
Chapter 5 Signal Connecti ons 7344/7334 Hardware User Manual 5-8 ni.com Encoder <1..4> Index The Index input is primarily used wi th the Find Index function. Th is function uses the number of co unts per revolution (or linear distance) to initiate a search move that locates the index position.
Chapter 5 Signal Connections © National Instruments Corporatio n 5-9 7344/7334 Hardware User Manual Caution Use of an unshielded cable can permit noise to corrupt th e encoder signals resulting in lost counts and reduced motion system accurac y .
Chapter 5 Signal Connecti ons 7344/7334 Hardware User Manual 5-10 ni.com edge. Y ou can also use a trigger input as a latching general-purpose digital input by simply ignoring the captured position.
Chapter 5 Signal Connections © National Instruments Corporation 5-11 7344/7334 Hardware User Manual T rigger Input, Shutdown Input, and Breakpoint Output Circuits Figures 5-5, 5-6, and 5-7 show a simplified schem atic diagram of the circuits used by the trigger inpu ts, shutdown inputs, and breakpo int outputs for signal buffering.
Chapter 5 Signal Connecti ons 7344/7334 Hardware User Manual 5-12 ni.com Analog Inputs The 7344/7334 controller has the follo wing ADC input signals: • Analog Input <1..4> — The 7344/ 7334 controller includes an eight channel multiplex ed, 12-bit ADC capable of measuring ± 10 V , ±5 V , 0 – 10 V , and 0 – 5 V inputs.
Chapter 5 Signal Connections © National Instruments Corporation 5-13 7344/7334 Hardware User Manual scan rate performance. Properly enabled, the scan rate is h igh enough to support analog feedback at the highest PID sample rate. • Analog Reference — For con venience, 7.
Chapter 5 Signal Connecti ons 7344/7334 Hardware User Manual 5-14 ni.com Digital I/O Connector All the general-purp ose digital I/O lines on the 7344/7334 co ntrollers are available on a separate 68-pin dig ital I/O connector. The pin assignments for this connector are shown in Figure 5-8.
Chapter 5 Signal Connections © National Instruments Corporation 5-15 7344/7334 Hardware User Manual The 32-bit digital I/O po rt is configured in hardware as four 8-bit digital I/O ports. The bits in a port are typically cont rolled and read with byte-wide bitmapped commands.
Chapter 5 Signal Connecti ons 7344/7334 Hardware User Manual 5-16 ni.com R TSI Signal Considerations The 7344/7334 motion controll ers allow you to use the RTSI signals as sources for trigger inputs, or as destinations for breakpoint outputs and encoder signals.
© National Instruments Corporation A-1 7344 /7334 Hardware User Manual A Specifications This appendix lists the hardware and software performance specifications for the 7344/7334 con troller . Ser vo Performance (7344 only) PID update rate range ....
Appendix A Specifications 7344/7334 Hardware User Manual A-2 ni.com Feedforward (Aff, Vff) gains . .........0 to 32,767 Velocity feedback (Kv) gain ...........0 to 32,767 Servo command analog outputs Voltage range............ .............. .........±10 V Resolution .
Appendix A Specifications © National Instruments Corporation A-3 7344 /7334 Hardware User Manual Voltage range ........ .............. ............ 0 to 5 V Output low voltage .................. < 0.6 V at 64 mA sink Output high voltage ........ .
Appendix A Specifications 7344/7334 Hardware User Manual A-4 ni.com Min pulse width ................... ........... .1 ms Control ...................... .......................Individual enable/disable, stop on input, prevent mo tion, Find Home Trigger inputs Number of inputs .
Appendix A Specifications © National Instruments Corporation A-5 7344 /7334 Hardware User Manual Analog inputs Number of inputs ....... ..................... 8, multiplexed Number for user signals ........... 4 Number for calibration ............ 4 Voltage range (programmable) .
Appendix A Specifications 7344/7334 Hardware User Manual A-6 ni.com Polarity ............ .............. .............. .... Programmable, active-high or active-low Outputs Voltage range............ .............. .........0 to 5 V Output low voltage .
Appendix A Specifications © National Instruments Corporation A-7 7344 /7334 Hardware User Manual Physical Dimensions (Not Including Connectors) PCI-7344/7334 ....................................... 17.5 by 9.9 cm (6.9 by 3.9 in.) PXI-7344 ...........
© National Instruments Corporation B-1 7344 /7334 Hardware User Manual B Cable Connector Descriptions This appendix describes the connector pinout for the cables that connect to your 7344/ 7334 boards. Figures B-1 and B-2 sho w the pin assignments for the stepp er and servo 50-pin motion connectors.
Appendix B Cable C onnector Descripti ons 7344/7334 Hardware User Manual B-2 ni.com Figure B-2. 50-Pin Servo Connector Pin Assignment (7344 only) Digital Ground Axis 4 Inhibit Trigger/Breakpoint 4 Axi.
© National Instruments Corporation C-1 7344 /7334 Hardware User Manual C T echnical Support Resources W eb Support National Instruments W eb support is your first stop for help in solving installation, configuration, and application pro blems and questions.
Appendix C T echnical Support Resources 7344/7334 Hardware User Manual C-2 ni.com W orldwide Support National Instruments has of fices located around the world to help address your support needs. Y ou can access our branch of fice W eb sites from the W orldwide Of fices section of ni.
© National Instruments Corporation G-1 7344/7334 Hardware User Manual Glossar y Pref ix Meanings V alue p- pico- 10 – 12 n- nano- 10 – 9 µ- mi cro- 10 – 6 m- milli - 10 – 3 c- centi 10 – 2.
Glossary 7344/7334 Hardware User Manual G-2 ni.com A A amperes A/D analog-to-digital absolute mode treat the tar get p osition loaded as position relativ e to zero ( 0) while making am o v e absolute position position relativ e to zero acceleration/ deceleration a measurement of the change in velocity as a f unction of time.
Glossary © National Instruments Corporation G-3 7344/7334 Hardware User Manual Axis <1..4> Re verse Limit Input axis 1 through 4 rev erse/co unter-clockwise limit input B bb i t — one binary dig it, either 0 o r 1 base address memory address that serves as the starting address for pro grammable or I/O bus re gisters.
Glossary 7344/7334 Hardware User Manual G-4 ni.com D D A C Digital-to-Ana log Con verter DC direct current dedicated assigned to a particu lar function DGND dig ital ground signal digital I/O port a g.
Glossary © National Instruments Corporation G -5 7344/7334 Hardware User Manual following error trip point the dif ference between the instantaneous commanded trajectory position and the feedback pos.
Glossary 7344/7334 Hardware User Manual G-6 ni.com I/O input/output — the transfer of data to and from a computer s ystem in v olving communications channels, operator interface de vices, and/or motion control interfaces in verting the po larity of a switch (limi t switch, home switch, and so on) in active state.
Glossary © National Instruments Corporation G -7 7344/7334 Hardware User Manual modulo position treat the position as within the range of total quadrature counts per rev olution fo r an axis N noise .
Glossary 7344/7334 Hardware User Manual G-8 ni.com PWM Pulse W idth M odulation — a method of contro lling the av e rage current in a motor phase winding by v arying the on-time (duty cycle) of tran.
Glossary © National Instruments Corporation G -9 7344/7334 Hardware User Manual T toggle changing state from high to lo w , back to high, and so on torque force tending to produce rotation trapezoida.
© National Instruments Corporatio n I-1 7344/7334 Hardware User Manual Index Numbers +5 V signal. See Host +5 V signal. 7344/7334 controllers. See also functi onal overview; hardware.
Index 7344/7334 Hardware User Manual I-2 ni.com B breakpoint outputs output circuit (figure), 5-11 wiring concerns, 5-10 Breakpoint<1..4> signal description, 5-3 purpose and use, 5-10 C cable co.
Index © National Instruments Corporatio n I-3 7344/7334 Hardware User Manual PXI-7344 parts locator dia gram (figure), 3-2 user connectors, 3-3 to 3-4 Host +5 V signal description (table), 5-3 purpos.
Index 7344/7334 Hardware User Manual I-4 ni.com P parts locator diagrams FW-7344 back panel, 3-2 PCI-7334 parts locator diagram (figure), 3-3 PCI-7344, 3- 1 PXI-7344, 3-2 physical specifications, A-7 .
Index © National Instruments Corporatio n I-5 7344/7334 Hardware User Manual W Web support from National Instrumen ts, C-1 wiring concerns analog inputs, 5-13 breakpoint outputs, 5-10 encoder signals.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il National Instruments 7344 è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del National Instruments 7344 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso National Instruments 7344 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul National Instruments 7344 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il National Instruments 7344, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del National Instruments 7344.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il National Instruments 7344. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo National Instruments 7344 insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
