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Chapter 3

Hardware Overview

Figure 3-2.

NI PXI-7340 Left Side

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Identification Number Used in Australia

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Symbol Indicating FFC Compliance

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Board Type Label

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Assembly Number Label

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Symbol to Alert User to Read the Manual

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N114

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Содержание PXI-7340

Страница 1: ...PXI 7342...

Страница 2: ...Motion Control National Instruments 7340 User Manual and Specifications NI 7340 User Manual and Specifications March 2013 370838B 01...

Страница 3: ...and current events National Instruments Corporate Headquarters 11500 North Mopac Expressway Austin Texas 78759 3504 USA Tel 512 683 0100 For further support information refer to the Technical Support...

Страница 4: ...es National Instruments shall not be liable for any delay in performance due to causes beyond its reasonable control The warranty provided herein does not cover damages defects malfunctions or service...

Страница 5: ...RY TO A HUMAN 2 IN ANY APPLICATION INCLUDING THE ABOVE RELIABILITY OF OPERATION OF THE SOFTWARE PRODUCTS CAN BE IMPAIRED BY ADVERSE FACTORS INCLUDING BUT NOT LIMITED TO FLUCTUATIONS IN ELECTRICAL POWE...

Страница 6: ...Installation Software Installation 2 1 Controller Configuration 2 1 Safety Information 2 1 Electromagnetic Compatibility Information 2 3 Hardware Installation 2 3 PXI Motion Controllers 2 4 PCI Motion...

Страница 7: ...4 8 Wiring Concerns 4 8 Encoder Input Circuit 4 9 Trigger Inputs Shutdown Input and Breakpoint Outputs 4 9 Wiring Concerns 4 10 Trigger Input Shutdown Input and Breakpoint Output Circuits 4 10 Analog...

Страница 8: ...rvo valves and other servo devices Servo axes always operate in closed loop mode These axes use quadrature encoders or analog inputs for position and velocity feedback and provide analog command outpu...

Страница 9: ...ta acquisition DAQ products Using the RTSI bus you can easily synchronize several functions to a common trigger or timing event across multiple motion IMAQ or DAQ devices What You Need to Get Started...

Страница 10: ...National Instruments motion control hardware NI Motion Assistant offers a point and click interface for creating motion control sequences quickly and easily When you have created a motion task you can...

Страница 11: ...ni com Chapter 1 Introduction Related Documentation The following documents contain information you might find helpful as you read this manual NI Motion Help NI Motion C Reference Help NI Motion VI H...

Страница 12: ...ers for motion I O configuration The PXI 7340 and PCI 7340 controllers are fully compatible with the industry standard PXI Specification Revision 2 0 and the PCI Local Bus Specification Revision 2 2 r...

Страница 13: ...n has no influence Typical level for sealed components or coated PCBs Pollution Degree 2 means that only nonconductive pollution occurs in most cases Occasionally however a temporary conductivity caus...

Страница 14: ...e appropriate link in the Certification column Electromagnetic Compatibility Information This product was tested and complies with the regulatory requirements and limits for electromagnetic compatibil...

Страница 15: ...installation is complete 2 Choose an unused peripheral slot and remove the filler panel 3 Touch a metal part on the chassis to discharge any static electricity 4 Insert the NI 7340 motion controller...

Страница 16: ...3 V or 5 V PCI slot and remove the corresponding expansion slot cover on the back panel of the computer 5 Gently rock the controller into the slot The connection may be tight but do not force the cont...

Страница 17: ...e National Instruments PXI PCI 7340 hardware functionality Figures 3 1 and 3 2 show the NI PXI 7340 right and left sides respectively Figure 3 1 NI PXI 7340 Right Side 1 Serial Number Label 2 Injector...

Страница 18: ...dware Overview Figure 3 2 NI PXI 7340 Left Side 1 Identification Number Used in Australia 2 Symbol Indicating FFC Compliance 3 Board Type Label 4 Assembly Number Label 5 Symbol to Alert User to Read t...

Страница 19: ...ltiple National Instruments products The PXI 7340 RTSI enabled connection provides up to eight triggers and one PXI star trigger to facilitate synchronization between multiple National Instruments PXI...

Страница 20: ...runs a multitasking real time operating system and handles host communications command processing multi axis interpolation error handling general purpose digital I O and overall motion system integrat...

Страница 21: ...embedded firmware including the RTOS and DSP code is stored in flash memory you can upgrade the onboard firmware contents in the field for support and new feature enhancement Flash memory also allows...

Страница 22: ...ms in which two DAC outputs can be configured with different torque limits and or offsets The NI 7340 motion controller also supports secondary feedback resources called encoders for axes defined as s...

Страница 23: ...tore and run onboard programs and buffers from RAM or save them to flash ROM The NI 7340 motion controller has 64 KB of RAM and 128 KB of ROM that is divided into two 64 KB sectors for program and buf...

Страница 24: ...nterface UMI units and drives Note The NI 7340 motion controller does not provide isolation between circuits Caution Turn off power to all devices when connecting or disconnecting the NI 7340 motion c...

Страница 25: ...hibit Trigger 1 Axis 1 Home Switch Digital Ground Digital Ground Axis 1 Dir CCW 1 35 2 36 3 37 4 38 5 39 6 40 7 41 8 42 9 43 10 44 11 45 12 46 13 47 14 48 15 49 16 50 17 51 18 52 19 53 20 54 21 55 22...

Страница 26: ...d Input Home switch Axis 1 4 Forward Limit Switch Digital Ground Input Forward clockwise limit switch Axis 1 4 Reverse Limit Switch Digital Ground Input Reverse counter clockwise limit switch Axis 1 4...

Страница 27: ...microstep produces a pulse on the step output The direction output signal level indicates the command direction of motion either forward or reverse CW and CCW mode produces pulses steps on the CW out...

Страница 28: ...ure 4 2 Step Direction and Inhibit Output Circuit Limit and Home Inputs The following signals control limit and home inputs Axis 1 4 Forward Limit Input Axis 1 4 Home Input Axis 1 4 Reverse Limit Inpu...

Страница 29: ...e negative end of travel Caution Failure to follow these guidelines may result in motion that stops at but then travels through a limit potentially damaging the motion system Miswired limits may preve...

Страница 30: ...tal potentiometer encoder inputs or as a master encoder input for master slave electronic gearing applications The encoder channels Encoder 1 4 are implemented in an FPGA and are high performance with...

Страница 31: ...er polarity for phases A B and Z in MAX Wiring Concerns The encoder inputs are connected to quadrature decoder counter circuits It is very important to minimize noise at this interface Excessive noise...

Страница 32: ...applications ranging from simple position tagging of sensor data to complex camming systems with advance retard positioning and registration An available NI 7340 motion controller position mode is to...

Страница 33: ...e motor driver amplifier signal and encoder signal connections Wiring these signals near each other can cause faulty operation Caution Excessive input voltages can cause erroneous operation and or com...

Страница 34: ...ou can configure each ADC channel for motion feedback simple A D conversion or both You can read the digital value of analog voltage on any of the eight ADC channels of the controller Table 4 3 shows...

Страница 35: ...the analog inputs Tip Refer to the Measuring Floating Nonreferenced Sources section of the Field Wiring and Noise Considerations for Analog Signals NI Developer Zone document at ni com zone for more...

Страница 36: ...rt 3 bit 3 Digital Ground Port 3 bit 0 Port 2 bit 7 Port 2 bit 6 Digital Ground Digital Ground Digital Ground Port 2 bit 1 Port 2 bit 0 Port 1 bit 7 Digital Ground Port 1 bit 4 Port 1 bit 3 Digital Gr...

Страница 37: ...configured in software and are in no way associated with the PID servo control loop Refer to the NI Motion Help for more information RTSI Connector The physical RTSI bus interface varies depending on...

Страница 38: ...0 counts s Acceleration deceleration1 244 to 512 000 000 counts s2 at a PID update rate of 250 s S Curve time range 1 to 32 767 samples Following error range 1 to 32 767 counts and disabled Gear ratio...

Страница 39: ...ts Maximum pulse rate 4 MHz full half and microstep Minimum pulse width 120 ns at 4 MHz Step output mode Step and direction or CW CCW Voltage range 0 to 5 V Output low voltage 0 6 V at 64 mA sink Outp...

Страница 40: ...ders 1 through 4 Voltage range 0 to 5 V Input low voltage 0 8 V Input high voltage 2 V Polarity Programmable active high or active low Minimum pulse width 100 ns Capture latency 100 ns Capture accurac...

Страница 41: ...Output current 5 mA Resolution 16 bits no missing codes Monotonic Guaranteed Analog reference output 7 5 V nominal 5 mA Digital I O Ports 4 8 bit ports Line direction Individual bit programmable Input...

Страница 42: ...is completely dry and free from contaminants before returning it to service Maximum Working Voltage Channel to earth 12 V Installation Category I signal voltage plus common mode voltage Channel to ch...

Страница 43: ...ISPR 11 Group 1 Class A emissions EN 55022 CISPR 22 Class A emissions EN 55024 CISPR 24 Immunity AS NZS CISPR 11 Group 1 Class A emissions AS NZS CISPR 22 Class A emissions FCC 47 CFR Part 15B Class A...

Страница 44: ...s substances from our products is beneficial to the environment and to NI customers For additional environmental information refer to the Minimize Our Environmental Impact web page at ni com environme...

Страница 45: ...point 2 Axis 2 Home Switch Digital Ground Digital Ground Axis 2 Dir CCW Axis 1 Inhibit Trigger Breakpoint 1 Axis 1 Home Switch Digital Ground Digital Ground Axis 1 Dir CCW Host 5 V Axis 4 Forward Limi...

Страница 46: ...og Output Ground Host 5 V Axis 4 Forward Limit Switch Axis 4 Encoder Index Axis 4 Encoder Phase A Analog Output 4 Axis 3 Reverse Limit Switch Axis 3 Forward Limit Switch Axis 4 Reverse Limit Switch Ax...

Страница 47: ...chase of most software products and bundles including NI Developer Suite NI also offers flexible extended contract options that guarantee your SSP benefits are available without interruption for as lo...

Страница 48: ...ue goes high 1 active low A signal is active when its value goes low 0 address Character code that identifies a specific location or series of locations in memory or on a host PC bus system amplifier...

Страница 49: ...Eight related bits of data an eight bit binary number Also used to denote the amount of memory required to store one byte of data C CCW counter clockwise implies direction of rotation of the motor cl...

Страница 50: ...an index output the encoder resolution can be referred to as lines per revolution F f farad FIFO first in first out filtering A type of signal conditioning that filters unwanted signals from the sign...

Страница 51: ...n absolute position frame of reference host computer Computer into which the motion control board is plugged I I O input output the transfer of data to and from a computer system involving communicati...

Страница 52: ...ner microstep locations that greatly smooth motor running operation and increase the resolution or number of discrete positions that a stepper motor can attain in each revolution modulo position Treat...

Страница 53: ...g of eight lines of digital input and or output position breakpoint Position breakpoint for an encoder can be set in absolute or relative quadrature counts When the encoder reaches a position breakpoi...

Страница 54: ...National Instruments timing bus that connects devices directly by means of connectors on top of the devices for precise synchronization of functions S s seconds servo Specifies an axis that controls a...

Страница 55: ...mode Move the axis continuously at the specified velocity W watchdog A timer task that shuts down resets the motion control board if any serious error occurs word The standard number of bits that a pr...

Страница 56: ...ctory generators 3 4 trigger inputs 4 9 user connectors 3 3 using RTSI 1 2 A Analog Input 1 4 4 11 Analog Input Ground 4 12 Analog Output 1 4 4 4 Analog Output Ground 4 4 Analog Reference 4 12 analog...

Страница 57: ...rcuit 4 5 4 6 limit inputs ground connections 4 6 M memory buffer storage 3 7 motion I O connector pin assignments 4 2 signal descriptions 4 3 N National Instruments support and services C 1 O onboard...

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