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Glossary

NI 951x User Manual

G-2

ni.com

D

dedicated

Assigned to a particular function.

Direction output

Command signal for stepper motors, indicates the commanded direction of 
motion, either forward or reverse.

drive

Electronic signal amplifier that converts motor control command signals 
into higher-voltage signals suitable for driving motors.

driver

A hardware device that provides signals or electrical current to activate a 
transmission line.

E

encoder

A device that translates mechanical motion into electrical signals; used for 
monitoring position or velocity in a closed-loop system.

encoder resolution

The number of lines per unit of measure. Units can be inches, centimeters, 
revolutions, and so on.

F

filtering

A type of signal conditioning that removes unwanted noise from the signal 
being measured.

full-step

The coarsest mode of stepper motor driving that occurs when fully 
energizing the windings.

H

half-step

A stepper motor mode. For a two phase motor, half-step mode is done by 
alternately energizing two windings and then only one. In half step mode, 
alternate steps are strong and weak but there is significant improvement in 
low-speed smoothness over the full-step mode.

high

An input or output is high if the voltage is higher than the specified digital 
logic high level.

Содержание NI 951x

Страница 1: ...Motion Control NI 951x User Manual NI 951x User Manual July 2009 372153B 01...

Страница 2: ...Lebanon 961 0 1 33 28 28 Malaysia 1800 887710 Mexico 01 800 010 0793 Netherlands 31 0 348 433 466 New Zealand 0800 553 322 Norway 47 0 66 90 76 60 Poland 48 22 328 90 10 Portugal 351 210 311 210 Russ...

Страница 3: ...tocopying recording storing in an information retrieval system or translating in whole or in part without the prior written consent of National Instruments Corporation National Instruments respects th...

Страница 4: ...e encouraged to try to correct the interference by one or more of the following measures Reorient the antenna of the receiver the device suffering interference Relocate the transmitter the device gene...

Страница 5: ...es in Scan Interface Mode 1 2 Using the NI 951x Modules in LabVIEW FPGA Interface Mode 1 3 Safety Information 1 3 Special Conditions for Marine Applications 1 3 Optional Equipment 1 4 Chapter 2 Hardwa...

Страница 6: ...oder Phase A Phase B 3 12 Encoder Index 3 12 Encoder Input Circuit 3 13 Position Capture Input and Position Compare Output 3 14 Digital I O Signals 3 15 Digital Inputs 3 15 Digital Outputs 3 17 Chapte...

Страница 7: ...ontents National Instruments Corporation vii NI 951x User Manual Appendix A Specifications Appendix B Position Command Connections Appendix C Technical Support and Professional Services Glossary Index...

Страница 8: ...rmation This icon denotes a caution which advises you of precautions to take to avoid injury data loss or a system crash When this symbol is marked on a product refer to the Safety Information section...

Страница 9: ...g to Start All Programs NI Motion Documentation LabVIEW NI SoftMotion Module Help Use this help file to learn about using NI SoftMotion in LabVIEW including information about function blocks and using...

Страница 10: ...al encoder inputs for position feedback and 0 to 30 V digital input and digital output lines Refer to Chapter 3 Signal Connections for more information about the signals available on each module The N...

Страница 11: ...e mode you must have the following items The following software packages and documentation NI SoftMotion This software package contains the following NI software products NI SoftMotion software NI Mot...

Страница 12: ...tware package contains the following NI software products NI SoftMotion software NI Motion driver software LabVIEW Development System LabVIEW Real Time Module LabVIEW FPGA Module NI RIO driver softwar...

Страница 13: ...mber 780552 01 NI 951x Cable and Terminal Block Bundle Connects the NI 951x module with the 37 pin spring terminal blocks NI part number 780553 01 DSUB and MDR Solder Cup Connectors Simplifies custom...

Страница 14: ...Manual 2 Hardware Overview This chapter presents an overview of the National Instruments 951x drive interface module hardware including connections and connector pin assignments The following figure...

Страница 15: ...otion Module book of the LabVIEW Help for information about chassis slot or software restrictions 2 Connect the module to a drive and other I O using the NI 9512 to P7000 Stepper Drives Connectivity B...

Страница 16: ...up input provided on the DSUB or MDR connector Do not connect more than one external power supply to the module Encoder optional Stepper Motor Step CW Direction CCW Drive Fault Drive Enable Step CW Di...

Страница 17: ...s specified in the chassis documentation Note Refer to the NI SoftMotion Module book of the LabVIEW Help for information about chassis slot or software restrictions 2 Connect the module to a 37 pin te...

Страница 18: ...to the Vsup input provided on the DSUB or MDR connector Do not connect more than one external power supply to the module Caution Do not connect anything to pins marked Reserved Encoder Servo Motor Dr...

Страница 19: ...O 1 Install the module in the chassis as specified in the chassis documentation Note Refer to the NI SoftMotion Module book of the LabVIEW Help for information about chassis slot or software restricti...

Страница 20: ...ut provided on the DSUB or MDR connector Do not connect more than one external power supply to the module Caution Do not connect anything to pins marked Reserved Encoder 0 Servo Motor Drive Command Dr...

Страница 21: ...nection The 20 pin MDR connector includes incremental encoder feedback inputs a 5 V output for encoder power home limit and position compare inputs an output for position compare an additional input f...

Страница 22: ...Note Refer to Appendix B Position Command Connections for position command signal information and information about connecting the NI 9512 module to position command drives Table 2 1 NI 9512 DSUB Cont...

Страница 23: ...Assignments Forward Limit Home COM Digital Input 0 COM Encoder 0 Index Encoder 0 Index COM 5 V OUT Position Compare 1 2 3 4 5 6 7 8 9 10 20 11 12 13 14 15 16 17 18 19 COM Reverse Limit Vsup Encoder 0...

Страница 24: ...s and connection accessory pin assignments Caution Do not connect anything to pins marked Reserved Table 2 2 NI 9514 DSUB Control Connector Pin Assignments Connector Pin Signal 1 Drive Command COM 2 D...

Страница 25: ...Assignments Forward Limit Home COM Digital Input 0 COM Encoder 0 Index Encoder 0 Index COM 5 V OUT Position Compare 1 2 3 4 5 6 7 8 9 10 20 11 12 13 14 15 16 17 18 19 COM Reverse Limit Vsup Encoder 0...

Страница 26: ...ter 4 Accessory and Cable Connections for cabling options and connection accessory pin assignments Table 2 3 NI 9516 DSUB Control Connector Pin Assignments Connector Pin Signal 1 Drive Command COM 2 D...

Страница 27: ...mit Home COM Digital Input 0 Encoder 1 Phase B Encoder 0 Index Encoder 0 Index COM 5 V OUT Position Compare 1 2 3 4 5 6 7 8 9 10 20 11 12 13 14 15 16 17 18 19 Reverse Limit Encoder 1 Phase A Vsup Enco...

Страница 28: ...ve enable output is active Encoder Active The Encoder Active LED green has three states for encoder and Vsup status Off The power supply Vsup is not connected You must connect a power supply to receiv...

Страница 29: ...both the limits and home input are not active Lit The power supply Vsup is connected and the forward limit reverse limit or home input is active Axis Fault The Axis Fault LED red has two states to ind...

Страница 30: ...Signal Signal Name Signal Overview Stepper Command Signals Step CW Step CW Configurable Step Direction or CW CCW output mode Configurable single ended or differential output type 5 MHz max pulse rate...

Страница 31: ...A Secondary encoder for position or velocity feedback RS 422 differential compatible with single ended encoders 20 106 counts per second maximum 100 ns minimum pulse width differential inputs 400 ns...

Страница 32: ...minimum pulse width Digital Inputs Digital Input 0 General purpose digital inputs Configurable for sinking or sourcing 0 to 30 V input range 100 s minimum pulse width Digitally filtered Digital Input...

Страница 33: ...e Stepper Command Signals Step CW and Direction CCW These signals are the NI 9512 drive interface module stepper command outputs The stepper output mode is software configurable for compatibility with...

Страница 34: ...step and direction output circuits can be configured in software for either single ended or differential output type Refer to the NI SoftMotion LabVIEW Help for more information about stepper motor s...

Страница 35: ...y the drive manufacturer Figure 3 3 shows a single ended connection example Figure 3 3 Opto Isolated Step and Direction Output Connection Caution If the optocoupler input does not include its own curr...

Страница 36: ...ve during normal operation and deactivated upon a fault or error condition Refer to the NI SoftMotion Module book of the LabVIEW Help for a list of faults errors and other conditions that deactivate t...

Страница 37: ...able Circuit Configured for Sourcing Figure 3 5 Drive Enable Circuit Configured for Sinking Drive Enable or Digital Output COM NI 951x NI 951x Vsup NPN Sinking Input Device Configured For Sourcing Sin...

Страница 38: ...lter frequencies Active limit and home signals should remain active to prevent motion from proceeding further into the limit Pulsed limit signals stop motion but they do not prevent further motion in...

Страница 39: ...ing output device Figure 3 6 Limit Input Configured for Sinking Figure 3 7 Limit Input Configured for Sourcing PNP Sourcing Output Device COM NI 951x V Reference V Out Configured For Sinking Limit Hom...

Страница 40: ...s two encoder channels that allow for dual loop feedback which enhances system stability and precision and provides backlash compensation The Encoder 0 channel consists of a Phase A a Phase B and an I...

Страница 41: ...increment of position in closed loop motion systems Note To determine your encoder counts per revolution multiply the specified encoder counts per revolution by four For example a 500 line encoder ha...

Страница 42: ...encoder power You also can set the encoder active state for Phases A Phase B and Index to high or low using software Refer to the NI SoftMotion Module book of the LabVIEW Help for more information Tip...

Страница 43: ...off state of the open collector driver A common method to achieve this is by adding a pull up resistor to the output Refer to the Motion I O section of Appendix A Specifications for information about...

Страница 44: ...x Connections section of Chapter 2 you must map an available digital input in software Refer to the NI SoftMotion LabVIEW Help for more information about mapping digital inputs and digital outputs to...

Страница 45: ...als to a sinking output device Figure 3 13 Digital Input Configured for Sinking Figure 3 14 Digital Input Configured for Sourcing PNP Sourcing Output Device COM NI 951x V Reference V Out Configured Fo...

Страница 46: ...l outputs with an output voltage range of 0 to 30 V Digital Output Circuit You can configure the active state of the digital outputs in software for on or off and the digital output circuit can be con...

Страница 47: ...tputs to a sinking input device Figure 3 18 shows an example of wiring the digital outputs to a sourcing input device Figure 3 17 Digital Output Circuit Configured for Sourcing Figure 3 18 Digital Out...

Страница 48: ...block and cable for connecting the NI 9512 MDR connector to other I O Complete the following steps to connect the NI 9512 drive interface module to the P70530 DC drive or the P70360 AC drive and othe...

Страница 49: ...k or custom cable 6 Connect the drive power supply to the P7000 drive 7 Update the axis configuration settings in software for proper operation with the P7000 drives Refer to NI 951x to P7000 Drive Co...

Страница 50: ...Drive Connection Diagram 1 C Series Chassis 2 NI 9512 MDR Connector 3 NI 9512 DSUB Connector 4 NI 9512 Module 5 Stepper Motor 6 NI 9512 to P7000 Direct Connect Cable 7 P7000 Series Stepper Drive 8 P7...

Страница 51: ...r Figure 4 2 NI 9512 37 Pin Terminal Block MDR Only Pin Assignments 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 GND 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 Forward Limit Home COM Dig...

Страница 52: ...ure 4 4 Figure 4 5 and Figure 4 6 show the pin assignments for the NI 951x to 37 pin terminal blocks Note When connecting only the MDR connector to the terminal block all DSUB signals on the terminal...

Страница 53: ...er 0 Phase A Encoder 0 Phase A Encoder 0 Phase B Position Capture Encoder 0 Phase B Reserved Reserved COM Drive Enable Digital Input 3 Digital Input 2 Direction CCW Step CW Indicates DSUB connector si...

Страница 54: ...to chassis ground to minimize noise and signal crosstalk Use a separate power supply for the CompactRIO chassis and the NI 951x module s to isolate the I O from the controller Tie the Vsup cable shiel...

Страница 55: ...input Caution Failure to follow these guidelines may result in motion that stops at but then travels through a limit potentially damaging the motion system Limits that are wired incorrectly may preven...

Страница 56: ...ugh current to drive typical motor brakes For this reason the NI 951x digital outputs must not be used to directly control motor brakes However you can use the NI 951x digital outputs to control exter...

Страница 57: ...n loop and torque loop Control loop rate1 20 kHz max position loop Servo control loop modes PID PIVff and Dual Loop Motion Command Signals Stepper outputs Output type Programmable single ended or diff...

Страница 58: ...ction or CW CCW Active state Programmable high or low Servo command analog outputs Voltage range 10 V relative to Drive Command COM Resolution 16 bits 0 000305 V LSB monotonic Max output current 2 mA...

Страница 59: ...12 V Input current at 5 V 1 mA Min pulse width2 Differential 100 ns Single ended 400 ns Max count rate Differential 20 106 counts sec Single ended 5 106 counts sec Forward reverse and home inputs Inpu...

Страница 60: ...rising edge or falling edge Position compare outputs High VOH 5 25 V max Sourcing 12 mA 3 7 V min Sourcing 4 mA 3 9 V min Low VOL Sinking 12 mA 0 7 V max Sinking 4 mA 0 5 V max Compare mode Programmab...

Страница 61: ...9 to 30 V Continuous output current I0 on each channel 100 mA max Output impedance R0 0 3 max Output voltage V0 sourcing Vsup I0R0 Output voltage V0 sinking I0R0 Min output pulse width 100 s Leakage c...

Страница 62: ...u need to clean the module wipe it with a dry towel Note For two dimensional drawings and three dimensional models of the C Series module and connectors visit ni com dimensions and search by module nu...

Страница 63: ...ical equipment for measurement control and laboratory use IEC 61010 1 EN 61010 1 UL 61010 1 CSA 61010 1 Note For UL and other safety certifications refer to the product label or the Online Product Cer...

Страница 64: ...to 500 Hz Sinusoidal IEC 60068 2 6 5 g 10 to 500 Hz Operating shock IEC 60068 2 27 30 g 11 ms half sine 50 g 3 ms half sine 18 shocks at 6 orientations Environmental National Instruments C Series modu...

Страница 65: ...t Web page at ni com environment This page contains the environmental regulations and directives with which NI complies as well as other environmental information not included in this document Waste E...

Страница 66: ...t the NI 9512 drive interface module to p command drives and other I O 1 Install the module in the chassis as specified in the chassis documentation Note Refer to the NI SoftMotion Module book of the...

Страница 67: ...o Alarm Servo On Drive Enable DSUB Connector Forward Reverse Limit Home MDR Connector NI 9512 Position Command Drive Motor Encoder Phase A B Index optional Limit and Home Sensors Power Supply Vsup NI...

Страница 68: ...abVIEW Help for more information about mapping digital inputs and digital outputs Refer to Chapter 3 Signal Connections for information about other NI 9512 module signals The following inputs are driv...

Страница 69: ...rvice Program Membership This program entitles members to direct access to NI Applications Engineers via phone and email for one to one technical support as well as exclusive access to on demand train...

Страница 70: ...by visiting ni com certification Calibration Certificate If your product supports calibration you can obtain the calibration certificate for your product at ni com calibration If you searched ni com...

Страница 71: ...power to operate the motor in response to control signals axis Unit that controls a motor or any similar motion or control device C CCW counterclockwise Implies direction of motor rotation closed loo...

Страница 72: ...ng position or velocity in a closed loop system encoder resolution The number of lines per unit of measure Units can be inches centimeters revolutions and so on F filtering A type of signal conditioni...

Страница 73: ...tablish a reference position L limit switch end of travel position input Sensors that alert the control electronics that the physical end of travel is being approached and that the motion should stop...

Страница 74: ...tor drives that accept step and direction CW CCW information to drive a servo motor PID control loop proportional integral derivative control loop A control method in which the controller output is pr...

Страница 75: ...to ground sourcing device A device that provides a path to supply Step output Command signal for stepper motors each step produces a pulse on the step output leading to a step or microstep of the mot...

Страница 76: ...4 NI 9514 figure 2 5 NI 9516 2 6 NI 9516 figure 2 7 position capture input 4 7 Step CW signal 3 5 connectors NI 9512 2 9 NI 9514 2 11 NI 9516 2 13 conventions used in the manual ix CW signal See Step...

Страница 77: ...table 3 2 Encoder 0 Phase B signal description table 3 2 Encoder 1 Phase A signal description table 3 2 Encoder 1 Phase B signal description table 3 2 encoder active LED 2 15 Encoder Index signal pur...

Страница 78: ...n diagram figure 2 3 connections 2 2 DSUB connector 2 9 MDR connector 2 10 NI 9514 connection diagram figure 2 5 connections 2 4 DSUB connector 2 11 MDR connector 2 12 NI 9516 connection diagram figur...

Страница 79: ...requirements max A 5 servo performance A 1 stepper performance A 1 Step CW signal connections 3 5 description table 3 1 output circuit 3 5 purpose and use 3 4 stepper drive command signals 3 4 P7000 c...

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