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National Instruments MID-7654 manual

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Table of contents for the manual

  • Page 1

    National Instruments™, NI™, and ni.com™ are t rademarks of National Instruments Corporation. Product and company names mentioned herein are trademarks or tra de names of their respectiv e companies. 322691B-01 Copyright © 2000, 2001 National Instr uments Corp. All rig hts reserved. June 2001 USER GUIDE MID-7654/7652 S ER VO P OWER M OTOR D R[...]

  • Page 2

    MID-7654/7652 Servo Power Motor Drive User Gu ide 2 ni.com Modifying the Power Entry Module .................. ........... .............. ........... ..30 Replacing a Fuse.......... ........... .............. ........... .............. ............ .......30 Changing the Line Voltage......................... ........... .............. .............[...]

  • Page 3

    © National Instruments Corporatio n 3 MID-7654/7652 Servo Power Motor Drive User Guide The MID-7654/7652 simplif ies your field wiring through separate encoder , limit switch, and motor power remov able scre w terminal connector blocks for each axis. The terminal blocks do not require any special wiring tools for installation. The MID-7654/76 52 c[...]

  • Page 4

    MID-7654/7652 Servo Power Motor Drive User Gu ide 4 ni.com qualified to do so and disconnect all field po wer prior to removing cov ers or shields. • Do not operate damaged equip ment. The safety protection features built into this device can become impaired if the device becomes damaged in any way . If the de vice is damaged, turn the device of [...]

  • Page 5

    © National Instruments Corporatio n 5 MID-7654/7652 Servo Power Motor Drive User Guide Front Panel Switches Figure 1 shows the front panel for y our MID-7654/7652. The DIP switches are shown with the detachable metal cover plate removed. Figur e 1. MID-7654/7652 Front Panel There are two rocker switches on the MID-7654/7652 front panel : A C PO WE[...]

  • Page 6

    MID-7654/7652 Servo Power Motor Drive User Gu ide 6 ni.com The EN ABLE switch en ables or inhibits the servo amplifiers. If the EN ABLE switch is in the inhibit position (O FF), the amplifier output stages are inhibited and the yello w LED s for all ax es illuminate. See the Front Panel LEDs section of this guide for m ore information. Both the A C[...]

  • Page 7

    © National Instruments Corporatio n 7 MID-7654/7652 Servo Power Motor Drive User Guide Amplifier Fault Output LEDs The top row of the LED status array indicates the status of the amplifiers. A red LED indicates an overcurrent condition, a short circuit condition, an over temperature condi tion, or a problem with the motor bus voltage on that axis.[...]

  • Page 8

    MID-7654/7652 Servo Power Motor Drive User Gu ide 8 ni.com Front Panel DIP Switch Settings The MID-7654/7652 front panel has a detachable me tal plate that, when removed, provides access to one 4-position DIP switch bank and either four (MID-7654) or two (MID-7652) 9-position DIP switch bank s. Refer to Figure 1 for the location of these switches. [...]

  • Page 9

    © National Instruments Corporatio n 9 MID-7654/7652 Servo Power Motor Drive User Guide Inhibit Input Polarity Setting U s eD I Ps w i t c h1o nt h e4 - p o s i t i o nD I Ps w i t c hb a n kt og l o b a l l ys e tt h e polarity for the inhibit inpu t for all axes. Refer to Figures 1 and 3 for the location of this swit ch. The factory-default setti[...]

  • Page 10

    MID-7654/7652 Servo Power Motor Drive User Guid e 10 ni.com Limit Status LED Polarity Setting U s eD I Ps w i t c h3o nt h e4 - p o s i t i o nD I Ps w i t c hb a n kt og l o b a l l ys e tt h e polarity for the Limit Status LED. Refer to Figures 1 and 3 for the location of this switch . The factory-default setting is activ e-high. T ypically , you[...]

  • Page 11

    © National Instruments Corporatio n 11 MID-7654/7652 Servo Power Motor Drive User Guide Figure 4 illustrates the com mand voltage input to current output relationship for periods of tim e less than 2.7 seconds. Figure 4. Input V oltage to Output Current Relationship for Periods of Time Less Than 2.7 Seconds Figure 5 shows the command v o ltage inp[...]

  • Page 12

    MID-7654/7652 Servo Power Motor Drive User Guid e 12 ni.com The amplif ier peak and continuous current limits ha ve been factory set for 5 A continuous current output and 10 A peak current ou tput. V erify that these settings are appropriate for your applicatio n before powering your motors. Use DIP switches 1 through 4 on each of the 9-position DI[...]

  • Page 13

    © National Instruments Corporatio n 13 MID-7654/7652 Servo Power Motor Drive User Guide If you are connecting multiple m otors to your MID-7654/7652, verify that the total power dissipated by the motors at an y given time is less than the total po wer the dri ve can provide. If the total po wer requirement exceeds the capability of the d ri ve at [...]

  • Page 14

    MID-7654/7652 Servo Power Motor Drive User Guid e 14 ni.com Use the last DIP switch on each of the 9-position DIP switch bank s to set the motor inductance lev el for each axis. Refer to Figures 1 and 3 for the location of the of the motor inductance lev el switch. T able 7 shows the DIP switch settings for lo w and standard m otor inductance. Tabl[...]

  • Page 15

    © National Instruments Corporatio n 15 MID-7654/7652 Servo Power Motor Drive User Guide Back Panel Connector Wiring Figure 6 shows the MID -7654/7652 back panel connectors wi thout their rear guards. Figure 6. MID-7654/7652 Back Panel Connectors 1 Motion Controller Connector 2 Ana log Input Connector 3 Ana log Output Connector 4 T rigger Connector[...]

  • Page 16

    MID-7654/7652 Servo Power Motor Drive User Guid e 16 ni.com Caution Be sure to turn of f the EN ABLE and A C POWER switches for your MID-7654/7652 and host com puter and disconnect the unit from the power outlet before making connections to your mo tion controller . Warning The serv o motor connectors on this driv e are ener gized when the unit is [...]

  • Page 17

    © National Instruments Corporatio n 17 MID-7654/7652 Servo Power Motor Drive User Guide T erminal Block Wiring This section describes how to wire the terminal blocks on your MID-7654/7652. Ser vo Motor Power T erminal Blocks For motor power wiring, each MID-7654/7652 axis has a separate 5-position removable screw terminal block. Figure 7 shows a t[...]

  • Page 18

    MID-7654/7652 Servo Power Motor Drive User Guid e 18 ni.com Depending on your motor, you may need to rev erse the connectio ns shown in Figure 7, as there is no industry standard for di rection of mov ement relativ e to the positive and ne gativ e mo tor inputs. T able 8 sho ws the National Instruments motion control standard directio nal polarity [...]

  • Page 19

    © National Instruments Corporatio n 19 MID-7654/7652 Servo Power Motor Drive User Guide Rear Guard The rear guard consists of the protecti on cover, protection plates, and bottom mounting plate as shown in Fi gure 9. Figure 9. Rear Guard Consisting of the Protection Cover , Protection Plates, and Bottom Mounting Plate 1 Bottom Mounting Plate 2P r [...]

  • Page 20

    MID-7654/7652 Servo Power Motor Drive User Guid e 20 ni.com The rear guard installed on the MID-7654/7 652 is shown i n Figure 10. Figure 10. Rear Guard Installed on the MID-7654/7652 Warning The serv o motor connectors on this driv e are ener gized when the unit is po wered on. The rear guard must be in place at all times while the unit is connect[...]

  • Page 21

    © National Instruments Corporatio n 21 MID-7654/7652 Servo Power Motor Drive User Guide Figure 11. Protection Cover and Protection Plates: Used Axes 1 & 2, Unused Axes 3 & 4. Note The protection plates for any unused axes should remain installed in the closed position at all times, as shown on axes 3 and 4 in Figure 11. For ax es you are u[...]

  • Page 22

    MID-7654/7652 Servo Power Motor Drive User Guid e 22 ni.com 7. Ensure that the rear guard is held securely in place before reconnecting your MID-76 54/7652 to a p o wer outlet. Encoder T erminal Blocks For quadrature incremental encoder signals, each MID-7654/7652 axis has a separate 8-position removable screw terminal block. Where applicable, the [...]

  • Page 23

    © National Instruments Corporatio n 23 MID-7654/7652 Servo Power Motor Drive User Guide Note If you require other encoder power v oltages, reference an external po wer supply to the Digital Ground sign al on the 8-pin encoder terminal bl ock. The MID-7654/7652 supports di f f erential inputs for Phase A, Phase B, and Index signals. Y ou can easily[...]

  • Page 24

    MID-7654/7652 Servo Power Motor Drive User Guid e 24 ni.com Figure 15. Shielded T wisted Pairs Note Using an unshielded cabl e may produce noise, wh ich can corrupt the encoder signals and cause lost counts, reduced accuracy , or other erroneous encoder and controller operation. Limit Switch T erminal Blocks For end-of-travel limit, ho me, inhibit [...]

  • Page 25

    © National Instruments Corporatio n 25 MID-7654/7652 Servo Power Motor Drive User Guide Breakpoint and T rigger T erminal Blocks Both the breakpoint an d trigger connectors use a 6-p in removable terminal block. The trigger terminal block provides access to the trigger input lines, shutdo w n input line, and digital ground. The breakpoint terminal[...]

  • Page 26

    MID-7654/7652 Servo Power Motor Drive User Guid e 26 ni.com Figure 19. Analog Input T erminal Block Pin Assignment Figure 20. Analog Output T erminal Block Pin Assignment Step and Direction T erminal Block The MID-7654/7652 passes step and direction si gnals from the controller directly through the drive, all owing you to access them through the 8-[...]

  • Page 27

    © National Instruments Corporatio n 27 MID-7654/7652 Servo Power Motor Drive User Guide Cable Installation for CE Compliance Take the following additional steps to ensure CE Compliance: 1. Enclose the terminal block w ires in a 360-degree shielded cable. This requires a braided shield. 2. Install the strain-relief bar on the MID -7654/7652 as desc[...]

  • Page 28

    MID-7654/7652 Servo Power Motor Drive User Guid e 28 ni.com b . Lay the cables so that the braided shield makes full contact with the foam of the strain-relief bar . The braided shield must only make contact with the strain-relief bar , and no other part of the de vice. c. Lo w er the clamp and tighten the thumb nut s to remov e all gaps between th[...]

  • Page 29

    © National Instruments Corporatio n 29 MID-7654/7652 Servo Power Motor Drive User Guide Figure 23. MID-7654/7652 with the Strain-Relief Bar Installed Panel Mount Kit Installation The panel mount kit allows you to m ount the MID-7654/7652 insid e a cabinet or enclosure. Attach the panel mount kit to the rear and front set of screw holes on th e sid[...]

  • Page 30

    MID-7654/7652 Servo Power Motor Drive User Guid e 30 ni.com Figure 24. MID-7654/7652 with the Pan el Mount Kit Installed Note The strain-relief bar and panel mount kit cannot be installed at the same time, because they will not simultaneously f it under the sides of the bottom mounting plate. Modifying the Power Entr y Module This section covers re[...]

  • Page 31

    © National Instruments Corporatio n 31 MID-7654/7652 Servo Power Motor Drive User Guide 4. Push the fuse holder back into the power entry module with the same orientation you observed in step 2. 5. Close the hinged cover . Changing the Line V oltage Follow these steps to change the line vol tage on your MID-7654/7652: 1. Pry open the hinged cover [...]

  • Page 32

    MID-7654/7652 Servo Power Motor Drive User Guid e 32 ni.com Continuous current limit ................ .........0.85 – 5 A (default 0.85 A) DC-bus motor voltage ................... .........48 VDC PWM frequency ............... .......................32 kHz Continuous power out put rating (all axes combined) ............. .............. ...... 400 [...]

  • Page 33

    © National Instruments Corporatio n 33 MID-7654/7652 Servo Power Motor Drive User Guide Analog Inputs Noise filter (RC time constant) .............. 10 µ s Compatibility ............... .............. ............ Signal p ass-through Analog Outputs Compatibility ............... .............. ............ Signal p ass-through Step/Direction Outp[...]

  • Page 34

    MID-7654/7652 Servo Power Motor Drive User Guid e 34 ni.com AC power ......................... .......................Detachable AC power cord (IEC standard type) Motion I/O ................. .............. ...............68-pin female high density VHDCI type Environment Operating temperature ................... .........0 to 50 ° C (32 to 122 ° [...]

  • Page 35

    © National Instruments Corporatio n 35 MID-7654/7652 Servo Power Motor Drive User Guide Safety Meets the requirements of the following standards for safety for electrical equipment for measurement, control, and laboratory use: • EN 61010-1:1993/A2:1 995, IEC 61010-1:1990 /A2:1995 • UL 3101-1:1993, U L 3111-1:1994, UL 3 121-1:1998 • CAN/CSA C[...]

  • Page 36

    T echnical Support Resources NI We b Support National Instruments W eb support is yo ur first sto p for help in solving installation, configuration, and application problems a nd questions. Online problem-solving and diagnost ic resources include frequently asked questions, knowledge bases, product-specif ic troubleshooting wizards, manuals, driv e[...]