National Instruments NI MID-7604 Overview

Also see for NI MID-7602: USER GUIDE AND SPECIFICATIONS User guide User guide User guide

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National Instruments NI MID-7604 Overview Manual pdf 1 page image

642 National Instruments • Tel: (800) 433-3488 • Fax: (512) 683-9300 • info@ni.com • ni.comStepper and Servo Motor DrivesMotionOverview and ApplicationsThe National Instruments MID-760x integrated stepper motorpower drives and MID-765x integrated DC-brush servo motorpower drives offer reliable, easy-to-connect drive solutions forNational Instruments motion controllers. The NI MID-760xprovides stepper motor control from the NI 7330, 7340, and 7350controllers. The MID-7650 provides DC-brush servo motor controlfrom NI 7340 and 7350 controllers. Because the MID-760x and theMID 7650 have all the required motion drive and motion I/O signals,they offer all the features of a universal motion interface wiringmodule with the enhancements of a powered motor drive in a singleproduct. The NI MID power drives connect to motion controllerboards through a single-shielded cable that transfers all motorcommands, as well as motion I/O control and feedback signals.The MID-7604 and MID-7602 are 4-axis and 2-axis stepper motordrive units, respectively. The MID-7654 and MID-7652 are 4-axisand 2-axis DC-brush servo motor drive units, respectively.These compact, well integrated drives incorporate per-axisamplifiers, motor-power DC bus supplies, low-voltage motion I/Osupplies, and pluggable screw terminal connectivity in a singlerugged metal enclosure. This optimized system wiring designsimplifies motion component selection.High-Efficiency ArchitectureThe MID-760x power drives incorporate an efficient bipolar chopperarchitecture that converts step and direction control signals intowinding currents for 2-phase stepper motors. The MID-765x powerdrives incorporate an efficient servo amplifier architecture thatconverts analog control signals into winding currents for DC-brushmotors. The pulse width modulation driver technology in theMID-765x accurately controls motor winding current, whilereducing motor heating, lowering ripple current, and improvingoverall motor performance. Active fan cooling provides optimalmotion power drive operation.• High-efficiency, bipolar chopperstepper drives• User-selectable microsteppingand peak current• Integrated power supply• CE approved and UL recognizedNI MID-7654, NI MID-7652• High-efficiency servo amplifiers• User-selectable peak currentand continuous current• Integrated power supply• CE approved and UL recognizedNI MID-7604, NI MID-7602Stepper and Servo Motor DrivesCompact Front Panel Front PanelNI 7350 Motor Drive Current/Axis Enclosure and Selectable SelectableModel Stepper Servo NI 7330 NI 7340 (V) (A) Diagnostic LEDs Microstepping Peak Current AxesMID-7604 ✓ – ✓ ✓ 24 0.2 to 1.4 ✓ ✓ ✓ 4MID-7602 ✓ – ✓ ✓ 24 0.2 to 1.4 ✓ ✓ ✓ 2MID-7654 – ✓ – ✓ 48 0.8 to 5 continous ✓ – ✓ 410 peakMID-7652 – ✓ – ✓ 48 0.8 to 5 continous ✓ – ✓ 210 peakFigure 1. Stepper and Servo Motor Drive Features

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