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Anleitung Zusammenfassung
The NI MID-760x provides stepper motor control from the NI 7330, 7340, and 7350 controllers. The MID-7650 provides DC-brush servo motor control from NI 7340 and 7350 controllers. Because the MID-760x and the MID 7650 have all the required motion drive and motion I/O signals, they offer all the features of a universal motion interface wiring module with the enhancements of a powered motor drive in a single product. The NI MID power drives connect to motion controller boards through a single-shielded cable that transfers all motor commands, as well as motion I/O control and feedback signals. The MID-7604 and MID-7602 are 4-axis and 2-axis stepper motor drive units, respectively. The MID-7654 and MID-7652 are 4-axis and 2-axis DC-brush servo motor drive units, respectively. These compact, well integrated drives incorporate per-axis amplifiers, motor-power DC bus supplies, low-voltage motion I/O supplies, and pluggable screw terminal connectivity in a single rugged metal enclosure. This optimized system wiring design simplifies motion component selection. High-Efficiency Architecture The MID-760x power drives incorporate an efficient bipolar chopper architecture that converts step and direction control signals into winding currents for 2-phase stepper motors. The MID-765x power drives incorporate an efficient servo amplifier architecture that converts analog control signals into winding currents for DC-brush motors. The pulse width modulation driver technology in the MID-765x accurately controls motor winding current, while reducing motor heating, lowering ripple current, and improving overall motor performance. Active fan cooling provides optimal motion power drive operation. Compact Front Panel Front Panel Model Stepper Servo NI 7330 NI 7350 NI 7340 (V) Motor Drive (A) CurrenÿAxis Diagnostic LEDs Enclosure and Microstepping Selectable Peak Current Selectable Axes MID-7604 ✓ - ✓ ✓ 24 0.2 to 1.4 ✓ ✓ ✓ 4 MID-7602 ✓ - ✓ ✓ 24 0.2 to 1.4 ✓ ✓ ✓ 2 MID-7654 - ✓ - ✓ 48 0.8 to 5 continous 10 peak ✓ - ✓ 4 MID-7652 - ✓ - ✓ 48 0.8 to 5 continous 10 peak ✓ - ✓ 2 Figure 1. Stepper and Servo Motor Drive Features 642 National Instruments • Tel: (800) 433-3488 • Fax: (512) 683-9300 • info@ni.com • ni.com Stepper and Servo Motor Drives Ordering Information NI MID-7604 (4-axis stepper)................................................777936-0P NI MID-7602 (2-axis stepper)................................................778003-0P NI MID-7654 (4-axis servo)...................................................778005-0P NI MID-7652 (2-axis servo)...................................................778004-0P Cables Refer to the cable guide on page 645. Accessories Rack-Mount Kit MID-760x............................................................................777665-01 MID-765x............................................................................187374-01 Strain-Relief Bar for MID-76xx..............................................187407-01 Panel-Mount Kit......................................................................187243-01 BUY ONLINE! Visit ni.com/info and enter mid7602, mid7604, mid7652, and/or mid7654. Specifications The specifications below apply to only the MID-76xx. Please refer to your controller specifications to determine overall system specifications. Some signals define compatibility as pass-through. This means the MID 76xx may have passive filtering on these signals, but the signals do not affect the voltage range. Consult your motion controller specifications to determine allowable voltage range and logic level compatibility of the signal. MID-7604, MID-7602 Stepper Motor Drives Driver type........................................................ IM481H modular hybrid, bipolar chopper Chopping operating frequency......................... 20 kHz Motor bus voltage............................................ 24 VDC nominal Current per phase............................................. 0.2 to 1.4 Apeak (0.14 to 1 Arms) (factory setting is 0.2 ApeaJ Microstepping selections................................. x2, 4, 8, 16, 32, 64, 128, 256 x5, 10, 25, 50, 125, 250 Power Supply Input voltage.................................................... 90-138 VAC/204-264 VAC, 47-63 Hz Input fuse......................................................... 1.5 A, 230 VAC 3 A, 115 VAC Input fuse dimensions...................................... 5 x 20 mm Host Bus Voltage Interlock PC bus host voltage monitoring range............. 5 VDC Physical Dimensions....................................................... 30.6 by 25.4 by 4.4 cm (12.1 by 10.0 by 1.7 in.) Weight ............................................................ 4.5 kg (10 lb) MID-7654, MID-7652 Servo Motor Drives Driver type................................................................................................................Elmo Motion Control VIO 10/100 Peak current limit..............................................