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Anaheim BLD72-1 manual

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Table of contents for the manual

  • Page 1

    1 BLD72, BLD72-1 Bilevel Step Motor Driver User’s Guide #L010011 910 East Orangefair Lane, Anaheim, CA 92801 e-mail: info@anaheimautomation.com (714) 992-6990 fax: (714) 992-0471 website: www.anaheimautomation.com ANAHEIM AUTOMATION[...]

  • Page 2

    2 General Description The BLD72 is a step motor driver that can drive motors rated from 1 to 7 amps/phase (unipolar rating). It can handle 6 lead and 8 lead motors. This driver features a unipolar bilevel (or dual voltage) drive tech- nique with short and open circuit protection (with a Fault LED). A transformer is required to power up the driver. [...]

  • Page 3

    3 Clock Modes The BLD72 has two clock options: Clock and Direction, or Dual Clock operation. Jumper JP2 is used to select the clock option. Basically JP2 selects Terminal 5 as either the Direction input or the CCW input. With the Clock and Direction option (most common option), clock pulses applied to the Clock input (Ter- minal 6) cause the motor [...]

  • Page 4

    4 Fault Protection There are 3 types of fault detection. When a fault is detected, the driver turns off the motor current and the red Fault LED indicates which type of fault occurred. See the Troubleshooting section for more information. If the driver goes into a fault condition, the fault may be reset by turning the power OFF for at least 15 secon[...]

  • Page 5

    5 Wiring Diagram The wiring diagram in Figure 5 shows the BLD72 with the AA2791 Transformer. For wiring with the AA2793 Transformer, refer to Figure 9. Motor Connections Figure 5 is a hookup diagram for typical BLD72 driver applications. Wiring connected to inputs must be separated from motor connections and all other possible sources of interferen[...]

  • Page 6

    6 3. 750 MA X 4. 500 3. 100 2. 500 1. 450 MA X 1. 500 .8 00 M A X 2. 350 3. 570 3. 000 Transformer Drawings Note: The AA2793 transformer is the same physical size as the AA2791, but it has two sets of second- ary windings (to power two drivers) and a dual primary winding for 115/230V operation. Figure 6: Transformer Dimensions Figure 8: AA2793 Tran[...]

  • Page 7

    7 Figure 9: Wiring for different line voltages for the AA2793 transformer.[...]

  • Page 8

    8 Note: The BLD72 and BLD72-1 are the same except for the base plate. The BLD72 is a replacement driver for use in Driver Packs. The BLD72-1 is a modular driver which has a larger base plate. Dimensions Drawings Figure 11: BLD72-1 Dimensions Figure 10: BLD72 Dimensions[...]

  • Page 9

    9 13 Pin Terminal Description Motor Compatibility Add suffix “ S ” for single-ended shaft, or suffix “ D ” for double-ended shaft. Notes: Other motors not listed above may be compatible with this driver. Anaheim Automation carries a full-line of standard and high torque step motors. Contact the factory regarding compatibility. See back cove[...]

  • Page 10

    10 Specifications Control Inputs (All) : (Terminals 5, 6, 8, 9) TTL-compatible Logic “ 0 ” - 0 to 0.8 V Logic “ 1 ” - 3.5 to 5.0 V Fault Reset: (Terminal 4) Pulled up to +5VDC through a 10k Ohm resistor Logic “ 1 ” (open) - Driver enabled and Fault detection enabled Logic “ 0 ” - Resets a Fault condition (driver is disabled when thi[...]

  • Page 11

    11 Troubleshooting If a Fault occurs, reset the Fault by applying a logic “ 0 ” to the Reset Fault Input (terminal 4) for at least 100ms (or by cycling power OFF for at least 15 seconds). After resetting, try to run the motor again. If the driver faults again then check the conditions listed below. Is the LED blinking slowly? (Once a second) Th[...]

  • Page 12

    12 Torque Speed Curves ANAHEIM AUTOMATION[...]