DR-4M : 4.0 Amp High Resolution Microstep Driver - ADVANCED MICRO SYSTEMS - #1

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® OVERVIEW The DR-4M is a high performance, microstepping driver designed to meet O.E.M. requirements for reliable, cost effective operation. The DR-4MPS provides the next level of user integration with a built in 40 volt power supply. Both drivers offer eight resolution settings, from 1/2 step to 1/256 step. They are short circuit, over temperature and under voltage protected for extended service life. Features include: • Low cost - small size • Heatsinked enclosure • 1 Mhz step clock • Integral power supply (DR-4MPS) • Step resolution to 50k steps/rev. • 4 amp output current (Peak) • Auto current reduction/boost • Phase to phase/ground, over temp. and under voltage protected • Fault and diagnostic indicators • Mating connectors included CONTROL INPUT The essential input signals include a step pulse and direction control and three resolution select lines to permit remote setting of microstep size. Inputs are TTL/CMOS compatible with current limiting circuitry capable of withstanding temporary over voltages. A miniature eight contact RJ-45 connector is provided for convenient interface of user control signals to the driver. Available resolution settings include from 400 to 51,200 steps per revolution. OUTPUT CURRENT The DR-4M and DR-4MPS will automatically increase and decrease the current in the motor windings after the completion of a move. A convenient dip-switch, located on the front panel, is used to set the hold and run currents in 14% increments, between 0 and the maximum setting. On power up, the drivers are disabled. On application of step pulses, the programmed run current value is set. POWER SUPPLY The DR-4M driver can be operated from a single unregulated DC power supply. Maximum input voltage is 45 volts. Multiple drivers can also be connected to a single power supply source. The DR-4MPS integrates a 40 volt (80 volt/amp) toroidal power supply for maximum performance and reliability. A convenient AC power entry connector and cord make installation simple and quick. DDRR-8-4MM POWER SUPPLY DRIVER DRIVER AC INTERFACE DR-4MPS INTERFACE POWER SUPPLY DR-4M AND DR-4MPS 4 AMP MICROSTEPPING DRIVERS