Product Description:

The DMD02.1-W012N is a digital servo drive controller manufactured by Bosch Rexroth Indramat for the DMD Servo Drives series. It provides closed-loop control for compact AC servomotors and converts 200 to 230 V, 50/60 Hz mains power into sine-shaped phase currents by using IGBT pulse-width modulation. An incremental encoder with 2,500 pulses per revolution allows the unit to coordinate position, speed, and torque in pick-and-place stations, feeders, and light conveyor axes. The unit is in design 1 on line 2.

Its continuous output capability is 1.0 Arms, which suits actuators that operate for long periods without exceeding winding temperature limits. For short surges, the drive can supply 4.3 A peak, allowing rapid indexing before current limiting returns the output to steady-state values. Mechanical power is rated at 100 W, and the input is intended for 3 × AC 230 V. Single-phase operation is also accepted when three-phase service is unavailable, and under nominal conditions the controller draws only 0.7 A from a three-phase source. Motion ramps can be shaped in 10 ms increments, taking advantage of the 500 kpps command input and the velocity response of more than 300 Hz. Natural convection removes switching losses, and 8.91 J of stored capacitor energy helps bridge short brownouts so EEPROM-backed parameters remain intact.

The regenerative circuit can dissipate peaks of 1600 W and handles a continuous 10 W flow during routine speed reductions. An overcurrent trip acts at 20 A, and the drive issues a fault if the bus rises above 400 VDC or falls below 190 VDC. Overspeed monitoring stops motion at 6000 rpm, and the dynamic brake clamps the shaft until axis motion stops. RS232C communication is used to configure the 28 programmable point table and the 31-bit position registers so repeated moves remain consistent from cycle to cycle.