Product Description:

The M4425-100000 is a digital DC drive produced by Kollmorgen as part of the M4000 Digital DC Drives series. Designed for panel-mounted integration, the unit converts three-phase AC power into controlled DC output so that industrial automation systems can modulate motor torque and velocity with precision. By monitoring feedback and executing programmable logic, it supplies the correct armature and field currents needed for dependable speed regulation on production lines, test stands, and material-handling equipment.

The drive delivers a continuous mechanical output of 25 HP while accepting an input window of 380 to 460 VAC across a 3-phase supply at 48–62 Hz. Under full electrical load it draws 42.6 A from the mains and provides up to 0 to 500 VDC to the motor armature; a separate field circuit is held at 300 VDC. For applications that demand wide operating flexibility, the closed-loop speed range is 50:1 and the DC output can sustain 35.0 A continuously. Ten digital inputs and five digital outputs allow sequencing with external PLCs, and an isolated RS-485 serial port supports remote parameter download. Protective firmware supervises phase symmetry and line frequency tolerance while coordinating accelerated ramping, braking, and current limiting functions.

To complement the electrical capacity, the drive tolerates a short-duration overload of 150% for 1 min, giving motion systems headroom during acceleration. Thermal management relies on a forced-air flow of 72 CFM, evacuating the internal 158 W of dissipated heat through top-mounted ducts. All components are built into a compact power section measuring 15.875 × 11.25 × 7.75 in, which simplifies retrofits inside crowded control cabinets while maintaining adequate service clearance for filters, fuses, and wiring.