PRD-0045000z-25 by Kollmorgen

The Kollmorgen PRD-0045000z-25 drive from the PD Servostar Servo Drives series is engineered for precision position control in demanding industrial automation applications. Key specifications include a maximum line count of 10,000,000 lines per motor electrical cycle and an encoder output frequency of 3 MHz for standard encoders. Weighing just 1.22 lbs (0.55 kg) and drawing a maximum supply current of 250 mA, it delivers high signal accuracy in a compact design. Its primary function is to rapidly interpret encoder signals and translate them into precise motion control commands.

At its core, the PRD-0045000z-25 supports a maximum input frequency of 3 MHz before quadrature and 12 MHz after quadrature, ensuring rapid signal processing. For sine encoders, it applies 256x cycle interpolation to maximize resolution and smoothness. Velocity control is achieved at 18-bit position resolution, while resolver-based operation provides 16-bit resolution. The drive current limit for resolvers is set at 55 mA AC-RMS, and resolver interfaces operate at a 7–8 kHz modulation frequency. Signal types supported include A-quad-B and Marker in differential or open-collector configurations, with single-ended connections explicitly discouraged to maintain signal integrity.

Designed for both system compatibility and operational efficiency, this drive operates from a 5 VDC system voltage and recommends a maximum cable length of 50 ft (15 m), beyond which a separate voltage regulator is required. Differential signaling ensures noise immunity, and the device maintains < 20 arcminutes temperature-limited accuracy with compatible resolvers. Its compact footprint and low weight facilitate integration into space-constrained installations. By combining high-frequency processing, flexible signal interfacing, and robust current handling, the PRD-0045000z-25 enhances precision, reliability, and overall performance in industrial motion control systems.