Product Description:

The PRD-LC30030C-57 is a digital servo drive produced by Kollmorgen within the CD Servostar CD Drives series. It conditions control signals, regulates phase current, and closes motion loops for brushless servo motors used in automated assembly, packaging, and material-handling equipment. By combining internal current, velocity, and position processing with external command interfaces, the drive forms the central actuator element between a host controller and the mechanical axis it powers.

The drive accepts a command span of ±10 VDC; this range lets a motion controller express full forward and reverse torque requests through a simple analog voltage. A differential command input topology rejects common-mode noise that can appear on long cable runs in factory environments. Internally, the torque-producing current loop is refreshed at 16 kHz, allowing it to track rapid load changes without introducing audible-band artifacts. For downstream monitoring, the unit provides a ±10 V, 8-bit analog output so external equipment can read velocity or current without accessing internal data buses. Parameter adjustments and diagnostics are performed over an RS-232 link that supports connections through standard serial tools.

Higher-level speed regulation is carried out by a 4 kHz velocity loop, balancing dynamic response with computational overhead. Rotor position is derived from a motor-mounted resolver feedback transducer, providing absolute shaft angle information even at standstill. Control electronics are powered from a dedicated 24 VDC logic supply, which keeps the processor active when main power is off. A 12–24 VDC remote enable line allows a safety controller to disable the drive without interrupting the low-level logic. This arrangement preserves processor operation while the power stage remains disabled, allowing the control system to retain drive status and diagnostic access during a controlled stop.