SERVOSTAR-446M-P Kollmorgen
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The Kollmorgen SERVOSTAR-446M-P is part of the S400 Servo Drives series and features IP20 enclosure protection. It offers a rated output current of 6 Arms, with a peak output current of 12 Arms, and supports up to 12 kVA maximum installed load. The drive provides a 14-bit analog input resolution and includes 4 digital inputs and 2 digital outputs.
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Product Description:
The SERVOSTAR-446M-P is a panel-mounted servo drive from Kollmorgen’s S400 Servo Drives series. Designed for closed-loop control of brushless AC servomotors, it translates velocity or torque commands from a motion controller into accurately modulated phase currents. The drive is built in an IP20 enclosure that is 267 mm high and weighs 3 kg, making it suitable for dense cabinet layouts where touch-safe but ventilated installation is possible. Its panel-mounted format also keeps the power section inside the control cabinet, where it can share centralized wiring and remain accessible for status monitoring. By handling power processing and fault supervision locally, it simplifies the integration of precision axes in assembly cells, packaging lines, and material handling stations.
At the power stage, the unit can supply a continuous motor current of 6 Arms and tolerate momentary demands up to 12 Arms, giving machines headroom for acceleration without oversizing the drive. Pulse-width modulation operates at 8 kHz, reducing motor acoustic noise while maintaining low current ripple. Command data can enter through a ±10 V analog channel that presents 20 kOhm of input resistance and is digitized with 14-bit resolution, allowing fine torque trimming. Four digital inputs accept limit, enable, or homing signals, while two digital outputs return status to the PLC. This I/O arrangement lets the drive react to machine interlocks and report operating states without requiring a separate interface module. Base losses are contained, with 15 W of quiescent dissipation when idle.
System sizing is guided by a maximum installed load of 12 kVA, and thermal design must accommodate 60 W of loss at the rated output. The output stage is compatible with motor windings whose line-to-line inductance falls between 40 mH and 7.5 mH; staying within this window keeps current regulators stable and avoids excessive ripple. Protective circuitry disconnects the bus if DC voltage exceeds 750 V, preventing damage from regenerative surges. Cabinet ventilation must remove the heat produced by the power section during repeated acceleration and deceleration. This supports consistent drive behavior during cyclic motion profiles.
Frequently Asked Questions about SERVOSTAR-446M-P:
Q: What is the maximum installed load capacity of the SERVOSTAR-446M-P?
A: The SERVOSTAR-446M-P supports a maximum installed load of 12 kVA.
Q: What is the analog input resolution on the SERVOSTAR-446M-P servo drive?
A: This model features an analog input resolution of 14 bits for precise signal processing.
Q: How many digital inputs are provided by the SERVOSTAR-446M-P?
A: There are 4 digital inputs available on the SERVOSTAR-446M-P.
Q: What enclosure protection does the SERVOSTAR-446M-P offer?
A: The enclosure protection rating for the SERVOSTAR-446M-P is IP20.
Q: What is the peak output current of the SERVOSTAR-446M-P servo drive?
A: The peak output current of this drive is 12 Arms.
