Description
Rexroth MSM020B-0300-NN-M0-CG0 is a Rexroth IndraDyn S MSM series synchronous servo motor designed for precise closed-loop motion control in industrial automation. This compact 020 frame motor with winding code 0300 delivers a continuous torque of 0.32 Nm and peak torque up to 0.95 Nm, using a natural convection cooling scheme and a multi-turn absolute optical encoder.
The MSM020B-0300-NN-M0-CG0 integrates with standard Rexroth servo drives, offering precise position feedback with 17 + 16 bit resolution for indexing, profile moves, or gantry axes. A cable tail electrical connection and low rotor inertia support quick commissioning and repeatable dynamics. Verify encoder interface and drive parameter settings with OEM documentation before installation.
Frequently Asked Questions (FAQ)
Q: Can I hot-swap this servo motor on a running axis?
A: Honestly, no. Servo motors require the drive to be in a safe-stop state and torque removed before disconnecting. The encoder and drive tuning reset when you repower. Always stop the axis and discharge DC bus before swapping.
Q: Is this MSM020B obsolete or is there a direct replacement path?
A: The MSM IndraDyn S line has largely been succeeded by newer Rexroth motion products, but MSM motors with matching winding codes and encoder types are still stocked as surplus. If you move to a newer motor family, expect drive firmware and database parameter changes. Verify with OEM motor/drive compatibility lists.
Q: Will replacing this motor cause me to lose my servo tuning parameters?
A: The tuning lives in the drive, not the motor. However, encoder resolution, feedback polarity, and motor constants must match the original. Export drive parameters via IndraWorks/drive tool before removal and import after installation.
Q: Are these units factory-new or refurbished?
A: These are New Original (New Surplus) stocks sourced from excess inventory. They should be unused, but always trace serials to confirm manufacture date and handling history. This is not a refurbished unit by default.
Q: What about warranty and delivery?
A: Surplus stock vendors typically offer a vendor-level limited warranty (often 30–90 days). OEM warranty may not apply on surplus. Lead times depend on inventory and can vary from same day shipping to backorder.
Q: Does this motor include a holding brake?
A: This specific MSM020B-0300-NN-M0-CG0 has no holding brake. If your axis needs a brake for safety or static holding torque, select a variant with the “CH1” or “CC1” brake option and match drive parameters accordingly.
