S22GSNA-RNVM-02 Pacific Scientific
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The Pacific Scientific S22GSNA-RNVM-02 is a 6-pole Neodymium magnet brushless servo motor from the S Brushless Motors series. It has a continuous stall torque of 1.0 Nm, a peak torque of 2.64 Nm, and a NEMA 23 frame size. The motor weighs 1.9 kilograms and uses a size 21 frameless resolver as its primary feedback device.
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Product Description:
The S22GSNA-RNVM-02 brushless servo motor is manufactured by Pacific Scientific and belongs to the S Brushless Motors series. It is a 6-pole neodymium-magnet motor built to convert electrical energy from a matched drive into controlled rotary motion for industrial automation axes. A size 21 frameless resolver installed in the housing provides primary feedback so the drive can regulate position and velocity during indexing, speed changes, and repeated start-stop cycles. This arrangement makes the motor suitable for packaging equipment, electronics assembly systems, and light material-handling applications that require compact servo control.
Under steady thermal conditions, the motor can deliver a continuous stall torque of 1.0 Nm without exceeding winding limits. When rapid motion is required, the design supports a peak torque of 2.64 Nm for short periods, which provides added acceleration capability. Torque output rises with phase current, and the torque constant of 0.7 Nm/ARMS shows the current-to-torque relationship used by the drive. The winding has a line-to-line inductance of 22.1 mH, which affects current rise time, and the rotor inertia is 0.064 × 10⁻³ kg·m², which influences acceleration and deceleration response. Winding code G, the two-stack lamination set, the Viton shaft seal, and the lack of a brake support compact installation and help protect the shaft area from contamination.
The motor has a line-to-line resistance of 16.2 Ω, and its voltage constant is 0.44 VRMS/rad/sec, allowing the drive to relate motor speed to generated back EMF during operation. The assembly weighs 1.9 kg, and its mounting face matches the NEMA 23 frame pattern for straightforward machine integration. With no secondary feedback channel and no holding brake, stationary torque must be supplied electrically or by external mechanical means. All power, phase, and resolver leads exit through a motor-mounted MS connector, which keeps the connection point consolidated at the motor body and simplifies cable routing around the axis.
Frequently Asked Questions about S22GSNA-RNVM-02:
Q: What is the continuous stall torque rating of the S22GSNA-RNVM-02 motor?
A: The S22GSNA-RNVM-02 servo motor delivers a continuous stall torque of 1.0 Nm.
Q: Does the S22GSNA-RNVM-02 servo motor have a holding brake?
A: This model does not include a holding brake.
Q: What frame size is used for the S22GSNA-RNVM-02 motor?
A: The S22GSNA-RNVM-02 is built on a NEMA 23 frame size.
Q: What type of shaft seal does the S22GSNA-RNVM-02 motor use?
A: A Viton shaft seal is provided on this motor for enhanced sealing.
Q: What is the primary feedback device for the S22GSNA-RNVM-02 motor?
A: Primary feedback for this motor is provided by a size 21 frameless resolver.
