Product Overview

The Yaskawa SGM7J-04AFA6C is a 400 W Sigma-7 medium-inertia rotary servo motor equipped with a 24-bit incremental serial encoder and 24 VDC holding brake. It is designed for accurate industrial positioning and for holding a stationary mechanical load after servo torque is removed.

The motor delivers a rated torque of 1.27 Nm at 3000 RPM and an instantaneous maximum torque of 4.46 Nm. Its 6C configuration provides a straight keyed and tapped shaft with a holding brake but without an oil seal.

Main Features

• 400 W rated output for 200 VAC-class Sigma-7 systems.
• Rated torque of 1.27 Nm and peak torque of 4.46 Nm.
• Rated speed of 3000 RPM and maximum speed of 6000 RPM.
• 24-bit incremental serial encoder.
• Integrated 24 VDC holding brake.
• Straight shaft with key and threaded center hole.
• Medium-inertia design for stable mechanical load matching.
• Compact 60 mm flange-class construction.

Technical Specifications

Compatible System and Applications

The SGM7J-04AFA6C is normally paired with a compatible 400 W Sigma-7 SERVOPACK such as an SGD7S-2R8A capacity. Final compatibility depends on the SERVOPACK interface, firmware, encoder support, cable configuration and controller project.

Typical applications include vertical packaging axes, electronic assembly systems, pick-and-place machinery, labelling equipment, compact robotics, printing machines and automated positioning equipment requiring stationary load retention.

The holding brake is intended to hold a stopped load. It must not be used as the normal method for repeatedly decelerating or stopping the moving motor.

Maintenance and Replacement Notes

Confirm the complete SGM7J-04AFA6C designation, incremental encoder, keyed shaft, threaded center hole and 24 VDC holding brake. Verify the brake connector, brake voltage, release timing and external surge-suppression circuit.

Check the SERVOPACK capacity, firmware, motor parameters, power cable, encoder cable, brake cable and controller interlock. The brake must be released before a motion command is applied to avoid motor overload or mechanical damage.

Related Models

Related models include SGM7J-04AFA61 without a brake, SGM7J-04AFA21 with a plain shaft, SGM7J-04AFA2C with a plain shaft and holding brake and SGM7J-04AFA6E with both a holding brake and oil seal.

Inquiry and Supply Notes

Please provide the complete motor nameplate, installed SERVOPACK model, brake wiring details, cable numbers and photographs of the shaft and connectors. Condition, availability and included accessories must be verified for each quotation.