Product Overview

The Yaskawa SGM7J-04AFA61 is a Sigma-7 medium-inertia rotary servo motor designed for precision motion axes requiring a balance of fast response, stable load matching and compact installation. It provides a rated output of 400 W, a rated torque of 1.27 Nm and a rated speed of 3000 RPM.

This configuration uses a 24-bit incremental serial encoder and a straight shaft with key and tap. The final 61 designation identifies a version without a holding brake or oil seal. Its complete model number must therefore be retained when purchasing a replacement.

Main Features

• 400 W rated output for 200 VAC-class Sigma-7 servo systems.
• Medium-inertia rotor suitable for stable load matching.
• Rated torque of 1.27 Nm and instantaneous maximum torque of 4.46 Nm.
• Rated speed of 3000 RPM and maximum speed of 6000 RPM.
• 24-bit incremental serial encoder with high positioning resolution.
• Straight output shaft with key and threaded center hole.
• Compact 60 mm flange class construction.
• IP67 protective structure under the specified cable and installation conditions.

Technical Specifications

Compatible System and Applications

The SGM7J-04AFA61 is typically paired with a correctly sized Sigma-7 SERVOPACK such as an SGD7S-2R8A configuration. Final compatibility depends on the drive interface, encoder support, power supply, cable set and controller architecture.

Typical applications include electronic assembly machines, packaging equipment, semiconductor production systems, compact CNC mechanisms, printing machinery, indexing tables, robotic handling axes and other automated equipment requiring accurate positioning with frequent acceleration and deceleration.

Maintenance and Replacement Notes

Verify the complete SGM7J-04AFA61 designation rather than ordering only by the SGM7J-04A capacity code. Confirm the incremental encoder specification, shaft diameter, keyway, threaded center hole, flange dimensions, connector orientation and absence of a holding brake.

Check the matched SERVOPACK model, parameter file, firmware, motor cable, encoder cable, controller project and machine safety circuit. A motor with a 24-bit absolute encoder or holding brake is not automatically interchangeable even when the rated power is the same.

Related Models

Related configurations include SGM7J-04A7D61 with a 24-bit absolute encoder, SGM7J-04AFA6C with a 24 V holding brake and SGM7J-04AFA6E with a holding brake and oil seal. Each complete suffix identifies important feedback or mechanical differences.

Inquiry and Supply Notes

Please provide the complete motor nameplate, SERVOPACK model, cable information, encoder requirements and photographs of the installed shaft and connectors. Product condition, actual availability and supplied accessories must be confirmed in the individual quotation.