Product Overview

The Yaskawa SGM7J-04A7D61 is a 400 W Sigma-7 medium-inertia rotary servo motor with a 24-bit absolute serial encoder. It is intended for industrial axes that require high-resolution position feedback and retention of machine-position information through a correctly configured absolute encoder system.

The motor provides a rated torque of 1.27 Nm at 3000 RPM and an instantaneous maximum torque of 4.46 Nm. Its straight keyed shaft and compact flange design support integration into positioning equipment, robotics and automated machinery.

Main Features

• 400 W rated output for 200 VAC-class servo systems.
• 24-bit absolute serial encoder.
• Rated torque of 1.27 Nm and peak torque of 4.46 Nm.
• Rated speed of 3000 RPM and maximum speed of 6000 RPM.
• Medium-inertia rotor for stable load matching.
• Straight output shaft with key and tap.
• No holding brake or oil seal in the 61 configuration.
• IP67 protective structure under specified installation conditions.

Technical Specifications

Compatible System and Applications

The motor is intended for a compatible Sigma-7 servo system using an SERVOPACK sized for the 400 W SGM7J motor class. Typical applications include indexing systems, packaging equipment, semiconductor machinery, printing systems, compact robots, electronic assembly equipment and positioning axes that benefit from absolute position feedback.

Absolute operation requires the correct encoder cable, SERVOPACK settings, backup arrangement and controller configuration. The motor must not be treated as equivalent to an incremental-encoder model based only on rated power.

Maintenance and Replacement Notes

Verify the complete SGM7J-04A7D61 designation, including the 7 encoder code and D design-revision character. Confirm the encoder system, battery requirements, motor identification data, shaft dimensions, flange, connectors and cable part numbers.

When transferring the motor to another SERVOPACK, review encoder initialization, absolute-position setup, home-offset data, machine coordinates, firmware and controller parameters. Incorrect handling of absolute encoder data can cause loss of the established machine position.

Related Models

Related models include SGM7J-04AFA61 with a 24-bit incremental encoder, SGM7J-04A7D6C with a holding brake, SGM7J-04A7D6E with a brake and oil seal and SGM7J-08A7D61 in the 750 W class.

Inquiry and Supply Notes

Please provide the complete nameplate, SERVOPACK model, encoder cable number, controller information and photographs of the shaft and connectors. Product condition, encoder status and included accessories must be confirmed for the individual offer.