The Yaskawa SGDG-04GT LEGEND Servo Amplifier is a 0.4 kW single-phase servo drive engineered for precise torque control in industrial motion applications. Built on 100% digital architecture with intelligent serial encoder technology, it automatically recognizes compatible motors and delivers three-phase output up to 3 A. The amplifier accepts single-phase input from 90-253 VAC at 50-60 Hz and is designed for integration with SMC-4000 controllers and Sigma II servomotors via Firewire communication.
Technical Specifications
• Rated Output Power: 0.4 kW (0.54 HP)
• Motor Compatibility: 100 W to 750 W rated output motors
• Input Voltage: 90-253 VAC, single phase
• Input Frequency: 50-60 Hz
• Input Current: 5 A or 5.5 A
• Output Voltage: 0-253 VAC or 0-230 VAC, three phase
• Output Current: 3 A
• Built-In AC Supply: Yes
– Key Features
• Precise torque control capability for demanding control loops
• Serial encoder technology enables automatic motor recognition
• 100% digital design with self-checking diagnostics
• Seven-segment display with dual LED status indicators
• Firewire communication interface
• Compact design suitable for OEM integration
– Typical Applications
• Single and multi-axis positioning systems
• Torque-limited motion control
• Industrial automation requiring precise load management
• Legacy system retrofits and maintenance
– Compatibility & Integration
The SGDG-04GT integrates directly with SMC-4000 controllers and the LEGEND-MC SMC-3010 for single-axis positioning. Plug-and-play cabling is available for Sigma II linear and rotary servomotors. Reference input lines support maximum lengths of 9.84 ft (300 cm); PG feedback lines extend to 65.6 ft (20 m) using UL20276-SB cable for runs exceeding 65.6 ft. Power and signal lines must maintain minimum 11.81 in. (30 cm) separation and shall not share conduit. Twisted pair or shielded multi-core twisted pair wiring is required for all signal and encoder feedback paths.
Note: This is a legacy product no longer actively promoted in the Americas.
