Servo Amplifier

Servo Amplifiers
Yaskawa Sigma and LEGEND servo amplifiers have all-digital architecture with 32-bit microprocessor logic, high speed ASIC current-loop control, and IGBT power sections.
All Sigma and LEGEND amplifiers have serial encoder feedback with automatic motor recognition, expansion ports for addition of single-axis controls and network interfaces, separate main and control power connections, scalable encoder retransmission, sine-coded PWM output waveforms, full thermal overload protection of the motor, and UL, CE, and TUV certifications. Where required, Yaskawa amplifiers have built-in regenerative and dynamic brake resistors.
Yaskawa amplifiers are matched with Sigma motors with high-resolution serial encoder feedback to provide low velocity ripple and speed loop bandwidths exceeding 400 hz. These features allow very smooth motion at low speed, higher load-to-rotor inertia rations, and decreased setting time.

Comparison of Servo Amplifiers

Built-In Interface | Amplifier Features | Setup | Power | Motors | Single-Axis Controllers

Built-In Interface	SGDH Sigma II	Sigma FSP
Analog Input Torque Control	■	■
Analog Input Speed Control	■	■
Pulse Input Position Control	■	■
Programmable Single Axis Position Control		■
Symbol Key: ■ Applies to entire product line
Amplifier Features	SGDH Sigma II	Sigma FSP
Absolute Encoder Compatible	■	■
Built-In Holding Brake Control	■	■
Torque Loop Notch Filter	■	■
High Performance Non-Linear Tuning		■
Symbol Key: ■ Applies to entire product line
Setup	SGDH Sigma II	Sigma FSP
Dipswitch
Built-In Keypad	■	■
Serial Port	■	■
Setup and Monitoring Software with Data Trace	■	■
Wizard Setup		■
Symbol Key: ■ Applies to entire product line □ Sigma-5 has USB port instead of RS232 serial port.
Power	SGDH Sigma II	Sigma FSP
Amplifier Input Voltage	100/200/400 VAC	100/200/400 VAC
Up to 20 watts
Up to 1.5 kW	■	■
Up to 5 kW		■
1.5-55 kW	■
Symbol Key: ■ Applies to entire product line
Motors	SGDH Sigma II	Sigma FSP
SGMM Sigma Mini
SGMAH, SGMPH, SGMGH, SGMSH/UH, and Linear	■	■
SGMAV, SGMJV, and Linear
SGMCS Direct Drive	■
SGMBH Large Capacity	■
Special Purpose Motors		■
Symbol Key: ■ Applies to entire product line □ Applies to servomotors up to 1.5 kW, 100/200 volt with incremental encoder
Single-Axis Controllers	SGDH Sigma II	Sigma FSP
SMC-3010 LEGEND-MC
NS600 Indexer	■
NS300 DeviceNet	■
NS500 Profibus	■
MP940 Machine Controller	■
Built-In Programmable Single Axis Position Control		■