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 up to 1.6kHz. These features allow very smoth motion at low speed, higher load-to-rotor inertia rations, and decreased settling time.

Comparison of Servo Amplifiers

Communications Reference Interface	SGDV Sigma-5	SGDH Sigma II	Sigma FSP	SGDG LEGEND	SGDF Sigma Mini
Analog Input Torque Control	■	■	■	■	■
Analog Input Speed Control	■	■	■		■
Pulse Input Position Control	■	■	■		■
MECHATROLINK-II	■	■
EtherCAT	■
Symbol Key: ■ Applies to entire product line
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Amplifier Features	SGDV Sigma-5	SGDH Sigma II	Sigma FSP	SGDG LEGEND	SGDF Sigma Mini
Absolute Encoder Compatible	■	■	■
Built-In Holding Brake Control	■	■	■		■
Torque Loop Notch Filter	■	■	■
High Performance Non-Linear Tuning	■		■
Symbol Key: ■ Applies to entire product line
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Setup	SGDV Sigma-5	SGDH Sigma II	Sigma FSP	SGDG LEGEND	SGDF Sigma Mini
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.
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Power	SGDV Sigma-5	SGDH Sigma II	Sigma FSP	SGDG LEGEND	SGDF Sigma Mini
Amplifier Input Voltage	100/200/400 VAC	100/200/400 VAC	100/200/400 VAC	90-253 VAC	24 VDC
Up to 20 watts					■
Up to 1.5 kW	■	■	■	■
Up to 5 kW	■		■
Up to 15 kW	■	■
1.5-55 kW		■
Symbol Key: ■ Applies to entire product line
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Motors	SGDV Sigma-5	SGDH Sigma II	Sigma FSP	SGDG LEGEND	SGDF Sigma Mini
SGMM Sigma Mini					■
SGMAH, SGMPH, SGMGH, SGMSH/UH, and Linear		■	■	□
SGMGV, SGMSV, 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
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Single-Axis Controllers	SGDV Sigma-5	SGDH Sigma II	Sigma FSP	SGDG LEGEND	SGDF Sigma Mini
SMC-3010 LEGEND-MC				■
Indexer	□	■
1.5 Axis Machine Controller	□	■
Built-In Programmable Single Axis Position Control			■
Symbol Key: ■ Applies to entire product line □ Under development.
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Comparison of Servo Amplifiers

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