Product News

New 75 A Capacity Model AC Servo Amplifier
for SANMOTION R 3E Model Series

March 28, 2016

SANYO DENKI CO., LTD. has launched the newly developed 75 A capacity SANMOTION R 3E Model servo amplifier. The lineup of the 3E Model series—which aims to pursue 3 E’s: evolved performance, eco-efficiency, and ease of use—has been enriched with the addition.
This new model is 36% smaller and 40% lighter than our conventional 100 A model, realizing the smallest system in the industry.*1
It is suitable for applications such as semiconductor manufacturing equipment, machine tools, and general industrial machinery.



1. Evolved performance

  • With the equipped high-speed positioning control function positioning time has been shortened to 1/3 compared with our conventional model, contributing to greatly reduced device takt time.
  • Stopping of motor torque can be executed in a safe manner in the event of device failure or when power removal is required.*2

2. Eco-efficient

  • There is a function for monitoring device power consumption, which contributes to saving energy.
  • Optimal device setup can be performed quickly, and setup time can be reduced by 50%.*3
  • By recording motor and amplifier operation status, malfunctioning systems can be easily restored.

*1: When used in combination with motors with rated outputs of 1.8 to 3.5 kW. Based on our own research as of March 28, 2016.

*2: Safe torque off (STO) function. It conforms to the international standard ISO 13849-1 with PL=e, and the IEC 61508 with SIL3.

*3: Compared with our conventional model as of March 28, 2016.


Control function Position control, Speed control, Torque control (switched with parameters)
Control system IGBT: PWM control sinusoidal drive
Main circuit power supply 3-Phase 200 to 240 VAC, +10, −15%, 50/60 Hz ± 3 Hz
Applicable motors SANMOTION R servo motors (output 1.8 to 3.5 kW), Linear servo motors
Properties / functions − Vibration suppression control, Model-following control
− High gain control
− Real-time switching between trajectory control and positioning control
− Micro-vibration control of motors at standstill
− Adaptive notch filter
− Power consumption monitoring function
Safe torque off (STO) function Conforms to international safety standards IEC 61508: SIL3, ISO 13849-1: PL=e
Support for startup & servo tuning − Virtual motor operation function to simulate operation of motor and amplifier
− Includes a function to navigate on servo tuning
− Drive recorder function for recording motor and amplifier operating status


Model no. Output capacity Dimensions (mm) Mass (kg) Safety function
RS3□07□□□□0 75A 160 × 95 × 190 2.5 No
RS3□07□□□□2 75A 160 × 95 × 190 2.5 Yes
(Safe Torque Off function)


Semiconductor manufacturing equipment, machine tools, and general industrial machinery.

Release Date

May 9, 2016



Note: The information stated in this release is current as of March 28, 2016.
“ SANMOTION ” is a trademark of SANYO DENKI CO., LTD.