Product News

Evolved, Eco-efficient, and Easy to Use
AC Servo Amplifier "SANMOTION R" 3E Model


December 11, 2013

SANYO DENKI CO., LTD. has expanded its lineup of AC servo systems with the newly developed "SANMOTION R" 3E Model.
3E Model AC servo amplifiers, with evolved basic features including high response performance, pursue further eco-efficiency and ease of use. The new models are suitable for chip mounter, semiconductor manufacturing machine and machine tool applications.



1. Evolved

  • A faster speed frequency response*1 of 2.2 kHz is approximately twice as high as our conventional product.*2
    A function which shortens positioning time contributes to greatly reducing machine takt time.
    Enhanced tracking and vibration suppression functions improve machine tool processing quality.
  • With an improved motor torque off safety function*3 the 3E Model conforms to international standards SIL3/IEC61508 and PL=e/ISO13849-1. It is sufficiently reliable to be used for applications that require high safety such as in medical devices.

2. Eco-efficient

  • The new amplifiers decrease power loss during operation by up to 7 %, and standby power consumption by up to 10 %,*2 contributing to energy savings.
  • There is a function for monitoring device power consumption.

3. Easy to Use

  • The new amplifiers have a variety of functions that facilitate device startup, servo tuning, and troubleshooting. These functions enable fast and easy usage of servo systems.

*1: Frequency indicating how stably the motor follows speed commands from the servo amplifier. A larger value represents movement more responsive to commands.

*2: Compared with our conventional AC servo amplifier, "SANMOTION R" ADVANCED MODEL.

*3: Safe Torque Off (STO) function


Control function Position control / Speed control / Torque control (Parameter changeover)
Control system IGBT: PWM control Sinusoidal drive
Main circuit power 200 V AC input 3-phase: 200 to 240 V AC +10, -15 %, 50 / 60 Hz ± 3 Hz
Single-phase: 200 to 240 V AC +10, -15 %, 50 / 60 Hz ± 3 Hz
100 V AC input Single-phase: 100 to 120 V AC +10, -15 %, 50 / 60 Hz ± 3 Hz
Applicable motors SANMOTION R servo motors (30 W - 2 kW), linear servo motors
Properties / functions
  • Vibration suppression control / Model based tracking control
  • High gain control
  • Real-time switching between track control and positioning control
  • Microvibration suppression control when settling
  • Adaptive notch filter
  • Power consumption monitoring function
Safe Torque Off (STO) function Conforms to functional safety standards SIL3/IEC61508 and PL=e/ISO13849-1
Support for startup
and servo tuning
  • Virtual motor operation function to simulate movements of the motor and the amplifier
  • Includes a function to navigate and facilitate servo tuning
  • Drive recorder function to record motor and amplifier operating status


Model no. Output capacity Dimensions (mm) Mass (kg) Safety function
RS3□01□□□□0 10 A 160×40×130 0.68 No
RS3□02□□□□0 20 A 160×40×130 0.70
RS3□03□□□□0 30 A 160×50×130 0.80
RS3□05□□□□0 50 A 160×85×130 1.55
RS3□01□□□□2 10 A 160×40×130 0.68 Yes (Safe Torque Off function)
RS3□02□□□□2 20 A 160×40×130 0.70
RS3□03□□□□2 30 A 160×50×130 0.80
RS3□05□□□□2 50 A 160×85×130 1.55


It is best suitable for chip mounter, semiconductor equipment, and machine tool.

Release Date

January 6, 2014
*The information stated in this release is current as of December 11, 2013.
“ SANMOTION ” is a trademark of SANYO DENKI CO.,LTD.