Product News

SANYO DENKI Develops New 400 VAC Servo Amplifiers
for SANMOTION R 3E Model Series

February 7, 2017

SANYO DENKI CO., LTD. has expanded its lineup of SANMOTION R 3E Model servo amplifier series.
Equipped with various functions such as high-speed positioning control and Safe Torque Off (STO)1 functions, this amplifier has achieved further evolved performance, eco-efficiency, and reliability.
It is suitable for applications such as semiconductor manufacturing equipment, machine tools, and general industrial machinery.



1. Eco-efficient

Power consumption2 and standby power have been reduced by a maximum of 15% and 29%, respectively.3

2. Holding brake4 equipped as standard

This servo amplifier will be equipped as standard with holding brake.
This eliminates the need for designing a new control circuit and saves wiring, thus achieving cost reduction.

1 Safe Torque Off (STO) function. It conforms to the international standards ISO 13849-1 with PL=e, and IEC 61508 with SIL 3.

2 When operating at the amplifier’s rated output.

3 When compared with our current model RS1C02A.

4 Holding brake holds a load or motor in position when power is cut off, preventing a load from falling or an accident from happening.


Control function Position control, Speed control, Torque control (switched with parameters)
Control method IGBT, sinusoidal PWM control
Control circuit power supply 24 VDC ± 10%
Main circuit power supply 3-Phase 380 to 480 VAC   +10%, -15%     50/60 Hz ± 3 Hz
Compatible motor SANMOTION R servo motors with output 0.55 to 5.5 kW
Properties & functions
  • • Vibration suppression control, model-following control
  • • High gain control
  • • Adaptive notch filter
  • • Real-time switching between trajectory control and positioning control
  • • Micro-vibration control of motors at standstill
  • • Power consumption monitoring function
Safe torque off (STO) function Conforms to international safety standards IEC 61508: SIL3, and ISO 13849-1: PL=e
Support for startup & servo tuning
  • Virtual motor operation function to simulate operation of motor and amplifier
  • Navigation function on servo tuning
  • Drive recorder function for recording motor and amplifier operating status


We also have analog/pulse type available.

Model no. Amplifier capacity (A) Dimension (mm) Mass (kg) Safety function
RS3□02□□□□0 25 75 × 205 × 235 2.5 No
RS3□05□□□□0 50 100 × 205 × 235 4.7
RS3□10□□□□0 100 175 × 205 × 235 8.5
RS3□02□□□□2 25 75 × 205 × 235 2.5 Yes
(Safe Torque Off function)
RS3□05□□□□2 50 100 × 205 × 235 4.7
RS3□10□□□□2 100 175 × 205 × 235 8.5


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

Release Date

March 1, 2017

PDF Catalog

English [675KB]



Note: The information stated in this release is current as of February 7, 2017.
“ SANMOTION ” is a trademark of SANYO DENKI CO., LTD.