Product News

SANYO DENKI Develops 400 VAC Multi-Axis Servo Amplifier

December 11, 2017

SANYO DENKI CO., LTD. has developed new AC servo amplifiers, expanding the lineup of the SANMOTION R 3E Model series.
This servo amplifier has been equipped with a function for predicting equipment failures using the operating data of the amplifier and motor.
It can operate 5.5 to 30 kW motors smoothly, making it ideal for equipment such as machine tools and injection molding machines.

Control unit


Power supply unit


Amplifier unit



1. Flexible and space-saving system configuration

Multiple amplifier units can be selected for combining with one power supply unit to build a multi-axis servo amplifier.
This flexibility allows you to configure the optimal servo amplifier for your needs while minimizing the footprint.

2. High-speed EtherCAT fieldbus communication

With a 100 Mbps high-speed and highly reliable communication, the EtherCAT fieldbus* achieves smooth device operation.
It enables the real-time sharing of encoder position information within the control unit, increasing the precision of motor synchronous operation.
It also boosts the output of motors in parallel operation as well.

3. Eco-efficient

Motor regenerative power can be used to drive other motors, contributing to improving device energy efficiency.

* Fieldbus is an all-digital, serial communications protocol used for communications among field devices and to the controller.


Control unit

Model no. RM2C4H4 RM2C1A0
No. of controlled axes Up to 4 1
Interface EtherCAT interface Analog interface
Safety function Safe Torque Off function None
Dimensions (mm) 285 (W) × 190 (H) × 15 (D) 80 (W) × 180 (H) × 17 (D)

Power supply unit

Model no. RM2PCA160
Input power supply
voltage, current
Main circuit power supply: 3-phase 380 to 480 VAC (-15%, +10%), 50/60 ±3 Hz
Control circuit power supply: 24 VDC ±15%, 3.4 A
Rated output capacity 16 kW
Input power capacity 27 kVA
Compatible amplifier
unit capacity
25 to 150 A
Frame shape Open frame
Dimensions (mm) 184 (W) × 380 (H) × 168 (D)

Amplifier unit

Model no. RM2DCA025 RM2DCA050 RM2DCA075 RM2DCA150
Input power supply
voltage, current
Main circuit power supply: 457 to 747 VDC
Control circuit power supply: 24 VDC ±15%, 1.3 A
Amplifier capacity 25 A 50 A 75 A 150 A
Compatible motor output 0.55 to 2 kW 1 to 3.5 kW 3.5 to 5.5 kW 5.5 to 15 kW
Compatible encoder Battery-less optical absolute encoder
Frame shape Open frame
Dimensions (mm) 154 (W) × 380 (H) × 166 (D) 194 (W) × 380 (H) × 168 (D)

PDF Catalog

English [482KB]

Order Start Date

February 1, 2018



Note: The information stated in this release is current as of December 11, 2017.
“ SANMOTION ” is a trademark of SANYO DENKI CO., LTD.

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