RDM Series Joint Servo Drivers for Collaborative Robots

RDM cooperative robot joint servo drive module is a high performance, DC power supply, extremely compact digital universal servo driver based on advanced FPGA technology. The maximum power can reach 1000W. The position, speed and torque of servo motor are controlled by EtherCAT/CANopen bus, which greatly reduces the cost of each node in EtherCAT/CANopen bus multi-axis system.

As an EtherCAT/CANopen slave station, the RDM driver module runs with the CoE protocol of DSP-402, and supports position/speed/torque cycle synchronization, position/speed/torque curve, PVT and back-to-origin mode.

Through RS232 or EtherCAT communication interface and PC software, system parameters can be programmed to adjust, firmware upgrade, and configuration parameters can be saved or read.

  • Parameters
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Spec Parameter

RDM Servo Driver Module
Supply Voltage +18-70VDC
Rated Current 15A
Peak Current 30A
Rated Voltage 48VDC
Max Power
Hollow diameter 9mm
Shape Size small size:74*21mm
big size:91*21mm
Weight small size:50g
big size:60g
Communication mode EtherCAT、
Feedback mode Main Encoder: Panasonic Incremental Encoder (A format), SSI, BISS (differential or single-ended), EnDat, Absolute A, Domochuan, Panasonic Absolute Encoder A, Nikon, Sanyo Absolute Encoder A
Digital IO 1 Digital Input,1 Digital Output
Analogue quantity IO 2 Analog input
temperature normal operation:0-45℃,storage:-40℃-85℃
humidity 0% ~ 95%,Non Condensing
contaminated pollution grade 2
environment IEC68-2: 1990

Main Features

Control Model:
Position/Speed/Torque Cycle Synchronization (CSP, CSV, CST)
Motion Sequence, Point-to-Point, PVT
Electronic Gears and Cams
Position, Speed and Torque Curve Control Mode
Operation mode:
Independent Programmable
 or distributed network control

Control Command:
CoE(CAN application layer over EtherCAT)/CANopen

Independent Programmable Control:
A Simple and Visual Programming Tool
32 Programmable Motion Sequences
Programmable priority, which can be selected and executed by digital input or 32 registers
32 registers can be accessed through RS232 communication
Programmable Power-on Automatic Operation Program
Programmable Motion Error Response Types

Contains the following standard motion control functions
Motion (position, speed, torque, cam, return to origin)
Waiting (input, delay, location, motion completion, parameters or events) conditional Jump
Setting Gain, Limitation, Tracking Window
Setting Output, Position Triggering Output
Enabling or prohibiting drives
Mathematics and Logical Operations
Setting up Operation Mode
Setting and reading parameter variables
Speed single-stage filtering

Communication Control:
Input and output:
1 Digital Output for Brake Control
1 Universal Digital Output
1 General Digital Input Port

Main Encoder:
Panasonic Incremental Encoder (A Format)
SSI, BISS (Differential or Single End)
EnDat, Absolute A
Domochuan and Panasonic Absolute Encoder A
Nikon and Sanyo Absolute Encoder A

Encoder 2:
Differential or single-ended orthogonal incremental encoder, maximum rate 5M line/s (20M after 4-fold frequency)

Techmotion configuration and monitoring software

Windows-based Operating System
Parameter Configuration of Motor and Sensor
Adjusting PID parameters
test run
Real-time analysis and evaluation of oscilloscope
Error Alarm Record
Parameter state monitoring
Flexible, fast, simple and easy to use

Mechanical Dimension Profile

Main Applications

 industrial robots, automation equipment, general automation equipment, medical treatment, etc. industrial robots, automation equipment, general automation equipment, medical treatment, etc.

Contact US

  • Telephone:0755-26712201 0755-26712221
  • Fax:+86-755-26712958
  • Email:sales@techservo.com
  • Address:5th Floor,12 Blocks,Nangang NO.2 Industrial Zone,
    1026 Songbai Road,Nanshan District, Shenzhen
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