Servo Drives

High-precision controllers designed to work with servo motors. They provide the exact position, speed, and torque control required for robotics and complex motion sequences.

Yaskawa | Sigma-7 Servo Systems

Yaskawa’s Sigma-7 series is widely regarded as one of the most reliable motion platforms in the world. They are the preferred choice for high-speed “Pick & Place” robotics and semiconductor manufacturing due to their industry-leading frequency response and vibration suppression.

 

Sigma-7S (Single Axis)

Model Number: SGD7S-2R8A00A (400W / 230V)

Single-axis control; 3.1 kHz bandwidth; supports EtherCAT, PROFINET, and Mechatrolink-III.

Key Technical Specifications:

  • Features “Tuning-less” technology that maintains stable control even with inertia ratios up to 30:1.

  • Integrated filters automatically detect and cancel out machine resonance and mechanical noise.

  • Paired with 24-bit encoders (16 million pulses/rev) for ultra-smooth movement and positioning.

Sigma-7W (Dual Axis)

Model Number: SGD7W-2R8A20A (Dual 400W)

Controls two independent servo motors from a single unit, reducing cabinet footprint by up to 30%.

Key Technical Specifications:

  • Single power entry for two axes reduces wiring labor and components (circuit breakers, contactors).

  • Highly efficient power stage design minimizes thermal output in compact enclosures.

  • Single communication node controls both axes, reducing the cost of network switches and cabling.

Mitsubishi Electric | MELSERVO Series

Mitsubishi’s MELSERVO series (specifically the J5) is a powerhouse in the Asian and global markets. They lead the industry in “Batteryless” technology, eliminating the need for maintenance-heavy backup batteries in absolute positioning systems.

MELSERVO-J5

Model Number: MR-JET-40G (Ethernet/CC-Link IE TSN)

Industry-leading 3.5 kHz frequency response; CC-Link IE TSN connectivity; AI-based diagnostics.

Key Technical Specifications:

  • Uses a unique mechanical system to track position without batteries, removing a major point of failure.

  • Built-in “Maisy” AI detects early signs of mechanical wear in ball screws and belts via the drive’s current signature.

  • Communication cycles as low as 31.25 microseconds for the most demanding multi-axis synchronization.v

MELSERVO-J4

Model Number: MR-J4-40A (General Purpose / Pulse)

High-speed SSCNET III/H communication; widely used in existing CNC and packaging lines.

Key Technical Specifications:

  • Automatically sets the gain and filters to their optimum levels with a single click in the software.

  • Supports “Safe Torque Off” (STO) and “Safe Stop 1” (SS1) as standard features for operator protection.

  • Excellent backward compatibility for sourcing replacements in older machines using SSCNET fiber optics.

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