CG26-H Digital Servo Drive
May 29, 2026

CG26-H Digital Servo Drive

The CG26-H is a compact, high-torque digital AC servo drive from the CG series, designed for high-precision motion control in limited-space automation systems. It adopts advanced vector control technology with an integrated heat sink, delivering stable output and strong dynamic response. Optimized for compatibility with mainstream servo motors and CNC systems, it features high reliability, easy commissioning, and excellent cost-performance, widely used in CNC machines, robotics, and general industrial automation equipment.

Description

Model Definition

  • CG: High-torque compact servo drive series

  • 26: Series specification code (26 A continuous current rating)

  • H: High-performance hardware version (enhanced heat dissipation & anti-interference)

Technical Specifications

Electrical Parameters

  • Main power supply: 3-phase 200–240 V AC, ±10%, 50/60 Hz

  • Control power supply: 24 V DC ±15%

  • Continuous output current: 26 A

  • Peak output current: 65 A (≤30 s)

  • Current loop cycle: 100 μs

  • Speed loop cycle: 400 μs

  • Position loop cycle: 1.6 ms

  • Power dissipation: Approx. 130 W

  • Compatible motors: 200 V-class synchronous servo motors (1–7.5 kW), incremental/absolute encoder feedback

Mechanical & Environmental Parameters

  • Cooling method: Integrated aluminum heat sink + forced air cooling

  • Protection class: IP20 (front panel), IP10 (unit)

  • Operating temperature: 0 °C to +50 °C; 20% derating at 55 °C

  • Storage temperature: -25 °C to +85 °C

  • Max installation altitude: 1000 m; 30% derating above 1000 m

  • Dimensions (W×H×D): 80 mm × 420 mm × 195 mm

  • Weight: Approx. 6.8 kg

Interface and Communication Configuration

  • Motor feedback: X5 dual-channel interface (incremental/absolute encoder, resolver)

  • System bus: 300 V DC shared bus for multi-axis parallel connection

  • Communication: Standard pulse/direction, optional Modbus-RTU/EtherCAT

  • Digital I/O: 8 isolated inputs, 4 isolated outputs (NPN/PNP configurable)

  • Analog interface: ±10 V speed/torque command input, speed monitoring output

  • Service port: RS232 + USB for parameter setting and fault diagnosis

  • Expansion slots: U1–U3 for communication/encoder modules

Core Functions

  • Current/speed/position three-loop control with 3 kHz speed loop bandwidth

  • High anti-interference design for stable operation in harsh industrial environments

  • Overvoltage/undervoltage/overcurrent/short-circuit/overheating/encoder fault protection

  • Supports torque/speed/position control modes with smooth switching

  • Built-in electronic gear and positioning function for standalone operation

  • Modular design for easy maintenance and function expansion

Application Scenarios

  • CNC machine tools (milling, turning, grinding) feed/auxiliary axes

  • Industrial robots, delta robots, and multi-axis positioning systems

  • Textile, printing, and packaging machinery with synchronous control

  • Automated assembly lines, material handling, and conveying equipment

  • Space-constrained equipment requiring high torque and compact size

Usage and Maintenance

  • Ensure cabinet ventilation; keep ambient temperature ≤50 °C

  • Complete power, feedback, bus, and control wiring before power-on

  • Set parameters and configure control mode via PC software

  • Clean heat sink and fans every 6 months; check terminal tightness

  • Calibrate encoder and control loops annually for long-term stability


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