Model Definition

• CG: High-power compact servo drive series

• 31: 31 A continuous rated current

• 24: 24 V DC control power supply

Technical Specifications

Electrical Parameters

• Main power supply: 3-phase 380–480 V AC, ±10%, 50/60 Hz

• Control power supply: 24 V DC ±15%

• Continuous output current: 31 A

• Peak output current: 77 A (≤30 s)

• Current loop cycle: 80 μs

• Speed loop cycle: 320 μs

• Position loop cycle: 1.28 ms

• Power dissipation: Approx. 180 W

• Compatible motors: 380 V-class synchronous servo motors (2.2–15 kW), incremental/absolute encoder feedback

Mechanical & Environmental Parameters

• Cooling method: Integrated aluminum heat sink + high-efficiency 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): 90 mm × 450 mm × 210 mm

• Weight: Approx. 7.5 kg

Interface and Communication Configuration

• Motor feedback: X6 dual-channel interface (incremental/absolute encoder, resolver)

• System bus: 560 V DC shared bus for multi-axis parallel connection

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

• Digital I/O: 10 isolated inputs, 6 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–U4 for communication/encoder modules

Core Functions

• Current/speed/position three-loop control with 4 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, positioning, and gantry synchronization functions

• Modular design for easy maintenance and function expansion

Application Scenarios

• CNC machine tools (milling, turning, grinding) main/heavy-load auxiliary axes

• Industrial robots, gantry robots, and high-power multi-axis positioning systems

• Textile, printing, and packaging machinery with high-power synchronous control

• Automated assembly lines, material handling, and heavy conveying equipment

• Space-constrained equipment requiring high power 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