Model Definition

DDS2.1: Servo drive series compatible with DIAX02 system

W: Internal cabinet convection air cooling

025: 25 A continuous rated current, 50 A short-term peak current

Technical Specifications

Electrical Parameters

DC bus voltage: 300 V DC ±15%, supplied by TVD or TVM power units

Control power supply: 24 V DC, operating range 20 V DC to 28 V DC

Continuous output current: 25 A

Peak output current: 50 A for short-time operation

Current loop cycle: 125 μs

Speed loop cycle: 500 μs

Position loop cycle: 2 ms

Power dissipation: Approximately 110 W

Compatible motors: MDD, MKD synchronous servo motors, LAR, LAF linear motors, 2AD series motors

Mechanical & Environmental Parameters

Cooling method: Internal cabinet convection air cooling

Protection class: IP20 for front panel, IP10 for the whole unit

Operating temperature: 0 °C to +45 °C, 20% performance derating at 55 °C

Storage temperature: -30 °C to +85 °C

Maximum installation altitude: 1000 m, 35% performance derating above 1000 m

Dimensions (W×H×D): 60 mm × 408 mm × 180 mm

Weight: Approximately 5.5 kg

Interface and Communication Configuration

Motor feedback: X4 dual-channel interface compatible with digital encoder and resolver signals

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

Communication: Reserved expansion slots for optional SERCOS, analog and fieldbus modules

Digital I/O: 6 isolated inputs and 3 isolated outputs for basic control signals

Service port: RS232 interface for parameter setting and fault diagnosis via IndraWorks

Expansion slots: U1 to U5 for installing communication, I/O and firmware modules

Core Functions

Current, speed and position three-loop control guarantees stable and precise motion performance.

Dual feedback compatibility adapts to different types of servo motors.

Compact internal cooling structure suits installation in narrow control cabinets.

Built-in comprehensive protection against overvoltage, undervoltage, overcurrent, short circuit, overheating and feedback signal failure.

Supports torque, speed and position control modes to meet various working requirements.

Modular structure simplifies daily maintenance and function expansion.

Application Scenarios

Auxiliary axes of CNC machine tools

Light and medium load textile, printing and packaging machinery

Small automated assembly lines and conveying equipment

DIAX02 system upgrade and replacement projects requiring 25 A continuous current

General automation equipment with limited cabinet installation space

Usage and Maintenance

Ensure unobstructed air circulation inside the cabinet to maintain heat dissipation efficiency.

Keep ambient temperature below 45 °C to avoid performance degradation.

Complete all wiring of power, feedback and control circuits before power-on.

Configure parameters via IndraWorks according to the matched motor and actual load.

Clean heat dissipation components and air passages every six months, and inspect terminal connections regularly.

Calibrate control loops and feedback signals once a year to ensure long-term stable operation.