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

RS01: Dedicated resolver signal processing interface

01: Optimized hardware revision for improved stability and anti-interference performance

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 and 2AD series motors equipped with resolver

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 interface specially designed for resolver signal reception and processing

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 additional I/O and functional modules

Core Functions

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

RS01 resolver interface owns outstanding anti-interference capability, adapting to harsh working conditions.

01 upgraded hardware enhances overall operation reliability and signal processing stability.

Compact internal cooling structure suits installation in narrow control cabinets.

Complete protection against overvoltage, undervoltage, overcurrent, short circuit, overheating and feedback signal loss.

Supports torque, speed and position control modes to satisfy various application demands.

Modular structure simplifies routine maintenance and later function expansion.

Application Scenarios

Auxiliary axes of CNC machine tools using resolver-type servo motors

Textile, printing and packaging machinery running in strong electromagnetic interference environments

Small and medium-sized automated assembly lines and conveying equipment

DIAX02 system upgrade projects requiring resolver feedback configuration

General automation devices with limited cabinet space and high stability requirements

Usage and Maintenance

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

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

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

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

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

Calibrate control loops and resolver signals once a year to ensure long-term reliable operation.