AMK DT7-17-20-E00 A2525CD

Description

Technical Specifications

1. Electrical Parameters

• Rated Input Voltage: 3-phase AC 200–480 V, 50/60 Hz
• Continuous Output Current: 17 A
• Peak Overload Current: 25 A (A2525CD encoder current matching parameter)
• Rated Power Range: 5.5 kW – 7.5 kW
• Rated Speed: 100–4500 rpm
• Rated Continuous Torque: 29 N·m
• Peak Dynamic Torque: 78 N·m
• Insulation Class: Class H (180°C maximum winding temperature)

2. Encoder Module (A2525CD)

• Encoder Type: Multi-turn Hiperface DSL Absolute Encoder
• Resolution: 25-bit single-turn, 12-bit multi-turn
• Communication Interface: Single-cable hybrid power + feedback bus
• Operating Voltage for Encoder: 24 V DC ±10%

3. Cooling & Environmental

• Cooling Mode: Liquid forced circulation cooling
• Coolant Medium: Deionized water / ethylene glycol mixture
• Maximum Coolant Flow Rate: 8 L/min
• Operating Ambient Temperature: 0°C to +45°C (derate 10% power above 40°C)
• Storage Temperature: -30°C to +80°C
• Relative Humidity: ≤95% non-condensing
• Protection Grade: IP54 (optional IP65 full sealing)

4. Mechanical Dimensions & Weight

• Shaft Standard: Smooth solid shaft / keyway shaft optional
• Mounting Standard: IEC flange mounting
• Net Weight: 18.6 kg

Material Composition

• Motor Housing: High-strength cast aluminum alloy with anti-corrosion electrophoretic coating
• Rotor Core: Silicon steel lamination + embedded rare earth neodymium magnets (overmolded plastic fixing)
• Stator Winding: Class H copper enamel wire
• Cooling Channel: Integral cast stainless steel flow channel
• Encoder Housing (A2525CD): Die-cast aluminum, IP67 sealed
• Shaft: 42CrMo quenched tempered alloy steel

Structural Features

• Integrated internal liquid cooling runner, no external separate heat exchanger bracket
• Single-cable hybrid connector design (power + encoder signal in one plug)
• Back-end integrated A2525CD absolute encoder, zero backlash coupling structure
• Optional built-in electromagnetic holding brake (24 V DC release voltage)
• Dynamic balanced rotor assembly (G2.5 balancing grade)
• Hermetic sealed terminal chamber with O-ring waterproof seal

Working Principle

1. Drive outputs three-phase sinusoidal alternating current to stator winding to generate rotating magnetic field;
2. Rare earth permanent magnet rotor follows magnetic field rotation to output mechanical torque;
3. A2525CD absolute encoder collects real-time rotor position, speed and multi-turn rotation data, transmits digital feedback signal back to AMK servo drive via Hiperface DSL bus;
4. Drive executes closed-loop vector control, dynamically adjusts output current to maintain set torque, velocity or position target;
5. Liquid coolant circulates through internal casting channel to continuously take away winding loss heat, stabilize winding temperature under long-term high-load operation.

Function Features

• Three control modes: Torque control, Velocity control, Position control
• Zero low-speed torque ripple, full constant torque at 0 rpm
• Multi-turn absolute encoder eliminates zero point homing after power failure
• Overload dynamic response bandwidth >1.2 kHz
• Built-in winding temperature sensor (PT1000) for real-time thermal monitoring
• Supports flying restart, vibration suppression algorithm
• Compatible with EtherCAT, CANopen, PROFINET motion bus systems

Performance Advantages

1. Liquid cooling realizes 300% higher power density than air-cooled servo motors of same volume;
2. A2525CD high-resolution encoder achieves positioning accuracy ±0.001 mechanical degree;
3. Full sealed structure resists workshop oil mist, dust and cutting fluid corrosion;
4. Single cable wiring reduces on-site wiring workload by 50%;
5. Class H winding allows continuous full-load operation under high ambient temperature;
6. Long service life, minimum mechanical service life ≥50,000 operating hours.

Applicable Industries

Machine tool spindle drives, metal forming equipment, injection molding high-speed axes, lithium battery manufacturing equipment, packaging high-speed positioning lines, printing machinery, semiconductor precision handling equipment, heavy-duty automated linear actuators.

Installation Requirements

1. Mounting surface flatness ≤0.1 mm/m, flange contact surface free of burrs and foreign debris;
2. Liquid cooling pipeline connection torque strictly controlled at 12 N·m to prevent coolant leakage;
3. Hybrid power-feedback cable maximum length limited to 50 m with shielded wiring;
4. Coolant inlet temperature must not exceed 35°C, inlet pressure 0.2–0.6 MPa;
5. Encoder connector must be fully locked, avoid axial pulling force on wiring plug;
6. Install filter on cooling pipeline to block particle impurities ≥5 μm.

Usage Precautions

• Forbid dry-running without coolant circulation; dry operation causes winding burnout within 5 minutes;
• Do not apply axial impact load to output shaft, rotor magnetic ring will crack under strong impact;
• Coolant must use deionized water, tap water causes internal channel scaling and heat dissipation attenuation;
• Encoder cable cannot be routed alongside high-power frequency converter power cables without shielding separation;
• Overload continuous operation exceeding 150% rated current for more than 30 seconds triggers permanent winding damage;
• After long-term shutdown, drain residual coolant inside motor channel to avoid internal rust.