Description
Magnetek MG2-1F-3FE
Technical Specifications
- Product type: Crane dedicated inverter
- Motor: Three-phase asynchronous
- Input: 380 to 480 VAC
- Power: Selected by model
- Output frequency: 0 to 60 Hz
- Control: Vector
- Overload: 150 % 1 min
- Braking: Built-in braking chopper
- Protection: IP20
- Temperature: -10 °C to +40 °C
- Storage: -20 °C to +65 °C
- Humidity: 5 % to 95 %, non-condensing
- Installation: Cabinet mount
- Communication: Profinet/DeviceNet option
Functional Features
- Hoist and travel vector control
- Anti-sway algorithm suppresses load swing
- Precise positioning and slow creep
- 200 % heavy-load starting torque
- Built-in braking unit and safety brake control
- Overload, overcurrent, overvoltage protection
- Crane dedicated fault diagnosis
- Brake sequencing control
- Communication to PLC
- Metallurgical high-temperature dusty environment
Application Scenarios
- Overhead crane trolley and bridge travel
- Hoist mechanism speed control
- Metallurgical casting crane heavy load
- Gantry and port crane speed control
- Rail-mounted transfer cart drive
Materials and Construction
- Housing: Metal painted
- Power: IGBT modules
- PCB: FR4 board
- Capacitors: Electrolytic
- Connectors: Terminal block
- Fan: Temperature-controlled
Structural Features
- Vertical metal cabinet
- Front operator panel and cooling fan
- Bottom power terminals
- Internal IGBT heat sink air duct
- External braking resistor
- Modular power structure
Working Principle Three-phase AC is rectified to DC; IGBTs invert to variable voltage/frequency to drive the crane motor. The vector control algorithm computes torque from load current; hoisting provides 200 % starting torque. The anti-sway algorithm corrects the speed curve based on position deviation. The braking unit dissipates lowering energy. Brake timing links to motor torque to prevent hook slip.
Installation Requirements
- Vertical cabinet mount, top/bottom ventilation
- Shielded motor power cable
- Size braking resistor per manual
- Clean ventilated cabinet
- Temperature -10 °C to +40 °C
- Run motor auto-tuning in crane software after power-up
- Reliable grounding
Precautions
- Wait for capacitor discharge after power-off before wiring
- Brake timing commissioning by qualified personnel
- Do not short braking resistor
- Motor parameter auto-tuning must be performed
- Periodically inspect cooling fan
- Store spares in dry environment
