Description
Technical Specifications:
| Parameter | Value |
|---|---|
| Rated Power | 25 HP (18.6 kW) |
| Input Voltage | 200–240V AC (single-phase) / 200–240V or 380–480V AC (three-phase) |
| Input Frequency | 50/60 Hz |
| Output Voltage | 0 to input voltage |
| Output Frequency | 0–400 Hz |
| Overload Capacity | 150% for 60 seconds, 200% for 3 seconds |
| Control Mode | V/F (Scalar), Sensorless Vector |
| Braking | Dynamic braking (internal transistor) |
| Communication | RS-485 (Modbus RTU) |
| Protection | Overcurrent, overvoltage, undervoltage, overtemperature, short circuit, ground fault |
| Enclosure Rating | NEMA 1 / IP20 (indoor use) |
| Operating Temperature | -10°C to +50°C |
| Dimensions | Approximately 350 x 210 x 150 mm |
| Weight | Approximately 8.5 kg |
Functional Features:
- Built-in PID controller for closed-loop process control
- Auto-tuning function for motor parameter identification
- Energy-saving mode with automatic V/F optimization
- Soft start/soft stop to reduce mechanical stress
- Multiple speed presets (up to 16 preset speeds)
- Fault history log with up to 10 recent fault records
- Sleep/wake function for energy conservation during idle periods
Working Principle:
The drive rectifies incoming AC power to DC using a diode bridge rectifier, then uses IGBT inverter switches to synthesize variable-frequency, variable-voltage AC output. The PWM (Pulse Width Modulation) technique controls motor speed by adjusting output frequency and voltage ratio.
Advantages:
- Compact footprint saves panel space
- Integrated PID eliminates need for external controller
- Sensorless vector control provides good torque at low speeds
- User-friendly keypad with LED display
Applicable Industries:
HVAC, water/wastewater pumping, industrial fans, compressors, material handling
Installation Requirements:
- Mount vertically on a flat, vibration-free surface
- Maintain minimum 100mm clearance above and below for ventilation
- Use shielded cable for motor connection (max 50m recommended)
- Ground the drive chassis and motor frame
Usage Notes:
- Perform motor auto-tuning before first operation
- Do not exceed rated current continuously
- Install input reactor if power supply has high harmonic distortion
- Check braking resistor requirement for high-inertia loads
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