Hitachi VFD Drives
Hitachi provides Variable Frequency Drives (VFDs) known for high efficiency, reliability, and advanced motor control. These drives are widely used in industrial automation, HVAC, water treatment, oil & gas, cranes, elevators, and heavy machinery applications.
1. General Specifications of Hitachi VFD Drives
1.1 Voltage & Power Range
- Low Voltage Drives (LV Drives)
- Single-phase: 200V-240V (up to 3.7 kW)
- Three-phase: 200V-240V / 380V-480V / 500V-690V (up to 1.5 MW)
- Medium Voltage Drives (MV Drives)
- Voltage Range: 3.3kV – 11kV
- Power Range: Up to 20 MW
1.2 Motor Compatibility
- Induction Motors (IM)
- Permanent Magnet Synchronous Motors (PMSM)
- Synchronous Reluctance Motors
1.3 Control Features
- V/F (Volts per Hertz) Control
- Open-loop & Closed-loop Vector Control
- Senseless Vector Control (SVC)
- Field-Oriented Control (FOC) for High Torque Applications
- Regenerative Braking for Energy Recovery
- Torque Boost Function for Heavy Loads
1.4 Protection & Enclosure Ratings
- Ingress Protection (IP Ratings):
- IP20, IP21 (Standard Indoor Use)
- IP54, IP55, IP66 (Harsh Industrial Environments)
- Overload Capacity:
- Normal Duty (ND): 120% for 60s
- Heavy Duty (HD): 150% for 60s
1.5 Communication Protocols
- Modbus RTU / Modbus TCP
- Ethernet/IP, PROFINET, PROFIBUS
- CAN open, Device Net
- BACnet (For HVAC Applications)
1.6 Special Features
✔ Auto-Tuning Function for Easy Motor Setup
✔ Built-in EMC Filter for Noise Reduction
✔ PID Control for Process Applications
✔ Multi-motor Control & HVAC-Specific Features
✔ Safety Integrated (STO, SIL 2 / SIL 3)
2. Popular Hitachi VFD Models & Their Specifications
2.1 Hitachi WJ200 (Compact & General-Purpose Drive)
- Power Range: 0.2 kW – 15 kW
- Voltage: 1PH 200-240V / 3PH 380-480V
- Application: Fans, conveyors, small pumps
- IP Rating: IP20
2.2 Hitachi NE-S1 (Simple & Cost-Effective VFD)
- Power Range: 0.2 kW – 4.0 kW
- Voltage: 1PH 200V-240V / 3PH 380V-480V
- Application: Small conveyors, pumps, and basic motor control
- Special Feature: Easy setup, built-in EMC filter
2.3 Hitachi SJ-P1 (High-Performance Vector Control Drive)
- Power Range: 0.75 kW – 132 kW
- Voltage: 3PH 380V-690V
- Application: Industrial automation, CNC machines, robotics
- Special Feature: Advanced vector control, high overload capacity
2.4 Hitachi SJ700D (Heavy-Duty Industrial Drive)
- Power Range: 0.75 kW – 1.5 MW
- Voltage: 3PH 380V-690V
- Application: Cranes, hoists, compressors, oil & gas
- Special Feature: High torque performance, sensorless vector control
2.5 Hitachi SJ-P1 HVAC (Drive for HVAC & Pump Applications)
- Power Range: 0.75 kW – 560 kW
- Voltage: 3PH 200V-690V
- Application: HVAC, water treatment, air handling systems
- Special Feature: Built-in BACnet communication, energy-saving features
2.6 Hitachi Medium Voltage VFD (For Heavy Industry)
- Power Range: 0.3 MW – 20 MW
- Voltage: 3.3kV – 11kV
- Application: Oil & gas, marine, mining, power plants
- Special Feature: High efficiency, modular design, low harmonics
3. Key Benefits of Hitachi VFDs
✔ Energy-efficient motor control to reduce power consumption
✔ Precise speed & torque control for demanding applications
✔ User-friendly interface & diagnostics for easy setup
✔ Multiple communication protocols for seamless integration
✔ Robust design with high IP ratings for industrial environments
For detailed technical specifications, visit the Hitachi official website or check the respective product manuals. Let me know if you need specifications for a specific model! ????
