Manufacturer: Mitsubishi Electric
Product No.: FR-A820-0.75k
Country of origin:United States
Product Type: Variable Frequency Drives
Payment: T/T, Western Union
Weight: 3000g
Shipping port: Xiamen
Warranty: 12 months
Engineered to meet the demands of highly dynamic industrial motor applications, the Mitsubishi Electric FR-A820-0.75k is a premium FREQROL-A800 series variable frequency drive designed for high-precision speed and torque control. This drive accommodates multiple operating duties, including Normal Duty (ND) at 0.75 kW, Heavy Duty (HD) at 0.4 kW, and Light/Super Light Duty (LD/SLD) up to 1.5 kW, allowing electrical engineers to configure a single physical chassis for varying load profiles. By integrating advanced motor control algorithms like real sensorless vector control and PM sensorless vector control, the FR-A820-0.75k maintains stable performance and high starting torque across a broad frequency spectrum of 0.2 to 590 Hz.
| Parameter | Specification |
|---|---|
| Manufacturer | Mitsubishi Electric |
| Model Number | FR-A820-0.75k |
| Series Name | FREQROL-A800 |
| Power Supply Voltage | 3-Phase 200 to 240 VAC, 50 Hz / 60 Hz |
| Allowable Voltage Fluctuation | 170 to 264 VAC |
| Motor Capacity (ND / Default) | 0.75 kW |
| Motor Capacity (HD / High Duty) | 0.4 kW |
| Motor Capacity (LD / SLD) | 1.5 kW |
| Rated Output Current (ND) | 5.0 A |
| Output Frequency Range | 0.2 to 590 Hz (Vector/Sensorless limits to 400 Hz) |
| Cooling Method | Self-cooling |
| Protective Rating | IP20 (Closed Type) |
| Ambient Operating Temperature | -10 to +50 degC (LD, ND, HD ratings, non-freezing) |
| Ambient Storage Temperature | -20 to +65 degC |
| Net Weight | 2.2 kg |
| Shipping Weight (Calculated) | 3.0 kg |
| Terminal / Port | Function Assignment |
|---|---|
| Terminals 2, 4 | Analog input: 0 to 10 V, 0 to 5 V, or 4 to 20 mA (selectable) |
| Terminal 1 | Auxiliary analog input: -10 to +10 V or -5 to +5 V |
| Digital Inputs (12 Points) | Configurable control signals (Start, Forward/Reverse, Jog, Reset, Speed Selection) |
| Open Collector Outputs (5 Points) | Configurable status signals (Run, Up-to-speed, Overload Alarm) |
| Relay Outputs (2 Points) | Fault and high-current alarm configuration |
| RJ-45 Connector | RS-485 Modbus RTU interface / Parameter unit connection |
The FR-A820-0.75k directly replaces older generation FR-A720-0.75K inverters. While basic terminal block signals are layout-compatible, always review software and parameter sets using FR Configurator2 to ensure custom terminal logic mappings transition smoothly without triggering internal interlocking conflicts.
When sizing this VFD for high starting torque loads in Heavy Duty (HD) mode, remember the maximum motor capacity is reduced to 0.4 kW. Attempting to run a 0.75 kW motor under high-vibration, high-duty cycles on the HD parameter mapping will cause rapid thermal accumulation and lead to E.THT (Inverter Overload) faults. Ensure proper clearance of at least 50 mm above and below the self-cooling frame inside sealed enclosures to avoid heat trapping.
For setups utilizing Real Sensorless Vector Control or PM Sensorless Vector Control, performing an offline auto-tuning sequence (Parameter 96) is highly critical. Tuning must be executed with the motor uncoupled from the gearbox or mechanical load to prevent incorrect stator resistance and inductance readings, which are the root cause of E.OC1 (Overcurrent during acceleration) errors at low speeds.
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| Country of origin |
United States
|
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