is a micro-compact variable speed drive (VFD) from the FVR-Micro series, designed for single-phase 200V applications. It provides a power output of 0.75 kW (1 HP), making it a robust step up from the 0.4 kW model for driving three-phase induction motors in small industrial machinery like conveyors, mixers, and pumps.
Manufacturer:
Fuji Electric
Series:
FVR-Micro
Model:
FVR0.75AS1S-7E
Application:
pumps / fans / general purpose
Capacity, kW:
0.75
Current, :
4.2
Main power supply, V:
200
Phase:
1
Output frequency, Hz:
0,1-400
Enclosure:
IP20
Overload capacity, % per 1 min.:
150
EMC filter:
-
Braking unit:
+
Analog input:
2
Digital input:
6
Starting torque:
+
PID:
PID - control
Sensorless vector control:
+
Operation temperature, :
-10.....+50
Dimensions (W x H x D), mm:
68x128x116
Weight, kg:
0,6
Key Technical Specifications
Power Output: 0.75 kW (1 HP).
Input Voltage: Single-phase 200V to 240V AC (+10% / -10%).
Rated Output Current: 4.2 Amps.
Frequency Range: 0.1 Hz to 400 Hz.
Overload Capacity: 150% of rated current for 1 minute.
Cooling: Fan cooling (unlike the natural cooling on some smaller models).
Physical Dimensions in Inches
The 0.75 kW model maintains the same compact footprint as the 0.4 kW version, allowing for high power density in small panels.
Width: 2.68 inches (68 mm)
Height: 5.04 inches (128 mm)
Depth: 4.57 inches (116 mm)
Weight: 1.32 lbs (0.6 kg).
The Fuji Electric FVR0.75AS1S-7E functions as a motor speed controller that converts single-phase power into variable-frequency 3-phase power for 0.75 kW (1 HP) motors. It uses V/f (Volts per Hertz) control to manage motor performance across a wide range of industrial applications.
Core Control Functions
Variable Speed Regulation: Provides smooth control from 0.1 to 400 Hz, allowing for precise adjustments to conveyor speeds, fan airflow, or pump pressure.
PID Control: An integrated feedback loop that automatically adjusts motor speed to maintain a constant process variable (like keeping water pressure stable regardless of demand).
Torque Boost: Automatically increases output voltage at low speeds to provide the necessary starting torque for heavy loads.
Slip Compensation: Monitors motor load and adjusts the output frequency to maintain a constant RPM, even when the mechanical load fluctuates.
Operational Intelligence
8-Step Speed Control: Allows you to pre-program up to 8 different speeds that can be triggered via external digital inputs.
Jogging Function: A dedicated "inch" mode for manual control during machine setup or maintenance.
Energy Saving Mode: Dynamically reduces motor voltage during periods of low demand to minimize power consumption.
Protection & Safety
High Overload Capacity: Handles up to 150% current for 1 minute, preventing nuisance trips during heavy startup phases.
Auto-Restart: Can be programmed to automatically restart the motor after a momentary power failure or a safe fault clearance.
Electronic Thermal Overload: Built-in software protection that monitors motor temperature (based on current draw) to prevent burnout without needing external thermal relays.
Connectivity
RS-485 Communication: Includes a standard port using the Modbus RTU protocol, enabling the drive to be controlled and monitored remotely by a PLC or an HMI (like the MT8052iP).
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