1-phase 220V to 3-phase 380V VFD for sales, 50Hz/ 60Hz input frequency, 0-400Hz output frequency, has RS485 communication port. 25 hp VFD can be used for constant torque loads and a phase converter.
||25 hp (18.5 kW)
||1 phase 220~240V AC
|Output voltage (Optional)
||3 phase AC 380V/ 400V/ 415V/ 440V/ 460V (Note: 440V, 460V output voltage only for the 1-phase 240V input VFD)
|Over load capacity
||150% of rated current for 1 minute, 180% of rated current for 3 seconds
Sensorless vector control;
||150% of rating torque at 1 Hz
|Speed control accuracy
||≤±0.5% of rating synchronous speed
||Digital setting: max frequency x± 0.01%;
Analog setting: max frequency x± 0.2%
||Analog setting: 0.1% of max frequency;
Digital setting: 0.01Hz
||Automatic torque boost, manual torque boost 0.1%~30.0%
|Interior PID controller
||Be convenient to make closed-loop system
|Automatic energy save running
||Optimize V/F curve automatically based on the load to realize power save running
|Automatic voltage regulation (AVR)
||Can keep constant output voltage when power source voltage varies.
|Automatic current limiting
||Limit running current automatically to avoid frequent over-current which will cause trip
||–10℃~ +40℃; VFD will be derated if ambient temperature exceed 40℃; each rise 1℃, the derate will be 5%
||5%-95%, without condensation
||≤1000m; VFD will be derated if above 1000m
|Impingement and oscillation
||Normal running:<5.9m/s2 (0.6g); Transportation:<15m/s2 (1.5g)
||–20℃~ +60℃; no dust, no corrosive gas, no direct sunlight
Tips: How to run 3-phase 380V motor on 220V power supply?
When the variable frequency drive turns the three-phase motor on the occasion with only 220V household power supply, it has the features of slow starting and small starting impact on the household circuit. Generally, there are two main types of VFDs that drive a three-phase motor with 220 volt household voltage.
The first type is a three-phase 220V input and 220V output VFD. When this type of VFD drives a three-phase 380V motor, it generally uses a 380V star connection for a relatively low-power motor. When using a three-phase 220V output VFD , change the connection of the motor to a delta connection. The motor can be driven normally.
The second type is the VFD whose input is 220V and output is three-phase 380V, which is suitable for slightly larger three-phase motors. The motor itself is a 380V delta connection, so the connection can no longer be modified. Therefore, the motor can no longer use the modified connection to reduce the voltage, and can only use the VFD with a three-phase 380V output. When using this kind of variable frequency drive, the problem of on-site power supply capacity is mainly considered, because the motor power is larger, the input current should also be larger. The connection method is very simple, and the motor does not require special connection changes.