China Super Overload Capacity, Rich and Powerful Combined Functions 37kw Power Inverter VFD, Find details about China Inverter, AC Inverter from Super Overload Capacity, Rich and Powerful Combined Functions 37kw Power Inverter VFD
ems | Specifications | |
Input | Rated voltage, frequency | 380V/220V;50/60Hz |
Permissible range of operating voltage | Fluctuation:<+20%; voltage imbalance rate:<3%; freq fluctuation:<+5% | |
Output | Voltage | 0~380V/0~220V |
Freq | 0.0~630.0Hz | |
Overloading ability | 150% rated current 1min; 200% rated current 1s; 220% rated current, instantaneous trip. | |
Main control performances and featured functions | Control mode | V/F control(simplified magnetic flux control technology)/advanced magnetic flux vector control |
Modulation mode | Flexible PWM technology | |
Speed range | 1:50 | |
Startup torque | At 3.0Hz,>150% rated torque(VF control),torque response time <50mS At 1.5Hz,>180% rated torque(Advanced magnetic flux vector control),torque response time <20mS | |
Freq accuracy | Digital setting: maxi freq ×+0.02%; analog setting maxi freq×+0.1% | |
Freq resolution(step) | Digital setting:0.1 Hz, analog setting: maxi freq × 0.05% | |
Torque boost | Automatically arise torque/ arise torque by hand 0.1%~30.0% | |
V/F curve | 21 modes: linear, 2 squared characteristic curve and V/F curve with multiple dots | |
Speed up/down curve | Linear curve speed up/down: 2 kinds of speed up/down time, longest time: 1 hour | |
DC braking | Startup freq of DC braking:0.00Hz~maxi freq, Braking time:0.0s~30.0s, braking current: 0.0~150.0% rated current of motor | |
Auto voltage regulation(AVR) | When system voltage change, able to keep output voltage constant automatically | |
Compensation of rotation error | Rational setting of compensation for rotation error, can compensate the change of rotation speed due to load, to achieve higher control accuracy of speed | |
Limit the operation current, prevent frequently tripping due to over-current | ||
Control of over-voltage speed loss | Limit the operation voltage, prevent frequently tripping due to over-voltage | |
Magnetic flux braking | To achieve shorter speed-down/braking time through this mode | |
Over-modulation | Utilize over-modulation technology for over the basic freq, to get higher voltage output, increase hi-freq output torque of the motor. | |
No stop at instantaneous | When voltage fall down at short time, it can keep inverter busbar voltage constant, to avoid tripping. |