Brand | Veichi |
Model Name/Number | Veichi AC300 Series |
Overload Capacity | T3 model: 150% rated current for 1 minute, 180% rated current for 5s, 200% rated current for 0.5s S2 |
Automatic energy saving operation | Under V/F control mode, the output voltage is automatically optimized according to the load to reali |
Acceleration and deceleration curve | Two ways: linear acceleration and deceleration, S curve acceleration and deceleration Four sets of a |
Automatic current limit | Automatically limit the current during operation to prevent frequent over-current fault trips |
Feedback input channel | Keyboard potentiometer, voltage/current terminal AI, communication setting, pulse input PUL |
External output signal | Overvoltage, undervoltage, current limit, overcurrent, overload, electronic thermal relay, overheati |
Output frequency accuracy | +-0.5% of maximum frequency value |
Torque response | Vector control without PG: <20ms; |
Motor control mode | V/F control without PG, vector control without PG |
V/F curve | Four methods: linear torque characteristic curve, self-set V/F curve, reduced torque characteristic |
Frequency resolution | Digital setting: 0.01Hz; Analog setting: maximum frequencyx0.05% |
Speed control range | Vector control without PG, rated load 1:100; |
Frequency accuracy | Digital setting: maximum frequencyx+-0.01%; analog setting: maximum frequencyx+-0.2% |
Voltage and frequency | Single-phase 220V 50/60Hz; Three-phase 380V 50/60Hz; Three-phase 220V 50/60Hz |
Allow fluctuation | Voltage imbalance rate: <3%; Frequency: +-5%; Distortion rate meets IEC61800-2 requirements |
Instantaneous power failure processing | In case of instantaneous power failure, uninterrupted operation is realized through bus voltage cont |
Starting torque | Vector control without PG: 150% rated torque at 0.5Hz; |
Frequency setting channel | Keyboard digital setting, keyboard potentiometer, analog voltage/current terminal AI, communication |
Rated output voltage | Using the power supply voltage compensation function, the rated motor voltage is 100%, which can be |
Automatic voltage adjustment | When the grid voltage fluctuates, it can automatically keep the output voltage constant |
Standard function | PID control, speed tracking and restart after power failure, jump frequency, frequency upper and low |
Closing impulse current | Less than rated current |
Modulation | Optimize space vector PWM modulation |
Torque control | Torque setting calculation, torque mode speed limit |
Run command channel | Operation panel setting, external terminal setting, communication setting |
Input command signal | Start, stop, forward and reverse rotation, jog, multi-speed, free stop, reset, acceleration and dece |
Independent air duct design, fast heat dissipation, the low-temperature rise of the machine, no need to derating in a high-temperature environment.
Through real-time monitoring of the load current during operation, it is automatically limited to not exceed the set overcurrent suppression point, which has prevented the fault trip caused by the current. This function is especially suitable for some loads with large inertia or severe changes.
Overvoltage suppression protectionWhen the bus voltage reaches or exceeds the bus overvoltage suppression point during the operation of the inverter, the inverter will automatically adjust the operating frequency to suppress the excessive bus voltage, to ensure that the inverter does not cause overvoltage protection due to the excessive bus voltage.
Wave-by-wave current limitWhen the output current exceeds the wave-by-wave current limit point, the hardware current limit protection is triggered, which can restrain the rise of current to a certain extent so that the current does not exceed the inverter protection value, and avoid the current alarm and shutdown due to sudden load or abnormal current.
The computer can manage the parameter storage and download of several inverters. The parameter download function can save the parameter setting work when exchanging the inverter. The monitoring software is equipped with various monitoring, parameter settings, motor self-learning, oscilloscope functions, etc. Only need a simple RS485 serial port, you can simply connect to the computer.