Input

Rated Voltage & Frequency: 380V/220V, 50Hz/60Hz
Allowable Voltage Working Range: Voltage fluctuation range ≤±20%; Voltage unbalance rate ＜3%; Frequency fluctuation tolerance ＜±5%

Output

Output Voltage: 0~380V / 0~220V
Output Frequency Range: 0.10~400.00Hz
Overload Capacity: 150% rated continuous current for 60 seconds; 200% rated instantaneous current for 1 second; 220% rated current instant trigger protection

Main Control Performance & Featured Functions

Control Mode: General V/F control, customized multi-point V/F curve programmable control
PWM Modulation Mode: Space voltage vector PWM modulation, flexible soft PWM modulation technology
Speed Regulation Ratio: 1:40
Starting Torque: 3.0Hz output over 145% rated torque under standard V/F mode; torque response ≤60ms
Frequency Accuracy: Digital setting deviation: ±0.02% of maximum frequency; analog setting deviation: ±0.1% of maximum frequency
Frequency Resolution: Digital setting resolution: 0.01Hz; analog resolution: 0.05% of rated maximum frequency
Torque Boost Mode: Automatic torque dynamic boost / manual fixed torque boost, adjustable range 0.0%~20.0%
V/F Curve Selection: 20 groups optional curves including linear characteristic curve, fan pump square curve, user-defined multi-segment V/F curve
Acceleration & Deceleration Curve: Linear acceleration curve, S-type acceleration curve dual mode; maximum configurable acceleration/deceleration time up to 60 minutes
DC Braking Function: Adjustable braking startup frequency range (0.0Hz to upper frequency limit); braking duration adjustable from 0.0s~30.0s; braking current proportion 0%~150% rated motor current
AVR Automatic Voltage Regulation: Real-time output voltage stabilization under grid voltage fluctuation condition
Slip Compensation Function: Dynamic slip difference compensation for load variation, stabilize motor operating speed
Automatic Current Limiting: Intelligent current restraint during acceleration and stable operation, avoid frequent overcurrent fault tripping
Overvoltage Stall Protection: Active bus voltage limitation in deceleration process, prevent overvoltage shutdown fault
Momentary Power Failure Ride-through: Short voltage dip tolerance, maintain continuous operation without sudden tripping
Over-modulation Control: Over-modulation algorithm above fundamental frequency, promote high-speed motor output torque

Customized Individual Functions

Timer & Counter Module: Built-in independent timing unit and pulse counter, support timing startup/shutdown and external pulse statistical control
Built-in PLC & Multi-speed Operation: Realize multi-step fixed speed switching via internal logic PLC and control terminals
PID Closed-loop Control: Dedicated constant-pressure water supply PID algorithm preset, dual sleep mode for water pump energy-saving operation

Operation Functions

Operation Command Channel: Panel button control, terminal hardwire control, serial communication control three switching modes
Frequency Reference Channel: Digital set value, analog voltage input, analog current input, pulse signal, serial port, multi-speed terminal multi-channel selection
Frequency Combination Superposition: Multiple frequency sources superimpose output to realize compound speed adjustment logic

Operation Panel

Display Mode: Digital LED panel, support display of 24 types of running parameters
Button Permission Lock: Partial function button lockable, prevent field personnel misoperation parameter modification

Protection System

Protection Items: Total 19 built-in protection functions including optional phase loss protection, overcurrent, under-voltage, module overheat, overload, output short-circuit, external fault protection

Ambient Application Conditions

Installation Site: Indoor installation only; prohibit direct sunlight, dusty environment, corrosive gas, flammable medium, oil mist, steam, dripping water and salt mist atmosphere
Altitude Derating Rule: Power derate 10% per 1000 meters elevation when altitude exceeds 1000m
Operating Ambient Temperature: Standard working temperature -10℃~+40℃; power derating mandatory within 40℃~50℃ ambient temperature
Relative Humidity: 5%~95%RH, non-condensing indoor environment
Vibration Resistance Index: Bearing vibration less than 5.9m/s² (0.6g)
Storage Temperature Range: -40℃~+70℃

Structural Specifications

Protection Grade: IP20
Cooling Mode: Forced air cooling, intelligent fan automatic start-stop control