Frequency Inverter mn series 220v 3.7kw high proformance

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3000 kg/month

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Product Description:

SVF-M mini vector variable frequency drive for water pump


Technical Specification

Control Characteristics

Control Mode

SPWM (Sinusoidal Pulse Width Modulation) control (V/F sensorless vector control)

Freq. Setting Resolution


Output Freq. Resolution


Torque Characteristics

Including the auto-torque, auto-slip compensation, starting torque can be 150% at 5.0Hz

Overload Endurance

150% of rated current for 1 minute

Skip Frequency

Three zones, settings range 0.1~400Hz

Acc/Dec Time

0.1~600s (Independent settings)

V/F Curve

Arbitrary V/F curve setting

Stall Prevention Threshold Frequency Setting

20~200%, Setting of Rated Current

DC Injection Braking

Operation frequency 0.01~60Hz, output 0~100% rated current, start time 0~5s, stop time 0~25s

Braking Torque

Approx. 20% (up to 125% possible with option brake resistor or brake unit externally mounted)

Operating Characteristics

Frequency Setting

External Signal

Potentiometer 5kΩ/0.5W 0~+10VDC, 4~20mA, interface RS485; Multi-function Inputs (7 steps, Jog, Up/Down)

Operation Setting Signal


Set by RUN, STOP

External Signal

S0~S5 can be combined to offer various modes of operation, RS485 serial interface (MODBUS)

Multi-function input signal

Multi-step selection 0 to 7, Acc/Dec inhibit, two Acc/Dec switches, External Counter, Jog, PLC operation, External Base Block, auxiliary motor protection, auxiliary motor control is invalid, drive reset, UP/DOWN key settings

Multi-function output signal

AC drive operating, frequency attained, zero speed, PLC operation, counter attained, over torque, base block, operation mode, fault indication, drive is ready, overheat alarm, emergency stop

Analog output signal

Indicate output frequency, current, voltage, frequency command, speed, power factor output signal

Alarm Output Contact

Drive is fault, the contact will be ON

(One form C contact or 3 open collector outputs)

Operation Functions

AVR, over-voltage, over-current stall prevention, 3 fault records, reverse inhibition, momentary power loss restart, DC injection braking, auto torque compensation, slip compensation, S-curve, auto tuning, adjustable carrier frequency, frequency limits, parameters reset, vector control, PID feedback control, external counter, PLC, MODBUS communication, abnormal reset, abnormal restart, digital frequency output, sleep/revival function, 1st/2nd frequency source selections

Protection Functions

Over voltage, over current, under voltage, external fault, overload, contact protection, overheating, electronic thermal, ground fault

Display Keypads

6-key, 4-digit, 7-segment LED, 4 status LED, master frequency, output frequency, output current, custom units, parameter values for setup, review and faults, RUN, STOP, RESET, FWD/REV

Built-in brake chopper

Built-in for all models

Environment Condition

Protection threshold


Pollution Degree


Installation location

Altitude 1000m or lower, keep from corrosive gasses, liquid and dust

Ambient temperature

-10°C~50°C non-condensing and not frozen (-10°C~40°C for above 5.5KW)

Storage/Transportation temperature


Ambient humidity

Below 90%RH (non-condensing)


9.80665m2(1G) less than 20Hz; 5.88m/s2(0.6G) at 20 to 50Hz



Technical Parameter



VFD Capacity

Input Voltage (V)

Power Capacity (KVA)

Input Current (A)

Output Current (A)

Adapter Motor(KW)


3 Phase 230V






 Model Size


VFD Model






Installation Aperture  

Weight (Kg)













Company Introduction                         




Shandong Chinsc Electric Technology Co., Ltd. is a manufacturer of professional inverters integrating research and development, production and sales. With advanced technologies, excellent quality, scientific management and perfect services, we are building a first-class inverter manufacturer gradually.


Currently, our company has introduced CHINSC inverter models such as SVF3000 series, SVF-M series, SVF-EV series, SVF-G7 Series 0.4 ~ 630KW, to the markets. With excellent product quality, excellent technology development capabilities and comprehensive after-sales services, CHINSC inverters have won praise among agents and customers across the country.


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