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Submersible Pump Asynchronous Vector Frequency Inverter High Precision Detection

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Submersible Pump Asynchronous Vector Frequency Inverter High Precision Detection

China Submersible Pump Asynchronous Vector Frequency Inverter High Precision Detection supplier

Large Image :  Submersible Pump Asynchronous Vector Frequency Inverter High Precision Detection

Product Details:

Place of Origin: China
Brand Name: Noker
Certification: CE、SGS、ISO9001
Model Number: NK1000-0370G3

Payment & Shipping Terms:

Minimum Order Quantity: 1 set
Price: To be discussed later
Packaging Details: Carton Packing
Delivery Time: 5-8 work days
Supply Ability: 1000 set per month
Detailed Product Description
Communication: Modbus-RTU Protection: Perfect Protection Function
Reliability: Strict High And Low Temperature Aging Test Vector Control: Vector Control For Various Motor
Non-speed Sensor Vector Control: The Newest Non-speed Sensor Vector Control Starting Torque: High Starting Torque
High Light:

variable frequency controller


frequency inverter drive


vfd variable frequency drive

Air Compressor Asynchronous Vector Frequency Inverter With CE Certification


Three Phase AC380V 37KW Squirrel-Cage Asynchronous Electric Motor Non-speed Sensor Vector Frequency Inverter, as a general current vector frequency Inverter with high performance,dedicated to the induction motor drive.Drivers available for packaging, food, fans, pumps and a variety of automated production equipment.



1. High capacity power module, high precision detection hardware and new control platform

2. Structure optimization, small size, good heat dissipation, industrial protection, simple appearance

3. Fault types and countermeasures are more detailed, and users can also define fault protection actions

4. Different input voltage(220V single phase/220V 3 phase/380V 3 phase/460V 3 phase)

5. The ordinary keyboard supports short distance external installation, and the LCD keyboard is used to realize long distance external quotation through network wire.

6. Rich and flexible I/O accesses and field bus options

7. Suitable for all regions which have different grid and voltage

8. Upgrade I/O(NPN/PNP compatible) can meet more application requirement without controller(PLC) like elevator, textile etc.

9. Programmable DI/DO/AI/AO as well as RS485 Modbus RTU make easy communication with other devices




Item Specifications
Basic functions Over load capability

G type: 150% rated current 60s

P type: 120% rated current 60s

Torque boost Auto torque boost function; Manual torque boost 0.1%--30.0%
V/F curve Linear V/F, Multi-point V/F and square V/F curve(power of 1.2,1.4,1.6,1.8,2)
V/F separation 2 ways: separation and semi-separation
Acc./dec. curve

Straight line or S curve acceleration and deceleration mode,

Four kinds of acceleration and deceleration time.

Acceleration and deceleration time range from 0.0s to 6500s.

DC braking

DC braking frequency: 0.00Hz to maximum frequency;

Braking time: 0.0s to 36s

Brake current :0%---100%
Jog control Jog frequency range: 0.00Hz---50.00Hz
Jog acceleration/deceleration: 0.0s--6500.s
Simple PLC It can realize at maximum of 16 segments speed


Basic functions

Multiple segment speed running Running via the built-in PLC or control terminal
Built-in PID It is easy to realize process-controller closed loop control system
Auto voltage regulation It can keep constant output voltage automatically in the case of change of network voltage
Over-voltage/current stall control It can limit the running voltage/current automatically and prevent frequent over-voltage/current tripping during the running process
Quick current limit Minimize the over-current fault, protect normal operation of the AC drive
Torque limit&control “Excavators”characteristics, automatically limit torque during operation, prevent frequent over-current tripping. Closed loop vector mode can realize the torque control.




Stop non-stop

When instantaneous power off, voltage reduction is compensated through load feedback energy, which could make AC drive keep running in a short period of time.
Rapid current limit To avoid AC drive frequent over-current fault
Timing control Timing control function: set time range:0--6500min


RUNNING Running command source Operation panel; control terminals; Serial communication pot. You can perform switchover between these sources in various ways.
Frequency source There are a total of 10 frequency sources, such as digital setting, analog voltage setting, analog current setting, pulse setting and serial communication port setting. You can perform switchover between these sources in various ways.
Input terminal


5 digital input(X) terminals

2 analog input(AI) terminals, one support 0-10v voltage input or 0-20mA current input terminal

Output terminal


2 digital output (DO) terminal;

2 relay output terminal;

2 analog output (AO) terminal that supports 0 ~ 20mA current output or 0 ~ 10V voltage output.

Display and operation on the operation panel Keyboard potentiometer Equipped with keyboard potentiometer or coding potentiometer
Protection mode Motor short-circuit detection at power-on, input/output phase loss protection, overcurrent protection, overvoltage protection, undervoltage protection , overheat protection and overload protection
Optional parts LCD operation panel, braking unit
Environment Installation location Indoor, free from direct sunlight, dust, corrosive gas, combustible gas, oil smoke, vapour, drip or salt.
Altitude Lower than 1000m
Ambient temperature

-10℃ to +40℃

(de-rated if the ambient temperature is between 40℃ and 50℃)

Humidity Less than 95% RH, without condensing
Vibration Less than 5.9m/s2 (0.6g)
Storage temperature -20℃ to +60℃
IP level IP20
Pollution degree PD2
Power distribution system TN, TT






Rated power Rated voltage Input current
kW V A
NK1000-0007G3 0.75 380 2.5
NK1000-0015G3 1.5 380 3.7
NK1000-0022G3 2.2 380 5.1
NK1000-0030G3 3.0 380 6.0
NK1000-0040G3 4.0 380 8.5
NK1000-0055G3 5.5 380 13.0
NK1000-0075G3 7.5 380 16.0
NK1000-0110G3 11 380 25.0
NK1000-0150G3 15 380 32.0
NK1000-0185G3 18.5 380 38.0
NK1000-0220G3 22 380 45.0
NK1000-0300G3 30 380 60.0
NK1000-0370G3 37 380 75.0
NK1000-0450G3 45 380 90.0
NK1000-0550G3 55 380 110.0
NK1000-0750G3 75 380 150.0
NK1000-0930G3 90 380 170.0
NK1000-1100G3 110 380 210.0
NK1000-1320G3 132 380 250.0
NK1000-1600G3 160 380 300.0
NK1000-1850G3 185 380 340.0
NK1000-2000G3 200 380 380.0
NK1000-2200G3 220 380 415.0
NK1000-2500G3 250 380 470.0
NK1000-2800G3 280 380 520.0
NK1000-3150G3 315 380 600.0
NK1000-3550G3 355 380 650.0
NK1000-4000G3 400 380 725.0


Daily maintenance

Due to the influences of temperature, humidity and dust in the environment and the effect of vibration, the internal components of frequency converter are resulted to aging, which causes the potential occurrence of the failure for frequency converter or the decrease of the service life for frequency converter. Therefore, it is necessary to implement the daily and regular maintenance to the frequency converter.
Daily inspection items:
1) Whether the sound changes abnormally when the motor is running
2) Whether vibration occurs when the motor is running
3) Whether the installation environment for frequency converter changes
4) Whether the cooling fan of frequency converter functions normally
5) Whether the frequency converter is overheated
6) Daily cleaning:
7) Always keep the frequency converter in clean state.
8) Effectively remove the dust on the surface of frequency converter, thus preventing the dust enter into the inside of the frequency converter. Especially for the metal dust
9) Effectively eliminate the oil in the cooling fan of frequency converter.
Daily maintenance
Please make regular inspections to the places which are hard to be inspected during running.
Regular inspection items:
1) Inspect the air channel and clean it regularly
2) Inspect whether the screw is loose
3) Inspect whether the frequency converter suffers from corrosion
4) Inspect whether the terminal block has the arc traces
5) Insulation test for major loop
Remind: when using the megameter (use DC 500V megameter please) to measure the insulation resistance, the major loop line needs to be disconnected with the frequency converter. Do not use the insulation resistance meter to measure the insulation of the control loop. No need to conduct the high voltage test (it is already completed in delivery).

Contact Details
Xi'an Noker Electric Co.,Ltd.

Contact Person: Sales Manager

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