• Shenzhen Coolmay Technology Co., Ltd.
    Juan Guevara
    muy buen trato con el vendedor y muy buena asesoria y el producto está trabajando muy bien ya tiene un año y no he tenido ningún problema
  • Shenzhen Coolmay Technology Co., Ltd.
    Obert Matetakufa
    I'm very happy with the business deal and all the support they are giving . A very good business partner
Contact Person : Joanna
Phone Number : 008613316892240
WhatsApp : +8613316892240

CE Certification 4.0KW Three Phase VFD Drive Automatic Torque Boost

Place of Origin Shenzhen, China
Brand Name COOLMAY
Certification CE
Model Number CM540
Minimum Order Quantity 1 set
Price Negotiable
Packaging Details Carton packaging / Wooden box packaging
Delivery Time 3-8 work days
Payment Terms Western Union, T/T
Supply Ability 100,000 set per month
Product Details
Maximum Frequency Vector Control: 0~600Hz | V/F Control: 0~3200Hz Speed Range 1:200(SVC), 1:1000(FVC)
Speed Stability Accuracy ±0.5%(SVC), ±0.02%(FVC) Torque Control Precision ±5%(SVC)(above 10Hz), ±3%(FVC)
Carrier Frequency 0.8kHz~12kHz Specification Optional
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4.0KW Three Phase VFD


CE Three Phase VFD


4.0KW Three Phase VFD Drive

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Product Description

CE Certification 4.0KW Three Phase VFD Drive Automatic Torque Boost

CM540 VFD three phase variable frequency drive speed range 1:200(SVC) / 1:1000(FVC)


Coolmay VFD can easily drive induction motors with high-performance current vector technology, and meet the work requirements in various environments. It is high reliability, easy to use, convenient maintenance, environmental friendly installation space saving and high design standards in terms of applications.






Dimension (L*W*H)

118*156*185 mm

247*160*176 mm




Basic Function

Maximum frequency

Vector control: 0~600Hz | V/F control: 0~3200Hz

Carrier frequency

0.8kHz~12kHz. The carrier frequency automatically adjusted based on the load features.

Input frequency resolution

Digital setting: 0.01Hz

Analog setting: Maximum frequency ×0.025%

Control mode

Open-loop vector control (SVC), Closed-loop vector control (FVC), VF control.

Startup torque

G type: 0.25Hz/150% (SVC), 0Hz/180%(FVC), P type: 0.5Hz/100%

Speed range

1:200(SVC), 1:1000(FVC)

Speed stability accuracy

±0.5%(SVC), ±0.02%(FVC)

Torque control precision

±5%(SVC)(above 10Hz), ±3%(FVC)

Overload capacity

G type: 150% rated current 60s. 180% rated current 3s.

P type: 120% rated current 60s. 150% rated current 3s.

Torque boost

Automatic torque boost. Manual torque boost 0.1%~30.0%

V/F curve

Five modes: Straight-line, Multi-points, Square V/F, V/F separation, V/F Semi-separation

V/F Separation

Two modes: complete separation, semi-separation

Ramp mode

Straight-line ramp and S-curve ramp.

Four kinds of acceleration/deceleration time with the range of 0.0–6500.0s

DC injection braking

DC braking frequency: 0.00Hz~maximum, braking time: 0.0s~36.0s.

Braking action current value:0.0%~100.0%

Jog control

Jog frequency: 0.00Hz~50.00Hz

Jog acceleration and deceleration tome:0.0s~6500.0s

Simple PLC, multistage speed operation

It implements up to 16 speeds via the simple PLC function or combination of DI terminal states.

Built-in PID

It can keep constant output voltage automatically when the mains voltage changes.

Automatic voltage regulation(AVR)

Automatically maintain a constant output voltage when grid voltage changes.

Over voltage/Over current loss of speed control

Automatic limit of the current and voltage during the operation, prevent frequent over current and over voltage

Rapid current limit

Minimizing over-current fault and protect the normal operation of converter.

Torque limit and control

"Excavator" characteristics, automatic limit of the torque during the operation, to prevent frequent over-current trip. Closed-loop vector mode torque control can be achieved.


CE Certification 4.0KW Three Phase VFD Drive Automatic Torque Boost 0


1. High reliability

Long-life design

Three anti-paint automatic spraying process

Independent duct

Reliable thermal design



2. Easy to use

Instant stop function

Various motor drivers

Support ES Driver MS backstage software

Flexible terminal functions

Built-in adaptive PIK function module


3. High performance

Applied the latest dedicated chips of motor control from Germany INFINEON company.

Applied the international advanced hardware and software technology to perfectly integrate into drive output

Over excitation function, driver output.

Steady speed with high accuracy, wide speed range

Fast current limit function

Unique speed tracking function