variable frequency drive,vfd drive

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Product Details

Coolmay's plc hmi has excellent performances by virtue of the following excellent details.Coolmay has great production capability and excellent technology. We also have comprehensive production and quality inspection equipment. plc hmi has fine workmanship, high quality, reasonable price, good appearance, and great practicality.

Company Advantages
1. Coolmay vfd drive is designed by experts in the industry. It has a relatively scientific design structure, exquisite and tasteful appearance, which proves to be very pragmatic.
2. The product has the advantage of strong compatibility. It can perfectly work with other mechanical systems to bring out the best results.
3. Shenzhen Coolmay Technology Co., Ltd. has precise market positioning and unique concept for variable frequency drive.

Coolmay Variable Frequency Inverter

vfd drive wholesale for air compressors Coolmay-1

vfd drive wholesale for air compressors Coolmay-2

Model	CM520- 0.75/1.5KW	CM540- 0.75/1.5/4.0KW	CM540- 5.5/7.5/11KW
Dimension	86114143	118156185	247160176
*LWHmm*
Weight	0.9kg	2.0kg	3.7kg
Basic Function
Maximum frequency	Vector control: 0.00~500.00Hz
	V/F control: 0.00~500.00Hz
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.
Other models: CM540-15/ 18.5/ 22KW, CM540- 30/ 37KW
CM540-45/ 55/ 75KW, CM540-90/ 110KW
CM540-132/ 160/ 185KW, CM540- 200/ 220/ 250/ 280KW
CM540-315/ 350KW.
The above models are all iron shells. For detailed dimensions, please contact us
Detail info refer to:
Coolmay CM520 VFD user manual Coolmay CM540-Inverter user manual

Company Features
1. Shenzhen Coolmay Technology Co., Ltd. is a famous firm which specializes in variable frequency drive.
2. Since the beginning of its operation, Shenzhen Coolmay Technology Co., Ltd. focuses in supplying high end variable frequency drive manufacturing equipment for itself.
3. For the goal of pioneering variable frequency drive industry, serving customers with best products and service has been Coolmay doing. Call! High quality customer service of Coolmay is highly commented by customers. Call!

u******t

The material is superior, the product is durable, and the design is generous, the appearance is classic, and the workmanship is fine, the details are in place, the finished product is not only good in quality, but also has a high-grade texture.

o******q

Shenzhen Coolmay Technology Co., Ltd.The production strength is strong, the management system is perfect, and the produced are all selected high-quality materials, which are manufactured by advanced technology and fine processing, with excellent workmanship and high quality, which are both beautiful and practical.

r******r

The company has always adhered to fine management for many years, and strictly controls the quality of every important link such as product design, research and development, production, testing, and delivery to ensure that the produced are all qualified products that meet national standards.

s******u

Shenzhen Coolmay Technology Co., Ltd. not only has a unique production process and advanced production equipment, but also carefully selects the raw materials of , which provides a strong guarantee for the quality of .

n******o

The company has been engaged in the production and sales of for many years, and has accumulated rich experience in production and management. The products produced are thick in materials, fine in workmanship, high in quality, beautiful and practical.

w******z

The product features excellent hardness in terms of indentation. (Indentation hardness is the resistance of the material to indentation.) It can resist extrusion caused by high pressures.

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Vfd drive wholesale for air compressors Coolmay