variable frequency drive,vfd drive

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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!

r******k

Coolmay is developed after years of research from our R&D team. They use quality components to improve the illuminating performance of this product. JOY can customize the specification, package, color and height of the products

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Coolmay is developed for optimal performance. After many simulations, its illuminating parameters are close to the ideal value. Our products are suitable for kids who are from 3 to 7 years old

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In order to improve the luminous efficiency, Coolmay uses high-quality optical lenses. It has been verified that the optical lens is reliable and is not easily cracked or peeled off. Our products feature unique appearance

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The material used in Coolmay has the characteristics of high light transmittance and good flame retardant performance, which is not only effective but also safe to use. Ou products are of high durability and stability

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The manufacturing process of Coolmay is complicated. For example, its semiconductors must undergo a rigorous cleaning process to remove dirt and dust. Our products feature unique appearance

z******k

The product is not prone to electromagnetic influence. It has passed the electromagnetic compatibility(EMC) test and is able to withstand extreme weather conditions such as thunderstrike. Excellent tensile and tear also makes our products outstanding

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Vfd drive wholesale for air compressors Coolmay