New frequency drive manufacturers Supply for coal mining equipment

Application Scope

The plc hmi developed by Coolmay is widely used in various fields.Coolmay always gives priority to customers and services. With a great focus on customers, we strive to meet their needs and provide optimal solutions.

Product Details

Coolmay's plc controller is exquisite in details.Closely following the market trend, Coolmay uses advanced production equipment and manufacturing technology to produce plc controller. The product receives favors from the majority of customers for the high quality and favorable price.

Company Advantages
1. The materials of Coolmay are selected carefully by the quality control department. The materials are guaranteed phthalates free and thick and durable enough for inflatable uses.
2. The product has obtained international quality certificates and meets the quality standard of many countries and regions.
3. Shenzhen Coolmay Technology Co., Ltd. has a series of professional and complete frequency drive manufacturers product lines.

Coolmay Variable Frequency Inverter

New frequency drive manufacturers Supply for coal mining equipment-1

New frequency drive manufacturers Supply for coal mining equipment-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. has gained world-wide reputation for its top quality frequency drive manufacturers .
2. Modern technology has been constantly introduced into the production of vfd drive 1 phase to 3 phase .
3. Coolmay is confident to provide you the most comprehensive services and products of high quality. Check it! Shenzhen Coolmay Technology Co., Ltd. is committed to becoming a comprehensive vfd frequency provider with global influence. Check it!

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Every Coolmay is professionally designed by our experienced design team. Its shape can be customized according to needs

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When designing Coolmay , the design team invests plenty of time in market research and designs a product that is more superior than others. Its color temperature can be varied according to needs

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Premium raw materials: Coolmay is made of high quality raw materials. They are supplied by our reliable partners who have signed contracts and established cooperation relationship with us for over years. With a strong light penetration ability, this product guarantees a safe drive

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Coolmay shows the outstanding performance, after years of improvement in the production process. The production process is managed in an efficient manner and therefore this product is produced at a quick rate.

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Excellent craftsmanship: Coolmay is crafted with excellent craftsmanship which is a result of talents and skills. Its superior craftsmanship makes it high quality. The product does not cause radio interference

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The product is very durable. Made of hard materials, it is less likely to be affected or destroyed by any surrounding element. Thanks to built-in its heat dissipation device, the product features high conversion efficiency

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