Frequency control cabinet

Frequency control cabinet is mainly used to adjust the working frequency of the equipment, reduce energy consumption, can start the device smoothly, reduce the direct start of the device generated by the high current damage to the motor at the same time comes with analog input (Speed ​​control or feedback signal ), PID Control, pump switching control (For constant pressure ), Communication function, macro function (For different occasions have different parameter settings ), Multi-speed, etc. Can be widely applied to industrial and agricultural production and construction of various types of water supply, drainage, fire, spray pipe network pressurization and HVAC hot and cold water cycle and other occasions automatic control.

Device Overview

Frequency control cabinet is fully absorbed technical staff at home and abroad Water pumps Control of advanced experience, after years of production and application, and constantly improve the optimization, the design made.

Frequency control cabinet products with overload, short circuit, lack of protection and pump leakage, over-temperature and leakage of electrical and other protection features and complete the state display, and have a single pump and multi-pump control mode, a variety of main pump switch Way and all kinds of starting methods can be widely applied to work agriculture Production and construction of various types of water supply, drainage, fire fighting, spray pipe network pressurization and HVAC hot and cold water cycle and other occasions, automatic control.

Variable frequency control cabinet with excellent quality, beautiful and durable, easy installation, safe and reliable partner of various types of pumps.

typical application :Pressure water supply, air compressor, fan pumps, central air conditioning, port machinery, machine tools, boilers, paper machinery, food machinery and so on.

Control Type fold

1, Level control :The control cabinet with high performance Key Float switch, according to the level of high and low changes, automatic control to the drainage pump open and stop.

2, Pressure control :External contact pressure gauge or pressure controller, according to the pressure changes in the pipe network automatically open pump, pump off, this type is used in a large number of domestic water supply and fire booster system.

3, temperature control :External temperature controller, according to the temperature range set to open pump or pump, used in constant temperature, heat exchange systems need to temperature control of the occasion.

4, time control :Chassis panel with time setting button and display, the user can control the pump according to the timing of the opening and closing for a variety of regular or regular intermittent work of the control.

Characteristics Analysis fold

1, Energy saving

Inverter control motor Compared with the traditional control of the motor, energy conservation is the most practical significance, according to the water injection, oil demand to supply the motor condition is the economic operation, you can save electricity48.8%

2, Lower operating costs

The running cost of a conventional motor consists of three components :Initial procurement costs, maintenance costs and energy costs, of which energy costs account for about the motor operating costs 77%Reduced through energy costs 44.3%, Coupled with the start of the inverter after the impact of the reduction in equipment, maintenance and repair also follow the lower, so the operating costs will be greatly reduced.

3, To improve the pressure control accuracy

The frequency conversion control system has the precise pressure control ability, causes the electrical machinery the pressure output and the system required water injection quantity to match.The frequency conversion control motor output quantity changes along with the electrical machinery rotational speed change.As the frequency conversion control electrical machinery speed precision enhancement, therefore It can make the pipe network to maintain the system pressure changes 3pisg Change the range, that is 0.2 bar Range, effectively improve the quality of the conditions.

4, To extend the life of the motor

Inverter from 0HZ The start-up time of the motor can be adjusted to reduce the impact on the electrical components and mechanical parts of the motor at start-up and to enhance the reliability of the system and prolong the service life of the motor. Current fluctuation, this fluctuation current will affect the power grid and other equipment, the inverter can effectively reduce the peak starting current to a minimum.

5, Low motor noise

According to the working condition of the motor, after the installation of frequency control, the motor running speed is obviously slowed down, thus effectively reducing the noise when the motor is running.

Features fold

1, Frequency conversion control cabinet power switching and protection

Frequency conversion control cabinet is usually designed with circuit breaker components, which connect the line power supply, can help the frequency conversion control cabinet to complete the circuit breaking operation, and the circuit and the inverter short circuit or overload protection. The power is cut off when the motor is being serviced.

2, Variable frequency control cabinet frequency control function

The control panel of the frequency conversion control cabinet is equipped with a potentiometer for frequency control, which can transmit the instruction signal to the motor according to the output frequency of the operator and control the rotation speed of the motor. To ensure that the inverter fails, the motor through the automatic control circuit to switch back to power frequency power.

3, Frequency control cabinet intuitive control

The cabinet of frequency conversion control cabinet is designed with display device and operation panel. It is connected with the electrical components inside the inverter control cabinet. It can display the running status of the frequency conversion control cabinet and control the operation of the inverter device. The controlled equipment is operated in the field.

Frequency control cabinet cabinet, also installed a variety of instruments and indicators, such as voltmeter, ammeter, frequency meter, and power indicator, alarm indicator, run indicator, frequency indicator, etc. Frequency Control Cabinet Of the operation and operation of the state, can be directly reflected in the instrument and indicator light to achieve the working status of the inverter from time to time monitoring.

4, Frequency conversion control cabinet security protection function

Frequency control cabinet will include a variety of inverter, including a variety of electrical components are concentrated in the cabinet, so you can reduce the external environment on the impact of electrical components, reduce the degree of environmental pollution by electrical components, but also reduce the frequency control cabinet operator Of the risk of electric shock, it has a better security effect.