INVT GD270-5R5-4 frequency converter

The application advantages of INVT GD270 in municipal water supply system

1. Constant pressure water supply ensures residents' water demand
The municipal water supply system requires extremely high stability of water pressure. The INVT GD270 frequency converter can achieve constant pressure water supply through precise PID control, and can maintain stable pipeline pressure regardless of changes in water consumption. It supports multi-stage pressure setting function, which can automatically adjust the water supply pressure according to the water usage pattern in different time periods, reduce pressure when the water consumption is low at night, and further save energy.

2. Multi pump control system achieves efficient water supply
INVT GD270 can control a water supply system consisting of up to 8 water pumps, supporting two modes: circulating variable frequency pump water supply and fixed variable frequency pump water supply. The system can automatically increase or decrease the number of running water pumps according to changes in water consumption, achieving optimal operating efficiency. At the same time, the wheel cycle control function can balance the operating time of each water pump and extend the overall service life of the equipment.

3. Comprehensive ability to handle abnormal situations
INVT GD270 has various abnormal situation handling functions, which can effectively respond to various unexpected situations in the water supply system. The water pipe rupture detection function can detect water pipe rupture problems in a timely manner based on the operating frequency of the frequency converter or the upper limit frequency of the PID output; The liquid level control function can automatically adjust the operating status according to the water level of the pool, preventing the water pump from idling; The water shortage protection function automatically stops all water pump operations when the water level is below the set value.

4. Flexible scalability to meet different needs
INVT GD270 provides rich expansion interfaces and supports various industrial fieldbus communications, such as Profibus DP, Profinet, CANopen, etc., making it easy to connect to urban water supply SCADA systems. By selecting IO expansion cards and relay cards, the number of input and output terminals can be further increased to meet the needs of complex control systems. In addition, the frequency converter also supports remote monitoring and operation, making it easy to achieve unmanned operation.