Ensave Energy Saving System

• Artistic exterior
• Compact
• Convenient
• Economical

1. Soft start-up without impaction
2. Stabilized speed
3. Reduce vibration of unlocking mode
4. Avoid equipment bump
5. Reduce oil temperature
6. Prolong the long activity of sealed circle

• Automatically follow and control during the whole process
• Powerful protection function, easy and safe to be used
• Reduce noise by above 50%, improve working environment
• Flexible to switch, guarantee normal working
• Easy to be installed
• Keep the original control mode
• No need to adjust any parameter

Economic Type Frequency Inverter

• Keyboard with insertion and extraction function digital touch timing
• Offer six types of input analog signal, such as bipolarity of -10V- +10V
• Display sufficient running situation I, V and Rotate speed.
• Slip compensation make movement more precise
• Use Potentiometer to control speed, easy to operate.
• PID Control built in.
• Modbus RS-485/RS-232 built in.

• 32 bits DSP Micro-processor Frame
• Field Oriented flux vector control
• Auto-tuning motor function
• 150% rated torque is available when low speed
• Speed control range 1:1000 (close-loop control)
• Speed control accuracy ±0.02% (PG control)
• Frequency accuracy ±0.01%
• Output frequency solution is 0.01HZ
• Can be used for speed servo controller which include PG
• Fault auto-diagnosis and corrective actions

• English operation interface (optional)
• PID control
• Energy-saving function, light load/ overload automatic electronic-saving
• Electric power inspects circuit
• High speed and high accuracy

• Use the same core components as B500 series inverter
• Automatic control, according to definite temperature and temperature differences.
• PLC control, high reliability
• Easy and convenient to be used without impact on original control system
• Energy Efficient

As show above, if an inverter is used for flow (air quantity) control, a large volume of electric energy can be saved. During the design of a central air conditioning system, consideration is given to the maximum on-site cooling capacity requirement. Its chilled water pump and cooling water pump are considered according to the maximum operating conditions of a single piece of equipment. In actual application, the chilled water pump and cooling water pump operate in a non-full load state at over 90% of the time. The regulation with valves and automatic valves not only increases the flow control loss of the system, but also causes the operation of the entire air conditioning system at fluctuation state due to staged regulation.

However, if inverters are added to the cooling water pump and chilled water pump, the problem can be solved permanently, and furthermore, automatic control can be implemented, and investment can be returned by the use of inverters for energy saving. In addition, the soft start function and smooth regulation feature of the inverters can stabilize the regulation and operating state of the system, and prolong the service life of the unit and network management system. Therefore, the air conditioning system whose water flow varies with the heat load can perform more efficiently in terms of energy saving.

The use of B500k inverter to regulate the rotation speed of pumps can conveniently regulate the water flow. Through PID regulation, the feedback signal that varies with the load and the inverter form a closed loop control system, so that the rotation speed of the pump can vary with the load to save energy. Normally, the energy-saving rate is over 20%. The energy-saving rate in rebuilding is closely related to the usage by the user. Normally, the energy-saving rate is higher in the spring and autumn (over 40%), while the energy-saving space is limited in the summer due to the greater demand of users for electric power (normally 20%).