CDE300 series speed sensor current vector inverter CDE300 series inverter, using a 32-bit DSP (digital signal processor) hardware platform, complete the speed sensorless vector control, V / F, vector control has better control performance; CDE300 flexible design, containing SVC (no speed sensorless vector control) and V / F control with a speed control of high precision and fast response torque, low-frequency output torque. Technical features:? Advanced vector control algorithm to realize the complete decoupling control of motor, both automatically detects the motor parameters, vector, V / F control mode optional. ? G, P the integration type structure, easy to use. ? Rich combination of frequency source can be switched according to site requirements. ? Online monitoring of various parameters and switching. The? 16 speed control, programmable PLC wobbulate. ? Independently programmable multi-function digital inputs, 2 analog inputs, 1-way high-speed pulse input, 2-way open collector output, 1 relay output. ? Multi-point V / F curve, the user can flexibly set. ? Built-in PID controller, simple closed-loop control of flow, pressure, and other convenience of customers. ? Scalable multi-pump water supply control card, up to control 4 pumps with constant pressure water supply. ? Automatic voltage adjustment and automatic current limiting, to make the system run more stable. ? Automatic tracking speed, to achieve a smooth start. ? Standard RS485 serial interface configuration using the international standard MODBUS-RTU communication protocol. ? Wide voltage range 260V-480V, can be applied in low voltage situations. ? Perfect protection function can be realized overvoltage, undervoltage, input and output phase loss, overheating, overload, external fault, overcurrent, phase short circuit to ground short circuit protection. ? Completely independent duct design to improve anti-dust, cooling fan operation mode is optional. Special current algorithm? Deceleration process, to meet the instantaneous current overload occasions. ? Excellent electromagnetic compatibility to meet the requirements of a variety of occasions. A CDE300-4T011G/15P inverter control and water supply substrate 4 15kW pumps, constant pressure and automatically add, subtract pump control. Plus pump order: when the actual pressure is less than the set pressure, the first # 1 inverter operation to 50Hz, after switching delay time, such as the pressure is still less than the drive start the pump # 2, # 1 switch to power frequency to Such push until the inverter starts the 4th pump. Less pump order variable frequency pump before 4 # (where # 1, # 2, # 3 pump frequency operation) when the actual pressure is greater than the set pressure reducer to 0.0Hz, such as the actual pressure is still greater than the set pressure when the first disconnect # 1 # 4 frequency conversion run to cut the pump (factory 25Hz) pumps, and so on until the last remaining # 4 pump frequency conversion run.