660V Mittelspannungs Frequenzumrichter

WL-8000-6T-G Medium-voltage Frequency converter, Its specification could be 0.4KW 630KW, 3 phase, 660Vor 1140V. Main Characteristics Adopt HITACHI 32-bit SCM, achieve optimized SPWM Control technology. Advanced function of motor Auto Energy-saving, could make the motor operate under the best energy-saving state, and complete auto operate by together with PID Regulator . Slip Compensation function , make the motor operate steadily. Embedded Auto -Torque -Compensation function, using torque control function to let motor operate under constant torque . Having Fault-Auto-Reset function, could make motor run continuously under the Nonsubstantiality state Double-keyboard display . User friendly interface could adjust various of parameter on-line, and also have parameter-copy function. Small pollution to power grid . Control way: SVPWM control Accuracy of output frequency: ±5% of Maximal frequency value Frequency set resolution: 0.01Hz : key-board 0.2Hz: Potentiometer analog input Voltage/ frequency : When voltage is 50%-100% of rated voltage, basic frequency 50-400Hz(2000Hz) is adjustable. Frequency of PWM carrier frequency: 1.080-16.00Hz Torque hoist: 34 kinds of way , optional Maximal output-power: 120% per minute, 150% moment trip Acceleration/deceleration: 0.1-9999S Rated output voltage: By using power-source voltage compensation function, and at motor rated voltage as 100%, could set within range of 50-100% (but output voltage could not be over input .) Auto voltage regulation: When electric-grid voltage is waving, keep V/F constant. Standard functions: Current limited, Torque hoist, Rotate-speed tracking and power-fail restart, Jumping frequency ,Frequency up-down limited control , Carrier-frequency regulation, Acceleration/deceleration time adjustable,Acceleration/deceleration mode variable , DC braking, Multi-step speed, Programmable operation,Wobbling operation, PID regulation control . Protection functions: Over-voltage, lower-voltage, current limited, over-current, over-load, Electronic thermal relay, over-heat, over-voltage stall, data protection,lower-load warning Frequency set input: Outer terminal V2: 0 10V , 0 5V Outer terminal A2: 4 20mA, 0 20mA, ( Z type is 0-1A) Signal feedback input: Outer terminal VF: 0 10V Outer terminal AF: 4 20mA, 0 20mA Input pointed signal: Forward run, reverse run, inch moving Outer output signal: Relay signal: 3A/250VAC Auxiliary signal output(open collector ) : 24VDC-50mA Cooling way: Forced air cooling Display: Function code , Data, Output frequency, set frequency, output current, input voltage, Motor speed, Forward-reverse run state, Over/lower-voltage, over-current/load/heat, over-voltage stall, Current-limited, data protection broken, active fault state, history fault. Application Range: Oil field electric-pump, Petro-pump, Mine blower, Conveyer