Mitsubishi FR-F740-400K-CHT 380-480V 400KW AC Inverters

Model: FR-F740-400K


Application of Inverter

Mitsubishi FR-F740-400K

Fans, Pumps, HVAC
Power supply 3P, 380 to 480Vac 50/60 Hz
Rated capacity 400 kW
Rated current 770 A
Output frequency range 0.5 to 400 Hz
Starting Torque 120% (3Hz) when set to simple magnetic flux vector control and slip compensation
Overload current rating 120% 60s, 150% 3s (inverse time characteristics)
Control Method V/f Control, V/f Control with PG, Open Loop Vector Control, Closed Loop Vector Control, Open Loop Vector
Control for PM, Advanced Open Loop Vector Control for PM, Closed Loop Vector Control for PM
Braking unit
Input Multi-speed selection, remote setting, second function selection, terminal 4 input selection, JOG operation selection, PID control valid terminal, external thermal input, PU-External operation switchover, V/F switchover, output stop, start self-holding selection, forward rotation, reverse rotation command, inverter reset, PU-NET operation switchover, External-NET operation switchover, command source switchover, inverter operation enable signal, and PU operation external interlock
Ouput Inverter operation, up-to-frequency, overload alarm, output frequency detection, regenerative brake prealarm, electronic thermal relay function prealarm, inverter operation ready, output current detection, zero current detection, PID lower limit, PID upper limit, PID forward/reverse rotation output, fan alarm∗1, heatsink overheat pre-alarm, deceleration at an instantaneous power failure, PID control activated, PID output interruption, safety monitor output, safety monitor output 2, during retry, life alarm, current average value monitor, remote output, alarm output, fault output, fault output 3, and maintenance timer alarm
Protection Function Overcurrent during acceleration, overcurrent during constant speed, overcurrent during deceleration, overvoltage during acceleration, overvoltage during constant speed, overvoltage during deceleration, inverter protection thermal operation, motor protection thermal operation, heatsink overheat, input phase loss ∗3 ∗4, output side earth (ground) fault overcurrent at start∗3, output phase loss, externalthermal relay operation ∗3, PTC thermistor operation∗3, parameter error, PU disconnection, retry count excess ∗3, CPU fault, brake transistor alarm, inrush resistance overheat, analog input error, stall prevention operation, output current detection value exceeded ∗3, safety circuit fault
Main Control Functions Maximum/minimum frequency setting, frequency jump operation, external thermal relay input selection, automatic restart after instantaneous power failure operation, forward/reverse rotation prevention, remote setting, second function, multi-speed operation, regeneration avoidance, slip compensation, operation mode selection, offline auto tuning function, PID control, computer link operation (RS-485), Optimum excitation control, power failure stop, speed smoothing control, Modbus-RTU
Communication PU connector


Peripheral Devices and Options Parameter unit (8 languages), Enclosure surface operation panel, Parameter unit connection cable, AC reactor, DC reactor, EMC Directive compliant noise filter, EMC compliant EMC filter installation attachment, Radio noise filter, Line noise filter, Brake resistor, High-duty brake resistor, Brake unit, Resistor unit, Discharging resistor, Power regeneration common converter Stand-alone reactor dedicated for the FR-CV, High power factor converter, Manual controller, DC tach. Follower, Three speed selector, Motorized speed setter, Speed detector, Master controller, Soft starter, Deviation detector, Preamplifier, Pilot generator, Deviation sensor, Frequency setting potentiometer, Analog frequency meter, Calibration resistor, FR Configurator SW3(VFD setup software)
Degree of protection IP 00 open -chassis, IP 20 NEMA Type 1 enclosure