FRA540L670KNA

The Mitsubishi FRA540L670KNA is classified as a high-capacity inverter tailored for extensive industrial use. It accommodates a motor capacity of 670 kW when operating under constant torque and 750 kW for variable torque scenarios. This inverter is capable of delivering a power rating of 988 kVA and 1097 kVA, respectively, for constant and variable torque applications. Its ratings are notable, set at 1296 A for constant torque operations and 1440 A for variable torque tasks.

Designed to handle overload conditions, the FRA540L670KNA allows 150% overload for 60 seconds and 200% for half a second in constant torque mode. It supports 120% for 60 seconds and 150% for 0.5 seconds for variable torque applications.

The inverter delivers a three-phase output voltage range of 380 to 480V with an operational frequency of 50/60 Hz, while the input voltage range operates effectively between 323V and 528V AC. It maintains a frequency tolerance of ±5%, ensuring stable performance across variable conditions.

Cooling is achieved through a forced-air system, which is critical for maintaining optimal operating temperatures. The unit's enclosure is IP00/IP20, indicating an open configuration allowing for better heat dissipation.

Temperature operational limits range from -10°C to 50°C for constant torque applications and from -10°C to 40°C when in variable torque mode. Users can adjust acceleration and deceleration parameters from 0 to 3600 seconds with linear or S-curve profile options.

Notably, the unit exhibits an initial torque capacity of 150% at 0.5 Hz, facilitating the start of heavy loads. It employs a control mechanism through soft or high-frequency PWM with selectable voltage/frequency (V/F) or advanced vector control methodologies.

Weighing approximately 1100 kg (2420 lbs.), the FRA540L670KNA is constructed to endure the rigorous demands of industrial settings, providing reliability and efficiency in various applications.