Specifications - Mitsubishi Electric 700 Series Installation Manualline

2 SPECIFICATIONS

2.1 Inverter rating
Model FR-A770- K-79
Applicable motor
Output
Power supply
Power supply voltage for control circuit
Protective structure (JEM 1030)
Cooling system
Approx.mass [kg]
Surrounding air temperature
*1
The % value of the overload current rating indicated is the ratio of the overload current to the inverter's rated output current. For repeated duty,
allow time for the inverter and motor to return to or below the temperatures under 100% load.
*2
The maximum output voltage dose not exceed the power supply voltage. The maximum output voltage can be changed within the setting
range. However, the pulse voltage value of the inverter output side voltage remains unchanged at about that of the power supply.
*3
The power supply capacity varies with the value of the power supply side inverter impedance (including those of the input reactor and cables).
*4
The applicable motor capacity indicated assumes that the output voltage is 660 to 690V.
*5
When connecting the control circuit separately from the main circuit power supply.
*6
Set Pr.570 = "102" for Vector control or Real sensorless vector control.
Pr.570 = "2"
(Initial value)
*4
Capacity [kW]
Pr.570 = "102"
Pr.570 = "2"
(Initial value)
Rated current [A]
Pr.570 = "102"
*1
Overload current rating
*2
Rated voltage
Output frequency range
PWM carrier frequency
Rated input AC voltage/frequency
Permissible AC voltage fluctuation
Permissible frequency fluctuation
*3
Power supply capacity [kVA]
*5
Pr.570 = "2"
(Initial value)
Pr.570 = "102"
355
355
*6
315
401
*6
344
150% 60s (inverse-time characteristics)
Three-phase 600 to 690V
0.2 to 400Hz
2kHz
Three-phase 600 to 690V 50/60Hz
±10%
±5%
463
AC 380 to 480V 50/60Hz
Open type (IP00)
Forced air cooling
380
–10°C to +50°C (non-freezing)
*6
–10°C to +40°C (non-freezing)
560
560
500
611
545
730
3