FR200 Series Vector control inverter
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Output current (A)
Current limit
Acceleration
process
Time
Time
Output frequency(Hz)
Constant speed
process
Deceleration
process
Figure 6-20
F11.00=2: Current limit mode 2
Current limit mode 2 is applied to the applications which are sensitive to acceleration/ deceleration
time. In this mode, the motor current is automatically adjusted by regulating the output frequency as
per the PI parameterse set in F11.03 and F11.04.
For load with larger inertia if overcurrent occurs during acceleration, the propotional gain may be
increased. For overcurrent during deceleration, the proportional gain may be decreased. For load with
smaller inertia, the propotional gain may be kept smaller. Integral time can be adjusted for fine tunning
in both cases
F11.05
Overvoltage stall control
Range:0
～
2
Default:1
F11.06
Overvoltage stall voltage
Range:120.0
～
150.0%
Default:130.0%
F11.07
Overvoltage stall mode 2
proportion gain
Range:0.1
～
100.0%
Default:3.0%
F11.08
Overvoltage stall mode 2
integral time
Range:0.000
～
1.000s
Default:0.010s
F11.05=0: Overvoltage Stall Disabled.
F11.05=1: Overvoltage Stall Mode 1
In deceleration process, after DC bus voltage exceeds overvoltage stall voltage (F11.06), inverter
stops deceleration process, and remains at present running frequency. After DC bus voltage
decreases, inverter will decelerate as per previous deceleration time, see Figure 6-20.
DC bus voltage(V)
Overvoltage stall level
Output frequency(Hz)
Acceleration
process
Constant speed
process
Deceleration
process
Time
Time
Figure 6-21
