FR500A&FR510A Series Vector Control Inverter
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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 parameters set in F11.03 and F11.04.
For load with larger inertia if overcurrent occurs during acceleration, the proportional gain may be
increased. For overcurrent during deceleration, the proportional gain may be decreased. For load with
smaller inertia, the proportional 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: 2
F11.06
Overvoltage stall voltage
Range: 600
~
800V
Default: 730V
F11.07
Overvoltage stall mode 2
proportion gain
Range:0.1
~
100.0%
Default:50.0%
F11.08
Overvoltage stall mode2
frequency limited
Range: 0.00
~
50.00Hz
Default: 5.00Hz
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.
Figure 6-28
F11.05=2: Overvoltage Stall Mode 2
For large inertia load, mode 2 can be used when there are still overvoltage faults in mode 1.
Mode 2 control bus voltage within the set values by adjusting output frequency.
For larger inertia load , scaling factor(F11.07) of overvoltage stall mode 2 will be larger, otherwise, it
will result in overvoltage fault when without good control. F11.08 function code control use to output
frequency in mode 2.
F11.10
Protection action 1
Range:00000
~
33333
Default:03330
Unit's place: Bus undervoltage
(
Err07)
0: Fault reported and coast to stop
1: Stop according to the stop mode
2: Fault reported but continues to run
3: Fault protection disabled
Ten's place: Power input phase Loss (Err09) (Same as unit's place)
Hundred's place: Power output phase loss (Err10) (Same as unit's place)
Thousand's place: Motor overload (Err11) (Same as unit's place)
Ten thousand's place: Inverter overload (Err11) (Same as unit's place)
Note:
If "Coast to stop" is selected, the AC drive displays Err** and directly stops.