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Chapter 5 Detailed Function Introductions
161
Output Freq.(Hz)
0
Time(s)
Output Current(%)
0
Time(s)
Acc/Dec 4
Figure. 5-13-4 constant speed Operation
Pd.10 Over-voltage at stall
function selection
Setting range: 0.1 [1]
0: Disabled (The proposed option, when braking resistor is mounted) 1: Enabled
Pd.11 Over-voltage point at
stall
Setting Range: 120.0~150.0% busbar voltage
Notes:
The busbar voltage is approximately equal to the input voltage
×
1.414. For the motor type with the input
voltage of 220V, the default value of Pd.11 is 120% (about 373V); for the motor type with the input voltage
of 380V, the default value of Pd.11 is 140% (about 752V).
The dynamic braking action voltage point is also related to the parameter. For the motor type with the input
voltage of 380V, the dynamic braking action voltage is 52V lower than the overvoltage stalling point (i.e. the
default action point is 700V). For the motor type with the input voltage of 220V, it is 23V lower (i.e. the
default action point is 350V).
During the decelerating operation of frequency inverter, the actual decrease rate of the motor rotating speed
may be lower than that of the output frequency for frequency inverter. In this case, the motor is at the state of
power generation and will feed energy to the frequency inverter, which will cause the DC busbar voltage of
frequency inverter to rise. If corresponding measures are not taken, the overvoltage fault will occur.
If Pd.10=1 is effective, when the DC busbar voltage rises to a certain value (≥Pd.11) during deceleration,
deceleration will be paused and the frequency inverter will keep the output frequency unchanged.
Deceleration will not be started again until the DC busbar voltage is reduced.
When the frequency inverter is at the overvoltage stalling state for over 1min continuously, the Ou
overvoltage alarm will be reported and the motor will stop freely; or by pressing the button STOP/RESET
and then pressing the button STOP/RESET twice (at the interval not less than 2s), the frequency inverter will
report the overvoltage and the motor will stop freely.
Содержание 6000S series
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