User Manual of EM730/EM730E Series Inverter
201
options
0: Invalid
1: deceleration
2: deceleration to stop
Tens place: Overvoltage stall
function options
0: Invalid
1: valid
F07.07
Voltage of
overvoltage stall
control
110.0 - 150.0 (380V,
100.0=537V)
%
131.0
(703V)
〇
F07.06=0X:
Invalid
The overvoltage stall is invalid. It is recommended not to set it to 0 in the case of no
external braking unit.
The undervoltage stall is also invalid.
When the value in the ones place is 1 or 2, F07.30 is the reference deceleration time.
F07.06=1X:
Valid overvoltage stall
When the overvoltage stall is valid, the stall control voltage is dependent on F07.07.
The DC bus overvoltage is usually caused by deceleration. Due to the energy feedback
during deceleration, the DC bus voltage will rise.
When the DC bus voltage is greater than the overvoltage threshold and the overvoltage stall
is valid (F07.06=2/3), the deceleration of the inverter will be suspended, the output frequency
will remain unchanged, and the energy feedback will be stopped until the DC bus voltage is
normal. Then the inverter will restart deceleration. The process of overvoltage stall protection in
deceleration is shown in Fig. 7-.
