Sinee EM500 - F07.06=3: Overvoltage Stall and Undervoltage Stall, Enabled; Overvoltage Stall Protection

EM500 Open-Loop Vector Control Inverter User Manual
232
deceleration, DC bus voltage rises due to energy feedback. When DC bus voltage is
higher than the overvoltage threshold:
If the overvoltage stall is enabled (F07.06=2/3) when the DC bus voltage is higher
than the overvoltage threshold, inverter stops the deceleration and keeps output frequency
unchanged; as a result, the energy feedback stops; until the DC bus voltage backs to
normal, inverter starts deceleration again. During the deceleration, the overvoltage stall
protection process is shown in Figure 7-24.
Figure 7-24 Overvoltage Stall Protection
F07.06=3: Overvoltage Stall and Undervoltage Stall, Enabled
Inverter is protected for both overvoltage stall and undervoltage stall.
No.
Function
Range
Unit
Default
Type
F07.09
Judgment Voltage at
Power Failure Ending
Undervoltage Stall Control
Voltage - 100.0
%
86.0
●
F07.10
Judgment Delay Time
at Power Failure
Ending
0.00 - 100.00
s
5.00
●
If bus voltage is lower than the value set through F07.08 (Undervoltage Stall Control
Voltage), inverter will enter the power failure status. If bus voltage is greater than F07.09
(Judgment Voltage at Power Failure Ending), which lasts for the time set by F07.10
(Judgment Delay Time at Power Failure Ending), then inverter returns to the normal