User Manual of A90 Series Inverter motor temperature drops to be far below the protection threshold. 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. 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.
stall is valid (F07.06=2/3), the deceleration of the inverter will be suspended, the output When the DC bus voltage is greater than the overvoltage threshold and the overvoltage 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. 7-23. 183 Function Function code Default Parameter description Unit Attribute code name setting F07.06 Bus voltage control options Ones place: Instantaneous stop/no-stop function options 0: Invalid 1: deceleration 2: deceleration to stop Tens place: Overvoltage stall function options 0:
Invalid 1: valid 10 ○ F07.07 Voltage of overvoltage stall control 110.0 - 150.0 (380V, 100.0=537V) % 131.0 (703V) ○ F07.08 Instantaneous stop/no-stop operating voltage 60.0 to instantaneous stop/no-stop recovery voltage (100.0 = standard bus voltage) 76.0 ○