Activate fast power-off detection

  • Menu: 4.6.9-1.3-1
  • Index: 8351.4

Description

Specifies whether fast power off detection is activated.

Fast power-off detection enables the energy that is still present in the drive to be used for a guided stop of the drive in the event of a power failure. For this purpose, the DC link voltage is compared with a limit value (parameter DC link level for fast power-off detection). If the limit value is undershot, the response defined in the Response to fast power-off detection parameter is performed.

As soon as the response has been performed and the DC link voltage has been re-established, the drive automatically starts moving again if the enable is still issued.

The following settings are possible:

Setting

Meaning

0 (no)

Fast power-off detection is not activated.

If the power fails, the drive is not stopped in a guided manner. If a brake is installed, it is applied or the DynaStop® function is activated.

1 (yes)

Fast power-off detection is activated.

DefaultSetting

0 (no)