ABB ACS880 - Page 365

Def / Type
FbEq 16b / 32b
DescriptionName / Range /
Selection
No.
1Overvoltage control enabled.Enable
Enable / uint16Enables the undervoltage control of the intermediate
DC link.
If the DC voltage drops due to input power cut off, the
undervoltage controller will automatically decrease the
motor torque in order to keep the voltage above the
lower limit. By decreasing the motor torque, the inertia
of the load will cause regeneration back to the drive,
keeping the DC link charged and preventing an
undervoltage trip until the motor coasts to a stop. This
will act as a power-loss ride-through functionality in
systems with high inertia, such as a centrifuge or a fan.
Undervoltage
control
30.31
0Undervoltage control disabled.Disable
1Undervoltage control enabled.Enable
Enable / uint16Enables/disables temperature-based output current
limitation.
The limitation should only be disabled if required by
the application.
Thermal current
limitation
30.35
0Thermal current limitation disabled.Disable
1Thermal current limitation enabled.Enable
Parameters 365