Parameter group 71. Standstill current 1/2
With activated standstill current function, the inverter injects a current in the motor at standstill.
- When the ambient temperature of the motor is low, the standstill current prevents the risk of condensation and freezing (in particular of the disk brake). Set the amount of current in such a way that the motor does not overheat. Recommendation: Motor housing should be hand hot.
- With activated standstill current, you can start the motor without premagnetization. Recommendation: Set to "45 – 50%" for hoists.
- A rapid start will only take place if the set standstill current is greater than or equal to the rated magnetizing current.
- In the operating mode VFC & hoist, the rated magnetizing current is always used if P710 standstill current is active.
You can activate the standstill current function by setting P710 = "0". Set the standstill current in % of the rated motor current. The standstill current cannot exceed the current limit (P303).
When the standstill current function is activated, the output stage remains enabled even in the "No enable" status to inject the motor standstill current.
The standstill current is not switched off by pressing the stop/reset key.
The standstill current can only be deactivated via "\CONTROLLER INHIBIT" = "0" or safe stop.
You have to set the function of an input terminal to controller inhibit to activate the standstill current function. Otherwise the output stage will be energized directly.
