Program features39SettingsParameters 30.04…30.09.Note: It is also possible to use the motor temperature measurement function. Seesubsection Motor temperature measurement through the standard I/O on page 44and Motor temperature measurement through the analog I/O extension on page 46.Stall ProtectionThe drive protects the motor in a stall situation. It is possible to adjust thesupervision limits (torque, frequency, time) and choose how the drive reacts to amotor stall condition (warning indication / fault indication and stop the drive / noreaction).The torque and current limits, which define the stall limit, must be set according tothe maximum load of the used application.When the application reaches the stall limit and the output frequency of the drive isbelow the stall frequency: Fault is activated after the stall time delay.SettingsParameters 30.10…30.12.Parameters 20.03, 30.13 and 20.14 (Define the stall limit.)Underload ProtectionLoss of motor load may indicate a process malfunction. The drive provides anunderload function to protect the machinery and process in such a serious faultcondition. Supervision limits - underload curve and underload time - can be chosenas well as the action taken by the drive upon the underload condition (warningindication / fault indication and stop the drive / no reaction).SettingsParameters 30.13…30.15.Motor Phase LossThe Phase Loss function monitors the status of the motor cable connection. Thefunction is useful especially during the motor start: the drive prevents the motor fromstarting if it detects a missing motor phase. The Phase Loss function also supervisesthe motor connection status during normal operation.SettingsParameter 30.16.
