P24x's jam-spin protection consists of three functions: startup timeout detection, jam-spin detection during startup; Jam spin detection. The three-part functionality can be enabled or turned off separately.
The criteria for motor starting conditions are optional: 52a, starting current or 52a + l.
The locked rotation detection during the motor starting process is used when the starting time is greater than the safe locked rotation time. At this time, it needs to cooperate with the optical input switch of the speed detection switch
Rationing Speed Input(DDB 104)。 In addition, the internal logic of this function is also related to the closing signal of the circuit breaker, and 52a needs to be allocated. The action logic of this component is: when the current exceeds the block current and the speed switch input 0, the protection will act after the block protection delay time.
