METHOD FOR CONTROLLING PBR TYPE ACTUATOR

摘要

PURPOSE: A control method for a PBR type actuator is provided to prevent the damage to a HVAC(Heating Ventilation Air Conditioning) through the efficient end control of the actuator. CONSTITUTION: It is decided that the PBR value of an actuator reaches an end region(S12) after reading the PBR value of the actuator(S11). If the PBR value is within the end region, the difference of the current PBR value of the previous PBR value is calculated in each sampling time(S13). If the difference value is lower than a standard value, a timer runs(S16). If the difference value is kept to be lower than the standard valve until the timer stops, the operation of actuator is completed(S18).