Method for resetting life diagnosis alarm of a contact of a contactor

A method for resetting life diagnosis alarm of a contact of a contactor, including the following steps:

• Step J:
• under the condition that the contact of the contactor is disconnected, providing the reset signal by changing poisition of a second reset switch on a remote diagnosis indication and operation module connected with the contactor;
• Step A:
• detecting a reset signal by a microcontrol unit;
• Step O:
• under the condition that the microcontrol unit detects the reset signal, the microcontrol unit checks whether the step A occurs when the contactor undergoes re-electrification;
• Step B:
• in the step O, if it is checked that the step A occurs when the contactor undergoes re-electrification, the microcontrol unit checks the state of the diagnosis alarm;
• and when the diagnosis alarm is in an active state, the microcontrol unit:
• Step C:
• controlling the indicator to give a first indication signal for confirming a reset operation of the diagnosis alarm;
• Step D:
• resetting the historical data of life diagnosis;
• Step E:
• controlling the opening and closing of the contact of the contactor through an actuator.