If you're wondering why there are normally open and normally closed contacts in communication contactors, let's first look at what these contacts are used for. Normally open and normally closed contacts are electrical components used to complete self-locking, interlocking or interlocking tasks, and can also be used to control the on/off of other components or signal indicators, and then realize the intention of automatic circuit control and continuous monitoring of operating conditions.
Delixi communication contactor auxiliary contact can be divided into normally open point NO and normally closed point NC, normally open point NO is usually used as the interlocking circuit of the communication contactor itself, in parallel with the start button, the start button pops up to keep the circuit running, when you press the abort button, normally closed electric shock CNC can disconnect the short circuit.
There is also a jog circuit for the contactor, so what is the jog method? The contact closing and contact disconnection of the contactor main circuit occurs in a very short period of time, which is called jogging.
When the contactor is not energized or in a naturally inactive condition, the closed contact is called a normally closed contact and the open contact is called a normally open contact. Auxiliary contacts provide power-on and power-down signals to the control circuit. If a pair of NC contacts are connected with a green indicator light, it means that the power supply of the appliance is turned on, but the appliance has not yet been put into use. A pair of normally open contacts are connected to a red indicator light. When energized, the normally open contacts are closed and the red indicator lights up, indicating that the appliance is running.
Of course, the contacts of the contactor can also be detected by the multimeter. Delixi's communication contactor between the two contacts of the on/off, the circuit can pass through a group of electric shocks is normally closed electric shock, different called normally closed contacts.
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