Re: Wiring up a CJX2D1810 Contactor & remote start button & E-Stop
Stop and E-stop circuits generally end up with a relay being picked up when activated, this method uses a retaining contact on the relay, across the Start PB for e.g..
The string of contact or other elements such as L.S. etc are in the string and are N/C, so in the event of any one of them opening, releases the relay which in turn is used to terminate the power to any motorized part of the M/C.
Incidentally that Schneider (Telemecanique) contactor has a feature where extra options can be clipped on to the blue armature actuator such as aux contacts, timer etc.
Typical circuits of this nature are shown starting with p4 of the Schnieder book.
The only error in it, is that now, O/L contacts are not to be used on the N side of the Relay coil. As it has been done for some decades, but now. considered a safety hazard.
CNC, Mechatronics Integration and Custom Machine Design
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