Original Emergency Stop Relay Wiring Diagram 5 Wire Start Stop Diagram - Wiring Diagram

Original Emergency Stop Relay Wiring Diagram 5 Wire Start Stop Diagram - Wiring Diagram
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Original emergency stop relay wiring diagram - The nst9 is a two channel emergency stop monitoring relay with typically open protection contacts and time behind schedule commonly open safety contacts, adjustable from zero to six seconds. The relay has 3 led’s of which 2 are dual colour for repute/fault indication. The electricity supply is applied across terminals a1 - a2. Assuming no inner faults are detected, all wiring is correct and the emergency prevent button is deactivated then the electricity supply led will flip inexperienced and the k1 and k2 led’s will illuminate yellow. In this nation the input circumstance is ready and transistor output y13-y14 is engaging in. The relay is activated by using making use of a reset signal at t34 and/or x1, whereby the no safety contacts will close, the nc sign touch will open and the led’s k1 to k3/k4 will illuminate green. The transistor outputs y13- y24 and y13-y34 will conduct. Activating the emergency stop button will deactivate the relay. The no thirteen-14 and 23-24 protection contacts will open, the nc contact will close,led’s k1 and k2 might be extinguished and transistor outputs y13-y14 and y13-y24 will stop to behavior. After a postpone, set by means of potentiometer tf hidden below the frontplate, the no 33-34 and forty three-forty four safety contacts will open, led k3/k4 might be extinguished and transistor output y13-y34 will forestall undertaking. Deactivating the emergency stop button will cause led’s k1 and k2 to light up yellow and transistor output y13-y14 to conduct again assuming no faults were determined. 200ms after the timed contacts have opened and the emergency forestall button has been deactivated the relay can be reset. If the led’s illuminate in a exclusive coloration or extinguish at an incorrect time within the sequence than a fault has been detected - discuss with the led reputation desk. Reset may be achieved manually with or without monitoring and routinely. Corrosion or oxidation can occur in certain environments. In such cases the nst9 ought to be activated and deactivated at ordinary durations to keep ultimate contact feature. Behind schedule coupling the nst9 can be configured with not on time monitored coupling. For machines with an electric motor it can be a first rate benefit to connect the control current earlier than connecting the burden modern-day. In this way extra protection is completed since the controller knows the position of conveyor belts, milling heads, and so forth without the controller going into mistakes. The feature is microprocessor managed and is programmed as proven in fig.2. Time delays are shown in the reset delay time table wherein w = terminal linked to u and - = no connection. The mr-4c / mr-4d / mr-4l / mr-4p line monitoring (wirebreak) relay is a supervisory module which continually monitors the popularity of the sphere wiring by means of tracking the current passing through the supervised loop. Every loop has a quit-of-line resistor (eolr) placed on the quit of the loop. When the wire in any of the 4 channel breaks, the contemporary flowing thru the loop is disrupted and the module detects this as a open-circuit fault and energizes the fault relay(s).?.

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