The motor dual insurance starter circuit diagram

Published:2011/5/21 0:58:00 Author:Lucas | Keyword: dual , insurance starter , motor | From:SeekIC

The motor dual insurance starter circuit is composed of the Road 1 fuse FU1, Road 2 fuse FU2, stop button R1, start button S2, AC contactors KM1, KM2, relay K, capacitors C1 ~ C3, diodes VD1, VD2, resistor R, voltage regulator diode VS, potentiometer RP and time-based integrated circuit IC, the circuit is shown as the chart. After people press the start button S2, KM2 pulls in and its normally open contacts KM2-i and KM2 ˉ 2 are connected, the motor M operates. At the same time, the AC voltage across L2, L3 is bucked by C1, stabilized by VS, filtered by VD1 and rectified by C2 to provide the +12 V power supply for IC. R uses 1W metal film resistor. RP selects small organic solid potentiometer or variable resistor. IC uses NE555 base integrated circuit.



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