Energy -saving power's three -phase rolling door machine circuit

The utility model relates to an energy -saving power's three -phase rolling door machine circuit, including main circuit, braking circuit and control circuit, braking circuit is including brake solenoid and single phase rectification bridge, control circuit is including going upward control circuit, down control circuit, triangle -shaped connecting circuit and star connection circuit, the C looks that control circuit includes the zero line, normally opens the 2nd auxiliary contact of normal close, ascending contactor coil, angle joint contactor coil, normal close stop button and the circuit breaker output that go upward button, descending contactor go upward, the 2nd auxiliary contact of normal close, descending contactor coil, the star that the downlink control circuit includes the zero line, normally opened down button, ascending contactor connects the C looks of contactor coil, normal close stop button and circuit breaker output, the triangle -shaped connecting circuit includes the three main contacts of a