Four -wire system direct -current point machine and single phase alternating current goat control circuit

The utility model provides a four -wire system direct -current point machine and single phase alternating current goat control circuit, characterized by: goat control circuit input/output terminal is four, names to D01 to D04 respectively, corresponds in order to X4 with switch control system input/output terminal X1 and is connected, the power that switch control system supplied with is exported from X1, X3 or X2, X3 respectively to correspond D01, D03 or D02, the D03 terminal of supplying with four -wire system control circuit, the identifying information signal1 and the signal2 of the output of switch control system export from X3, X4 respectively to to complying with D03, D04 terminal input four -wire system control circuit, four -wire system control circuit exports identifying information signal1 and signal2 from D01 and D02 terminal. This kind of four -wire system direct -current point machine and single phase alternating current goat control circuit is guaranteeing under the prerequisite of security, and improved circuit avoids the trouble accumulation to the ability of distinguishing of self trouble, and the lowering system results in the risk of harm because of a plurality of troubles.