Phase-failure protection control circuit of novel pressure machine

Abstract

The invention relates to a phase-failure protection control circuit of a novel pressure machine, which belongs to the technical field of the pressure machine. The invention aims at providing a phase-failure protection control circuit of a novel pressure machine which can prevent the pressure machine from running to burn the motor under the phase-failure condition and prevent the safety accident caused by the running of the pressure machine under the phase-failure condition. The invention adopts the technical scheme that: a phase-failure protection controller is connected with a power circuit of a main motor, the phase-failure protection controller is connected with a main control circuit of the pressure machine, and once the phase-failure protection controller detects the phase-failure signal of relevant circuit, an execution element is controlled, so the work of the pressure machine can be stopped.

Description

technical field [0001] The invention relates to a control circuit of a press, in particular to a novel phase-break protection control circuit of a press. The utility model belongs to the technical field of press accessories. Background technique [0002] In the forging product press, the main motor is particularly easy to burn out compared with other electromechanical equipment in the case of phase failure. This is mainly determined by the working characteristics of the press. Since the press is working, the instantaneous workload is extremely high. Large, the instantaneous current of the motor is also extremely large, so it is particularly easy to burn the motor in the case of a phase loss. [0003] However, the above-mentioned problems have not attracted the attention of the press manufacturer, so at present, no phase-break protection control circuit is used in the products of the press. Contents of the invention [0004] The object of the present invention is to provi...

AI Technical Summary

Problems solved by technology

[0002] In the forging product press, the main motor is particularly easy to burn out compared with other electromechanical equipment in the case of phase failure. This is mainly determined by the working characteristics of the press. Since the press is working, the instantaneous workload is extremely high. Large, the instantaneous current of the motor is also extremely large, so it is easy to burn the motor in the case of a phase loss

[0003] However, the above-mentioned problems have not attracted the attention of press manufacturers. Therefore, at present, no phase-break protection control circuit is used in press products.

Images