Reversible magnetic-force starter control method of explosive-proof electric multi-turn actuator

Abstract

The invention, which is suitable for underground coal mine application having an explosive-proof requirement, relates to a reversible magnetic-force starter control method of an explosive-proof electric multi-turn actuator. When a test / work mode selection switch is turned to be a test mode switch, the control method enters a test and set control mode; and when the test / work mode selection switch is turned to be a work mode switch, the control method enters a work control mode. The control method has advantages of high reliability, good anti-interference performance, and complete functions. The key plays different roles in different modes; and the method can be performance simple and conveniently. The near control / remote control and instantaneous action / self-holding operation selection is set in parameters; and if the selection is changed, no wiring change is needed. Moreover, whether a contactor is absorbed is determined and the protection function is realized.

Description

technical field [0001] The invention relates to a control method of a flameproof reversible magnetic starter, in particular to a control method of a reversible magnetic starter of a flameproof electric multi-turn actuator. Background technique [0002] With the improvement of the active level of mine mining, manual multi-turn actuators can no longer meet the requirements of coal mine automation. Whether it is the construction of new mines or the transformation of old mines, large and medium-sized manual multi-turn actuators are gradually being replaced by electric multi-turn actuators. Rotary actuator instead. [0003] The drive of the electric multi-turn actuator is electric drive, and the magnetic starter realizes various functions such as opening, closing, stopping, local / remote control of the multi-turn actuator, and performs stroke, torque, ground leakage lock, etc. of the multi-turn actuator. Overload, short circuit, phase failure, undervoltage and other protections. ...

AI Technical Summary

Problems solved by technology

[0008] 2. There is no conversion judgment condition between "test mode" and "working mode"

[0011] 4. Lack of "overload test" program, see the attached Figure 12 , attached Figure 24 And attached Figure 28

[0012] 5. In the "test mode", there is no "phase failure test" and "contactor contact pull-in test" programs shown in the program design flow chart, please refer to the attached Figure 12

[0014] 7. There is no indication of the operating conditions, loops and return methods between each program, and there is no more detailed program running process

[0015] Due to the above problems, the programming flow chart of the relevant patent cannot run correctly, and cannot correctly control the reversible magnetic starter of the electric drive multi-turn actuator

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