PLC controlled relay automatic test device

Abstract

The invention discloses a PLC controlled relay automatic test device. The PLC controlled relay automatic test device comprises a device body and a test box; an ampere meter is arranged on one side ofthe surface of the front end above the device body; a display screen is arranged on one side adjacent to the ampere meter; and a voltmeter is arranged on one side adjacent to the display screen and positioned on the other side of the device body. The relay automatic test device is symmetrically provided with the ampere meter, the display screen, a relay connecting base, the voltmeter and a relay jack, facilitates the operation on the relay on the surface of the relay connecting base by staff on the two sides, effectively improves the test speed of the relay, improves the working efficiency andis suitable for assembly line work; the ampere meter, the display screen and the voltmeter are arranged on the surfaces of the two sides above the device body slantways, so that the PLC controlled relay automatic test device is convenient for testers to observe; and a buzzer alarm is combined and can timely remind the testers that unqualified products occur.

Description

technical field [0001] The invention relates to the technical field of automatic testing, in particular to a relay automatic testing device controlled by PLC. Background technique [0002] The relay is an electric control device, which is an electrical appliance that causes the controlled quantity to undergo a predetermined step change in the electrical output circuit when the change of the input quantity (excitation quantity) meets the specified requirements. It has an interactive relationship between the control system (also known as the input loop) and the controlled system (also known as the output loop). Usually used in automatic control circuits, it is actually an "automatic switch" that uses a small current to control the operation of a large current. Therefore, it plays the role of automatic adjustment, safety protection, and conversion circuit in the circuit. There are three basic forms of relay contacts. The two contacts of the moving type (normally open) (H type...

AI Technical Summary

Problems solved by technology

[0003] The relay automatic test device controlled by PLC is the test device of the relay. The traditional relay test device is of poor quality, the test function is single, and the operation is inconvenient.

At the same time, there are some deficiencies in the use process, which is not suitable for factory assembly line operation, which makes the efficiency of relay testing low. Secondly, the existing test device has poor heat dissipation effect and cannot achieve long-term stable work.

Images