Detection test device and method for non-manipulated reversal protection function of escalator
A technology of escalator and protection function, which is applied in the field of non-operated reverse protection function detection, inspection and test equipment, can solve the problems of weight, large volume, inconvenient application and popularization, inconvenient carrying, etc., and achieves small size, convenient carrying and simple structure. Effect
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Embodiment 1
[0040] as attached figure 1 As shown, a detection test device for the non-manipulation reverse protection function of an escalator, which includes a housing and a main circuit and a control circuit arranged in the housing;
[0041] Input terminal interfaces (L1, L2, L3), PE terminal interfaces and output terminal interfaces (U2, V2, W2) are set outside the housing; the input terminal interfaces (L1, L2, L3) are connected to the power supply of the escalator control cabinet The output terminal is used as the input control terminal of the detection test device; the PE terminal interface is used as the ground terminal of the detection test device, and is connected to the ground wire of the power supply in the escalator control cabinet;
[0042] The output terminal interface (U2, V2, W2) is the output control terminal of the detection test device, which is connected to the input terminal of the escalator motor;
[0043] The main circuit includes an isolating switch QS, a first co...
Embodiment 2
[0069] The difference between this embodiment and Embodiment 1 is that the isolating switch QS is also connected in parallel with a manual test main circuit, and the manual test main circuit includes an equivalent motor load circuit, and the equivalent motor load circuit sequentially passes through the first The second contactor C2 break contacts (L41 and T41, L42 and T42, L43 and T43) and the first contactor C1 break contacts (L31 and T31, L32 and T32, L33 and T33) are isolated from the The switch QS is connected in parallel.
[0070] The equivalent motor load circuit is a three-phase equivalent circuit composed of electronic devices with similar parameters to the motor of the escalator or moving walk.
[0071] The moving contact of the changeover switch K1 acts to switch to the first station or the second station; when the changeover switch K1 is at the first station: the detection test is carried out by the method of embodiment 1, which can make the running automatic The e...
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