Summary of the invention
The invention provides a kind of multichannel loading time-program(me) control device, with low cost, simple to operate.
The technical solution used in the present invention is: multichannel loading time-program(me) control device, by A.C. contactor, auxiliary reclay, the time relay, often open button QD, normally closed button TZ and insurance RT1, RT2 constitute; First A.C. contactor is by coil J1, main contacts J1.1 constitutes, second A.C. contactor is by coil J2, main contacts J2.1 constitutes, the 3rd A.C. contactor is by coil J3, main contacts J3.1 constitutes, very first time relay is by coil SJ1, normally opened contact SJ1.1 forms, second time relay is by coil SJ2, normally closed contact SJ2.1 forms, the 3rd time relay is by coil SJ3, normally opened contact SJ3.1 forms, the 4th time relay is by coil SJ4, normally closed contact SJ4.1 forms, the 5th time relay is by coil SJ5, normally closed contact SJ5.1 forms, and auxiliary reclay is by coil J0, normally opened contact J0.1, normally opened contact J0.2 forms; It is characterized in that: insurance RT1, often open button QD, normally closed button TZ, normally closed contact SJ5.1, coil J0, insurance RT2 series connection back is connected with connection terminal L, N; Main contacts J1.1, main contacts J2.1, main contacts J3.1 one end are connected with connection terminal A, B, C respectively, and the other end all is connected with insurance RT1; Normally opened contact J0.2 two ends are connected in parallel on and often open button QD two ends; Connect with normally opened contact J0.1 again with coil SJ1, coil SJ2 parallel connection after coil J1 connects with normally closed contact SJ2.1, be connected in parallel on the series circuit two ends that normally closed contact SJ5.1 and coil J0 form; Connect with normally opened contact SJ1.1 again with coil SJ3, coil SJ4 parallel connection after coil J2 connects with normally closed contact SJ4.1, be connected in parallel on the series circuit two ends that normally closed contact SJ5.1 and coil J0 form; After connecting with normally opened contact SJ3.1 again, coil SJ5 and coil J3 parallel connection be connected in parallel on the series circuit two ends that normally closed contact SJ5.1 and coil J0 form.
The invention has the beneficial effects as follows: a kind of multichannel loading time-program(me) control device is provided, this installation cost is cheap, simple to operate, but each load startup of regulated at will, stand-by time, can promptly stop all load runnings at any time, be particularly suitable for medium and small sized enterprises' load and be controlled in the circuit on 3-10 road and use.
Embodiment
As shown in Figure 1, multichannel loading time-program(me) control device comprises A.C. contactor, auxiliary reclay, the time relay, often opens button QD, normally closed button TZ and insurance RT1, RT2; First A.C. contactor is by coil J1, main contacts J1.1 constitutes, second A.C. contactor is by coil J2, main contacts J2.1 constitutes, the 3rd A.C. contactor is by coil J3, main contacts J3.1 constitutes, very first time relay is by coil SJ1, normally opened contact SJ1.1 forms, second time relay is by coil SJ2, normally closed contact SJ2.1 forms, the 3rd time relay is by coil SJ3, normally opened contact SJ3.1 forms, the 4th time relay is by coil SJ4, normally closed contact SJ4.1 forms, the 5th time relay is by coil SJ5, normally closed contact SJ5.1 forms, and auxiliary reclay is by coil J0, normally opened contact J0.1, normally opened contact J0.2 forms; It is characterized in that: insurance RT1, often open button QD, normally closed button TZ, normally closed contact SJ5.1, coil J0, insurance RT2 series connection back is connected with connection terminal L, N; Main contacts J1.1, main contacts J2.1, main contacts J3.1 one end are connected with connection terminal A, B, C respectively, and the other end all is connected with insurance RT1; Normally opened contact J0.2 two ends are connected in parallel on and often open button QD two ends; Connect with normally opened contact J0.1 again with coil SJ1, coil SJ2 parallel connection after coil J1 connects with normally closed contact SJ2.1, be connected in parallel on the series circuit two ends that normally closed contact SJ5.1 and coil J0 form; Connect with normally opened contact SJ1.1 again with coil SJ3, coil SJ4 parallel connection after coil J2 connects with normally closed contact SJ4.1, be connected in parallel on the series circuit two ends that normally closed contact SJ5.1 and coil J0 form; After connecting with normally opened contact SJ3.1 again, coil SJ5 and coil J3 parallel connection be connected in parallel on the series circuit two ends that normally closed contact SJ5.1 and coil J0 form.
The application circuit of multichannel loading time-program(me) control device of the present invention as shown in Figure 2, the live wire of power supply is connected with the connection terminal L of multichannel loading time-program(me) control device, the end of three tunnel load R1, R2, R3 is connected with connection terminal A, B, the C of multichannel loading time-program(me) control device respectively, the other end all is connected with zero-power line, and the connection terminal N of multichannel loading time-program(me) control device is connected with zero-power line.
The course of work of multichannel loading time-program(me) control device is as follows: when pressing start button QD, power supply enters through L, pass through RT1, QD, TZ, SJ5.1, J0, RT2 is to N, form the loop, coil J0 work, make J0.1, J0.2 connects simultaneously, the latching circuit that is made of J0.2 makes QD button release back coil J0 keep work, after J0.1 connects simultaneously, coil J1 work, the load R1 work that is connected with connection terminal A, time relay coil SJ2 also energising work picks up counting, behind setting-up time, normally closed contact SJ2.1 ends, coil J1 quits work, and load R1 quits work, and time relay coil SJ1 also energising work picks up counting, behind setting-up time, normally opened contact SJ1.1 conducting, coil J2 work, main contacts J2.1 conducting, the load R2 work that is connected with it, time relay coil SJ4 also energising work picks up counting, and behind setting-up time, normally closed contact SJ4.1 ends, coil J2 quits work, load R2 quits work, simultaneously, and the time relay coil SJ3 work of switching on, behind setting-up time, normally opened contact SJ3.1 closure, the coil J3 work of switching on, main contacts J3.1 conducting, the load R3 work that is connected with it, simultaneously, the time relay coil SJ5 work of switching on is behind setting-up time, normally closed contact SJ5.1 disconnects, coil J0 dead electricity quits work, and control device is quit work, and all loads quit work.Press stop button TZ at any time, all loads quit work.
In sum, load R1 is controlled by start button AN start-up time, stand-by time is set by second time relay, load R2 is set by the very first time relay start-up time, stand-by time is set by the 4th time relay, and load R3 is set by the 3rd time relay start-up time, and stand-by time is set by the 5th time relay, load R3 stops the while controller and resets, and is ready to next cycle of operation operation.
Multichannel loading time-program(me) control device of the present invention can increase the time relay and A.C. contactor as required, and to increase the quantity of Be Controlled load, principle of work is identical with above-mentioned three road loaded work piece principles.
Multichannel loading time-program(me) control device of the present invention can increase to three groups with each A.C. contactor main contacts as required, can control the three-phase alternating current load.