CA6140 machine tool controls the improvement of circuit to design

2 make circuit analyse voltage of 110V of second output of control transformer TC2 to regard control as circuit power source. U) control of main shaft electromotor, turn with the key mains switch is locked up right first, add up to mains switch QF to prepare to start again, press coil of KM1 of contactor of starting pushbutton SB2 gets report to suck close, advocate contact closes, advocate electromotor starts, and by auxiliary often open contact to close from the lock. By stop coil of KM1 of pushbutton SB1 contactor to break phone, its advocate contact and auxiliary contact disconnect (restoration) , main shaft electromotor stops turn. 4 one KMi advocate contact closes locomotive Kl assists one one dynamoelectric ItMi to often open defect to disconnect (restoration) the control of cooling electromotor, suck when contactor KM1 close, advocate after electromotor M1 starts, rotary switch SA2 closes, contactor KM2 gets report to suck close, m2 ability starts cooling pump motor. Tool carrier moves quickly the control of electromotor, by SB3 the dot uses control. Press SB2, KM3 coil gets report, KM3 advocate contact is sucked close, m3 starts. Loose SB2KM3 coil breaks phone, KM3 advocate contact restoration, m3 stops turn. The comparator that form can output low potential, control drive circuit makes K2 often opens relay contact disconnects, contactor KM5 does not work, disconnect accumulator and charger advocate the join of loop. Accumulator overvoltage is protected, charger is charging in the process, circuit malfunctions, when monomer accumulator voltage rises to 3V, the comparator that by SF358 another operation amplifier forms outputs high potential, control drive circuit makes relay is sucked close, k2 is released, contactor KM5 is released, circuit overvoltage is protected, cut off automatically charge direct current source, quit the job, and overvoltage indicator light is bright at the same time. Accumulator charges through big electric current of the first phase, monomer voltage rises to 2.

When 4V, go up through what amplifier of another SF358 double operation forms, next comparator make circuit of 555 time base outputs low potential, relay K3 movement, often shut contact to open, contactor KM2 is released, disconnect charger of device of constant current of half capacitance step-down turns automatically into small electric current of the 2nd phase to charge. 2.

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Circuit of switch of 3 switch circuit is main by wave band switch, multilayer the composition such as transfer switch, contactor. Of the its function charger that finish start, initial charge, convention charges to be moved changeover, automatically with the hand changeover and all sorts of norms accumulator changeover. If the control circuit of charger malfunctions, can use a hand to move means to charge normally, charge right now in the process the first, 2 phase changeover needs a hand to move finish. 3, does structure of appearance of charger of charger appearance structure see CZJ? 60/200 energy-saving constant current is automatic charger dispute explosion proof, the structure is simple, use convenient, all sorts of control are pressed twist all install go up in the door, the outfit of parts of an apparatus such as column of all capacitor component, contactor component, control plate component, wiring is inside box. Charger use place must be to not have electric or the explosive dust, environment that did not corrode metal and the gas that destroy insulation or vapor is medium. 4, because this charger uses circuit of capacitance step-down constant current,the function expands, of capacitor choosing must be communication does not have polarity capacitance, charger can charge for accumulator not only on the function use, still can regard factor of power of electrified wire netting as compensation. The daily equipment that use phone shows perceptual load for the most part, power factor is inferior. Output charger end, negative pole uses 1Qmn2 lead weak point is received, again the contactor of main circuit KM5 weak point is received, press starting pushbutton, this machine is compensator of factor of a power, but on the spot undertakes to electrified wire netting power factor is compensated, use all sorts of transfer switch to compensate the size of capacitance convertibly. Charger is being used daily in, if appear,cannot charge normally or charging current short of is needed to beg, the problem may go in advocate loop is short of move, individual capacitor is contacted undesirable or open a way of diode of invalidation, commutate. 5, conclusion this charger basis of acerbity accumulator of high capacity lead charge requirement, set a hand to move, automatic two block changeover, constant current was used when charging automatically two phase are changed automatically charge, because main circuit used device of capacitance step-down constant current, can undertake to electrified wire netting power factor is compensated, had the effect of managing electric energy, this machine volume is minor, weight is light, the operation is convenient, sexual price is compared tall. CNC Milling