1、电路电源开关是带有开关锁SA的断路器QS。机床接通电源时需用钥匙开

1、电路电源开关是带有开关锁SA的断路器QS。机床接通电源时需用钥匙开关操作，再合上QS，增加了安全性。需要送电时，先用开关钥匙插入SA开关锁中并右旋，使QS线圈断电，再扳动断路器QS将其合上，此时，机床电源送入主电路380V交流电压，并经控制变压器输出110V控制电路、24V安全照明电路、6V信号灯电压。断电时，若将开关锁SA左旋，则触头SA(2-3)闭合，QS线圈通电，断路器QS断开，机床断电。若出现误操作，QS将在0.1s内再次自动跳闸。
2、打开机床控制配电箱壁龛门，自动切除机床电源的保护。在配电箱壁龛门上装有安全行程开关SQ2，当打开配电盘壁箱门时，安全开关的触头SQ2(2-3)闭合，将使断路器QS线圈通电，断路器QS自动跳闸，断开机床电源，以确保人身安全。
3、机床床头皮带罩处设有安全开关SQ1，当打开皮带罩时，安全开关触头SQ1（1—4）断开，将接触器KM1、KM2、KM3线圈电路切断，电动机将全部停止旋转，以确保了人身安全。
4、为满足打开机床配电箱壁龛门进行带电检修的需要，可将SQ2安全开关传动杆拉出，使触头SQ2（2-3）断开，此时QS线圈断电，QS开关仍可合上。当检修完毕，关上壁龛门后，将SQ2开关传动杆复位，SQ2保护作用照常起作用。
5、电动机M1、M2由热继电器FR1、FR2实现电动机长期过载保护；断路器QS实现全电路的过流、欠电压保护及热保护；熔断器FU、FU1至FU6实现各部分电路的短路保护。

結果 (英文) 1:

1, circuit power circuit breaker switch is locked with SA QS. Machine plugged in when the key switch operation, close the QS, increases security. When power is needed, use a lock switch key in SA and right-handed, power down the QS coil, then flipping the circuit breaker QS to close, at this point, the machine power supply 380V AC voltage into the main circuit and control transformer 110V output control circuits safety lighting circuits, voltage 6V lights, 24V. A power outage, if SA l-switch lock, contact SA (2-3) closed, QS coil power, breaker QS disconnect machine off. If there is misuse, QS automatic tripping again in 0.1s.2, open the machine control distribution boxes niche door, automatic removal of machine power protection. Niche in distribution box equipped with a safety switch on the door SQ2, wall box when you open switchboard door, safety switch contact SQ2 (2-3) closed, QS will make circuit breaker coil, QS automatic tripping circuit breakers, power off your machine, in order to ensure personal safety.3, machine tool bed belt cover is equipped with safety switches SQ1, when the belt cover is opened, the safety switch contact SQ1 (1-4) disconnect contactor KM1, KM2 and KM3 coil circuit cut off, the motor will stop rotating, in order to ensure personal safety.4, to meet the open machine tools distribution box niche charged maintenance needs, SQ2 safety switch pull the drive rod, the contactor SQ2 (2-3) disconnected, QS coil power, QS-switch can still be closed. When the repair is completed, turn off the alcove behind the door, SQ2 reset switch driving rod, SQ2 protection works as usual.5, motor M1, M2 by thermal relay FR1 and FR2 motor overload protection for a long time; QS realization of circuit breaker circuit over current, under voltage protection and thermal protection fuses FU, FU1 to FU6 for each circuit short circuit protection.

結果 (英文) 3:

1, the circuit power switch is a switch lock SA circuit breaker QS. When the machine is connected to the power supply, it is necessary to use the key switch to operate, then close the QS, and increase the safety. The need for power transmission, first with a key switch insertion SA switch lock and dextral, the QS coil power, and then trigger circuit breaker QS will the, at this moment, the machine tool power transmission white circuit 380V AC voltage, and the control output transformer 110V control circuit, lighting 24V safety circuit, 6V lights voltage. When power off, if the switch lock SA L, then contact SA (2-3) closed, QS coil power, circuit breaker QS off, machine power. If an error occurs, QS will automatically trip within the 0.1s.2, open the machine control distribution box niche door, automatic protection of power machine removal. In the niche distribution box door is provided with a safety limit switch SQ2, when opening the distribution plate wall of the box door, safety switch contact SQ2 (2-3) closed will make breaker QS coil energized, the breaker QS automatic tripping, disconnect the power tools, to ensure personal safety.3, the headstock, belt cover is provided with a safety switch SQ1, when open the belt cover, SQ1 safety contact switch (1 - 4) disconnected the contactors KM1, km2 and KM3 coil circuit cut off, the motor will stop all rotation, in order to ensure the personal safety.4, to meet the open machine distribution box niche door live overhaul, the SQ2 safety switch driving rod is pulled out, the contact SQ2 (2-3) to disconnect, at this time the QS coil power, switch (QS) is still on. When the repair is completed, close the door after the SQ2 niche, a switch driving rod is reset, the protective effect of SQ2 will play a role.5, the motors M1, M2 by thermal relay FR1, FR2 achieve long-term motor overload protection; realize the whole circuit over-current and under voltage protection and thermal protection circuit breaker QS; the fuse Fu, fu1 to FU6 realization of short circuit protection for each part of the circuit.