1The type selecting Japan of PLC and fontal FA-2 PLC is structure of module of light body plug-in unit, its CPU module, power source module, input output module becomes independent severally, can insert each positions freely, i/O module can be configured according to need, especially the independent character that relay outputs module to output a dot each, make a design convenient, simplify, managing hardware resource. Accordingly, chose undertake transforming to the machine tool with fontal FA-2 PLC. 3.
2 systems configure systematic hardware and software to use cordwood system construction, all treatment movement all by PLC programme controll. The system configures a graph, if pursue,1 is shown. The 8 chamfer of PLC engine portion deserve to have 2 inputs module and 4 output module on motherboard, module of an exterior power source is used for PC input. Periphery circuit includes 2 imitate to measure distance control equipment, 2 wait from adaptive control device and switch of a few electromagnetism a powerful person, indicator light, journey, pushbutton. Pushbutton, knob receives 1# to input module, its distribute a list, if express,1 is shown. 3.
Control equipment of distance of quantity of 3 electrons imitate (HUS-13) control this electron imitate to measure distance control equipment to be controlled by logistic relay formerly, show the concerned control signal device (wait like actuating signal) instead exports control by PLC, to it the hookup of 3# of relevant PLC output module, if pursue,2 are shown. 3.
4Of device of feed of SFH-243 main shaft transform this device to cooperate use hair to control signal with RBS-246 combination relay formerly, use at controlling investment of measurement unit of honing pressure, measurement. As a result of its input and output signal are n signal, so its function changes to come true by PLC, in-house logic uses PLC programme controll, did the following and proper processing in specific implementation: In wheelhead treatment process, just received in gas source fashionable, appearance sends signal, for false signal. In programming, measure signal to rotate in main shaft take after 3s, stable 0.
2s hind is received. After transforming corresponding program flow chart, if pursue,3 are shown. 3.
Of 5 lock device transform device of raw stop a machine by cutting off the power to use logistic relay to control, means of apply the brake of specific power consumption is used after transforming, handy easy travel, its principle pursues, if pursue,4 are shown. Its programme diagram, if pursue,5 are shown. Honing is finished, m533 is ON, head up, main shaft stops turn, p260 is OFF, electric machinery begins apply the brake and time, p261, T15 is ON, KM82 of contactor of classics apply the brake adds dc 24V tension to electric machinery winding, delay time disconnects to T15 the signal that close a point, p261 is OFF, apply the brake ends. This equipment classics debugs 4 last words after devoted production, improved manufacturing efficiency and product quality, saved facility cost. Moving in order. CNC Milling