IC698CPE040 Central Processing Unit (CPU)

IC698CPE040 Central Processing Unit (CPU)

The lifting and lowering process of IC698CPE040 is realized by using the motor to wind the wire rope positively and negatively to drive the cage to move up and down. Small cargo lifts are generally composed of motors, pulleys, wire ropes, cages and a variety of master electric appliances, etc., and its basic structure is shown in Figure 1. SQ1 ~ SQ4 can be a travel switch, or proximity switches, used for position detection, play a role in limiting the position.

IC698CPE040 according to the cage in the lifting process, requires a slow to fast and then from fast to slow process, that is, when starting a slow speed, reach a certain speed and then run fast, when close to the end of the first deceleration and then slow stop, for this reason, the lifting process in Figure 1 is divided into three travel intervals, the lifting speed of the interval segments as shown in Figure 2. Press the lifting start button SB2 (or descending button SB3), the cage starts smoothly at a lower speed of one speed, runs to a predetermined position, then runs quickly at two speeds, and when it reaches the predetermined position again, it stops smoothly at one speed.

IC698CPE040 control on the one hand, instead of relay lines, on the other hand, for the system requirements of lifting and lowering, as well as by the limit switches to obtain the position information of the cage, through the processing of the PLC internal program, the Y0 ~ Y2 terminal output the corresponding “0”, “1” signal to control the frequency converter. After processed by the internal program of PLC, the corresponding “0” and “1” signals are output from Y0 to Y2 terminals to control the status of the input terminals 2DF, FR and RR of the inverter, so that the inverter outputs the corresponding frequency according to Fig. 2 in time to control the operation characteristics of the elevator. The speed gear is selected by 2DF, and the size of the speed of each gear is set by the function preset for the inverter, and then the frequency switching is controlled by the program of PLC.