How to implement S7-200 PLC Control Two-axis Steps Motor Reset Details Example

1. Title requirements There are two sets of stepped drive systems on a device, the model of stepped drive is SH-2H042MA, the model number of stepper motor is 17HS111, which is two-phase four-wire DC 24V step motor, requires: Press the button SB1, stepper The motive drives the mechanism reset in the X direction and the Y direction. When the X direction is close to the switch SQ1, stop, the Y direction is stopped close to the switch SQ2, and the reset is completed. (1) Main hardware and hardware configuration 1,1 sets of Step7-micro / win v4.0. The 2,2 sets of steps in the model 17HS111. The 3,2 sets of stepper drivers for SH-2H042MA. 4,1 CPU226CN. (2) Wiring of Stepper Motors and Steam Drivers The stepper motor selected by this system is a stepper motor of two-phase four-wire. The model is 17HS111, and the outline of the stepper motor of this model is shown in Figure 3-2 (only 1 motor in the figure). . Its meaning is: 4 of the stepping motor is red, green, yellow, yellow and blue: where red leads should be connected to the A + terminal of the stepper driver, and the green leader should be connected to the step drive A-wiring. The terminal is connected, the yellow leader should be connected to the B + terminal terminal of the stepped drive, and the blue lead line should be connected to the B-terminal terminal of the stepped drive. (3) PLC and stepping motor, wiring of stepper driver The stepper driver has two kinds of consecutive connections, which is related to the control signal. The Siemens PLC output signal is a + 24V signal (ie, the PNP connection), so a total jet method should be used. The D1R- and CP-The negative electrode of the stepper driver is short, as shown in Figure 3-2. By the way, Mitsubishi's PLC output is a low potential signal (i.e., NPN connection), so a common male connection should be employed. 2, program writing 1, main program 2, PTO initialization 3, X direction stop 4, Y direction stop 【key point】 The key points of writing this program are initialization and force to set the stepper motor to the SMB67 setting, which is under understanding of the SMB67 register. Among them, the meaning of SMB67 = 16 # 85 is that the PTO allows, selecting a PTO mode, a single operation, and a time base, a PTO pulse update, and a PTO cycle update. To stop the PTO output, you must first disable the PTO output in the control byte and perform the PLS instruction. If you do not want to partiate resistance on the output, the DC + 5V is connected to the PLC's 1L + terminal block, but the resulting problem is that the other output signals of this group are DC + 5V, so it is integrated when designing. Thus. , Read full text, original title: How to implement S7-200 PLC control two-axis stepper motor reset? Article Source: [Micro Signal: GKYXT1508, WeChat public number: industrial control Yunxue Hall] Welcome to add attention! Please indicate the source of the article.