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PLC Features • PLC features can be concluded in the following: • They are rugged, withstand industrial environment, such as heat, humidity, mechanical shocks and vibrations • The interfacing for inputs and outputs is inside the controller • They are easily programmed • PLC is capable of both logic and PID control. Positioning Control The World of Positioning Control 1 1-3 Stepping motor • Positioning mechanism is simple. • If load is heavy, motor may step out and displacement can occur. • Motor capacity is small. • Precision is poor at high speed. DC servo system • Positioning precision is good. • Maintenance is required for motor brushes. Motor control centers are simply physical groupings of combination starters in one assembly. A combination starter is a single enclosure containing the motor starter, fuses or circuit breaker, and a device for disconnecting power. Other devices associated with the motor, such as pushbuttons and indicator lights may also be included. PLC Based Motor Control using VFD MOTOR CONTROL •Motor Control defines the methods of controlling the operation and performance of electric motors. START PLC Based Motor Control using VFD MOTOR CONTROL Motor Starting 1. Across the Line / Direct On-Line 2. Reduced Voltage Starters A second interface between the PLC and the motor and the motor controller is shown in the next diagrams. This diagram is an earlier wiring diagram that uses 24 V inputs instead of the 5 V input for the encoder. 2.2 kQ + V m r 0-5 C t 0- C 4.7 kQ l MD20 A 1.0 kQ r The wiring for the motor from the PLC and motor drive board is shown below: 2.2 kQ First of all make scaling in Main OB1 for manual or Open loop control. Then take Cyclic OB30 and Take PID compact block as below. Give Set point address and analog ip in Input PER. Manual Enable signal give any Digital IP address. For Ex I0.0. Manual Value - Give scaling output address from Main OB. Motor control center (MCC) Since it is impossible for a technician to be in two places at once, it is often necessary to perform diagnostic checks on a malfunctioning electric motor from the MCC where the technician has access to all the control circuitry. One such diagnostic check is line current, to detect the presence of an open motor I would like to introduce you to the small series of articles about using Motion Control blocks in Siemens S7-1200 controller. I'll write about the whole axis configuration process, connecting the drive and we'll try to control our motor in many ways. Motion control in S7-1200 In S7-1200 we have the possibility of using already […] control circuit and when the control circuit detects that the position is correct, it stops the motor. If the control circuit detects that the angle is not correct, it will turn the motor the correct direction until the angle is correct. Normally a servo is used to control an angular motion of between 0 and 180 degrees. One Kind of Control Method Based on PLC of Stepper Motor Yujie Chonga, Changjie Xub, Haimei Feng c, Xin Shid, Jie Lie, Chang Duf, Junhong Wangg NCIST YanJiao, San He HeBei Province, China a505480036@qq.com, b729511692@qq.com, c76358265@qq.com, d543505993@qq.com, e491923668@qq.com, f416863719@qq.com, g2589427992@qq.com Abstract—This pape