2. NAME: SERVILINK ENGINEERS PVT.LTD ADDRESS: 988/16/1, GIDC, MAKARPURA, BARODA-10. GUIDED BY: ANANT PARIKH LOGO:

3. A stepper motor is a brushless, electric motor that can divide a full rotation into a large number of steps. The motor’s position can be controlled precisely without any feedback mechanism. What is Stepper motor?

6. Stepper motor Types Permanent magnet Hybrid Synchronous Variable reluctance/ unipolar

8. Application of stepper motor As stepper motors are digitally controlled and more rugged so they are also used in packaging machinery .

13. SPECIFICATIONS OF CPU 226 PARTICULARS SPECIFICATIONS Supply voltage max 264 VAC Supply voltage min 85 VAC Analogue input/output 0-10 Volts No. of digital inputs 24 No. of digital outputs 16 (Transistor) DC voltage input/output 24 VDC Current mode: 2 mA – 10mA Sourcing current 750 mA for logic - ‘1’ For use with SIMATIC S7-200 CPU

15. BLOCK DIAGRAM

16. LOGIC TABLE Counter clockwise Clockwise STEP WINDING 1 WINDING 2 WINDING 3 WINDING 4 1. 1 0 0 1 2. 1 1 0 0 3. 0 1 1 0 4. 0 0 1 1

17. STEPPER MOTOR STEP ANGLES rpm x steps per revolution 60 Steps per second = STEP ANGLE STEPS PER REVOLUTION 0.72 500 1.8 200 2.0 180 2.5 144 5.0 72 7.5 48 15 24

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