Position Control with SIMATIC S7-1200 & SINAMICS V90 (S Mode)
Overview
This application example demonstrates position control using a SIMATIC S7-1200 PLC and a SINAMICS V90 PN servo drive operating in speed control mode (S mode) via PROFINET RT. The example shows how to implement precise positioning using Siemens Motion Control technology in TIA Portal.
Application Objective
The objective of this application is to achieve accurate and stable position control using an S7-1200 PLC and SINAMICS V90 servo drive, while ensuring reliable communication and smooth motion behaviour.
Application Scope
The application covers hardware setup, PROFINET configuration, positioning axis setup using technology objects, and basic commissioning and operation of the servo axis.
Automation Task Description
The automation task consists of controlling a servo motor via SINAMICS V90 PN using an S7-1200 PLC. Position control is executed through a positioning axis technology object, with motion commands sent over PROFINET RT.
System Architecture
Controller:
– SIMATIC S7-1200 CPU (PN interface)
Drive:
– SINAMICS V90 PN (S mode)
– SIMOTICS S-1FL6 servo motor
Communication:
– PROFINET RT
Engineering Tools:
– TIA Portal
– SINAMICS V-ASSISTANT
Motion Control Concept
The application uses a technology object of type Positioning Axis. Motion commands such as homing, absolute positioning, and relative positioning are executed using standard motion control instructions.
Commissioning & Operation
Commissioning includes drive parameterisation, encoder configuration, PROFINET setup, and technology object activation. The servo axis is operated through homing and positioning commands configured in TIA Portal.
Typical Industrial Applications
– Packaging machines
– Pick-and-place systems
– Conveyor positioning systems
– Servo-driven automation equipment
Key Benefits
– Precise position control using S7-1200
– Seamless integration with SINAMICS V90
– Simple configuration in TIA Portal
– Reliable PROFINET communication
– Cost-effective motion control solution
