Fundamentals Of Positioning; Positioning Methods - Siemens SIMATIC S5 Manual

IP 266
4

Fundamentals of Positioning

Positioning means bringing a load to a certain position within a specific period of
time, making allowance for force and torque.
Various methods are used to perform this task.
4.1

Positioning Methods

A drive can be positioned in one of two ways:
• under open-loop control
• under closed-loop control
The figure below shows the options available in conjunction with S5-100U
programmable controllers.
Closed-loop control
DC drives
IP266 positioning
module
EWA 4NEB 812 6057-02
Positioning
Three-phase AC
Fixed-speed drives
drives
385 B high-speed
counter
Figure 4-1. Positioning Methods
Fundamentals of Positioning
Open-loop control
Stepping motors
IP 267 positioning
module
4-1