Siemens Simatic S7-400 - Controlled Positioning with the FM 453

Technological Functions of the S7-400
4-8
Automation System S7-400 Configuration and Use
A5E0044271 1-02
4.6 Controlled Positioning with the FM 453
Introduction
The FM 453 is a positioning module for servo-controlled positioning with stepping
motors and servomotors. It provides the following features to relieve the load on
the CPU:
• Actual-value acquisition and servo-control positioning
• Data storage on the FM 453
Functions of the FM 453
The FM 453 provides you with the following functions:
• Configuration in inching mode
• Controlling
• Reference point approach
• Incremental mode, relative
• Manual data input (MDI)
• Automatic and automatic single block
Performance characteristics of the FM 453
The FM 453 has the following performance characteristics:
• Number of axes:
-- 3 linear or rotary axes
• Inputs and outputs
-- 4 digital inputs per axis
-- 4 digital outputs per axis
• Typical drives
-- Asynchronous motor
-- D C m o t o r
• Connectable encoders for positioning with servomotors:
-- Incremental encoder 5 V differential signal, symmetrical
-- SSI absolute encoder