Siemens SIMATIC FM 353 Manual page 24

Basic Principles of Positioning
Structure of a positioning circuit
Figure 2-2 show the structure of a position control circuit with FM 353 and stepper
motor.
EMERG. STOP
Safety de-
vice
Motor
Fig. 2-2 Setup of positioning with stepper motor (example)
FM 353
The FM 353 generates the following for the power section:
S Control frequency
S Direction signal
S Special control signals
Power section
The power section processes the control signals and supplies power to the motor.
Motor
The motor is connected, either directly or by way of mechanical transmission ele-
ments, to the machine component to be moved.
2-2
Power grid
Drive port
Power section
Movement
M
Mechanical transmis-
sion elements
FM 353
Parameterize
Safety device
"Parameterize FM 353"
FM 353 Stepper Drive Positioning Module
6ES7 353-1AH01-8BG0
CPU
PG