Product Overview
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FM 353 Stepper Drive Positioning Module
6ES7 353-1AH01-8BG0
Mode control
The operating mode is specified to the FM 353 by way of the user program.
The FM 353 has the following modes available:
S Jogging
S Open-loop control
S Reference point approach
S Incremental mode, relative
S MDI-M
anual Data Input)
S Automatic
S Automatic single block
Determining position
The control frequency pulses emitted by the FM 353 are added internally to form a
position actual value.
Stepper motor control
The stepper motor control performs the following tasks:
S Guidance of the drive commensurate with speed during movement sequence
(e.g. adjustable acceleration and delay, start/stop operation)
S Output of step pulses in form of control frequency
S Output of a direction signal
S Accurate approach by axis into programmed target position
S Phase current control to the drive device
Digital inputs/outputs
Four digital inputs and four outputs can be used as specified by the user.
You might connect:
S Reference-point switches
S Switches for external starting
S Touch probes
S Position reached, Stop (“PEH”)
S Forward/backward rotation
The switching function is assigned to a given I/O number by way of the machine
data.
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