1STEP 5V/204kHz
2.6 Functions of the 1STEP 5V/204kHz
ET 200S Positioning
36 Operating Instructions, 05/2007, A5E00124871-04
2.6.4 Incremental Mode, Relative
Functional Description
The incremental run (incremental mode) is the main function of the 1STEP 5V/204kHz. You
can use it to move the stepping motor a defined distance and so approach a set position.
You can determine the direction of the run and the velocity at the start.
The Positioning Job for Incremental Mode, Relative
The job contains the following information:
● Distance (number of pulses to be emitted)
● Multiplier G for the velocity/output frequency F
a
● Reduction factor R for the assigned parameters base frequency F
b
● Mode = 0 for incremental mode, relative
● Direction selection as start
● STOP at the Reference Cam
Note
The 1STEP 5V/204kHz checks the set distance for limit values (minimum 1 pulse and
maximum 1 048 575 pulses). The distance to the limit switch is not checked by the 1STEP
5V/204kHz. The run is stopped at the latest when the limit switch is reached.
Feedback Messages
Incremental mode is indicated by the POS feedback bit.
On completion of a correct incremental mode run, the POS_RCD feedback bit indicates that
the position has been reached.
If the incremental run is interrupted, the feedback bit POS_RCD is not displayed. If the
incremental run is stopped, the path still left to traverse is displayed.
See also
Stopping the Stepping Motor (Page 37)
Assignment of the Feedback and Control Interfaces (Page 44)
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