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Function Description
WAGO-I/O-SYSTEM 750
750-636/000-x00 DC Drive Controller 24V/5A
Manual
Version 2.1.0
4.9.4
Positioning with Negatively Initialized Overtravel
Example 8:
Figure 17: Example 8
The negatively initialized overtravel forces the setpoint position to be approached
from below. The approach position is generated by adding setpoint position (SP)
and overtravel (OT).
Example: SP = 1000, OT = -200 à Approach position = 800.
As the actual position is further below the setpoint position than the absolute
value of the overtravel, the setpoint position can be reached within the first motion
cycle.
Example 9:
Figure 18: Example 9
The actual position is above the setpoint position. The drive must overtravel the
setpoint position by the amount of the overtravel value, in order to approach the
setpoint position from below. However, exact positioning is only possible if the
acceleration distance does not exceed the braking distance and if the absolute
value of the overtravel is at least twice as large as the braking distance. If not the
case, please see "Positioning with Positively Initialized Overtravel" to find out
what must be considered.