WAGO WAGO-I/O-SYSTEM 750 Manual

Also see for I/O-SYSTEM 750: Manual Manual Technical description User's installation and configuration Manual

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WAGO WAGO-I/O-SYSTEM 750 Manual Manual pdf 31 page image

750-636 [DC Drive Controller] • 31Function DescriptionWAGO-I/O-SYSTEM 750I/O-Modules2.1.1.9.8.4 Positioning with negatively initialized overtravelExample 8:IP AP HP = SPAD BDOTPU = BDPD = BDRT = 0OZ = 0OT = -V - +Fig. 2.1.1-14: Example 8 g063617xThe negatively initialized overtravel forces the setpoint position to beapproached from below.The approach position is generated by adding setpoint position (SP) andovertravel (OT).Example: SP = 1000, OT = -200 Æ Approach position = 800.In this example, the actual position is further below the setpoint position thanthe absolute value of the overtravel; the setpoint position can be reachedwithin the first moving cycle.Example 9:IPAP = HP + PDHP = SP + OTADBDSPAD BDIP HP = SPPU = BDPD = BDRT = 1OZ = 0OT = -VOTOT++--Fig. 2.1.1-15: Example 9 g063618xIn example 9, the actual position is above the setpoint position. The drive mustovertravel the setpoint position by the amount of the overtravel value, in orderto approach the setpoint position from below. However, exact positioning isonly possible if the acceleration distance does not exceed the braking distanceand if the absolute value of the overtravel is at least twice as large as thebraking distance. If this is not the case, please see section 2.1.1.9.8.5,“Positioning with positively initialized overtravel” in order to find out whatmust be considered.