WAGO -I/O-SYSTEM 750 Manual page 38

38 • 750-636 [DC Drive Controller]
Function Description
Example 18, "Approach without CurrentControl_PWM":
100 %
Fig. 2.1.1-25: Example 18, "Approach without CurrentControl_PWM"
A positioning operation without phase P4 or CurrentControl is possible if the
ShutDown_Distance value is set to 0. Another reason for the absence of phase
P4 could be that the direction-dependent prestop is at least the length of the
configured ShutDown_Distance (ShutDown_Distance <= Prestop).
The following examples utilize the CurrentControl_ON control bit. It can be
set, or reset, at any time during the moving cycle; however, it is only effective
during phase P3.
Example 19, "Approach with CurrentControl_PWM =
f(Control.CurrentControl_ON), Version 1":
100 %
Fig. 2.1.1-26: Example 19, "Approach with CurrentControl_PWM =
f(Control.CurrentControl_ON), Version 1"
The CurrentControl_ON can switch on CurrentControl_PWM after the start of
phase P3, as well as switch it off again.
P1
CurrentLimit_PWM
50 %
0 %
RampTime_START CurrentLimit_Time
P1
CurrentLimit_PWM
50 %
0 %
RampTime_START CurrentLimit_Time
Control.CurrentControl_ON = 0
P2 P3
PWM 100 %
P2 P3 P4
PWM
100 %
CurrentControl_PWM
Control.CurrentControl_ON = 1
P5
Set Point Position
Prestop
RampTime_STOP
g063627e
P5
Set Point Position
Prestop
RampTime_STOP
g063628e
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