Using PID_3Step
5.3 PID_3Step V1
PID control
Function Manual, 03/2017, A5E35300227-AC
155
Actuators with endstop signals
Proceed as follows to measure the transition time of actuators with endstop signals:
● The "Endstop signals" check box in the basic settings has been selected and Actuator_H
and Actuator_L are connected.
● An online connection to the CPU has been established.
Proceed as follows to measure motor transition time with endstop signals:
1. Select the "Use actuator endstop signals" check box.
2. Select the direction in which the actuator is to be moved.
– Open - Close - Open
The actuator is moved first to the high endstop, then to the low endstop and then back
to the high endstop.
– Close - Open - Close
The actuator is moved first to the low endstop, then to the high endstop and then back
to the low endstop.
3. Click the
"Start transition time measurement" icon.
The actuator is moved in the selected direction. Time measurement will start once the
actuator has reached the first endstop and will end when the actuator reaches this endstop
for the second time. The motor transition time is equal to the time measured divided by two.
The progress and status of transition time measurement are displayed. The transition time
measured is saved in the instance data block on the CPU and displayed in the "Measured
transition time" field. PID_3Step will change to "Inactive" mode once transition time
measurement is complete.
Cancelling transition time measurement
PID_3Step will change to "Inactive" mode immediately if you cancel transition time
measurement. The actuator will stop being moved. You can reactive PID-3Step in the curve
plotter.
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