Spraying Systems Co 1550+ AutoJet, Руководство пользователя

Страница: 36 / 86

36
Variable Spray Time is used to create spray applications with variable length. The lengths of the spray depends on the
specific time delays between the rising and falling edge of the trigger input. Spray follows trigger according to user settings.
The system will spray after trigger goes high then stops until next trigger event. So for every trigger, there is a single spray
event. For this timing mode you enter “ Start Delay ” and “ Stop Delay ”. To enter your applications delays touch the time
display box, and a new window will open to allow you to enter your time.
See example.
We’ve entered a
Start Delay of 2 seconds, and a Stop Delay of 1 second.
For every trigger, the system would receive the trigger signal from the sensor then wait for 2 seconds then spray for time
the sensor sees the object the continue to spray for 1 second. The system would wait for the next trigger signal and repeat
the application. The length of time spraying or Spray Period varies as the sensor reads the object.
Start Delay is defined as the time the system waits before starting the Spray Period .
Start Delay time can be set from 0.000 to 9999.999 seconds.
Stop Delay is defined as the time system sprays after the trigger signal has dropped.
Stop Delay time can be set from 0.000 to 9999.999 seconds.
To reiterate in the application the sensor or trigger signal is activated, the spray delay time is activated. Once the Start
Delay time is finished the system starts the Spray Period time which actuates the spray nozzle then sprays for the variable
amount of time based on the sensor reading of the objects, then the system continues to spray for the amount of the Stop
Delay has been programmed.
An example of this timing is shown in the following picture.
Parameters settings for Variable Spray Time:
Parameter Value
Start delay In seconds
Stop delay In seconds
Anticipator time In seconds – for use with air atomizing spray nozzles
Follower time In seconds – for use with air atomizing spray nozzles
G raphic repres ent ation for V ariable Spray Time Using PWM: