AEC VacTrac Series Conveying Systems - Manual (Page 48)

VacTrac™ Conveying Systems 12-Station Controllers Page 47
TO SELECT A STATION
PRESS STATION <1-12>
DUMP DELAY 11: 15.0s
PRESS ENTER TO SAVE
To prevent this from occurring, a dump delay timer starts after
each hopper loads. The controller then waits until the timer elapses
before loading the station. Setting this timer is critical to an
efficiently operating conveying system. If you set the timer too
short, inadvertent loads result. If you set the timer too long,
unneccessary sequence delays occur.
To determine the proper setting, fill the hopper with material and
measure the time it takes to dump the material. Add one second
(1 sec.) for smaller hoppers and three seconds (3 sec.) for larger
hoppers to this time. Enter the setting into controller memory using
the following procedure. You may have to adjust the time setting
for the best overall system efficiency.
To alter station dump delay time:
„ Select the station requiring the dump delay time change, and
press the related Station STnn key. nn is the number of the
station you want to alter.
The following screen displays.
The screen displays the station you selected ( 11 in the above
example), and the current dump delay time setting. Using number
keys
1 to 0 , enter the new dump delay time (in seconds) into
controller memory. Keep in mind that the value shifts to the left as
you enter. Use the
0 key to shift to the next multiple of ten.