AEC VacTrac Series Conveying Systems - Manual (Page 59)

Page 58 12-Station Controllers VacTrac™ Conveying Systems
BLBK AFTER 12 LOADS
SETTING FOR PUMP 1
IDLE DELAY TIME?
NO/YES
The following screen displays.
The last blowback setting tells the controller how many loads on
stations assigned to the selected pump must be completed before
starting a blowback cycle.
After you define this setting, the controller returns to the Pump
Settings menu screen.
Idle Delay Time Settings, Pump Settings Menu
After a station load is complete, the controller looks for a new
demand on the system. If all stations are satisfied with material, the
controller enters
IDLE (No Activity) state. During this state, the
atmospheric vent valve is open and vacuum vents. During IDLE
(No Activity) state time, the controller monitors inputs looking for
a demand on the system. Eventually, if no demand is on the
system, the controller shuts down the pump(s) and waits for a
demand signal. This process saves energy and prolongs the life of
the vacuum pump.
The Idle time is the length of time in which the controller waits
with no demand until the pump is turned off.
To set up the controller Idle Delay time, enter the Pump Settings
menu, then:
„ Press the MENU key until the Idle Delay Time prompt screen
displays as follows: