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2–Pump 12-Station Controllers Chapter 3: Installation 31
BLBK AFTER 12 LOADS
SETTING FOR PUMP 1
IDLE DELAY TIME?
NO/YES
Next, set the Pulse Off time value. This is the duration that the blowback solenoid is turned
OFF.
• Using the number keys, enter the new Off Time setting, then press ENTER to save the
new value.
To save the current Off Time setting and move to the next menu item:
• Press ENTER without entering a value.
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:
• Press the YES key to alter the Idle Delay time.