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Model BB4000 Controller Instruction Manual
8.18. Float Backup - High Level - Function 38
When a discrete Input programmed for “Float Backup - High Level” is closed, the High Level
indicator will come on and the High Level Alarm relay contacts will close. Also see Function 18.
Pump Down Mode (Parameter P.19 = 1)
Available pumps will be called to run when the “Float Backup - High Level” input closes,
assuming that the “Float Backup - Off Level” input is closed.
Pump Up Mode (Parameter P.19 = 2)
All pump operation will be disabled when the “Float Backup - High Level” input closes.
When the “Float Backup - High Level” input opens, the “Pump Re-enable Delay”
(set using Parameter P.37) must expire before pump operation is allowed.
See Page 55.
8.19. Start Flush Cycle - Function 39
When a Discrete Input programmed for “Start Flush Cycle” closes, the Flush cycle will start (as
-
suming that the Flush Cycle Mode Parameter P.40 = 2). It does not matter how long the input
remains closed, but it must be opened to reset the logic. Typically this input is connected to con-
tacts from an external Time Clock. See Page 31.
9. s
ysteM
s
tatus
9.1. High Level Alarm
Upon a High Level Alarm, the indicator will come on and the relay contacts will
close.
A High Level Alarm is delayed for ten seconds after power is applied.
The High Level Alarm relay contacts will be closed when there is no power on the
controller.
The moment electrical power is applied to the controller, the High Level Alarm
relay contacts open.
The High Level Alarm relay contacts will close if there is a complete failure of the
controller.
The High Level Alarm will be activated as the level rises to or above the High Level
Alarm level setting.
A High Level float will activate the alarm. The Discrete Input used must be as-
signed Function 18 or 38.
A High Level from a Level Probe input will activate the alarm. See Parameter b.07.
With the Level Input Source set for the Level Probe (Parameter F.19 = 2 or 3), if
not already on, the High Level Alarm will be activated when Electrode 1 is covered
with liquid.