Xylem 3AB2 Manual De Instrucciones página 10

Advanced Settings include:
• Trigger conditions for No Water/Loss of Prime Fault
• Calibration of power threshold used for No Water/Loss of
Prime Fault
• No Water/Loss of Prime Restart Time Fixed or Progressive
• Size of pressure variation used for No Flow detection
Note: In the text below, "Dry Well" and "No Water/Loss of
Prime" mean the same thing.
HOW SETTINGS ARE CHANGED
Advanced settings are made by holding down pushbutton(s)
while at the same time switching a DIP switch in a specific
direction. In all cases, power to the controller must be on
and the pump stopped in order to make the desired change.
If needed, the pump can be forced to stop by disconnecting
one wire from the switch input terminal block.
After settings have been changed, the controller must run
and stop the pump for the setting to be stored in memory.
Once this is done, removing power will not affect settings.
There is no limit to how many times the settings can be
changed.
Settings are described below. Where applicable, after a
description, there is a table showing which pushbutton(s)
and DIP switch to use to make a particular setting. The
tables show which pushbutton(s) to hold down, which DIP
switch to flip and the direction to flip it. If the DIP switch is
in the wrong starting position, move it before pressing the
pushbutton.
For example, suppose a setting calls for flipping a DIP
switch from left to right but it is already in the right
position. In that case, before pressing any pushbuttons, you
would first flip the switch to the left position. Then you
would press the pushbutton and flip the switch to the right.
You can switch the DIP switches all you want without
affecting any of the advanced settings as long as no
pushbuttons are pressed. You can change settings as many
times as you want. Be sure to put DIP switches back in the
required positions after the setting are done.
10
RESETTING THE FACTORY DEFAULTS
Controller settings can always be returned to factory
defaults by pressing both pushbuttons for 10 or more
seconds while controller is powered and the pump is
stopped. Default controller settings are:
• Pressure Setting = 50 PSI
• No Water/Loss of Prime trigger = Low Pressure AND
Low Power
• No Water/Loss of Prime power level = factory default
which is based on motor overload switch
• No Water/Loss of Prime restart time = increasing
1/10/20/30/60 min.
• Pressure variation = +/-2 PSI.
NO WATER/LOSS OF PRIME TRIGGER CONDITIONS
No Water/Loss of Prime fault has four choices for trigger
conditions. The factory default is to trigger when power
and pressure are both low. This is the best choice for most
applications. The other three choices are Low Power only,
Low Pressure only and disabled. Low Pressure is defined as
being less than 75% of pressure setting.
No Water/ Pushbutton
Loss of Prime to Hold
Trigger Condition Down
Low Pressure +
Low Power*
Low Pressure Only
Low Power Only
Bottom
Disabled
* Factory Default
NO WATER/LOSS OF PRIME POWER CALIBRATION
While pump is pumping water press and hold both
pushbuttons until LED turns orange. This will calibrate
the power level at which the No Water/Loss of Prime
fault occurs. This calibration is especially important when
Low Power only is used as the trigger condition. Hold the
pushbuttons for at least 3 seconds to get the LED to turn
orange. The controller requires the pump to be running at
least at 75% of full speed before allowing calibration. If the
LED does not turn orange it may be necessary to flow more
water and/or temporarily increase the pressure setting to
get the pump speed to 75%. If power is not calibrated, the
controller will use a default value based on the setting of the
motor overload setting dial.
Direction to
DIP Switch
Flip
to Flip
DIP Switch
Left to Right
Top
Right to Left
Top
Left to Right
Right to Left