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3: INSTALLER PRE-START SELECTIONS
DRIVE SETTINGS AND PROTECTION
Maximum Frequency (Speed) Switch
3AS _ _ Models Only
This switch is only on models no.’s starting with 3AS. It
selects the maximum frequency (motor speed) used to
energize the motor to be either 60 or 80 Hz.
• 60 Hz - Use for matched pump-motor combinations
where the motor HP and pump HP are the same.
Example: 2 HP WE and 2 HP Motor
• 80 Hz - Use for mis-matched pump-motor combinations
where motor HP is larger than the pump HP (typically 2x
larger). Example: 1 HP WE and 2 HP Motor
Pump Stop Sensitivity – 1AS _ _ Model Only
This switch is only on model numbers starting with 1AS.
Selections are High or Low. High will stop the pump
when speed drops to 40Hz. This provides the fastest
turn off when flow stops. If the pump stops when there
is flow in the system, set the Pump Stop Sensitivity to
Low. Low will stop the pump when speed drops to 30Hz.
Low is less likely to cycle but slower turn-off.
Dry Well Sensitivity
Selections are High or Low. This function protects the
system from running dry. The selection depends on
several conditions and pump size.
Start with the sensitivity on high and test by running
pump at various flows. If a dry well fault is triggered,
switch to low setting.
Restart times in minutes are: 1, 10, 20, 30, 60, 60 and
repeating every 60 minutes thereafter.
Example: 1st fault shuts down for 1 minute, next fault
shuts down for 10 minutes, then 20, etc.
Low Pressure Cut-Off
This fault is disabled for the first 10 minutes of pump run
time after power up to allow the system to be purged.
ON Position - Used for constant pressure systems. The
drive will turn off if the system pressure drops 20 PSI
below the system set point pressure for 30 seconds.
This fault must be manually reset, it will not clear
automatically, this may prevent property damage if a pipe
breaks.
OFF Position - Use for open discharge situations such as
filling a pond or tank, or whenever the system pressure
will be 20 PSI or more below the system set point
pressure.
Pressure Drop – 5 PSI or 20 PSI
The pressure drop before the pump restarts can be set to
the standard 5 PSI or to 20 PSI.
The 20 PSI setting results in fewer starts for systems with
leaks. It is recommended for irrigation systems. It will
require a tank pre-charge adjustment. See Tank Sizing and
Tank Pressure Setting.
CURRENT LIMIT PROTECTION
Motor Overload Setting Dial
Failure to properly adjust the Motor
Overload Setting before applying power may
damage the motor or wire and void the warranty.
• Use Tables 3 and 4 to determine which controller and
setting to use. Note that some 200V motors require
upsizing to the next larger controller.
• Set the Motor Overload - Turn the dial pointer to align
with the motor’s service factor amps (SFA). For three
phase motors and any other motor without integral
thermal protection choose the amperage value on the
UIB that is less than or equal to the SFA listed on the
nameplate. For single phase motors and other motors
with integral thermal protection choose the amperage
value on the UIB that is closest to the SFA listed on the
nameplate.
• If the output current exceeds the motor overload setting,
the controller will limit current by reducing the output
voltage and frequency. If the controller reduces the output
frequency to 40 Hz and the current still exceeds the
motor overload setting, the controller will shut down and
indicate Over Current error (4 red blinks).
Purge the System of Air
• Insure that plumbing connections are tight and wire
connections are correct.
• Partially open a valve and turn power to controller on.
• Run the pump and controller with the furthest and
highest faucets or valves in the system open. This will
allow all air to escape the piping system.
• When flow is constant, close the faucets or valves and
allow the system pressure to reach the 50 PSI pre-set
pressure and shutdown.
Controller Status Indicator
(Light Visible Through
Window in Cover)
The controller status indicator light has 3 possible modes:
• Solid green = Standby, pump not running. There is no
water flow or the SWITCH INPUT is open.
• Blinking green = Pump running. There is flow (possibly a
leak) and the SWITCH INPUT terminals are connected to
each other (closed).
• Red = Error/Fault. Light will blink to indicate a particular
fault. See Troubleshooting Section for Fault Codes.
PRESSURE ADJUSTMENT – Only if pressure
other than 50 PSI is desired:
• Adjust tank pressure according to the desired set pressure
- see Tank Sizing and Tank Pressure Setting section.
• Open a faucet and allow pump to start and purge the
system of air.
• When pressure gauge reaches 50, Press and Hold the
Increase or the Decrease pushbutton until the desired
pressure shows on the gauge.
• The larger the tank the longer it will take to increase
pressure.
• When desired pressure is reached, close the faucet and
allow the system to shut down.
Pump size determines the maximum flow and head which can
be provided, if flow or head are not sufficient and rotation on
three-phase units has been verified, a larger pump is required.
3. INSTALLER PRE-START SELECTIONS
WARNING
