E-Flo Plus Features
14
311596A
Prime/Flush Mode
Prime mode allows system priming and flushing. Once
enabled, it commands the pump to run at the following
flow rates for 2 minutes:
2000cc lower: 33.8 gpm (128.4 lpm)
1500cc lower: 24.3 gpm (92.3 lpm)
1000cc lower: 17.9 gpm (68.0 lpm)
Parameter Pr 20.40 enables and disables the
Prime/Flush mode.
Prime/Flush Enable => Pr 20.40 = 1 (Prime/Flush cycle
will start).
Prime/Flush Disable => Pr 20.40 = 0.
Notes:
1.
Run the Prime/Flush mode with minimum flow
restriction.
2.
Once Pr 20.40 is set to 1, the Prime/Flush cycle will
start and run for 2 minutes, at which time the pump
will stop. Pr 20.40 is automatically reset back to 0.
Back Pressure Regulator (BPR)
Control
BPR Production/Sleep modes – Keypad / Modbus
Control.
Digital I/O #3 (Pin #26) is allocated for 24VDC solenoid
driven air valve. Low output (<5V) indicates that Sleep
Mode is disabled. High output (>15V) indicates that
Sleep Mode is enabled.
Pr 20.18 is a Sleep Mode control parameter with the fol-
lowing configuration:
Pr 20.18 = 0: Sleep Mode disabled
Pr 20.18 = 1: Sleep Mode enabled
BPR Production/Sleep modes Graco E-Flo Plus
Control
The E-Flo Plus program offers several BPR control fea-
tures, which are not available using the Keypad. See
Computer Control and Monitoring, page 24, for more
information.
1.
Automatic sleep mode flow setting.
2.
Seven day timer.
Automatic sleep mode setting
1.
Launch E-Flo Plus program.
2.
In the Run screen press blue “BPR in Production
Mode” button once. It will now show “BPR in Sleep
Mode” message indicating that air valve is ON and
the system is in sleep mode.
3.
Use Flow Slider to select desired Sleep Mode flow.
The Sleep Mode flow is now calibrated.
Seven-Day Timer setting
1.
Launch E-Flo Plus program.
2.
In the Run screen under Options select “Advance
screen”.
3.
Select Auto / Setup option in BPR Mode section.
This will launch BPR – Sleep Mode Timer Setup
screen.
Make desired time and flow selections.
Enabling the sleep mode will not change flow rate.
