Precision Pumping Systems
•
GoPPS.com
•
6515 Business Way, Boise, ID 83716
•
208.323.5300
5.
• Monitor the pump station operations to ensure the pump
station is operating correctly.
• If the pump station gets to the Pressure Setpoint, then the
pump station is operating correctly.
NOTE: If any FAULTS appear on the screen, turn the HOA switches
back to the OFF position and contact Precision Pumping Systems
immediately.
BASIC OPERATIONS
7.1 OVERVIEW: Manual vs. Automatic Modes
7.2 Start a Pump in Manual Mode
7.3 Start a Pump in Auto Mode
MANUAL MODE
AUTOMATIC MODE
• Manual mode bypasses
automation and system backup
protections.
• A pump can be operated manually
if its corresponding operator
switch (HOA switch) is in the
HAND position. The operator can
then use the potentiometer to
control the pump speed.
Note: For systems in which the
main pumps alternate between
using a single VFD, only the Lead
pump will be capable of variable
speeds.
• The pump controller
automatically controls
the pump, turning it
ON or OFF and typically
varying its speed
according to a
programmed process.
• A pump is in AUTO
mode if its correspond-
ing operator switch
(HOA) is in the AUTO
position.
CAUTION! If the pumping system has been shut-down for a
long time, or if the system is not pressurized, specific start-up
procedures must be performed. Perform the following steps
only if the system has been shut-down temporarily and the
system is pressurized.
CAUTION! If the pumping system has been shut-down for a
long time, or if the system is not pressurized, specific start-up
procedures must be performed. Perform the following steps
only if the system has been shut-down temporarily and the
system is pressurized.
1. Turn all HOA switches to the OFF position.
2. Turn the Main Disconnect Switch to ON.
3. Turn all Speed Potentiometers to 0 Hz.
4. Turn the desired pump HOA switch to the HAND position.
5. Adjust the pump’s corresponding Speed Potentiometer.
6. When finished, put the pump HOA switch back to AUTO.
CAUTION! Do not leave a pump running in HAND (Manual)
mode for long periods of time, or unattended. Automatic system
protections will be disabled and extensive damage to equipment
could occur.
7.4 Stop a Pump
7.6 Reset the System
7.5 Perform an Emergency Stop
1. Turn all HOA switches to the OFF position.
2. Turn the Main Disconnect Switch to ON.
3. Turn the desired pump HOA switch to the AUTO position.
1. Press the E-Stop button on the HMI’s Main Screen.
1. Press RESET on the default screen of the PLC program.
2. If the RESET button is not available, turn all HOA switches to
OFF and then back to AUTO.
1. Turn all Pump HOA switches to the OFF position.
2. Turn the Main Disconnect Switch to the OFF position.
WARNING! Even if the Main Disconnect Switch is OFF, external
voltages may still be present.
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