Xylem 19 001 251 R3 Floboy VFD Pumping System - Manual (Page 20)

16
STATION OPERATION
This section covers the sequence of operation for
your station including: Door Switch Operation,
Automatic Operation, and System Safeties.
DOOR SWITCH OPERATION
Individual Pump Switches
Allows operator to select which pumps
operate:
NOTE: Pumps have an OFF/ON switch.
OFF Selected pump does not operate,
regardless of any other switch position.
ON Selected pump will operate,
provided the system switch is set to AUTO
or MANUAL
OPERATIONAL SETTINGS IN THE HMI
Note: HMI Stands for “Human Machine Interface”
Auto-Manual Select
The Auto-manual Control (circled) resides
on the default screen.
Press the center arrow to move between
auto and manual mode. Pump must be
switched off, then on when changing
mode to manual or pump will not start.
LDP Override
This position prevents a low-discharge pressure
fault from shutting down the pump station. Use the
LPD OVERRIDE “Y” position during the initial pipe
filling and when restarting the system from a de-
pressurized condition in MANUAL or AUTO mode.
Access is gained to this item by pressing the
“Manu” button, accessing the menu then selecting
“Safeties”.
Reset Control (F5)
This control allows the operator to clear (Reset)
any faults within the system once the cause of the
fault has been cleared.
The safety in effect will be shown in the lower
“Status” portion of the screen. You will also be
instructed to press F5 to reset the fault.
Resetting Faults
Faults must be reset by the reset control.
Pressing the reset control clears all fault counters.
If the fault lamp/message does not go out after
resetting, the cause of the fault is still present and
must be resolved before normal operation can
continue.