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Overow in Sump Tank
Fig 27: Meaning of Messages and Graphic on LCD
5. OPERATION
5.1 MANUAL and AUTO mode
Press the
key to switch between the Manual and Auto mode.
In Manual mode, the operator can run individual pumps by pressing
and pressing
cannot respond to the water level sensors and / or pressure switch to start / stop the
pumps.
In Auto mode, the controller will run / stop the pumps according to the signals from
the water level sensors and/or pressure switch. In this mode, if the pumps are running
and the operator wants to stop them, they have to switch to manual mode by pressing
the
key.
When input power is cut off from the controller and
reconnected, the controller will attempt to resume pump
operation after 10 seconds count down.
NOTE
5.2 Pump Operation
While the pump(s) is in operation, in case of occurrences like dry run, overload, under
voltage, and other failures, the controller will immediately stop the pump(s). The
controller will not restart the pump automatically until all the fault(s) have been cleared.
Once this is cleared, the controller will attempt to restart the pump after a built-in time
delay has elapsed.
If the pump is stalled, open phase etc., serious failures happen, operator must check the
pump and motor and repair.
5.3 Historical Fault Display
The controller displays the last five faults. To view this, ensure the pump(s) is not running.
Press the
key to switch to manual mode as per Fig 27. Press and hold the
and
key simultaneously until the controller make a sound. This will display the
current fault for Pump A, Fig 28.
/
keys to stop individual pumps. In this mode, the controller
4 18
/
keys
key
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