Operating Indicators

Operating Indications

The Walkston Automated Pump has 20 LED’s arranged in a circle to indicate the operating mode as well an alarm indications.

When power is applied to the unit, all 20 LED’s will illuminate for one or two seconds while the uProcessor initialised itself.

Immediately the uProcessor is ready to operate, it will active the water pump while it determines if water is present at the pump. In this operating mode, 4 LED’s, all separated by 90 degrees, will rotate to indicate that the pump is operating correctly. If/when there is no water to pump, or all water has been pumped out, the 4 LED’s will stop rotating and remain stationary at that that particular location.

Alarm Indications

There are several alarm indicators as shown here - in each alarm condition, one 90 degree sector will illuminate is a steady state with 4 LED’s illumimated, as follows:

This sector indicates that there is an over-current situation, when the pump is trying to draw more current than it would in a normal operating condition. The likely cause is dirty/sandy or muddy water when the viscosity of the liquid is greater than clean water. A “reverse polarity” condition in the DC wiring will also cause this indication. A DC cable longer than 25 metres may also be the cause.

This is an installation issue that needs to be addressed.

SECTOR 01

This sector indicates an electronic fault when the voltage is out of the expected voltage range. This is a fault condition within the GWP Controller. In these cases, the GWP Controller should be returned to the supplier.

SECTOR 02

This sector indicates that the current sensor is out of range and is most likely an electronics fault within the GWP Controller. In these cases, the GWP Controller should be returned to the supplier.

SECTOR 03

This sector indicates an “Open Circuit” wiring condition and is most likely caused by an incorrect wiring issue, or the pump being not connected.

This is an installation issue, and the installer should check the DC wiring.

SECTOR 04