Lorentz PS Série Manuel D'installation Et De Fonctionnement page 64

62 Operating the Pump
Status Description
ƒ SYSTEM (green) – The controller is switched on and
power is available. In low-power conditions, the light
may show even if there is not enough power to run
the pump.
ƒ PUMP ON (green) – Pump is turning. The sequence of
flashing indicates pump speed (RPM). RPM can be read
off by the flashing sequence of the Pump ON LED:
LED On
1 flash
2 flashes
3 flashes
4 flashes
5 flashes
If the PUMP is OVERLOADED, green changes to red.
ƒ PUMP ON (red) – pump overload. System shutoff due
to overload, e.g. a blocked motor or pump. Overload
detection requires at least 250 W output of the PV
generator. The controller will attempt three starts before
shutting down the system. To restart, a reset with the
POWER switch is necessary. Flashing indicates that the
controller's thermal protection was triggered due to a
too high temperature. The controller will automatically
restart after cooling down.
ƒ SOURCE LOW (red) – The water source has dropped
below the level of the low-water probe or the water
sensor has detected air in the suction pipe. After the
water level recovers or the suction pipe has been re-
filled with water, the pump will restart after a delay of
20 minutes. Flashing indicates that the controller has
stopped due to a "SOURCE LOW" incident detected
earlier. The number of flashes indicates the number
of incidents. Toggle the ON/OFF switch to reset this
RPM indicator.
ƒ TANK FULL (red) – The pump is turned off by action
> 900
of the remote float switch (or pressure switch or
> 1200 manual switch, whichever is wired to the remote float
switch terminals).
> 1600
> 2000 PS150 to PS1800 only
ƒ BATTERY LOW (tank light flashes)
> 2400
The measured battery voltage fell to a specific
> 2800 threshold and has not yet recovered to the nominal
battery voltage. Battery system voltage and nominal
voltage are detected automatically. The voltage
thresholds for "BATTERY LOW" indication are given in
the table below:
BATTERY LOW Nominal battery
threshold in V
11
22
44
88
voltage in V
12
24
48
96