Low Voltage Disconnection:
(LVD) of the batteries is provided to prevent deep
discharge of the battery. Automatic reconnection occurs when battery voltage
recovers. Battery Current Drain is less than 2mA.
Trickle Charge:
Trickle Charge to the battery is always present. When the battery
voltage is below the LVD (Low voltage disconnect) reconnect voltage (<10V and
the mains power or auxiliary power is available, the battery will be charging at
0.8A. When the battery voltage is sufficient (>10.5V for first power up, 11.5V and
11.7V for subsequent reconnection with and without mains respectively) the LVD
will connect the battery and allow float charging at 10A/15A (ST20III/ST35III).
The Trickle Charge feature is provided to allow “very” flat batteries to be charged
at a rate, which will extend their life.
Remote Battery Isolate Switch:
The STIII series power supplies allow for
connection to a remotely positioned switch that provides a manual disconnection
of the battery from the loads and the main charger. When the switch contacts are
closed, the battery will be isolated from the loads.
NOTE: When the battery is isolated from the loads using the battery isolate
switch it will NOT charge at the 10/15 A rate even if the mains is connected
to the power supply. In this condition it will ONLY charge at the Trickle
charge rate.
Front Panel Indicators:
The STIII series power supplies have 3 indicators
visible on the front fascia.
Mains(GREEN) – is illuminated when mains power is present.
Battery(ORANGE) – is illuminated when the battery is connected to the loads.
Fault(RED) – is illuminated when there is a fault with the power supply.
Battery fuse Blown1
Battery connected reverse polarity2
Shut down condition (UV and OT)3
Main PCB micro controller malfunction4
Notes
1.
Flashing 1s ON, 1s OFF.
2.
Solid ON.
3.
Flashing 1s ON, 1s OFF, with no battery connected the power supply
may be in hiccup mode which will cause the indication to flash with
random duty cycle and frequency.
4.
Fault Led= Solid On, All other leds = OFF, irrespective of actual mains or
LVD status.
Auxiliary Power Input:
The power supply terminal “Aux In +VE” provides an
alternative option for powering of the load and float charging of the batteries when
mains voltages are not present. This input is to be powered by a suitable +12V
system. (i.e. CAR). The voltage of the auxiliary power source should not exceed
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