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position “1”, the inverter will bypass an AC input with a higher voltage and wider frequency (40Hz
plus for 50Hz/60Hz). Accordingly, the AC charger will also work in a higher voltage wider freq
range (43Hz plus for 50Hz/60Hz).
This will avoid frequent switches between battery and generator. But some sensitive loads will suffer
from the low quality power.
The pros and cons should be clearly realized.
Power Saver & Unit Off Charging:
Under the Battery Priority Mode (SW5 in position “1”), the inverter can be switched between two
modes: Power Saver Mode (SW3 in position “1”) and Unit Off Charging Mode (SW3 in position
“0”). The power Switch should be in “Power saver on” position all the time for using these functions.
In Power Saver Mode, the inverter is initially in standby mode and sends a pulse to detect the
presence of a load every 3 seconds. Each pulse lasts for 250ms. The inverter will remain in standby
mode until a load has been detected. Then it will wake up from standby mode and start to invert
electricity from the battery bank to supply the load. As this function is under Battery Priority, the
inverter will always prefer to invert electricity from battery first even there is a qualified AC input
present. Only when the battery voltage is lower than the low voltage alarm point, will the inverter
switch to AC input power to charge the battery and supply the load at the same time.
This Power Saver Mode can be changed to Unit Off Charging mode via SW3 by switching it to “0”
position. (SW5 still in “1”)
In Unit Off Charging mode, the inverter will stay in standby mode without sensing loads. It won’t
output any power even if a load is turned on or a qualified AC input is present. The inverter will not
perform any function and only stay idle in this mode, unless the battery voltage is low. Then it will
start charging the battery. This feature is ideally suitable for applications where energy conservation
is required. Charging will only be activated when required.
Applying the proper charge voltage is critical for achieving optimum battery performance and
longevity. The ideal charge voltage required by batteries changes with battery temperature.
The battery temperature sensor allows the charge controller to continuously adjust charge voltage
based on actual battery temperature.
Temperature compensation of charge voltage assures that the battery receives the proper charge
voltage as battery temperature varies.
The entire line are equipped with Battery Temperature Sensing for increased charging precision.
It sends precise information to the charger, which automatically adjusts voltage to help ensure full
battery charge depending on the ambient temperature of your battery installation.
When the battery voltage is over 40
℃
(104
℉
), it will reduce the charging voltage by 0.1Vdc with
every degree of temperature rise.
We recommend that you install Battery Temperature Sensors on all banks to protect your batteries
and to provide optimal charging of each bank.
The battery temperature sensor mounts on the side of a battery or any other location where the
precise temperature of battery can be detected such as battery mounting racks.
The following table describes approximately how much the voltage may vary depending on the
temperature of the batteries.
Содержание UP12/2000SD-CG
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