AIMS Power Global LF Series, Руководство пользователя

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In order to make the inverter accept dirty power from a generator, put SW2 to position “1”, the inverter will
bypass an AC input with a wider voltage and frequency (40-70Hz for 50Hz/60Hz). The AC charger will
also work in a wider voltage and frequency range (42-68Hz for 50Hz/60Hz).
As mentioned, this will avoid frequent switching between battery and generator, but the low-quality power
may affect some sensitive loads. The pros and cons should be considered when dealing with sensitive loads.
NOTE: This is for bypass only! The charger has a different voltage range and may not operate at full rated
current. Refer to Section 2.5.2 AC Charger.
Power Saver Override ON/OFF (SW3)
The factory default for SW3 is Position 0. Position 1 will allow the Power Save feature of the inverter to
detect a load for 250ms every 3 seconds. If a load is detected, the inverter will output AC Power. If SW3 is
moved to Position 0. This will prevent the sense pulse from being sent out, even if inverter is in Power Save
mode via Main Power switch. No power will be output unless Shore Power input is present. Only then will
the battery charger and AC throughput operate when SW3 is in Position 0.
Frequency Switch (SW4):
The output frequency of the inverter can be set at either 50Hz or 60Hz by SW4. 50Hz most common in
Europe and Africa.
AC/Battery Priority (SW5):
The inverter charger is designed with AC priority as default. This means, when AC input is present, the
battery will charge first, and the inverter will transfer the input AC to power the load. Only when the AC
input is stable for a continuous period of 15 days will the inverter start a battery inverting cycle to protect
the battery. After 1 normal charging cycle AC throughput will be restored.
The AC Priority and Battery Priority switch is SW5. When you choose battery priority, the inverter will
invert from battery first and then AC input when battery voltage drops. Only when the battery voltage
reaches the low voltage alarm point (10.5V for 12V,21Vdc for 24Vdc, 42Vdc for 48Vdc) will the inverter
transfer to AC Input, charge battery, and switch back to battery when the battery is fully charged. This
function is most common for wind/solar systems using utility power as back up.
Note: In battery priority mode, when qualified AC inputs for the first time and the battery voltage is below 12.5Vdc (12.5Vdc for
12Vdc, 25Vdc for 24Vdc, 51Vdc for 48Vdc, the inverter will go into battery priority mode only after a cycle of bulk charging and
absorb charging is finished. The inverter will not go into float charging mode.
2.5.12 Auto Generator Start
BEFORE YOU USE A GENERATOR, MAKE SURE IT IS SIZED TO HANDLE THE INVERTER.
To guarantee the best performance of the built in AC charger and when the AC input is from a generator,
the standby generator should be at least 150% higher capacity than the inverter.
Operating with an under-rated generator or generator with unqualified wave form may cause premature
failure which is not covered under warranty. Example: If you are using a 2000 watt inverter charger, your
generator must be 3000 watts or larger. If you are using a 3000 watt inverter charger, your generator must be
4500 watt or larger, and so on.
The inverter is able to start up a generator when battery voltage drops. When the inverter goes into low
battery alarm, it can send a signal to start a generator and turn the generator off after battery charging is
completed. The auto gen start feature will only work with generators that have an automatic starting
function. The generator must have start and stop controls [an electric starter and electric choke (for gasoline
units)], and the safety sensors to be able to start and stop automatically. There is an open/close relay that
will short circuit the positive and negative cables from a generator start control. The input DC voltage can
vary, but the max current the relay can carry is 16 amps. The Auto Gen Start terminal pins are not polarized.
These two pins can also be used as dry contacts to send out “Low Battery Voltage” signal to an external
alarm device.
Use 18 AWG speaker wire for this application.