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2.3
The ground terminal
In order to complete the grounding circuit of your AC system, the inverter's housing must be
connected to ground (chassis) by using the dedicated ground screw. See the figure below for the
location of the ground screw. Use a wire gauge of at least 2.5mm
2.4
Battery requirements
Parameter
recommended input voltage range
minimum recommended battery capacity
DC input current at Pnom
1)
this capacity can be halved for short time inverter usage, not requiring more than nominal output power
The inverter shuts down when the battery voltage is below approx. 10.5V (21V for 1400i-24 and
41V for the 1500i-48) and above approx. 16V (31V for 1400i-24 and 60V for the 1500i-48). When
the battery voltage is too low or too high, first the inverter will generate one beep per second to
inform you about a possible inverter shut down. This acoustical message will start at a battery
voltage which is close to the shutdown voltage.
The inverter also shuts down when a too high input ripple voltage is detected, reducing the
inverter's lifetime. High input ripple voltage values, are mostly caused by using too small batteries
and/or extending the DC cables too much or with an insufficient wire gauge. When the inverter
shuts down due to a too high input ripple voltage, indicated by four blinks per second, it must be
restarted manually.
THE ALESSI 1000i-12 MUST BE CONNECTED ONLY TO A 12V BATTERY
SYSTEM.
The inverter will not operate from a 6V battery and will be damaged when
connected to battery voltages higher than 16V.
THE ALESSI 1400i-24 MUST BE CONNECTED ONLY TO A 24V BATTERY
SYSTEM.
The inverter will not operate from a 12V battery and will be damaged when
connected to battery voltages higher than 31V.
CAUTION
THE ALESSI 1500i-48 MUST BE CONNECTED ONLY TO A 48V BATTERY
SYSTEM.
The inverter will not operate from lower battery voltages than 41V and will be
damaged when connected to battery voltages higher than 62V.
The Alessi-Serie
Pure Sine Wave Inverters
12 VDC BATTERY INPUT
-
+
chassis ground
screw
1)
- 6 -
2
(AWG13) for the ground wire.
AL1000i-12
AL1400i-24
11-14.4VDC
22-29VDC
300Ah
180Ah
88A
48A
AL1500i-48
42-58VDC
120Ah
23A
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