© 2010 Magnum Energy, Inc.
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3.0 Setup
03 Charger Setup
03A AC Input Amps
- This selection ensures that the combined current
draw from the charger and the AC loads does not exceed the maximum input
current that is available. Whenever the utility or generator is connected to
the inverter (thru AC HOT 1), the current used to power the AC loads and to
charge the batteries is monitored. When the total current used to power the
AC loads and charge the batteries begins to approach the AC Input Amps
setting, the current that was used for charging the batteries will automati-
cally be reduced. This ensures the AC loads have all the available current
when needed.
Default setting:
Amps = 30 Amps
Where should I set AC Input Amps?
Set the AC Input Amps
setting to
match the current rating of the utility power or generator’s circuit breaker.
If using multiple AC sources (utility and generator) through an AC transfer
switch, adjust this setting to the smaller AC breaker size. This setting is very
dependent on the stability of the AC source. If using a generator, factors
such as altitude and output voltage regulation may require a lower setting
than the generator’s breaker size. For best performance, lower this setting
to 1/3 its rated capacity and gradually increase while ensuring the voltage
level stays above the 03D VAC Dropout
setting.
CAUTION:
The AC Input Amps setting does not limit the current to
the inverter loads. If the current from the loads on the output of the
inverter are greater than the circuit breaker rating on the incoming
AC source, you may experience nuisance tripping on this breaker.
Info:
This setting will control the input current differently depend-
ing on the inverter/charger model and AC input wiring con
fi
guration
selected for your particular model. ME, MS and RD models have 2 AC
inputs, HOT IN 1 and HOT IN 2. AC Input Amps is only monitored on
HOT IN 1 on these models when wired as dual-in/dual-out con
fi
gura-
tion. On these models, if single-in/single-out con
fi
guration is selected
and HOT IN 1 and HOT IN 2 are jumped together, then you should set
the AC Input Amps to 1/2 the input breaker size, as 1/2 the current
will pass through HOT IN 1 and HOT IN 2 simultaneously.
If MS-AE or MS-PAE models are used, these models have HOT IN 1
and HOT IN 2 and the current on
both
inputs are monitored. Set the
AC Input Amps to match the input breaker size on these models.
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