Vanner IQ12-2600, Руководство пользователя

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VANNER POWER GROUP VANNER POWER GROUP IQ SERIES IQ SERIES
IQ SERIES OWNERS MANUAL - 31 -
power becomes available. There is no 5 second time delay if the inverter is in the ‘Load Demand
Mode’ when input power becomes available.
Switch 6 on the Programming Switch allows the user to select either 90 AC input volts or 77 AC
input volts to be the Low AC Input Voltage switchover tolerance value. Set switch 6 to match the
quality of AC being supplied. HI (90 VAC) is generally used on more stable AC power
(Residential or Industrial Supplies). LOW (77VAC) is used with less stable AC power (motor
generator, solar, rural supplies).
For all IQC models, the factor that determines whether the unit is in ‘inverter mode’ or ‘battery
charger mode’ is the presence or absence of ‘in-tolerance’ input power. Whenever ‘in-tolerance’
input power becomes available the IQC automatically switches from inverter mode to charger
mode.
The transfer switch switches both hot and neutral. For safety purposes the inverter output neutral
(terminal #8) is connected to the inverter chassis ground only when the unit is in inverter mode.
This is a requirement of the National Electric Code for all systems of this type that neutral should
be connected to ground only at the source of AC power, which is the inverter when in inverter
mode. When an external AC input (shore power, generator) is available, the IQC Transfer Switch
system breaks the connection between neutral and inverter chassis ground. The neutral-to-
ground connection for passthrough power is then provided by the AC input source.
Figure 6 AC Power Transfer Switch