WFCO WF-68100 Series, Руководство оператора

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Absorption Mode:
This is the default, or normal operation, providing an output of 13.6 volts DC. Because
RVs today are designed with converters sized to provide ample DC output power for all
DC loads in normal usage, an RV will rarely require anything other than Absorption
Mode.
When a WFCO converter is connected to a battery in Absorption Mode, power is
available for charging that battery whenever the converter output is greater than the
voltage level of the battery. If the battery is at or near fully charged, the current draw from
the converter to the battery may be very small. On the other hand, if the battery were to be
fully discharged, the current draw from the converter to the battery may be quite high.
Testing has shown that a completely discharged battery (11.9 VDC) connected to a WFCO
converter in Absorption Mode with an output of 13.6 VDC and having a 20 Amp lighting
load connected to the converter will charge the battery to its fully charged level of 12.7
VDC in fewer than three hours. Adding more DC loads will lessen the amount of current
available and will lengthen the time required to charge the battery. Batteries with damaged
cells will also require additional time to charge and may never reach a full charge voltage.
Because of the relationship between voltage and amperage, once the converter reaches its
maximum rated operating current level, any increase in the DC load will start to decrease
the voltage output level. When the output from the converter reaches a preset level, the
converter will go into Bulk Mode.
Bulk Mode:
This is designed to charge a significantly discharged battery in a little less time than
Absorption Mode. The microprocessor in WFCO converters continuously monitors the
DC line voltage. When the microprocessor detects the preset voltage level, it will boost the
converter voltage to 14.4 VDC. The increased voltage will help the battery charge faster,
while still providing power to the DC appliances in the RV.
Figure 2