KC3 PV Charge Controller Instruction Manual
5
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Indication
All data displayed such as: Working Mode, Switch Status, Input DC Voltage of Solar Modules,
Input DC Current of Solar Modules, Input Power of Solar Modules, Battery Voltage, Loads
Current, Current Time, Battery Temperature, which will be very easy to check the status of the
controllers.
See details in 5.1.
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Setting
4 buttons for operations and settings according to different conditions.
See details in 5.2
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Indication of working status
6 LEDs for Indication: 2 for working status indication, 2 for charging status indication, 2 for loads
status indication. See details in “Indicated LEDs”.
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Protection and Alarm
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Overcharge Protection
KC3 controls pv modules when the Charging Voltage of the batteries gets to the biggest but
allowable one, it keeps batteries safe from too high charging voltage.
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Overdischarge(Low volt) Protection
“Low volt” flashes when the batteries’ voltage is too low, it will stop flashing to turn to red if
voltage keeps down to the Protection Line, and loads will be disconnected at this same time to
keep batteries safe from Overdischarge. Protection stops when batteries enough charged, and
“Low volt” LED turns off.
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Overvoltage Protection
“Over volt” flashes when Terminal Voltage exceeds the one required, it will stop flashing to turn to
red if voltage keeps up to the Protection Line. And loads will be automatically disconnected at this
same time to keep loads safe from Overvoltage.
Protection stops when batteries get back to normal voltage, and “Over volt” LED turns off.
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Batteries Reverse Polarity Protection
Fuse blows to protect batteries when Reverse Polarity of batteries.
It can be back to work after user corrects the connections and renews the fuse.
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Modules Reverse Polarity Protection
Modules can be back to work after connections corrected.
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Overload Protection