Table of Contents
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Charging Curve
Bulk: This is the first charging stage where the battery at low charge stage, typically 10%, receives
the majority of its charge. During this stage the battery brought to about 95% of its charger getting
100% of the available solar power.
Pulse (Maintenance): At the end of bulk stage, typically when the battery reach 14.4 Volts, a
maintenance mode starts where the battery voltage can float between an high and low value fixed by
the controller. These values are temperature compensated in order to keep the battery at 100%
charge stage in any condition.
Protection functions
Overcharge protection
Deep discharge protection
Battery undervoltage protection
Solar panel reverse current protection
The following installation faults do not destroy the controller. After correcting fault, the device will
continue to operate correctly:
Overcharge protection
Deep discharge protection
Reverse polarity protection of load, panel and battery
Automatic electronic fuse
Short circuit protection of load and panel
Overvoltage protection at panel input
Open circuit protection without battery
Reverse current protection at night
Overload protection
Battery overvoltage shutdown
Maintenance
The controller is maintenance-free. We strong suggest that all components of the PV system must
be checked at least annually,
Ensure adequate ventilation of the cooling element
Check the cable strain relief
Check that all cable connections are secure
Tighten screws if necessary
Terminal corrosion
5
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