10 | SAMLEX AMERICA INC. SAMLEX AMERICA INC. | 11
SECTION 4 | Installation & Operation
PROTECTIONS
Solar Array Short Circuit - If solar array short circuit occurs, charging will stop. Charging
will resume automatically once the short circuit is removed.
Overload On Load Terminals - If the load current of 12V load connected to the load
terminals exceeds 10.5A, the controller will disconnect the load. Clear overloading, then
press the Load ON/OFF button (4).
Load Short Circuit - Fully protected against load wiring short-circuit ≥2 times rated dis-
charge current of 10A. After one automatic load reconnect attempt, the fault must be
cleared by restarting the controller or pressing the Load ON/OFF Button (4).
Solar Array Reverse Polarity - Fully protected against Solar Array reverse polarity, no
damage to the controller will result. Correct the polarity to resume normal operation.
Battery Reverse Polarity - Fully protected against battery reverse polarity, no damage to
the controller will result. Correct the polarity to resume normal operation.
Battery Voltage Error - If battery voltage does not match controller operating voltage,
controller will stop working. After correcting the voltage, the failure can be eliminated
by pushing the Load ON/OFF Button (4).
Damaged Temperature Sensor - If the temperature sensor is short-circuited or damaged,
the controller will be charging or discharging at the default temperature of 25°C to
prevent damage to the battery from overcharging or over discharging.
Overheating Protection - If the temperature of the controller heat sink exceeds 85°C,
the controller will stop charging and discharging. When the temperature drops to be-
low 75°C, the controller will resume operation.
High Voltage Transients - Solar Array is protected against smaller high voltage tran-
sients. In lightning prone areas, additional external lighting protection is recom-
mended.
Note: The controller has daily automatic fault recovery function which will reduce
manual operation and can intelligently eliminate faults not caused by hardware failure.
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