Samlex America SMC-20 - Manuel (Page 11)

10 | SAMLEX AMERICA INC. SAMLEX AMERICA INC. | 11
The solar charge controller immediately begins operation once the battery is connected
or the external fuse is inserted.
The displays of the solar charge controller show the current operating mode. User
intervention or user settings are not required.
PRotection FUnctionS
The following integrated protection functions of the solar charge controller ensure that
the battery is handled as gently as possible.
The following protection functions are part of the basic function of the controller:
- overcharge protection
- Deep discharge protection
- battery undervoltage protection
- Solar module reverse current protection
The following installation faults do not damage the controller. After correcting the
fault, the device will continue to operate correctly:
- Protection from solar module short circuits / incorrect solar module polarity
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- Protection from short circuits at the load output or excessive load current
- Protection from battery connection with incorrect polarity
- Protection from solar module overcurrent
- Protection from device overtemperature
- Protection from overvoltage at the load output
- Protection from the wrong connection sequence
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The reverse-polarity protection of the solar module in a 24V system is only provided
up to an open-circuit module voltage of 36V.
SeCtIOn 5 | Maintenance
The solar charge controller is maintenance-free.
All components of the PV system must be checked at least annually, according to the
specifications of the respective manufacturers.
- 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.
SeCtIOn 4 | Operation