CWT Compact S2 Installation & Maintenance Manual

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Navigation: Product description > Power supply

Battery charging by solar power

A solar powered terminal has no battery charger. Instead, the solar panel charges the battery via the CPU board and a cable between the CPU board and the battery. The CPU board measures the charging current and if the charging voltage exceeds 18 V a fuse will blow.

The result of the measured charging current is sent to WebOffice. A warning event will be generated if the current drops below the warning level and the terminal will be set in error state if the current drops below the error level. A restore event will be generated when the current reaches the recovery level.

Reference:
See CWT Software Configuration Handbook for more information about this.

Figure 25, CWT Compact solar panel example