Protections, Troubleshooting & Maintenance; Protections; Troubleshooting - Epsolar eTracer ET4415BND Operation Manual

5 Protections, Troubleshooting & Maintenance

5.1 Protections

·PV Short Circuit
When PV short circuit occurs, the controller will stop charging. Clear it to resume
normal operation.
·PV Over Voltage
If PV voltage is larger than maximum input open voltage 150V, PV will remain
disconnected and warning until the voltage falls safely below 145V. PV voltage cannot
be too high, otherwise it may damage the controller, please verify the PV parameter.
·PV Over Current
The eTracer-BND controller will limit battery current to the Maximum Battrery
Current rating. An over-sized solar array will not operate at peak power.
·PV or/and Battery Polarity Reversed
Fully protection against PV or/and Battery reverse polarity, no damage to the controller
will result. Correct the miswire to resume normal operation.
·Over Temperature Protection
If the temperature of the controller heat sinks exceeds 85℃, the controller will
automatically start the overheating protection and recover below 75℃.
NOTE: Faults will be cleared every day, so the faults which aren't caused
by hardware can be solved intelligently.

5.2 Troubleshooting


Charging LED indicator off during daytime when sunshine falls on solar modules
properly
Solution: Confirm that PV and battery wire connections are correct and tight.

Battery LED indicator green fast blink and LCD displaying ‗OVD'
Probable Cause: Battery voltage is larger than over voltage disconnect voltage (OVD).
Solution: Check if battery voltage too high, and disconnect solar modules.
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