Neptune 13458-000, Руководство по установке и обслуживанию

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When the no-sun availability period exceeds five days, the
system disconnects the Gateway unit from the battery to
prevent the battery from being discharged to the extreme. This
happens when the battery voltage drops to 11.5 V, which is
approximately 85% depth of discharge (DOD).
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Upon return of sunlight availability, the system recharges the
battery and automatically reconnects the Gateway when the
battery voltage reaches 12.6 V. This does not happen
immediately, because it must first allow the battery to reach a
50% state of charge (SOC) to ensure that the system does not
cycle on and off repeatedly in a short time frame. Therefore,
battery recharge can take one or more days, depending on the
time of year and size of the system.
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The system voltage fluctuates throughout the year depending
on outside air temperature. In cold weather, the system voltage
can rise to 16 VDC (12 V battery); and in summer, it usually is
13.5 VDC (12 V battery). The range varies with specific
controller type and battery configuration; however, this stated
fluctuation can usually be expected. The load output tracks the
battery voltage.
Troubleshooting the Solar Power System
The following table shows some of the problems you could
experience with the solar power system.
Problem Probable Cause Recommended Action
No Charging
Power
Overload solar/load Verify that the load is not exceeding the system
capability.
High temperature
disconnect Allow the controller to cool down, and then verify
continued operation.
Reverse polarity Configure the wiring terminations again to restore
operation.
Battery select fault Verify that the jumper settings are correct for the system
configuration.
Solar panel is shaded Confirm that the solar panel angle and direction are
correct. Make sure there is no shade.
Table 14 – Solar Power System Troubleshooting
82 R900 Gateway Installation and Maintenance Guide
Appendix A Solar Power Information