amberroot 0B2 사용자 설명서 - 페이지 11
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When Solar is available AND Batteries are nearly completely charged (Voltage of
13.5V/27V for at least 5 minutes), the GRID based charging from UPS Inverter is
cut off and Loads and Charging to the batteries are supplied from Solar PV.
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When Solar Power is unavailable OR the Battery Voltage drops to 12.5V/25V and
remains in this state for at least 5 minutes, the Mains Input to the Inverter is
switched on again
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If the Battery is seen to be discharging too fast, the Mains Input to the Inverter is
switched on again
REhub ensures that the NET current delivered to the batteries at all times is 10% to 15%
of the Battery Ah. The unit is by default configured to work with 150Ah batteries. Note
that when Loads are being serviced from Solar and Batteries, the Solar charger could be
supplying the current required by the Loads. Yet the net Current allowed into the batteries
will always be lesser than or equal to 15% of Battery Ah. The battery Ah setting is a
Factory setting. You can change this value through the data port by purchasing a Data
cable 'Amberlink' to access the data base of the system. The configuration using Amberlink
is given in a separate manual available with Amberlink.
7.2 Battery charging stages
REhub follows a three-stage charging from the Solar PV.
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Bulk mode: As much current as available and permissible for the batteries is
delivered to the batteries
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Float mode: The batteries are charged. Only as much current as need to keep the
batteries charged completely is delivered.Absorb Mode: The unit keeps the battery
Voltage constant till the Current absorbed by the battery is lesser than 1A.
Solar Power output is based on the
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Availability of Solar Power – depends on Solar irradiance.
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Battery state of charge – When Batteries are in Bulk mode, the Solar charger limits
the Current to the batteries to a maximum of 18A. In Absorb or Float mode, the
batteries determine how much current is allowed.
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State of Load. If the Batteries are full and Load is limited the Solar power has
nowhere to go and will therefore be limited. When loads go up, Solar power ramps
up (Subject to availability) and when Solar power alone cannot service the loads,
battery is discharged to service the loads along with Solar PV.
8 Error conditions
When an error occurs, REhub displays the error on the screen. Some errors are self-corrected and
once the error condition disappears, REhub resumes operation. Some errors may be system errors
that require correction in the system for recovery. In case you need support, please capture an
image of the error screen (and the next screen) for easier debugging.
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following factors
Ver 7.0
User Manual