Morningstar TriStar TS-MPPT-30, Инструкция по установке и эксплуатации

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43 TriStar MPPT Operator’s Manual
4.5 Protections, Faults & Alarms
The TriStar MPPT protections and automatic recovery are important features that ensure the
safe operation of the system. Additionally, the TriStar MPPT features real-time self diagnostics
that report Fault and Alarm conditions as they occur.
Faults are events or conditions that require the TriStar MPPT to cease operation. A Fault usually
occurs when a limit such as voltage, current, or temperature has been surpassed. Fault condi-
tions are indicated with unique LED sequences and are also displayed on the TriStar Meter.
Alarms are events or conditions that may require the TriStar MPPT to modify operation. Alarms
are commonly used to alert the user that the controller is nearing a speci
fi c voltage, current, or
temperature limit. Alarm conditions are only displayed on the TriStar Meter.
Some basic fault conditions are reviewed below:
Protections
Solar Overload
The TriStar MPPT will limit battery current to the
Maximum Battery Current
rating. An over-sized
solar array will not operate at peak power. The solar array should be less than the TriStar MPPT
Nominal Maximum Input Power
rating for optimal performance. See section 8.0 for more informa-
tion.
Solar Short Circuit
The TriStar MPPT will disconnect the solar input if a short circuit is detected in the solar wiring.
Charging automatically resumes when the short is cleared. No LED indication.
Solar High Input Voltage
Solar input current will be limited as the array open circuit voltage approaches the 150 Volt maxi-
mum input voltage limit.
Very Low Battery Voltage
If battery discharges below ~7 Volts the controller will go into brownout and shut down. When
the battery voltage rises above the 8 Volt minimum operating voltage, the controller will restart.
Faults
Remote Temperature Sensor Failure (R+Y / G+Y)
If a fault in the RTS (such as a short circuit, open circuit, loose terminal) occurs after the RTS has
been working, the LED’s will indicate a failure. However, if the controller is restarted with a failed
RTS, the controller may not detect that the RTS is connected, and the LED’s will not indicate a
problem. A TriStar meter or the PC software can be used to determine if an RTS is detected and
working properly.