|
23
August 2020
|
Solar Stik
®
, Inc.
24VDC PRO-Verter 7000-120 AGS Operator Manual
Recommended Operation Environment (Location)
The PRO-Verter is designed for operation in extreme temperatures and dusty or wet environmental
conditions, but proper placement and care are necessary to mitigate against their effects.
Preferred operation locations are shaded, well ventilated, dry, and clean. If operated outdoors with
direct exposure to the elements, it is highly recommended that the case lid be closed and latched to
prevent water/particulate intrusion and prevent sun damage to the LCD at the User Interface.
Direct ground placement of any power management or energy storage component is generally not
recommended, but possible if no other option is available. If it is necessary, additional measures to
prevent water and dust intrusion should be taken.
PRO-Verter Operation Temperature
The function and efficiency of all electronic equipment is related to and dependent upon the
temperature at which it is operating. It performs optimally within a narrow temperature range and
less so as the temperature falls outside of that range.
The optimum operating temperature is defined as Standard Testing Conditions (STC) or 77 ºF (25
ºC). As the temperature of the PRO-Verter internal components increases above STC, they operate
less efficiently. At STC, the PRO-Verter will operate at 100% of its rated capacity in terms of
charging batteries and supporting AC loads via the inverter. As the temperature increases, within its
normal operating temperature range (-4° F to 140° F; -20° C to +60° C) but, above that STC “sweet
spot” PRO-Verter efficiency decreases. At the upper extent of the normal operating temperature
range, ~140 ºF (60° C), the PRO-Verter will operate at ~75% of its rated capacity. PRO-Verter
operating efficiency will continue to decrease above 140 ºF until the temperature of the internal
components exceeds 185ºF (85 ºC) at which point the inverter will automatically self-protect and
cease operation; the charger will automatically self protect at 224 ºF (71 ºC).
Overheating and Derating
The two (2) most common reasons for PRO-Verter overheating are high rates of power processing
and poor airflow internally. Excessive ambient temperatures and solar loading can also cause
elevated operating temperatures.
The PRO-Verter User Interface TECH menu reports two (2) function temperatures:
1. The “Transformer Temperature” is measured on the transformer itself. Temperature rises
as power processing increases, and power loss (derating) occurs as heat generated on the
transformer.
2. The “FET Temperature” is measured by a thermistor on the FET board.
The first indications of heat derating may be the retardation of DC charging current or the AC output.
Derating will steadily increase and ultimately cause the following faults:
• “
TFMR OVERTEMP
” - When the internal temperature of the transformer reaches 224 ºF (71 ºC)
