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3.2.2 LED Indicators/Alarms
LCD Display
– The LCD Display shows the output DC voltage and output DC amperage at all times. Charger
modes and different alarm conditions will be also be displayed if they should occur.
Current Limit (Red)
– The Current Limit LED will illuminate when the rectifier is operating in a current limit
condition (amperage greater than unit output rating).
AC On (Green)
– The AC ON LED will illuminate whenever AC voltage is present at the MSM input terminals. AC
ON LED will turn off when AC input is out of range (below 95 or above 270VAC).
Charger Fail (Red)
– The Charger Fail/Low Current LED will remain lit and the LCD display will read “CHARGER
FAIL” with the following charger conditions:
-
Charger is not able to regulate the output voltage.
-
AC input is out of range (below 95 or above 270VAC), LCD will also display “AC OUT OF RANGE”
-
DC output is turned off via ON/OFF Button on front panel, LCD display will read “DC OUTPUT OFF”.
-
Unit ambient temperature exceeds 70°C, LCD will also display “THEMAL SHUTDOWN”.
Low Current (Red)
– The Charger Fail/Low Current LED will illuminate and continue blinking when the DC
current is below 0.25 Amps.
Thermal Derating
– With Thermal derating feature enabled, “THERMAL PROTECTION - OUTPUT DERRATED TO
70%” will display on the LCD when the ambient temperature exceeds 50°C.
Thermal Shutdown
– “THERMAL SHUTDOWN” will display on the LCD and the unit output will shut off when
the ambient temperature exceeds 70°C.
