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The
LOW DC V
indicator will light if the DC voltage drops below the specified voltage threshold of the alarm for
longer than 5 seconds. This is usually due to an AC Failure, or the charger is overloaded into deep-current limit.
It could also be caused by maladjustments of the float/equalize potentiometers, or in rare cases by a failure of
an internal charger component. See Section 3.5.1
CUSTOMER CALIBRATION
for information on viewing and
adjusting the threshold voltage.
The
HIGH DC V
indicator will light if the output DC voltage rises above the specified voltage threshold of the
alarm for longer than 5 seconds. This is usually caused by maladjustments of the float/equalize potentiometers,
or in rare cases by a failure of an internal charger component. See Section 3.5.1
CUSTOMER CALIBRATION
for
information on viewing and adjusting the threshold voltage.
The
OVERLOAD/CURRENT LIMIT
indicator will light if the DC current exceeds 110% of the charger’s rated
output current. This is usually due to a failure in the load. This value is factory set and cannot be changed by
the customer.
The
BATT END OF DISCHARGE
indicator will light if the voltage drops below the specified voltage threshold
of the alarm for longer than 5 seconds. This alarm indicates when the charger has been off for an extended
period of time and the loads have fully discharged the battery’s capacity. This is usually due to an extended AC
Failure, but could also be caused by an unrepaired failure of an internal charger component or maladjustments
of the float/equalize potentiometers. If the battery discharge alarm activates it is recommended to remove the
load from the battery to prevent irreversible damage. See Section 3.5.1
CUSTOMER CALIBRATION
for
information on viewing and adjusting the threshold value.
The
POS GROUND
indicator will light if any current between the positive terminal of the battery and earth
ground is measured. A positive ground alarm would signify that the positive terminal of a floating battery has
become grounded. If the charger has ground detection disabled this alarm will not function. See Section 2.8 for
information on enabling/disabling ground detection.
The
NEG GROUND
indicator will light if any current between the negative terminal of the battery and earth
ground is measured. A negative ground alarm would signify that the negative terminal of a floating battery has
become grounded. If the charger has ground detection disabled this alarm will not function. See Section 2.8 for
information on enabling/disabling ground detection.
The
HIGH DC V SHUT DOWN
indicator will light if the output DC voltage of the charger rises above the alarm
threshold for longer than 20 seconds. This is usually due to the failure of an internal charger component, but
could also be the result of maladjustments of the float/equalize potentiometers. If the high DC voltage shut
down alarm activates the DC output of the charger shuts off the charger to prevent irreversible damage to the
battery. See Section 3.5.1
CUSTOMER CALIBRATION
for information on viewing and adjusting the threshold
value.
The
LOW DC CURRENT
indicator will light if the output DC voltage of the charger has dropped below the
alarm threshold for longer than 5 seconds. This is usually caused by the load (if applicable) being disconnected
or going into a sleep state as well as the battery (if applicable) reaching a full charge. This could also be the
result of maladjustments of the float/equalize potentiometers. In rare cases this could be the result of certain
load sharing setups in which the other charger is set up to supply more power to the load. See Section 3.5.1
CUSTOMER CALIBRATION
for information on viewing and adjusting the threshold value.
NOTE: The Charger Failure alarm does not have an LED indicator on the front panel, if the alarm occurs it will
appear on the digital display. A charger failure alarm occurs when one of the following conditions are present:
Simultaneous Low DC Voltage and Low DC Current, or High Voltage Shutdown.
