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F3 Series Charger Manual

FIGURE 3.4

LED Indicators on Charger Front Panel

AC ON

Indicates that AC power is being supplied to the charger.

BOOST

The charger is operating in the BOOST mode.

FLOAT

The charger is operating in the FLOAT mode.

AC FAIL

Indicates that AC power is not avail

able to the charger. Input AC is failed, or AC breaker is tripped.

CHGR FAIL

Indicates that the charger is failing to produce the output current required by the battery and load. When

the battery and load demand no current the failure alarm will not act

ivate.

In the event that the CHARGE FAIL and AC ON lights are illuminated simultaneously, then the charger

has failed. The probable causes of an alarm, in descending order of likelihood are:

a) A failure of AC power

b) A tripped AC breaker

c) The charg

er has malfunctioned

LOW DC

Indicates that DC voltage has dropped to approximately 8.5% below nominal battery voltage (e.g. 22

volts for a 24 volt system). Probable causes:

a) The AC power has failed, and the battery has become discharged

b) The charg

er has malfunctioned and the battery has become discharged

c) The battery is defective

There is a time delay in the low voltage alarm which prevents the alarm from activating until

approximately 30 seconds after the low voltage condition starts.

HIGH DC

Indicates that the charger’s output has exceeded a pre

-set threshold level (approximately 20% above

nominal battery voltage

e.g. 29 volts for a 24 volt system). If this alarm stays activated for any period of

time, the charger should be shut down and

serviced. The charger may have malfunctioned, or the alarm

card may be misadjusted. The alarm actives immediately upon high voltage condition, but stays activated

for approximately 30 seconds after the condition disappears.

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Sens F3 SERIES CASE SIZE 3A Istruzioni per gli Interventi Pagina 9