Samlex America SEC-1223 - Manual (Page 6)

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BATTERY CHARGING AND BATTERY BACK-UP
WARNING ! THESE UNITS ARE POWER SUPPLIES AND
NOT BATTERY CHARGERS. DO NOT CONNECT THESE UNITS DI-
RECTLY TO A BATTERY
These units should NOT BE DIRECTLY CONNECTED TO A BATTERY
for charging or for battery back-up. Battery charging and battery back-up
may be undertaken only when the battery is connected through suitable
external isolating diodes and charge limiting resistor. The isolating diode
will ensure that the battery does not back power the power supply. When
a battery is deeply discharged, it will initially draw a very large charging
current and thus, will force the power supply into current limit mode for
prolonged periods. This is harmful for the power supply. The charge
limiting resistor will limit the charging current, thereby, ensuring that the
maximum charging current is well below the current limit value of the
power supply. It is recommended that optional battery back-up
module BBM-1225 may be used to convert SEC-1212/SEC-1223 for
battery back-up application.
TROUBLESHOOTING - GENERAL
PROBLEM : Power ON/OFF switch does not illuminate when turned on.
PROBABLE CAUSE SUGGESTED REMEDY
No power in the AC outlet Check there is power in the outlet.
AC side fuse inside the power Replace the fuse inside the unit.
supply is blown See fuse ratings at page 11
PROBLEM : AC side fuse blows as soon as power is turned on.
PROBABLE CAUSE SUGGESTED REMEDY
Unit is defective Call technical support.
5.