Samlexpower SEC-1212 Owner's Manual page 7

PROBLEM : The output voltage is 0 V or very low
PROBABLE CAUSE
Input voltage is very low
The unit is in current limit condition
due to overload caused by large reactive
loading or by the output being
short circuited
Unit is shut down due to over
temp. (SEC-1223)
PROBLEM : Output voltage drops as soon as the load is switched on
PROBABLE CAUSE
The unit is going into current
limit protection mode
SUGGESTED REMEDY
Check that the input voltage is 120VAC
Check the output terminals are not
shorted. Remove the load. If the output
voltage gets restored, the load is shorted
or is offering large reactive impedance.
Check that the fan has not failed or
the vent openings are not blocked
SUGGESTED REMEDY
Reduce the load current to less than the
current limit value. Motors, pumps,
compressors, relays, incandescent and
halogen lamps and large capacitors in
the input section of the DC devices draw
very high inrush or starting currents of
up to 10 times their normal operating
currents. Ensure that these inrush/
starting currents are below the current
limit value of the power supply.
6.