Samlex America SEC-1223 - Manual (Page 7)

PROBLEM : The output voltage is 0 V or very low
PROBABLE CAUSE SUGGESTED REMEDY
Input voltage is very low Check that the input voltage is 120VAC
The unit is in current limit condition Check the output terminals are not
due to overload caused by large reactive shorted. Remove the load. If the output
loading or by the output being voltage gets restored, the load is shorted
short circuited or is offering large reactive impedance.
Unit is shut down due to over Check that the fan has not failed or
temp. (SEC-1223) the vent openings are not blocked
PROBLEM : Output voltage drops as soon as the load is switched on
PROBABLE CAUSE SUGGESTED REMEDY
The unit is going into current
limit protection mode 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.