Clary SP U-MPL - Manual (Page 8)

Page 8
SUMMARY OF INDICATORS AND CONTROLS
UPS FRONT PANEL
INPUT POWER SWITCH - This is system input AC power protection and interruption for
both hot and neutral lines. This circuit breaker is rated at 20A.
SYSTEM ON/OFF SWITCH - This is system input enable switch. This switch is used to
power down the system. This switch must be in the ON position in order to start the UPR.
LOAD LEDs - Four green L.E.D.s and one red OVERLOAD L.E.D. that illuminate to update
status of the amount of load the INVERTER is powering at the UPS system output. Each green
L.E.D. represents approximately 25% of full load. As more load is added to the UPS, the L.E.D.s
will sequentially turn "ON" until the red L.E.D. comes "ON". This indicates an OVERLOAD
situation and the system will discontinue operation shortly.
BATTERY LEDs - Four green L.E.D.s and one green LOW BATTERY L.E.D. that illuminate
to update status of the battery energy available during a power outage. Each green L.E.D.
represents approximately 20% of battery reserve power available. As battery discharge
continues, the L.E.D.s will sequentially turn "OFF" until the last L.E.D. starts to flash. This
indicates a LOW BATTERY situation and the system will discontinue operation shortly. Once
utility power is returned to the system, this bar graph will show an approximate battery state as it
reaches full charge. The top L.E.D. indicates charger on/off when unit running on AC. L.E.D. ON
Charger OFF, L.E.D. OFF Charger ON.
AC IN OK LED - A green L.E.D. that is illuminated when the AC input is within operating limits.
ON BATTERY LED - A red L.E.D. that is illuminated when the AC input is interrupted to the
power electronics either externally or internally from the microprocessor due to an out-of-range
situation. The output load is then supported entirely by battery energy through INVERTER
operation.
INVERTER LED - A green L.E.D. that illuminates when the INVERTER generator is operating.
COLD START SWITCH - This is a momentary, two position push button switch. If no AC
utility voltage is available, it may still be a requirement to initialize some equipment. When this
switch is pressed in for at least two seconds, the system will start up on battery power. The
SYSTEM ON/OFF Switch must be in the ON position for this function to operate. The green
L.E.D. above this switch will light only while the switch is held in.
COLD START LED - A green L.E.D. that illuminates when the cold start switch is pressed.
LOAD ON/OFF SWITCH - Push button switch that enables output circuits when turned ON,
disables output circuits when turned OFF.
BYPASS LED - A red L.E.D. above the LOAD ON/OFF SWITCH will light to indicate when the
system output is operating in the filtered, emergency BYPASS mode.
BATTERY TEST SWITCH - This is a momentary, two position push button switch. Battery
condition is vital to the UPS performance, particularly during a power outage. During normal
operation with inverter ON, load applied to the unit and the Battery Bar Graph showing the
battery at a full charge, this function switch may be used. By pressing this switch in for at least
two seconds, a battery acceptance diagnostic will be run by the internal microprocessor.