Service manual

990-1008, Revision 1, 4/9915
6.2 Smart-UPS DP does not start. Mains connected and start-up sequence is performed.
Smart-UPS DP is open.
IS TEMP
SWITCH ON HEAT
SINK IN PU
MOUNTED AND
OKAY?
START
ARE FANS
OPERATING?
IS SIGNAL CABLE
BETWEEN
TRANSFORMER AND
UPS MOUNTED?
IS ISOLATION
TRANSFORMER
MOUNTED?
VOLTAGE ON
FAN?
MOUNT CABLE
CORRECT
FAULT
IS JUMPER
MOUNTED ON
REAR SIDE OF
UPS?
FAULT IN
CONTROLLER
CHANGE CABLE
CORRECT
FAULT
IS TEMP SWITCH
IN TRANSFORMER
OKAY?
IS CABLE
OKAY?
FAULT IN PSU.
CHECK FUSES
ON MEAS. &
SUPPLY AND
ON PIF
CHANGE
FAN
MOUNT
CABLE
CHANGE
DISPLAY AND/
OR CABLE
END
YES
DOES ON/OFF
BUTTON WORK?
SIGNAL ON
CONTROLLER?
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
NO
NO
NO
NO