Eaton POWERWARE Plus 18, Руководство пользователя

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and Maintenance
NOTE
The diagrams are provided for use to
determine
in
the UPS. The NO diagrams are to be used
in
conjunction with the Alarm Informations Table after the
diagrams.
7.1 RECTIFIER TROUBLESHOOTING
When
removing and logic boani, ensure jumpers are in the
Ensure is in
for the of
7.1.1 Power Test
power supply diagnostics for
unit. power supply derives power from AC inputs (measured at
input to the bridge) and three regulated voltages; VDC, VDC,
-15 VDC. provides protection to the Power Supply board
provides for VDC, overcurrent
protection for and provides overcurrent protection for -15 The
voltages are derived on the Power Supply Board
Refer to figure 7-l.
Measure following power supply voltages on
l
VDC pins 3 (Control LVDO) aod pin 5 (Control Power
Supply Return)
l
.
l
If any of the voltages are not present, replace the Power Supply
Verify Open Cell voltage is 240 VDC on and TB1-6
Battery voltage is 270 VDC. Measure 420 VDC voltage on El (+) and
If no voltage, or voltage is replace