SECTION III
Operation
Page 3.16
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3.6 UPS Operating Procedures (continued)
3.6.2 Alarm Identity/History (continued)
Table 3-2
Screen Message
Description
Corrective Action
inp bkr open
Input Circuit Breaker open
Follow System Startup procedure to
close Input Circ. Brkr.
inp bkr clsd*
Input Circuit Breaker closed
Verifies that Input Circuit Brkr. is closed
bat bkr open
Battery (DC Disconnect) switch
open
Follow System Startup procedure to
close Battery (DC Disconnect) switch
bat bkr clsd*
Battery (DC Disconnect) switch
closed
Verifies that Battery (DC Disconnect)
switch is closed
inp vlt high
Input voltage too high
Verify correct UPS inputvoltage.
Decrease if necessary.
inp vlt low
Input voltage too low
Verify correct UPS input voltage.
Increase if necessary.
inp vlt norm*
Input voltage normal
No action required
inp freq hi
‘
Input frequency too high
Verify correct UPS input frequency.
inp freq low
‘
Input frequency too low
Verify correct UPS input frequency.
inp frq norm*
Input frequency normal
No action required
inp cur high
Input current too high
Reduce load on UPS output.
inp cur imbl
Input current out of balance
Verify correct UPS input volt-age and
current.
inp cur normA
Input current normal
No action required
dc volt high
DC (battery) voltage
too high
Verify correct battery voltage. Decrease
if necessary.
dc volt low
DC (battery) voltage
too low
UPS is operating off battery.
