ABB HiPerGuard MV UPS User Manual page 62

62 H I P E R G U A R D M V U P S U S E R M A N U A L
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Figure 7.09: Active
Events page
Icon Description/Function
Indicates the number of active events (can be seen from any page)
Indicates an active fault
Indicates a warning
Indicates the total number of active events
Move to the next active events page
Return to the previous active events page
Return to the first page (latest event)
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Table 7.02: Active
Events page icons.
7.1.6.1 List of Warnings
ID Event
W5.4 System in Test mode
W5.12 System topology not selected
W5.24 DC bus voltage detected high
W5.25 DC bus voltage detected low
W5.30 String breaker opened
Energy Storage bus voltage high
W5.32
timed
Energy Storage bus voltage too low
W5.34
while running
W5.35 Auxiliary charger failed or disabled
DC system or group voltage mis-
W5.46
match
W5.48 DC bus system imbalance detected
Description
The System has been placed in Test Mode while it is running.
The topology of the UPS system has not been selected.
The averaged DC bus voltage in the system has risen to a
WARNING level.
The averaged DC bus voltage in the system has fallen to a
WARNING level.
One or more Energy Storage battery string circuit breakers
has been detected as OPENED.
The Energy Storage voltage has been detected as HIGH for a
specified period.
While the system is RUNNING the Energy Storage voltage has
been sensed as TOO LOW.
A failure of the auxiliary charger has been detected. This is de-
termined by detection of low voltage on Energy Storage bus
or by auxiliary charger fault feedback.
There is a measurement discrepancy in the DC bus voltage
measurements made at various points in the system.
The center point voltage of DC bus is compared with ground.
If this exceeds a preset limit, a warning is raised.