S4K2UC SEriES USEr MAnUAl |
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8.0 troubleshooting
This section indicates various UPS symptoms a user may encounter and troubleshooting steps in the event the UPS develops
a problem. Use the following information to determine whether external factors caused the problem and how to remedy the
situation.
8.1 UPS Symptoms
The following symptoms indicate the S4K2UC is malfunctioning:
♦
The relative indicators will illuminate, indicating the UPS detected a problem
♦
An alarm will sound, indicating that the UPS requires attention
8.1.1 Indicators
In addition to the fault indicator being illuminated, one or more of LED segments of Battery Level indicator will also be
illuminated to provide a diagnostic aid to the user, as shown in Figure 31. The descriptions are listed in Table 8.
A
B
C
D
E
Figure 31: Battery Level indicator
Table 8: Indicator Descriptions
Indicator
Diagnosis
Audible Alarm
A–E
on bypass from output overload
Half-second beep every half second
A
on bypass due to overtemperature condition
1-second beep every 4 seconds
B
on bypass due to dc bus overvoltage
1-second beep every 4 seconds
C
on bypass due to dc/dc power supply failure
1-second beep every 4 seconds
D
pfC failure
1-second beep every 4 seconds
E
on bypass due to inverter failure
1-second beep every 4 seconds
A & C
UpS failed battery test
2-second beep every 60 seconds
C & E
UpS shutdown by command from communication (USB port or intelliSlot port) no audible alarm
A & B
UpS failure (includes dual-fan failure, single-fan failure under certain condi-
tions, and battery charger failure)
Continuous alarm
Battery indicator flashing
internal battery source not available. Check battery connection, power down
and reboot the UpS.
Continuous alarm
Ac Input indicator flashing
line-to-neutral reversal in the ac input power supply or a loss of proper
grounding for the UpS. UpS cannot start in standby status.
Continuous alarm
Bypass indicator flashing
Utility power voltage or frequency is our of tolerance; bypass is unavailable
n/a
note: A–E indicators are shown in figure 23
