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28 User Guide Silcon DP300E Series 480V 120-160kVA
7OA0003 US rev. 03
Alarms
Possible alarm
Description Action
20. High temp. isolation
transformer
21. High temp. utility static
switch
22. High temp. bypass static
switch
23. High temperature main
inverter
24. High temperature delta
inverter
25. Low DC shutdown
26. Low DC warning
27. Mains is moment. out of
tolerance
28. Mains is out of tolerance
29. Mains freq. is out of
tolerance
30. Bypass is moment out of
tolerance
31. Bypass is out of tolerance
32. Bypass freq. is out of
tolerance
33. Output is moment. out of
tolerance
34. Output is out of tolerance
35. Output freq. is out of
tolerance
36. High battery temperature
37. Battery week
38. Battery defective
Temperature on isolation
input/output transformer to
high
Temperature on static input
switch too high
Temperature on static bypass
switch too high
Temperature on main inverter
too high
Temperature on delta inverter
too high
The battery has been
discharged to minimum
permissionable level
The battery is nearly
decharged
Short disturbances on the
utility supply (1 ms tran-
sients)
Utility input voltage r.m.s.
value outside limits
Utility input frequency outside
limits
Short disturbances on the
bypass voltage
Bypass input voltage outside
limit
Bypass input frequency
outside limits
Short disturbances on the
output voltages
(inrush current)
Output voltage outside limits
Output frequency outside
limits
To high battery ambient
temperature
Battery capacity below 75%
or battery MCCB switched off
Insufficient battery capacity
or battery MCCB switched off
Check fan, check for
airflow obstructions,
check for overload
As no. 20
As no. 20
As no. 20
As no. 20
Ensure battery
recharging
Save your data now
Power down equip-
ment
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If repetitive call for
assistance
Call for assistance
Call for assistance
Check system
ambient temp., check
fan, check for airflow
obstructions
Perform a battery
capacity test
Call for assistance
NOTE:
Utility = Mains