
Chapt
er 7 Operator Control and Display Panel
Shield M10U user manual
49
220.2
220.0
220.1
Fig.7- 12: output and bypass waveform
7.4 UPS Event Log
The follow
table.7-8
gives the complete list of all the UPS events displayed by history record window and current record
window.
Table.7- 8: UPS Event List
NO.
UPS events
Description
1
Fault Clear
Manually clear fault
2
Log Clear
Manually clear History log
3
Load On UPS
Inverter feeds load
4
Load On Bypass
Bypass feeds load
5
No Load
No load
6
Battery Boost
Charger is working in boost charging mode
7
Battery Float
Charger is working in float charging mode
8
Battery Discharge
Battery is discharging
9
Battery Connected
Battery is connected already
10
Battery
Not
Connected
Battery is not yet connected.
11
Maintenance
CB
Closed
Manual maintenance breaker is closed
12
Maintenance CB Open
Manual maintenance breaker is opened
13
EPO
Emergency Power Off
14
Module On Less
Available power module capacity is less then the load capacity. Please reduce
the load capacity or add extra power module to make sure that the UPS capacity
is big enough.
15
Generator Input
Generator is connected and a signal is sent to the UPS.
16
Utility Abnormal
Utility (Grid) is abnormal. Mains voltage or frequency exceeds the upper or lower
limit and results in rectifier shutdown. Check the input phase voltage of rectifier.
17
Bypass
Sequence
Error
Bypass voltage Sequence is reverse. Check if input power cables are connected
correctly.
18
Bypass Volt Abnormal
This alarm is triggered by an inverter software routine when the amplitude or
frequency of bypass voltage exceeds the limit. The alarm will automatically reset
if the bypass voltage becomes normal.
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