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12
Chapter 4 Use Of Controller
1. At any one of the system information screen, press the ENT key to enter the MAINMENU screen.
2. At any sub-menu of the MAINMENU screen, press the ESC key repeatedly to return to the higher-level menu, and
ultimately return to the MAINMENU screen.
3. Select the required sub-menu through pressing ▼. The selected sub-menu is shown by cursor, and press the ENT
key to enter the corresponding sub-menu.
4.3 Querying System Main Information
4.3.1 Querying Active Alarm
When a new alarm is generated, the LCD of the controller will prompt the active alarm screen automatically. If there
are multiple alarms in the current system, you can query alarms through the following steps.
At the MAINMENU screen (see Figure 4-7), press▼ to select 'Active Alarm' menu. Press the ENT key to confirm.
The previous screen includes the alarm serial No./alarm total number, alarm name and alarm time. The alarm
generating time determines the sequence it is displayed, with the latest alarm displayed first. Press ▼ to view all active
alarms. The active alarms may be displayed in the controller are given in Table 4-3.
Alarm name
DC Low Volt
DC High Volt
AC Low Volt
AC High Volt
Temp Low
Temp High
Batt Discharging
Batt Charging Over Curr
AC Fail
Load Disconnect
Batt Disconnect
BLVD
ECO Fail
Sys Curr Imbalance
Output Volt Abnormal
Rect Fault
Rect Fan Fail
Rect Protect
Rect Comm Fail
Critical alarm
Observation alarm
Note:
1. Relays 3 ~ 6 are available only if the DO expansion board is installed.
2. The relay2 associated with observation alarm, it is necessary to set the parameter 'Relay2' under the 'Settings' menu to 'Alarm
output'. The system is set to 'Alarm output' at factory
4.3.2 Querying Historical Alarm
At the MAINMENU screen (see Figure 4-7), press ▼ to select the 'History Alarm' menu. Press the ENT key to confirm.
The alarm contents include the alarm serial No./alarm total number, alarm name and alarm time. The alarm generating
time and the alarm end time are displayed alternatively. Press ▼ to view all historical alarms.
4.3.3 Querying Rectifier Information
The 'Rect. Information' screen displays the information of the first rectifier module. To query the next rectifier
information, simply press ▼. When a rectifier is selected, the corresponding run indicator will flash.
Table 4-3 Active alarm of the controller
System output voltage lower than DC low voltage alarm point
System output voltage higher than DC high voltage alarm point
System input voltage lower than AC low voltage alarm point
System input voltage higher than AC high voltage alarm point
Temperature lower than normal operating range
Temperature higher than normal operating range
Battery is discharging
Charging current exceeds preset max. value
Rectifier AC input voltage lower than 80Vac
Load distribution fuse or MCB off
Battery fuse or MCB off
BLVD contactor opens due to low battery voltage
Energy saving failure
System current is not balanced
System output voltage is abnormal
Rectifier fails
Rectifier fan fails
Rectifier protects itself as its AC input voltage is out of normal range: 85Vac
~ 295Vac
Rectifier cannot communicate with LCU
There is one or several critical alarms
There is one or several observation alarms
NetSure 2100 A31-S1 Subrack Power System User Manual
Conditions
Default associated
output relay
4
*1
*1
4
None
None
None
None
None
None
*1
3
None
None
6
*1
*1
6
None
None
5
*1
*1
5
*1
5
*1
5
1
*2
2
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