Alarms and Events
5.0 Alarms and Events
Alarms are indicated by the red lamp (above the left hand corner of the keyboard) and a 30 seconds acoustic signal. An alarm is registered in the alarm stack as long as it is present, and if more in the same order as they arise.
Certain alarms, such as battery alarms, need resetting. See section 4.0 Parameter Settings.
All alarms are also registered in an event logger and remains there in a stack with room for 250 events. The events are stored in the same order as they arose - showing the latest first.
Besides the alarms the following operational modes are also stored in the event logger.
Mode | Comments |
MPU is reset | UPS has been completely switched off |
UPS has been in | |
Normal operation | UPS has been in normal operation |
Battery operation | UPS has been in battery operation |
Bypass operation | UPS has been in bypass operation |
System off | UPS has been off |
5.1Displaying the Alarm Stack
Action |
| Description | |
1. | Press |
| Access to the alarm stack. |
2. | Press | or | Scroll up or down through the alarm stack |
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| messages. |
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| Last message is "No (further) alarm". |
3. | Press |
| Exits the alarm stack. If not operated the system |
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| will exit the alarm stack automatically after 30 |
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| seconds. |
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User Guide APC Silcon | 23 |