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Operation
Alarm Messages
The alarm message area displays the alarm conditions that are present within the UPS system. Alarm messages are displayed in flashing reverse video. During normal operation no alarm messages should be present. Up to four messages are displayed. To see if any additional alarm conditions are present in the UPS system, display the Present Status screen on the control panel.
Table 4 is a complete list of all alarm messages and corrective actions, if any. The first column lists the alarm message, with related alarms grouped together.
The second column indicates which special functions (if any) are initiated by the alarm.
D - The alarm initiates an
F - The alarm freezes the History Status Report memory buffer. Pressing the Alarm Reset pad for more than 5 seconds will unfreeze the memory buffer as long as the alarm is no longer active.
L - The alarm latches the displayed alarm message. Some alarm conditions are temporary (tran- sient) and may not last long enough to be noticed. Latching the display (keeping it on) lets you know that an alarm condition has occurred. A latching display alarm remains on the display screen until the alarm condition is removed and the Alarm Reset pad is pressed.
R - The alarm is displayed on an (optional) Remote Monitor Panel. This information is also available for customer use through a set of contacts on a separate terminal board.
S - The alarm initiates a summary alarm at the Remote Monitor Panel.
The third column provides an explanation of the alarm condition, the critical bus status and the corrective actions, if any, to remedy the alarm.
Table 3 | Abbreviations used in alarm messages | ||
|
|
|
|
Auto |
| Automatic |
|
Avail |
| Available |
|
Batt |
| Battery |
|
Byp |
| Bypass |
|
Cap Fuse |
| Capacitor Fuse |
|
Cont Power |
| Control Power |
|
Equip |
| Equipment |
|
H/W |
| Hardware |
|
Inv Fuse |
| Inverter Fuse |
|
OF/UF |
| Over/Underfrequency |
|
| Overtemperature |
| |
| Overvoltage |
| |
Ph Seq |
| Phase Sequence |
|
Rect Fuse |
| Rectifier Fuse |
|
Rexfer |
| Retransfer |
|
Shutdn |
| Shutdown |
|
Static Sw |
| Static Switch |
|
| Undervoltage |
| |
Xfer |
| Transfer |
|
|
|
|
|
50