Eaton Electrical Powerware 9315 operation manual Responding to System Events, System Event Horns

Chapter 10

Responding to System Events

When the UPS system is running in Normal mode, it continually monitors itself and the incoming utility power. In Battery or Bypass modes, the UPS may issue alarms to let you know exactly what event caused the change from Normal mode. System events can be indicated by horns, lights on the UPS, or both.

Select Active from the Events menu on the LCD screen to look at the Active System Events screen. This screen shows any currently active alarms, notices, or commands.

10.1 System Event Horns

The system event horn beeps according to the type of event it is signifying:

￿When the UPS detects an alarm that requires your attention, the horn beeps at ½-second intervals.

￿When a notice occurs, the horn beeps at 2-second intervals.

10.2System Event Lights

The status indicators on the UPS Monitor Panel work in conjunction with the event horn to let you know when the UPS is operating in any mode other than Normal. Only the Normal indicator is visible during normal UPS operation. The others light to indicate alarms or events. When an alarm occurs, you should first check these indicators to see what type of event has taken place. (For descriptions of the status indicators, see “Reading the Status Indicators” on page 5-4.)

10.3 System Event Messages

When a system event occurs, a message is added to the Event History Log. A message may also appear on the Monitor Panel of the UPS. The Event History Log contains all system event messages, whether or not they were displayed on the Monitor Panel.

INVERTER MESSAGES - ALARMS	INVERTER MESSAGES - NOTICES
Inverter DC Over Voltage	Bypass AC Over Voltage
Clear Inverter DC Over Voltage	Clear Bypass AC Over Voltage
Inverter AC Over Voltage	Bypass AC Under Voltage
Clear Inverter AC Over Voltage	Clear Bypass AC Under Voltage
Inverter AC Under Voltage	Bypass Over Frequency
Clear Inverter AC Under Voltage	Clear Bypass Over Frequency
Inverter Over Frequency	Bypass Under Frequency
Clear Inverter Over Frequency	Clear Bypass Under Frequency
Inverter Under Frequency	Battery DC Under Voltage
Clear Inverter Under Frequency	Clear Battery DC Under Voltage

EATON Powerware® 9315 UPS (200–300 kVA) Operation Manual S 164201036 Rev F powerware.com 10-1