88
017-882-B0-001 Rev. E (06/2018)
3.0 Operation, Continued
3.5 Active Alarms
Two LEDs on the Inverter Module indicate the condition and status of the Intelligent CableUPS.
The green Output LED, when lit, indicates the power supply is functioning normally and supplying output AC to the
load. A flashing output LED indicates that an alarm has been detected. If there is an output failure, the Output LED
will be turned off with hazardous output voltage present.
The red Alarm LED flashes to indicate a major alarm has been detected. This state clears when the alarm is no
longer present. Under typical operating situations, the red Alarm LED is off. This indicates normal power supply
operation.
In the event of a failure, the Active Alarm displays which alarms are active and how to correct the alarm condition. If the
display is not illuminate, press a softkey to activate the display to view the alarm details.
• Press the menu key with ALM indicated above it to see the ACTIVE ALARM list for the selected key.
• Press UP or DOWN to select the alarm of interest.
• Press ENTR to select the alarm and display diagnostic information. Press ESC to return to the alarm list.
A Help sub-menu provides possible remedies relating to the active alarm. To access the Active Alarm Help sub-menu, scroll
to the alarm of interest and press ENTR. Press either UP or DOWN to scroll through the list of remedies.
Alarms are classified in two categories:
MAJOR Alarms
are indications of a serious failure within the power supply, such as a loss of output voltage or a failed
battery charger. Any situation that causes output failure is considered a Major Alarm. Major Alarms require immediate action
to correct the failure. To correct Major Alarms, follow the Smart Display on-screen instructions.
MINOR Alarms
indicate a less serious failure, such as defective PTS or loss of utility power. Corrective action can be delayed
for a short time. To correct, follow the Smart Display on-screen instructions.
The alarm matrices on the following pages indicate the MAJOR/MINOR active alarms, the probable cause, troubleshooting
items to check to correct the alarm condition, and whether or not Standby is disabled for that alarm type.
Fig. 3-4, Active Alarm Table
(Alarm Conditions exist in the Battery and Communications subsystems)
OUTPUT LED (green)
1
2
ALARM LED (red)
Condition
Output Alarm
Normal
On
Off
Minor
Flash
Off
Major
Flash
Flash
Output Off
Off
Flash
1
2
OUTPUT
ALARM
TEST
120V/9.6A
89V/10.4A
**ACTIVE ALARM**
OK
PWR
PM
BATT
ALM
COMM
OK
APPS
1
2
