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4400 Series Installation and Operation Manual – 64527-008
12.2 Operator Controls – Light Emitting Diodes (LED)
The following table describes the front panel LED behaviors and the associated meaning.
TABLE 12.1: LED BEHAVIOR KEY
LED
Behavior
Significance/Meaning
On-Line/
Fault
Green – ON
UPS is in On-Line, Backup, or
Battery Test mode.
Green – OFF
UPS in Bypass or Shutdown mode.
Red – ON
One or more faults occurred. See
Records: Faults
for details.
Red – OFF
No fault occurred.
Warning
Amber – ON
Service Call needed.
Amber – Flashing
One or more Warnings occurred.
Amber – OFF
No Warning occurred.
A/C Input
Green – ON
Input or Bypass voltage is within specified range.
Green – Flashing
Input or Bypass voltage is over specified range.
Green – OFF
Input or Bypass voltage is under specified range.
NOTE: On-Line/Fault LEDs – Appear Amber if Green and Red flash concurrently.
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