Operation
Bypass Messages
While in Bypass Mode, the UPS monitors its input voltage and passes that input power along to connected equipment. The UPS will not
provide battery backup in Bypass Mode.
If the output voltage deviates from an acceptable range (between 15% higher and 20% lower than nominal), the UPS displays the condition
on its LCD and stops supplying output power to its load. If power levels return to an acceptable level, the UPS resumes supplying power
to the load, and its LCD reports that output voltage was too high or too low at one time, but has returned to nominal.
Shutdown Messages
Your UPS will shut down and the LCD will display a message if it detects one of the following conditions. Note: During all these conditions,
the "Input," "Output" and "Bypass" LEDs will be illuminated.
continued
BYPASS VOLTAGE
CONDITIONS
>15% Higher
Than Nominal
>20% Lower
Than Nominal
Was Too High,
Now Nominal
Was Too Low,
Now Nominal
SHUTDOWN
CONDITIONS
Extended
Overload
Output Short
Circuit
Remote Shutdown
Command (Via DB9)
Remote Shutdown
Command (Via EPO)
Internal
Faults
LCD DISPLAY
MESSAGES
NO OUTPUT
BYPASS AC TOO HI
NO OUTPUT
BYPASS AC TOO LO
BYPASS MODE
BYPASS AC WAS HI
BYPASS MODE
BYPASS AC WAS LO
LCD DISPLAY
MESSAGES
SHUT DOWN
OVERLOAD XXX%
SHUT DOWN
O/P SHORT CIRCUIT
SHUT DOWN
REMOTE COMMAND
SHUT DOWN
EMERGENCY STOP!
SHUT DOWN
+ DC BUS HIGH
SHUT DOWN
+ DC BUS LOW
SHUT DOWN
- DC BUS HIGH
SHUT DOWN
- DC BUS LOW
SHUT DOWN
OVERTEMPERATURE
14