Operation
(continued)
UPS Fault Shutdown Messages
CONDITION
+BUS >450V
Load <100%: +BUS < 320V; Load >100%: +BUS
<290V
-BUS >450V
Load <100%: -BUS <320V; Load >100%: -BUS <290V
BUS Voltage Over 500
Output Short
UPS Over Temperature
Ouput SCR Open Failure
Output Overload
Bypass SCR Short
Input SCR Rectiier Failure
Inverter Output Voltage Failure
Input Fuse Open
Output Fuse Open
Parallel ID Lost
On Battery Alarm
When in the On Battery Mode, the UPS power module will beep to inform you that it is using battery power to support
connected equipment. If its connected batteries are at more than half capacity, it will beep every two seconds. If its
connected batteries are below half capacity, it will beep twice a second. If its connected batteries are nearly depleted, the
UPS power module will beep continuously.
To silence the On Battery Alarm, press the "ON/MUTE" button.
Overload Messages
When the UPS detects an output overload, its LCD will switch to the following display:
The UPS will then begin a countdown. If the UPS is still overloaded at the end of the countdown, the UPS will automatically go to
Bypass Mode to protect its inverter. The duration of the countdown varies with the severity of the overload, as follows:
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.
201102161 933070.indb 26
LCD DISPLAY MESSAGES
+ DC BUS HIGH SHUTDOWN
+ DC BUS LOW SHUTDOWN
- DC BUS HIGH SHUTDOWN
- DC BUS LOW SHUTDOWN
BUS OVP FAIL SHUTDOWN
OUTPUT SHORT SHUTDOWN
OVER TEMPERATURE SHUTDOWN
OUTPUT SCR FAIL SHUTDOWN
OVERLOAD SHUTDOWN
BYPASS SCR FAIL SHUTDOWN
RECTIFIER FAIL SHUTDOWN
INVERTER SHUTDOWN
I / P FUSE BROKEN SHUTDOWN
O / P FUSE BROKEN SHUTDOWN
PARALLEL FAULT SHUTDOWN
OVERLOAD!
LOAD = XXX% X.XXKW
Overload Condition
Countdown Duration
106% - 125%
1 minute
126% - 150%
30 seconds
>150%
Immediate
BYPASS VOLTAGE
LCD DISPLAY
CONDITIONS
>15% Higher
BYPS OUT OF VOLT
Than Nominal
>20% Lower
BYPS OUT OF VOLT
Than Nominal
26
MESSAGES
XXXV / XX.X HZ
XXXV / XX.X HZ
3/29/2011 4:34:19 PM