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15
Operation
Basic On/Off and Manual UPS Test Verification
Before powering on the UPS, make sure the batteries are fully charged and input
line power is within the configured voltage limits of the UPS (factory default is 88 to
152V AC). The UPS will not turn on to provide AC output without a charged battery
set connected. To verify proper operation and familiarize yourself with UPS operation,
performing these three basic operations prior to putting the UPS into service is
recommended.
1
Turn on the UPS in Line Power Mode
1.1 Switch “ON” the battery circuit breaker.
The fan and all LEDs will illuminate momentarily. The LCD display will report
STARTUP, then the yellow ALARM LED will illuminate and a series of UPS status
notification screens will be available to view.
1.2 Switch “ON” the AC Input circuit breaker.
For approximately 30 seconds, the UPS will monitor AC input line power and turn
on if input is valid. The yellow ALARM LED will continue to illuminate. The LCD
may report the initial turn-on sequence as recovery from a power failure. Press
the ESC button to clear these notifications and view the main UPS status screen.
1.3 Switch “ON” the AC Output circuit breaker.
To power connected equipment, switch ON the AC output circuit breaker to enable
UPS output. You may need to press the ESC button to clear any notifications and
view the main UPS status screen.
2
Verify Battery Backup Operation
Note: Battery mode testing can be performed immediately after installation with a small test
load. For testing at higher loads, it is recommended the battery bank be allowed to charge
for 24 to 48 hours, or until the UPS reports 100% battery charge.
2.1 Switch the UPS from AC LINE POWER MODE to BATTERY MODE.
Switch OFF the AC input circuit breaker to simulate a power failure. The UPS will
continue to provide AC output and the LCD screen will report BATTERY MODE,
OUTPUT VOLTAGE and LOAD LEVEL PERCENTAGE.
Note: You may need to press the ESC BUTTON to clear any notifications resulting from the
loss of AC input before viewing status and measurement values on the main UPS status
screen.
2.2 Switch the UPS from BATTERY MODE to AC LINE POWER MODE.
Switch ON the AC input circuit breaker to return the UPS to AC line power mode.
The UPS will maintain the output load and the LCD screen will report NORMAL
MODE, OUTPUT VOLTAGE and LOAD LEVEL PERCENTAGE.
Notes:
• You may need to press the ESC BUTTON to clear any notifications resulting from restoring
AC input before viewing status and measurement values on the main UPS status screen.
• If the UPS keeps switching between inverter and line mode, turn on the AVR buck and
boost settings via LCD. If the UPS continues to switch between inverter and line mode
with AVR engaged, change the UPS SENSE TYPE setting from UPS to GENERATOR.