HP Tower Uninterruptible Power System - Manual (Page 40)

UPS operations 40
NOTE: If the On and Off buttons are simultaneously pressed, the Off button has priority over
the On button.
Button Assertion
time Audible alarm Mode before
assertion
Utility
present ? Action
On 0.5
seconds Every 0.5
seconds until the
button is
released Standby Yes Energizes the load and
resets the bypass entry
count to 0
Operate Yes Resets the bypass entry
count to 0
Auto-Bypass Yes Clears the UPS On audible
alarms, resets the bypass
entry count to 0, and
attempts to transfer to
Operate mode
Converter Off Yes Clears the UPS On audible
alarms, resets the bypass
entry count to 0, and
attempts to transfer to
Operate mode
Off 3 seconds Every 0.5
seconds until the
button is
released Operate Yes Transfers to Standby
mode, and power to the
load ceases
Standby Yes No action
Battery No Powers down the UPS, and
power to the load ceases
Auto-bypass Yes or No Transfers to Standby mode
or Converter Off mode,
and power to the load
ceases
Self Test 0.5
seconds Any Yes or No Silences audible alarms
after 0.5 seconds
3 seconds Continuously Any Yes or No Initiates a self-test
Battery
Start 0.5
seconds Any Yes or No No action
Battery
Start and
On 3 seconds Continuously UPS off No Transfers to battery power,
and begins powering the
load
On and
Self Test 3 seconds Continuously Any Yes or No Enters or exits
Configuration mode
Configuring the UPS
The UPS automatically detects the number of ERMs connected.