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3. Operation
See also
Cold start ON/OFF setting ➛ Page 49
• During operation, the battery is charged automatically.
Status indicator
Beep
Power supply output receptacles
None
Outputs power (connected devices are powered)
3-2 Start and stop procedures and basic operation
● When the power switch is OFF and the AC input plug is connected to a commercial
power supply:
• The details of the most recent error are displayed. (item 4 on page 40)
• The status indicator displays " ".
• Power output is stopped.
• The battery automatically starts recharging.
● Start procedure
Operation
Turn on the power switch of the UPS.
• Output begins in Bypass Mode about 10 seconds after the switch is activated. (Status indicator “
”)
However, “ ” is displayed at cold start, and output begins in Battery Mode.
• The status indicator displays “
”, and the self-diagnostic test is performed in Battery Mode for about
10 seconds. (If the battery voltage is low, the self-diagnostic test is not performed. It is automatically
executed after the battery is charged.)
*1 When the self-diagnostic test finishes successfully, switching to AC output from commercial power
is performed and normal operation starts.
*2 Self-diagnostic test is not performed at cold start.
• If the self-diagnostic test is finished normally, It is replaced by the AC output from a commercial power
supply and become a normal driving state through inverter mode.
• If the self-diagnostic test is not executed, the UPS immediately starts outputting AC from commercial
power.
ON
OFF
ON
OFF
ON
OFF
ON
OFF
Commercial Power
Battery
Bypass
Inverter
Commercial Power
Battery
D-1
<Note>
D-1 : The most recently displayed error code (refer to item 4 on page 34)
(If no errors have occurred, " " is displayed.)
Commercial
operation
AC input
7 seg.
Power supply SW
Power supply
output lamp
Bypass operation
lamp
Operating mode
Operating mode
Output
Startup
preparation
about
10 sec.
about
10 sec.
about
2 to 3 sec.
Bypass
mode
Self-diagnostic
test
1 sec.