34
3. 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 37)
• 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 fi nishes 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.
Cold start ON/OFF setting
➛
Page 45
• During operation, the battery is charged automatically.
Status indicator
Beep
Power supply output receptacles
None
Outputs power (connected devices are powered)
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 37)
(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.
See also
3-2
Start and stop procedures and basic operation
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