5. Operating Procedure
5-1 Start up Procedure (Single Unit)
Preliminary Check
：
All circuit breakers are cut off, including the breaker or fuse of the external battery
cabinet.
Confirm there is no voltage potential between
NEUTRAL
and
Ground
.
Confirm the input power source matches the rating (Voltage
、
frequency
、
phase and
battery ) of UPS you install.
Q4 Q3 Q2 Q1
Q1 : Input Circuit Breaker
Q2 : Bypass Input Circuit Breaker
Q3 : Manual Bypass Circuit Breaker
Q4 : Output Circuit Breaker
Start up procedure:
1. If there is external battery cabinet connected, switch on the circuit breaker of battery
cabinet. Confirm
Q3
is cut off.
2. Switch on the
Q2
and
Q4
.
LCD display will be activated. After initializing process, LCD display will show
”ON
AUTO BYPASS”
. In the meantime, UPS output is supplied by the bypass source and
the LED indicator
”BYPASS”
turns on.
3. Switch on the
Q1.
If input power source is normal, UPS is ready to start up.
4. Press
button
” I ”
for 3 seconds until you hear a beep then release button. Inverter will
activate and synchronize with bypass source. UPS transfers from bypass into inverter
therefore output will be supplied by inverter.
”BYPASS”
indicator turns off
and
”NORMAL”
indicator turns on.
5-2 Battery Start (Single Unit)
1. Switch on circuit breaker of external battery cabinet and confirm
Q3
is cut off.
2. Press
button
” I ”
for 3 seconds until you hear a beep then release button.
3. UPS starts up by DC-bus soft start. Inverter will activate and follow default frequency.
4. Inverter will supply UPS output, and
”BATTERY”
LED indicator turns on.
5-1
