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Table 5 - Control Functions.
No. Device Name / Function
Normal Position
During Operation
Remarks
1
“8A”
Switch
Control power source switch
When AC input is normal, this switch energizes the
control circuit.
ON
2
“EPO”
Switch
Emergency power off switch
Whenever this switch is pressed, UPS will stop
operation, and all the breakers will be tripped/opened.
OFF
Figure 9 - UPS Circuit Configuration.
AC INPUT
BYPASS
INPUT
AC OUTPUT
72B
BATTERY
83MC2
83BF
52R
83MC1
INVERTER
CHOPPER
CHARGER
RECTIFIER