Operation Manual of 12V UPS
Revision: 01
Date: Dec.5. 2021
Page
9
of
10
8)
Simulation of mains failure
Simulation of mains failure by Switch off input MCB
1
、
The inverter Red LED
indicator will lights up at
the same time, the mains
Green LED indicator goes
off.
2
、
The DC Ammeter will
reflect the battery output
discharge current.
3
、
If required to test the
UPS for longer duration,
the AC supply to the UPS is
advisable to be switched
off.
4
、
When the batteries
discharged to its critical low
voltage level, the Electronic
Low-Voltage .
Cut Off Circuit will activate.
5
、
Switch on the AC supply
to the UPS to resume its
normal operation.
