12
3.
Parallel operation
To perform the general operation, follow the stand-alone operating
requirement:
1) Startup: The units transfer to INV mode simultaneously as they
start up sequentially in utility power mode;
2) Shutdown: the units shut down sequentially in INV mode. When
the l ast one completes the shutdown action, each unit will shut
down the inverter simultaneously and transfer
to bypass mode.
It is easy to operate the equipment, with no previous training. You
just need to read through this manual and operate according to the
instructions in it. The meaning of the LED indicators, please refer to
the appendix 1
“
Display panel
”
3. Operation and Operating mode
3.1 Operation
1. Turn on the UPS with utility power supplied (in Line mode/AC
mode)
1) After you make sure that the power supply connection is correct,
set the bypass breaker and the input breaker in the
“
ON
”
position first. At this time the fan rotates and the UPS
supplies power to the load via the bypass. The UPS operates
in Bypass mode.
