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3.
OPERATIONS
After all cables have been connected, the converter is ready to operate once the power source is available
at the input terminal. Before you turn on any switch or breaker, check the following points listed below:
a. See if the input voltage is within tolerance for the converter’s rated input voltage.
b. See it the input frequency conforms to the converter’s rated input frequency.
c. Check if all loads at the output are switched off.
d. All breakers are opened – turned off.
e. The battery disconnector, if you have that option, is opened – turned off.
3.1.
POWER START UP PROCEDURE
To start the converter, from complete shutoff to normal operation, follow the steps below
to turn it on.
a. Close the reserve breaker -- The LCD display and various LED’s on the front panel will
light up.
b. Close the rectifier breaker --
Check the ROTATION ERROR led on the front panel. If
this Led is ON the input phase rotation sequence is incorrect and the rectifier will not
function. In this case reverse any two of the input phases. If the phase rotation
sequence is correct the internal DC voltage will slowly rise (15-30 sec.) until the
designated voltage is reached. At this point the DC LOW light on the front panel will
go OFF and the internal DC supply is ready to supply power to the inverter.
c. Push the INVERTER ON switch and the CONTROL switch simultaneously -- The
inverter will start working and the inverter output will be established within 4 sec.
Then the load will automatically transfer to the inverter within 3 sec. At this point the
converter is operating normally. In addition the fans will now rotate.
d. Close the Output breaker
e. Check that all the LED’s on the front panel block diagram are lighted. All the
WARNING LED’s on the right hand side should be off. Two LEDs: INVERTER ON
and LOAD CONNECTED on the left hand side should be lit. If the load is over 70%,
the 70% LOAD LED will also light.
