OPTI-UPS DS160KD33 - Manual (Page 50)

4-1
4. OPERATIONS
After all cables have been connected, the UPS is ready to operate once power
source is available at the input terminal. Before turn on any switch or breaker,
check once again the following points listed below:
(a) Check the input voltage if it conforms with the UPS’s rated input
voltage.
(b) Check the input frequency if it conforms with the UPS’s rated input
frequency.
(c) Check if all load at the output is switched off.
(d) All breakers and the battery dis-connector are opened.
(e) If there is anything not belongs to the UPS exits inside the UPS.
4.1. Switch on Procedure
If you want to start the UPS from completely shutoff to normal operation, you can
follow the steps below to turn on the UPS. (But this procedure is for standard
system, 380/220V 3 phases 4 wires Input, 10~160KVA. For special specification
and those above 160KVA, please refer to the brief instruction label stuck in front
of the PCB holder.)
(a) Close the reserve breaker – The reserve and output LED on the mimic will
lit up, indicating the reserve static switch loop is energized,
therefore the output has power now. The power supply in the UPS
also established. The fans will rotate too.
(b) Close the rectifier breaker - The rectifier will be automatically started if the
power source connected is correct. The DC voltage will slowly
rise up (15 – 30 sec.) until the designated voltage is reached, and
will keep the value anyhow. Now, the DC is already ready for the
inverter.
(c) Close the battery breaker - A fuse holder is employed the battery to the DC
bus for safety purpose. Now the battery will take over to supply
the DC bus if rectifier mains fail.