OPTI-UPS DS120KC33 User Manual
Page 37
(5) 1.Initial start up procedure:
Make sure all the loads connected to the UPS are switched off. Turn on Switch S1, S2 and turn
off S3 in sequence. Then turn off S4 fuse switch in the UPS. Press the “ON” button on the LCD
panel and a screen for confirming setting appears. Press “ ENTER” button. A message “Setting
complete” on the screen appears in a few seconds to indicate setting is successful. At that time the
system will detect the battery for 30 seconds and then the UPS will transfer from Bypass mode to
Inverter mode. Measure the output voltage and frequency on terminal R, S, T to see if the reading
is correct. Measure the voltage on terminal B+ and B- to see if the voltage is 410VDC. Please
follow operating steps as shown in (fig. 5-1-1).