2 power-off, 2-1 normal power-off procedures, 2-2 complete power-off procedures – OPTI-UPS DS200KC33II User Manual
Page 28: 3 maintenance bypass, 3-1 maintenance bypass procedures, 4 resumption from maintenance procedures, 5 emergency power off
5-2 Power-off
5-2-1 Normal Power-off Procedures
Press Inverter OFF button on the HMI control panel and Yes button on the pop-up window to shut down
the UPS. UPS operation mode changes from inverter to bypass, and a dialogue window pops up for this
status.
5-2-2 Complete Power-off Procedures
Follow Fig. 5-1-1.
5-3 Maintenance Bypass
5-3-1 Maintenance Bypass Procedures
Follow Fig. 5-3.
5-3-2 DS10KC33 / 15KC33 II Inbuilt Battery Replacement Procedures
(1) Transferring to bypass mode
Follow Fig. 5-3 to transfer to bypass mode.
(2) Replacing old batteries
Remove the rear panel, battery fixers (plates) and disconnect the cables. Rewire the new batteries the same
way the old batteries have been wired. Check voltage and polarity after new batteries have been installed.
(3) Restarting the UPS
Follow Fig. 5-3 to transfer to inverter mode.
5-4 Resumption from Maintenance Procedures
Follow Fig. 5-3.
5-5 Emergency Power Off
EPO (Emergency Power Off) is a device for an accident or emergent power cutoff under abnormal or
unexpected circumstances. EPO makes:
(1) the inverter shut down;
(2) STS (Static Transfer Switch) trip and cut the system output.
(3) RCM (Rectifier Charging Module) stop.
EPO activation and deactivation events and times will be recorded. Communication stays normal during
EPO is active. Press EPO button again and Inverter OFF button on the HMI control panel and Yes button on
the pop-up window and the UPS will resume and operate in bypass mode, and then transfer back to
inverter mode after 3 minutes.