Instruction manual for the bypass system of the POWERLINE 33 60-140 kVA UPS units
5 www.ever.eu Technical support, tel.: +48 61 6500 400 2016-01-18 05:42
SWITCHING FROM THE UPS POWER TO THE MAINS POWER LINE
Follow this procedure to switch the isolated UPS-powered network to the mains
power with the external bypass system (Fig. 1):
1. Turn off the UPS. To do this, go in the interface to: Menu -> Control -> UPS -> Off
(the UPS will be powered off on the logical level).
2. Wait until the UPS is turned off on the logical level and indicates that the
connected receivers are powered via the internal bypass with the red LED –
STANDBY mode.
3. Turn on the switch disconnector Qsb on the bypass line.
4. Turn on the switch fuse Fsb on the bypass line.
5. Turn off the switch disconnector Qout on the UPS output line.
6. Turn off the switch fuse Fm on the UPS input line (also turn off Fb if the UPS has a
separate BYPASS line option).