Manual Bypass Startup (Single) - AEG 80 / 120 kVA Operating Instructions Manual

5-4 Manual Bypass Startup (Single Unit)
If the UPS is in normal mode, press the "O" button for 3 seconds until you hear a
"beep" and then release the button. The LCD screen will show "SHUTDOWN UPS?",
then select "YES" and press "
bypass mode.
1. Confirm if the UPS is in bypass mode.
2. Switch on "Q3".
3. Switch off "Q4".
1. Only for maintenance purpose, you can manually turn on the bypass switch
"Q3". If you switch on Q3 under normal condition, the inverter will shut down
and the output will be supplied by manual bypass source.
2. Manual bypass mode ensures that the UPS supplies the loads from manual
bypass source. The service personnel can perform maintenance process under
this mode without interrupting the load. At this moment, the UPS is still
supplied by input power source. If the service personnel want to replace any
circuit board or component, the Inverter of the UPS must have been shut down
first (Refer to 5-3). Please be aware that the terminals and breaker area is still
under Voltage. For full maintenance access please use an external manual
bypass.
" to confirm. The UPS will automatically transfer to
5-3