APC 990-4053 Power Supply User Manual


 
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990-4053
Installation Guide APC Silcon 480kW 400V UPS 55
6.2.5 Switching Back to Normal Parallel/Redundant Operation
1. Turn input switch (Q001) and output switch (Q002) to position 1
2. Charge capacitor, connect battery and start up UPS
UPS will automatically switch to normal operation and start load-sharing with other
parallelled UPS(s).
WARNING!
System will discharge built-in capacitors, but check terminal voltage before proceding.
H002a