Manual Bypass Mode - Delta Ultron DPM Gen2 Series User Manual

3.4

Manual Bypass Mode

When the UPS runs in Manual Bypass mode, the current only flows through the
maintenance bypass so that the maintenance personnel can maintain the circuit inside
the UPS. However, DO NOT touch any external maintenance bypass cabinet's terminal
and bus bar which may carry high-voltage electricity. During Manual Bypass mode,
the UPS's input power is completely cut off, and the critical loads are not protected. At
the moment, the UPS's tri-color LED and LCD screen are both off.
(Figure 3-4: Manual Bypass Mode Diagram)
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Ultron DPM Gen2 Series