Bypass Mode Start-Up Procedures; Manual Bypass Mode Start-Up Procedures - Delta DPS Series User Manual

6.2.3

Bypass Mode Start-up Procedures

WARNING:
Before turning on the UPS, please read 6.1 Pre Start-up & Pre Turn-off Warnings
thoroughly and ensure that the precautions and instructions have been followed.
Step 1
Ensure that the external maintenance bypass cabinet's Manual Bypass Breaker or Switch
(Q3) is in the OFF position.
Step 2
Switch ON the external maintenance bypass cabinet's Bypass Breaker or Switch (Q2) and
Output Breaker or Switch (Q4).
Step 3
Now, the UPS runs in Bypass mode, the LCD screen shows as below, and the tri-color LED
indicator illuminates yellow.
6.2.4

Manual Bypass Mode Start-up Procedures

WARNING:
1. Before turning on/ off the UPS, please read 6.1 Pre Start-up & Pre Turn-off
Warnings thoroughly and ensure that the precautions and instructions have
been followed.
2. In Manual Bypass Mode, make sure that all of the switches/ breakers (except
for the external maintenance bypass cabinet's Manual Bypass Breaker/ Switch
(Q3)) are in the OFF position before working on the UPS's internal circuits to
prevent electric shock. DO NOT touch any external maintenance bypass
cabinet's terminal and bus bar which may carry high-voltage electricity.
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