Frequency Conversion Mode Turn-Off Procedures - Delta DPM Gen2 Series User Manual

Step 2
Switch OFF the external maintenance bypass cabinet's Input Breaker (Q1) and Bypass
Breaker (Q2). After that, the UPS will transfer to Standby mode.
Step 3
Wait for the UPS to complete the DC BUS discharging and switch OFF each external
battery cabinet's breaker (Q5). Now, the LCD and tri-color LED indicator will be off.
Step 4
Switch OFF the external maintenance bypass cabinet's Output Breaker (Q4).
6.3.7

Frequency Conversion Mode Turn-off Procedures

WARNING:
Before turning off the UPS, please read
Warnings
thoroughly and ensure that the precautions and instructions have
been followed.
Step 1
Please make sure that the critical loads connected to the UPS have already been safely
shut down. After confirmation, tap the ON/ OFF Button (
inverter. Note that once you turn off the inverter, all the output power will be
completely cut off and the UPS will transfer to Standby mode. Now, the power module
keep charging the batteries.
Step 2
Switch OFF the external maintenance bypass cabinet's Input Breaker (Q1) and Bypass
Breaker (Q2). After that, the UPS will transfer to Standby mode.
Step 3
Wait for the UPS to complete the DC BUS discharging and switch OFF each external
battery cabinet's breaker (Q5). Now, the LCD and tri-color LED indicator will be off.
Step 4
Switch OFF the external maintenance bypass cabinet's Output Breaker (Q4).
6.1 Pre Start-up & Pre Turn-off
103
) to shut down the UPS's