Bypass Mode Turn-Off Procedures (Parallel); Manual Bypass Mode Turn-Off Procedures (Parallel) - Delta HPH-60K User Manual

Turn off the UPS's output breaker.
3
Ensure that the UPS's DC BUS voltage drops to below 20V.
4
After the UPS that you want to shut down completes the discarding process, the UPS's
5
LCD display will be off.
Turn off the UPS's external battery cabinet's breaker.
6

7.2.7 Bypass Mode Turn-off Procedures (Parallel)

If you want to shut down one of the parallel UPSs, please follow the procedures below.
For single input, please turn off the input breaker of the UPS that you want to shut down.
1
For dual input, please turn off the input breaker and bypass breaker of the UPS that you
want to shut down.
Turn off the UPS's output breaker.
2
Ensure that the UPS's DC BUS voltage drops to below 20V.
3
After the UPS that you want to shut down completes the discarding process, the UPS's
4
LCD display will be off.
Turn off the UPS's external battery cabinet's breaker.
5

7.2.8 Manual Bypass Mode Turn-off Procedures (Parallel)

If you want to shut down one of the parallel UPSs, please follow the procedures below.
For single input, please turn off the input breaker of the UPS that you want to shut down.
1
For dual input, please turn off the input breaker and bypass breaker of the UPS that you
want to shut down.
Turn off the UPS's output breaker.
2
Ensure that the UPS's DC BUS voltage drops to below 20V.
3
After the UPS that you want to shut down completes the discarding process, the UPS's
4
LCD display will be off.
Turn off the UPS's external battery cabinet's breaker.
5
Turn off the UPS's manual bypass breaker.
6
Ultron HPH Series UPS
60