38
(Figure 5-8: 20/30/40kVA UPS Single Unit Single Input Wiring Diagram)
Dual Input (Single Unit)
When there are two AC power sources, single unit wiring procedures are as follows.
1. Follow
5.5.2 Single Input/ Dual Input Modification
to modify the UPS into dual input. Please
note that only authorized Delta engineers or service personnel can modify single input/ dual
input setup.
2. Please follow steps 1~6 stated in section Single Input (Single Unit).
3. Connect the main AC source/ bypass source/ output/ external battery cabinet cables to the
wiring terminal block (please refer to
Figure 5-9
).
NOTE:
Regarding
Figure 5-9
, each figure represents that the main AC power is the TN
system and a 3-pole protective device is installed between the UPS and the main
AC power. If your main AC power is the TT system, please install a 4-pole protective
device between the UPS and the main AC power.
1. Ground the UPS.
Summary of Contents for Ultron HPH Series
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