Wiring; Pre-Wiring Warnings - Delta DPH series User Manual

5.5

Wiring

5.5.1 Pre-wiring Warnings

y
Before wiring or making any electrical connection, make sure the power supplied to the
input and output of the UPS is completely cut off.
y
The UPS's output can connect to either the critical loads or the rack-mount PDC (op-
tional; at maximum two). Please only choose one application. If the UPS's output con-
nects to the rack-mount PDC, please refer to the rack-mount PDC's user manual for
relevant information about the rack-mount PDC's installation, wiring and operation.
y
The installation of the rack-mount PDC (optional; at maximum two) must be completed
before UPS wiring.
y
The UPS allows top wiring and bottom wiring. Please leave adequate space around all
sides of the UPS for cable entry. To protect the UPS from overheating, wiring must not
block or cover any fans of the Power Module (optional; at maximum six) and the rack-
mount PDC (optional; at maximum two).
y
Check that the size, diameter, phase, and polarity are correct for each cable that needs
connecting to the UPS. Please refer to Table 5-2.
o
n
M10 Screw
(Figure 5-3 : Balance Support Installation/ Rear)
WARNING!
It is recommended that you stabilize the UPS with the four balance supports.
Otherwise, the UPS might topple over.
(Rear View)
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5 - 5
5 Installation and Wiring
Ground
Balance Support
Expansion Screw