AFX SERIES® OPERATION MANUAL
SECTION 5: UNPACKING AND INSTALLATION
Entire Contents Copyright
2018 by Pacific Power Source, Inc. (PPS)
• All Rights Reserved • No reproduction without written authorization from PPS.
AFX Series Power Source Operation Manual
Page 77 of 402
5.16.2
-EPO: Emergency Power Off Option
The Emergency Power Off option adds a mains input contactor to the
cabinet system. This contactor is normally closed allowing the AFX
system to power up. A mushroom style emergency OFF push button is
located on a 1U panel directly below the master unit in the cabinet.
When pushed, the AC power input contactor opens, removing AC
input power from all AFX units installed in the cabinet. The
Mushroom switch must be twisted and pulled out in order to re-
connect input power.
Note: For 45kVA systems, a taller cabinet will be required to accommodate the 1U panel
for the Emergency Off Mushroom switch.
5.16.3
-MRC: Mode Relay Control Option
The Mode Relay Control option adds contactors to the bottom of the cabinet that are
controlled by the master AFX unit to short the three output phases together when the AFX
system is placed in single phase output mode. This eliminates the need to manually short
and separate output phase connections when toggling between single and multi-phase
modes of operation.
5.16.4
-28UX Option
The 28UX option uses a taller than normal cabinet to allow for future expansion. Wiring for
additional AFX units is already installed in AFX cabinets ordered with these options. This
option applies to standard 15U based AFX cabinet models only and substitutes a 28U
cabinet with additional filler panels.
5.16.5
-Transformer Options for Cabinet Systems
Cabinet systems can be ordered with an optional AC only voltage range higher than 300Vac.
Standard transformer coupled range is 400Vac L-N / 692V L-L. Other voltage range may be
available on request.
Cabinet based transformer option systems have three step-up transformers installed at the
bottom of the cabinet. As such, cabinet height may be taller than for the equivalent power
rated AFX cabinet without the transformer option.
All controls and wiring between the AFX power sources and the optional transformers is
installed inside the cabinet and operation is no different from a standard AFX cabinet
system except there is another available AC only voltage range.
Refer to Section 6.4 for details on using the optional voltage range.
