3
15272 Newsboy Circle
Huntington Beach
California 92649
Phone: 714-751-0488
Fax: 714-856-9679
E-Mail: [email protected]
PoweringTheNetwork.com
I) OVERVIEW
The Power Function Manager (model PFM-500) converts multiple DC power sources (or NEWMAR Power Modules) into a
fully integrated and multi-functional power system. The unit provides control, monitoring, paralleling and protection of
12V, 24V or 48V DC, positive, negative or floating ground power sources.
A heavy duty
(500 amp)
parallel bus bar, digital metering, individual power source and total system status lights, five
load distribution breaker capacity, low voltage battery disconnect and summary alarm contacts are all combined into the
compact, rackmount housing of the PFM, which serves as a master DC power management and distribution center.
The PFM may be used for integration, control, monitoring and protection of numerous different types of power sources,
such as AC-DC rectifiers, regulated power supplies or DC-DC converters. In addition, any rack power product, including
distribution panels, can be connected to the PFM's alarm system, provided they employ form C or Normally Open (NO)
alarm contacts. For simplicity of explanation in this manual, reference is made to the NEWMAR Power Module as the
power source(s).
Note: Installation of Oring diodes is required for paralleling of DC power sources. Oring diode output is standard on NEWMAR PM
Series Power Modules.
II) INSTALLATION
A) Materials Provided
Prior to installation, please check to see that each of the following items have been included with the PFM. Check both the
information packet and the cardboard insert which is labeled "ACCESSORIES INSIDE". For any missing items please contact
the factory or warehouse.
B) PFM Mounting
The PFM is designed for mounting in a 19" or 23" relay rack and occupies two rack-units (2RU; 3.5"). A 19" set of mounting
ears and six 6-32 x 3/8" pan head phillips screws for attaching the ears to the PFM chassis are provided. Optional 23" rack
mounting ears are available - please contact Newmar for P/N: 699-3918-0, qty 2. Attachment holes in the chassis are
provided to allow either flush or 6" off-set or center mounting - rear support is required if choosing flush mounting.
C) Bus Bar Mounting
The PFM is shipped with a rackmount ground bus bar assembly kit (BBA-800). The bus bar is typically mounted on the rear
of the rack and is designed for installation on 19" or 23" racks using the provided mounting brackets and isolated stand-
offs. Refer to the instruction sheet provided with the BBA for complete mounting instructions and specifications.
BBA and PFM Rack Location Note:
When wiring multiple power sources for parallel n+1 redundant wiring, equal length
positive and negative conductors are required for optimum load current sharing. Mounting the BBA at the opposite end
of the rack as the PFM (i.e., BBA at top-of-rack; PFM at bottom, or vice versa) will help facilitate equal length conductor
wiring.
D) Input Voltage Selection (Universal) and Wiring
The PFM has a universal input so no input selection switch is required. It will operate on 12, 24, or 48V DC with positive or
negative ground.
1) Simplified Wiring Option: DC Quick Connect Wiring Kit
A DC wiring harness quick connect kit is available from NEWMAR which simplifies parallel wiring installation of
multiple Power Modules with the Power Function Manager, and also facilitates “hot change-out” of modules for repair or
replacement.
Note: This option is available only for systems which incorporate 1,000 watt models of the NEWMAR PM Series Power
Modules.
The kit consists of a power wiring harness with wires which are pre-cut to proper length and properly terminated with ring
lugs. The harness is neatly tie-wrapped into proper position for a simple and professional installation.
(2) ea. Mounting Ears for 19" rack mounting
(6) ea. 6-32 X 3/8" Phillips Screws (for mounting ear)
(1) ea. Circuit Breaker Finger Guard Cover
(2) ea. 6-32 x 1-3/8" Phillips Screw (Finger Guard Cover)
(2) ea. #6 23MM Spacer (Finger Guard Cover)
(1) set Circuit Breaker Identification Labels
(1) ea. Status Contact Wiring Harness with
3 position connectors
(3) ea. 3 Position Terminal Block Connector for Summary,
Pre-LVD and LVD Alarm Contacts
(6) ea. 1/4"-20 x 1" Hex Head Screws S.S. (Input/Output
Busbar Wiring)
(11) ea. 1/4"-20 Hex Nut S.S. (Input/Output Busbar Wiring)
(11) ea. Flat Washers S.S. (Input/Output Busbar Wiring)
(11) ea. 1/4" Split Lock Washers S.S. (Input/Output Busbar
Wiring)
(5) ea. 1/4"-20 x 3/4" Hex Head Screws S.S. (Hot
Switch Outputs)
(1) ea. BBA-800 Bus Bar Assembly Kit (see BBA instructions
for parts diagram)
(1) ea. Installation/Operation Manual
