Introduction
Follow these instructions when installing, operating, or servicing the
product.
Isysnet 24VDC Expansion Power Supply,
Series A
(PSSSE24A)
The 24VDC expansion power supply unit (PSSSE24A) passes 24VDC
field power to the I/O modules to the right of the power supply. This
unit extends the backplane bus power for up to 17 I/O modules to the
right of the supply and creates a new field voltage partition.
The expansion power supply also separates field power from I/O
modules to the left of the unit, effectively providing functional and
logical partitioning for:
• separating field power between input and output modules
• separating field power to the analog and digital modules
• grouping modules to perform a specific task or function
You can use multiple expansion power units with the I/O adapters
to assemble a full system. For instance, if you are using the
PSSCDM12A or PSSCDM18PA adapter, you may use a PSSSE24A
expansion power unit to add additional modules in 5 to 17 module
increments. For example, if you had a 36 module system with a I/O
adapter, you would have two PSSSE24A expansion power units
to provide more PointBus current for modules to the right of the
supply.
Installation & Service Instructions
E105P
Isysnet 24VDC Expansion Power
Supply, Series A (PSSSE24A)
ISSUED: January, 2007
Supersedes: June, 2005
Doc.# E105P, ECN# 060961, Rev. 2
Do not connect 120/240VAC to the PSSSE24A terminals.
Damage to the supply will result.
!
ATTENTION
You can only use the PSSSE24A expansion power unit with
the I/O adapters.
!
ATTENTION
WARNING
FAILURE OR IMPROPER SELECTION OR IMPROPER USE OF THE
PRODUCTS AND/OR SYSTEMS DESCRIBED HEREIN OR RELATED
ITEMS CAN CAUSE DEATH, PERSONAL INJURY AND PROPERTY
DAMAGE.
This document and other information from Parker Hannifin Corporation,
its subsidiaries and authorized distributors provide product and/or system
options for further investigation by users having technical expertise. It
is important that you analyze all aspects of your application, including
consequences of any failure and review the information concerning the
product or systems in the current product catalog. Due to the variety of
operating conditions and applications for these products or systems, the
user, through its own analysis and testing, is solely responsible for making
the final selection of the products and systems and assuring that all
performance, safety and warning requirements of the application are met.
The products described herein, including without limitation, product
features, specifications, designs, availability and pricing, are subject to
change by Parker Hannifin Corporation and its subsidiaries at any time
without notice.
EXTRA COPIES OF THESE INSTRUCTIONS ARE AVAILABLE FOR INCLUSION
IN EQUIPMENT / MAINTENANCE MANUALS THAT UTILIZE THESE PRODUCTS.
CONTACT YOUR LOCAL REPRESENTATIVE.
!
Pneumatic Division
Richland, Michigan 49083
Safety Guide
For more complete information on recommended application guidelines, see
the Safety Guide section of Pneumatic Division catalogs or you can download
the
Pneumatic Division Safety Guide at: www.parker.com/safety
WARNING
• To avoid unpredictable system behavior that can cause personal
injury and property damage:
• Disconnect electrical supply (when necessary) before installation,
servicing, or conversion.
• Disconnect air supply and depressurize all air lines connected to this
product before installation, servicing, or conversion.
• Operate within the manufacturer’s specified pressure, temperature,
and other conditions listed in these instructions.
• Medium must be moisture-free if ambient temperature is below
freezing.
• Service according to procedures listed in these instructions.
• Installation, service, and conversion of these products must be
performed by knowledgeable personnel who understand how
pneumatic products are to be applied.
• After installation, servicing, or conversion, air and electrical supplies
(when necessary) should be connected and the product tested for
proper function and leakage. If audible leakage is present, or the
product does not operate properly, do not put into use.
• Warnings and specifications on the product should not be covered by
paint, etc. If masking is not possible, contact your local representative
for replacement labels.
!
PSSSE24A
24V dc Power Supply
System
Power
Field
Power
A
U
X
P
O
W
E
R
PSSSE24A
24VDC
Expansion
Power Supply
Wire
Marker
Mini 7/8”
Power
Connector
LED
Indicators
