INTRODUCTION
I-E96-506B1 E - 1
APPENDIX E - IEPAS01/IEPAF01 POWER MODULE
REPLACEMENT
INTRODUCTION
The IEPAS02 and IEPAF02 power modules are compatible
replacements for the IEPAS01 and IEPAF01 power modules
respectively. The IEPAS02 and IEPAF02 modules have design
enhancements and features that are not available in the previ-
ous power modules. The information in this appendix pertains
to replacing IEPAS01 and IEPAF01 power modules with
IEPAS02 and IEPAF02 power modules.
REPLACING POWER MODULES
The IEPAS02 module can directly replace the IEPAS01 power
module in all applications. Because the IEPAS02 can supply
more power, there is no power deficiency when replacing an
IEPAS01 module with an IEPAS02 module.
The IEPAF02 module can directly replace the IEPAF01 module
in all applications. The power output of these modules is equal.
POWER SYSTEM SIZING
The IEPAS02 power module can deliver more power than the
IEPAS01 module. Refer to Table E-1 to compare total power and
current outputs of each module. Because of the difference in
load capability, systems using both IEPAS01 and IEPAS02 mod-
ules must use the power system sizing procedures for IEPAS01
modules (i.e., based on 102 watts output per power module).
LOAD SHARING
All power modules share the same load buses. The load sharing
scheme relies on power module voltage outputs being equal.
Equal load sharing on a particular bus depends upon the power
module voltage outputs being equal. A power module with a
higher voltage output will tend to supply more of the load on a
particular bus than its lower voltage output counterparts.
Table E-1. IEPAS01/IEPAS02 Modules Power
and Current Outputs
Module
Maximum
Power (W)
Maximum Current Outputs (A)
5 VDC
±
15 VDC 24 VDC
IEPAS01 102 10 0.5 4.0
IEPAS02 130 13 0.8 4.0
NOTE: The power output capabilities of the IEPAF01 power module and the IEPAF02 power mod-
ules are equal.
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