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INTRODUCTION
I-E96-508C
2 - 1
SECTION 2 - DESCRIPTION AND OPERATION
INTRODUCTION
This section uses block diagrams and supportive text to
explain how the main functional blocks of the power system
operate. Figures
show overall system architecture
using a module mounting unit and systems using a power
mounting unit. Additional diagrams show circuit details for the
DC transfer module, bus monitor module and power module.
POWER DISTRIBUTION
Bus bars distribute DC input and regulated DC output power
throughout the cabinet. The input power bus bar has three
separate conductor layers. The system power bus bar has eight
separate conductor layers. Bus bars reduce hand wiring and
improve reliability.
Figure 2-1. Block Diagram of Modular Power System with
Module Mounting Unit
FAN
LINE 1
LINE 2
ANY INFI 90 MODULES
ANY INFI 90 MODULES
ANY INFI 90 MODULES
+24 VDC FOR I/O
+24 VDC COMMON
+5 VDC
+24 VDC
-15 VDC
+15 VDC
+5 VDC
-15 VDC
+15 VDC
+5 VDC
+24 VDC
-15 VDC
+15 VDC
POWER ENTRY PANEL
TP25130B
MMU
MMU
MMU
PDS
INPUT
POWER
BUS BAR
SYSTEM
POWER
BUS BAR
ALARM CONTACT
AND STATUS
OUTPUT
24/48 VDC
24/48 VDC
POWER SYSTEM STATUS
POWER SYSTEM STATUS
BUS MONITOR
DETECTION POINTS
EXTERNAL SUPPLY AND
CUSTOMER STATUS