Installation Instructions
Original Instructions
Compact I/O Expansion Power Supplies
Catalog Numbers
1769-PA2, 1769-PB2, 1769-PA4, 1769-PB4
Topic Page
Summary of Changes 2
About the Power Supplies 7
Before You Begin 7
Assemble the System 10
Mount an I/O Expansion Power Supply 12
Verify Your System Power 14
Power Considerations 15
Use a Master Control Relay 17
Schematic (Using IEC Symbols) 18
Schematic (Using ANSI/CSA Symbols) 19
Connect the Power Supplies 19
Connect Field Wires 21
Replace the Fuse 24
Temperature Derating 25
Power Dissipation 29
Specifications 31
Additional Resources 34
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