Technical Bulletin FX15 Controller
Issue Date June 9, 2014
© 2014 Johnson Controls, Inc. 1
Code No. LIT-12011107
www.johnsoncontrols.com
FX15 Controller
Introduction to FX15 Controller ............................................................ 3
Key Concepts ...................................................................................................... 4
FX15 Controller ................................................................................................................. 4
Installation .............................................................................................. 5
North American Emissions Compliance ............................................................................ 6
Detailed Procedures ........................................................................................... 7
Mounting Instructions ........................................................................................................ 7
Assembling the Integrated MUI......................................................................................... 8
Connection Details .......................................................................................................... 10
Connection Details for I/O Expansion (XT-XP Modules) on Local Extension Bus .......... 13
Connection Details for the N2 Open Card ...................................................................... 13
Connection Details for the L
ONWORKS Card ................................................................... 17
Connection Details for the Remote User Interface ......................................................... 19
Connection Details for the FX Programming Key ........................................................... 22
Inputs and Outputs .............................................................................. 26
Introduction ....................................................................................................... 26
Key Concepts .................................................................................................... 27
Detailed Procedures ......................................................................................... 28
Isolation Diagram ............................................................................................................ 28
FX15 Controller I/Os Powered at 24 VAC ....................................................................... 29
Analog Inputs .................................................................................................................. 30
Digital Inputs ................................................................................................................... 36
Analog Outputs ............................................................................................................... 37
Digital Outputs ................................................................................................................ 39
Extension Modules ......................................................................................................... 42
Troubleshooting ................................................................................................ 44
Reading 9999 or Invalid from the Analog Inputs ............................................................. 44
Cannot Properly Read Current Sensors ......................................................................... 44
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