Facility Explorer FX15 - Connecting Analog Outputs (Without Opto-isolation)

FX15 Controller Technical Bulletin
38
The FX15 controller analog outputs are commonly used to drive
proportional devices and can be connected to all the Johnson Controls
Proportional Valve Actuators (Figure 38).
AO V ~ Com
24V
AO Com
75
AO Com
78
7776
AO3
AO4
80
79
AO V ~ Hot
71
AO Com
AO Com
747372
AO1
AO2
FX16
91
Earth
V ~ Hot
93
92
V ~ Com
220Vac24 Vac
Figure 38: Connecting the Analog Output without Opto-isolation
IMPORTANT: Maintain proper polarity and voltage or current ratings.
Improper polarity or exceeding the voltage or current ratings will void the
warranty.
FX15 Terminals
Description
AO Com (77)
Common Reference
AO4 (78)
Analog Output 0-10 V
AO V~ Com (79)
Common Reference
AO V~ Hot (80)
Power Supply 24 VAC
Note: The numbers inside the parentheses are the FX15 controller
terminal numbers.
To achieve insulation from the microprocessor, use different
24 VAC power supplies to power the controller, and to power the
analog outputs (through Terminals 79 and 80).
15 VA
FX15