FX15 Controller Technical Bulletin
41
Connecting the Triacs
The FX15 triac (0.5 A, 24 VAC) digital outputs are commonly used to
operate in PAT and DAT modes.
54 575655535251
DO6 no
DO8 no
DO7 no
DO4 no
DO3 no
DO 4/5 Com
DO 6/7/8 Com
Figure 42: Triac Groups
In particular the Digital Outputs PAT mode can be used through the
triac outputs to drive Incremental Valve Actuators.
Figure 43 displays an example of a triac connection.
Figure 43: Connecting an Incremental Actuator
FX15 Terminals Description
DO4 (51)
24V ~ Down command
DO5 (52)
24V ~ Up command
V ~ Hot (93)
24V ~ Hot Reference
DO 4/5 Com (53)
24V ~ Common Reference
Note: Between round brackets are reported the FX15 terminal
numbers.