Rockwell Automation T8846 Trusted Speed Monitor IFTA (SIFTA) - Manual (Page 21)

Trusted
TM
Speed Monitor IFTA T8846
Issue 2 Apr 10 PD-T8846 21
4.2.2. Sensor Power Derived Externally
Figure 7 shows a typical connection scheme for field powered speed sensors with open collector
outputs. This arrangement uses an external fused field supply.
Figure 7 Active Open Collector Output (Externally Derived Field Supply)