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Sensor power derived externally – Rockwell Automation T8846 Trusted Speed Monitor IFTA (SIFTA) User Manual

Page 21

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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)