9171100990 Rev R BE1-32R, BE1-32O/U Functional Description i
SECTION 3 • FUNCTIONAL DESCRIPTION
TABLE OF CONTENTS
SECTION 3 • FUNCTIONAL DESCRIPTION ........................................................................................... 3-1
INTRODUCTION.................................................................................................................................... 3-1
Current Sensing ................................................................................................................................. 3-1
Phase Rotation Sensitivity.................................................................................................................. 3-1
Sensing Input Types........................................................................................................................... 3-3
KW Transducer................................................................................................................................... 3-5
Comparator Circuits ........................................................................................................................... 3-5
Pickup................................................................................................................................................. 3-5
Timing................................................................................................................................................. 3-6
Outputs............................................................................................................................................... 3-7
Output Test Pushbuttons.................................................................................................................... 3-7
Power Supply ..................................................................................................................................... 3-7
Target Indicators ................................................................................................................................ 3-7
Figures
Figure 3-1. Function Block Diagram
.......................................................................................................... 3-1
Figure 3-2. Type E Sensing with ABC Rotation
........................................................................................ 3-2
Figure 3-3. Type E Sensing with ACB Rotation
........................................................................................ 3-2
Figure 3-4. Type B or V Sens
ing with ABC Rotation................................................................................. 3-2
Figure 3-5. Type B or V Sens
ing with ACB Rotation................................................................................. 3-3
Figure 3-6. Type A Sensing
....................................................................................................................... 3-3
Figure 3-7. Type B/Type V Sens
ing .......................................................................................................... 3-4
Figure 3-8. Type C Sensing
....................................................................................................................... 3-4
Figure 3-9. Type D Sensing
....................................................................................................................... 3-5
Figure 3-10. Type E Sens
ing..................................................................................................................... 3-6
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