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Precautions with Connecting Two-wire DC Sensors
Relation between OFF Current of Slave with Transistor Inputs
and Sensor Leakage Current
≥ I
I
OFF
leak
I
:
OFF current of a Slave with Transistor Inputs
OUT
I
:
Sensor's leakage current
leak
Connect a bleeder resistor if I
The bleeder resistor constant can be calculated using the following equation.
R ≤ (I
× R
+ V
)/(I
OFF
IN
F
leak
Power W ≥ (V
− V
2
)
CC
R
254
is greater than I
leak
− V
)
OFF
/R × 4 [allowable margin]
.
OFF
Appendix E
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