An enclosure is used to shield the controller from electrical noise and airborne contaminants.
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Q2: Where line voltage variations to the PLC
Q3: When a grounding connection must be made
Q4: A diode can be connected in reverse-bias
Q5: Electromagnetic interference (EMI) may enter a PLC
Q6: Most solid-state switches will conduct a small
Q8: Running signal wiring and power wiring in
Q9: A properly installed grounding system is designed
Q10: A bleeder resistor can be connected to
Q11: Ground loop circuits cause problems by adding
Q12: PLC malfunctions due to electrical noise usually
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