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Voltage drop
Thanks EVERYONE for the input. Let me add some clarification to my situation. I have five (5) relays located in the control panel housing a PLC. I have an air compressor located 1100 feet away. Three (3) of the relays are for control signals TO the compressor. Two (2) are for feedback...- GTodd
- Post #8
- Forum: Circuit design
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Voltage drop
I've got a 120V relay that pulls 5.5 mA at rated voltage. The specs say it will operate at 80% of rated voltage. My circuit length is 1100 ft (one way). I've done the voltage drop calculation for #14 AWG. The loss is negligible, but I'm concerned that simply following the formula might be...- GTodd
- Thread
- Replies: 15
- Forum: Circuit design
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Analog signal...mA vs. DC?
I'm designing a new controller that has several analog inputs...pressure and motor current. I have a choice of 4-20mA or 0-5VDC transducers. Is one type more desirable or beneficial over the other?- GTodd
- Thread
- Replies: 9
- Forum: Programmable logic controllers (PLC)
