Pool Systems Automation: Difference between revisions
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NOTE: The flow meter was previously a GF Signet MK515.3P1. Erratic behavior prompted its replacement in early June 2021. | NOTE: The flow meter was previously a GF Signet MK515.3P1. Erratic behavior prompted its replacement in early June 2021. | ||
=== Power Budget === | |||
{| class="wikitable" | |||
!Item | |||
!Consumption | |||
!Comments | |||
|- | |||
|Lantronix PremierWave XN | |||
|94 mA | |||
|Per the spec sheet, the device consumes 2.25 W @ 30 VDC. Using the same figure for 24 VDC. | |||
|- | |||
|Pressure Tank Sensors (4) | |||
|80 mA | |||
|A quantity of 4 x 4-20 mA sensors. | |||
|- | |||
|Depth Sensor | |||
|20 mA | |||
|A single 4-20 mA sensor. | |||
|- | |||
|Flow Meter | |||
|20 mA | |||
|A single 4-20 mA sensor. | |||
|- | |||
|Digital Inputs (10) | |||
|85 mA | |||
|On the PLC base, X0 to X3 consume 13 mA, X4 to X23 consume 8.5 mA. Assuming ten digital inputs. | |||
|- | |||
|Relays (3) | |||
|112.5 mA | |||
|Each coil has a nominal resistance of 640 Ohms (37.5 mA @ 24 VDC). | |||
|- | |||
|Stack Light | |||
|50 mA | |||
|The LME-302L consumes 18 mA per red/yellow and 14 mA for green. | |||
|- | |||
|Programmed Stop Button | |||
|26 mA | |||
| | |||
|- | |||
|Total | |||
|487.5 mA | |||
| | |||
|} | |||
=== Drawings === | === Drawings === | ||