Hello,
I have bought a great value for money CNC spindle on AliExpress. Unfortunately the power supply is not isolated from mains. Since our European (Schuko) plugs are not polarised, a tossing of the coin of fate determines if the power supply is referenced to live or neutral. I will ground both the power supply enclosure and the spindle, but I also want to add a telltale for the aforementioned coin toss.
Would this work and be an acceptable solution:
-The HLK-5M05 is an isolated power supply, 230V AC to 5V DC, 5W.
-The B0505S is a 5V DC to 5V DC isolator, 1W.
-The load measures voltage, current and rpm of the spindle and is referenced to either A or B.
If it works as I intended, then the LED should only be lit when A is connected to live.
I have bought a great value for money CNC spindle on AliExpress. Unfortunately the power supply is not isolated from mains. Since our European (Schuko) plugs are not polarised, a tossing of the coin of fate determines if the power supply is referenced to live or neutral. I will ground both the power supply enclosure and the spindle, but I also want to add a telltale for the aforementioned coin toss.
Would this work and be an acceptable solution:
-The HLK-5M05 is an isolated power supply, 230V AC to 5V DC, 5W.
-The B0505S is a 5V DC to 5V DC isolator, 1W.
-The load measures voltage, current and rpm of the spindle and is referenced to either A or B.
If it works as I intended, then the LED should only be lit when A is connected to live.