Given solenoid operating on 70VDC, pulsed at 2 to 3 times per second for duration of 5 to 6 seconds. Operation varies from 3 secs. to 1 min. cycles.
Require LED to fire with operation of solenoid.
Solenoid driver circuit is off limits to touch with modification.
Would a reed switch fire strapped to the external windings of the solenoid so
that 12VDC could be used to illuminate the LED?
Is there a cleaner way to accomplish this other than a 3.9K 1/2w resistor in series with the diode (2.5V @ 20ma) connected to the solenoid 70VDC?
Maybe 1/2w would get too hot so 1w would be better.
Require LED to fire with operation of solenoid.
Solenoid driver circuit is off limits to touch with modification.
Would a reed switch fire strapped to the external windings of the solenoid so
that 12VDC could be used to illuminate the LED?
Is there a cleaner way to accomplish this other than a 3.9K 1/2w resistor in series with the diode (2.5V @ 20ma) connected to the solenoid 70VDC?
Maybe 1/2w would get too hot so 1w would be better.