Powering a Raspberry Pi from Panel 24 VDC: The 1606 Supply, the Ride-Through and the Shutdown Signal

The DIN rail left to right: the 1606-XLE240E with DC-OK on 13/14, the 1606-XLSBUFFER24 on the same bus, a 2 A branch fuse, the 24 V to 5.1 V converter, and the Pi with GPIO17 fed from the contact

A 1606-XLE240E Series B has a DC-OK relay on terminals 13 and 14 that closes while the 24 V bus is above 90 % of its set point, and a Raspberry Pi 4 needs 5.1 V and somewhere between five and twenty seconds of notice to halt without corrupting its card. Raspberry Pi panel power … Read more

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