Nidec 4028 Fan

I have a Nidec fan it is connected and working properly. The tachometer reading I get is always 0 RPM (in red) even when the fan is running. This is how I have it in my config. Have I missed something?
pin: !fan_part_cooling_pin cycle_time: 0.01 enable_pin: PA9 tachometer_pin: ^PD13 tachometer_poll_interval: 0.0005
2 Replies
miklschmidt
miklschmidt14mo ago
check your fans datasheet for the specific tachometer specs. Refer to this section for tachometer configuration options: https://www.klipper3d.org/Config_Reference.html#fan
Andy
Andy13mo ago
Thanks I will let you know when I have it sorted. I have the tachometer working now. The issue was I had it connected to a fan header PD15. It is now connected to PG12 which is a 3 pin header and works perfectly.
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