I have this display and a QS 273 and a Kelly 7230S.
https://de.aliexpress.com/item/4000149279229.html?spm=a2g0s.9042311.0.0.37f94c4dHAP212
You should connect the speed cable from the display to the phase.
If the display shows no speed, someone knows where the problem is.
https://de.aliexpress.com/item/4000149279229.html?spm=a2g0s.9042311.0.0.37f94c4dHAP212
You should connect the speed cable from the display to the phase.
If the display shows no speed, someone knows where the problem is.