Jencoder 260-58an-sl - Manual 'link'

If the connector wiggles, you may see intermittent signals. The spring lock requires a distinct “click”. If missing, replace the connector.

He verified the voltage was steady at V2 (10-28 VDC) . jencoder 260-58an-sl manual

He checked the ABZ channels , ensuring the pulse per revolution (PPR) was reading accurately up to its 10,000 potential. If the connector wiggles, you may see intermittent signals