How to sync panner animated material with Blueprint animation?

Okay, I see that makes sense with the Texture size, then.

I marked those values, so my conveyor moves and stops automatically and constantly. Move time: 8 sec, Wait time: 5 sec.

What I need to do is to make a Material animation to move and wait conveyor belt texture with exactly the same intervals as the actual blueprint moves an object along the conveyor. Or in other words, I need to make a Panner effect to stop the moving texture along the Y axis for 5 seconds. and keep moving for the next 8 seconds after that, repeating the cycle.

Maybe it’s something to deal with Time rather than speed: