Implementing led lighting with SR-ZG9101FA-RGBW
The fact that you have only connected power to one pair of (V+ &amp; V-) terminals is not the problem as both of the V+ are connected to each other and the same applies to both V- terminals.

The device has two pair of terminals for daisy chaining multiple led drivers.   

Take a look at this:

  

(Image Source)

I would recommend you to do some more research on the product page and contact the manufacturer regarding your issues.