If the maximum single pass fillet weld size is 3/16-inch, the 1/2-inch fillets would require multiple beads.
The 1/2-inch fillet weld would have a face width of 0.707-inches, so that exceeds the maximum weave width per your post. Multiple beads would be required to span the weld face.
If math isn't your strong suite, try drawing the fillet welds to scale and measure the weld face.
Al