Protect robot arm in safeoperation

Hello all,

I have KRC4 with safe operation. I have configured cell and protection zones as per requirement. I also have configured tool spheres for protecting tool and it is protecting against cell and protection zones. But the problem is robot is not protecting its arms or servo motor against zones.

Please suggest any method to protect robot arms.

I have already done this but wanted to know if there is anything else we can do apart from that as 3 monitoring spaces will be consumed by that.