Mario is right this is going to cause confusion. When my powertrac switches failsafe they illuminate no LED, when on they are green/red depending on fire state... the quasar mixer flashes red LEDs in its normal state, and has steady LEDs in failsafe....the old RF1 units do it the opposite way around....so thats 3 different failsafe indicators in one robot.
Im not sure of the benefit of failsafe indicators, If the power is on I cant see anyone approaching a robot with anything less than caution is safe whether your lights are flashing or not.
I think the power light is a good idea, as it tells you whether the link is in, but even this only tells you when its in, as a lack of lights could mean the link is out, OR the indicators have packed up.