Tolerances are part of our safety functions. Operational limits are used by our robot controller to set internal operational limits (not safety-related) to lessen nuisance stops and also prevent exceeding any safety function limit settings. Think of this as being the “cushion” of our system working (with as few nuisance stops as possible) while staying within the parameters of our safety limit settings. Tolerances and operational limits are “baked” into the control system and not user modifiable. They are basically the framework due to the processors and communications within which the robot operates. Use of internal operational limits prevents safety faults while allowing for fluctuations in the program behaviour. With operational limits, the robot will operate productively while safety function limits are not exceeded.