Dynamic control of the grinding circuits do not involve any substantially multivariable characteristics with strong interactions. In order to maximise throughput or grinding performance, the equipment needs to run at its operating constraints. For the subcircuits, only one constraint will be active at a time (1 constraint loop). There are no multivariable interaction effects and the process is dominated by Multiple Input Single Output (MISO) and not Multiple Input Multiple Output (MIMO).
In many grinding circuits, maximum performance (grind or throughput) is achieved at a constraint of the equipment. In this case no formal optimisation is required to set the operating setpoints of the ARC scheme. Only constraint control is required (which is contained within the ARC scheme) along with the corresponding equipment limit setpoints.
