Hi..., I have a final year project which is a PLC-based control system for a three-phase induction motor. I have an electromagnetic brake on the shaft of a 380 V, 6.63 A, 3.0 kW induction motor. The plan is to get maximum efficiency on different load conditions. I have written my PLC program already, and plan on testing the efficiency on 5 different rpms with 3 different load conditions on each speed. I need a control system for the brake, can anyone help me please? I need to be able to give instructions from the PLC.