We removed an old SSD 545 DC drive controlling an Old Bull DC motor and replace this with a new Parker 400kW 890PX AC Inverter to drive a new Elin water cooled AC motor. An AC30 Inverter was fitted to the water cooling system to regulate the cooling water flow on the motor. All safety interlocks were accomplished within the 890PX and AC30. The 890PX having Safe Torque Off wired and enabled. The new panel was integrated into the existing system which utilised an Allen Bradley 504 PLC and Allen Bradley Panelview 1400e.