The control of nuclear fuel manipulator crane(MC) drive system is essential for its running and other systems are designed surrounding the drive system.This paper gives a brief introduction to the composition and function of MC,analyses its drive mode and control method and applies PLC to control its frequency transducer directly to help the motor work more stable.Based on the control requirements of bridge,trolley,Hoist,the control system of bridge applies a drive mode with 2-drag-2 drive model on both sides and a multi-control method to realize simultaneous runningof two sides,1-drag-l model on through-going axes and closed loop control method finish the precise location of trolley,and the using of 1-drag-l model drive mode and closed loop control method solves the protect control difficulty of hoist which stops/starts repeatedly and changes speed.
