Author: Sharma, V.
Paper Title Page
WEPPD060 Distributed Control System for an Industrial Electron Beam Accelerator 680
 
  • V. Sharma
    BARC-EBC, Mumbai, India
 
  Funding: Bhabha Atomic Research Center, Trombay, Mumbai
A 3MeV DC Electron beam accelerator has been developed at Electron Beam Center, BARC, Mumbai, India. PLC based distributed control system has been incorporated for the control of the accelerator. A touch screen user interface (HMI) based control system provides a single point control of the whole accelerator. The accelerator operation data is stored in the memory Flash card of the HMI. The Accelerator has many subsystems such as scan magnet supply to scan the electron beam, Chiller unit to supply chilled water to the accelerator for cooling,vacuum system to maintain the vacuum inside the beam line,high voltage unit to generate the EHV for electron acceleration and other support system. All the above subsystems have to be controlled from the central location in order to operate the accelerator safely. Each of the subsystem has been controlled by a PLC controller independently and their control and safety is ensured by the program logic algorithm. After each of the subsystem has been tested separately all the PLCs are connected to the central PLC on modbus RS232 and modbus TCP-IP. The main central PLC has been programmed to fetch the data from individual subsystems PLCs and provide control and monitoring of the accelerator. In auto mode of operation setting the accelerator parameters operates all the subsystems automatically.