Cryomodule Control System of Injector Ⅱ for Accelerator Driven Sub-critical System

The cryomodule is an important subsystem of the injector Ⅱ for accelerator driven sub-critical system (ADS), whose performance will determine the quality of the superconducting section. A remote control system based on EPICS was introduced to serve the cryomodule and validate its performance. PLC and serial port servers were chosen to implement the control functions. The supervisory control procedure was programmed with LabVIEW, and the communication with EPICS was implemented by using DSC module. The pressure fluctuation can be controlled within ±100 Pa through the PID algorithm. The control system can fulfill the design requirement, and contribute to the 5 MeV beam commission.