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Description
The Dalian Advanced Light Source (DALS), is a linear accelerator based on continuous wave superconducting radio frequency(SRF) technology aiming to produce high-quality electron beam with repetition rate up to 1 MHz. The cryogenic test facility is designed to provide the cooling capacities and maintain 2 K temperature operation for the SRF cavity and the cryomodules, which includes Horizontal Test Bench(HTB),Vertical Test Cryostat (VTC), Cryogenic Test Bench (CTB) and Injector Test Bench (ITB).The cryogenic control system consists of Programmable Logic Controllers (PLCs) with local human machine interfaces (HMIs) and the Experimental Physics and Industrial Controls System (EPICS) for normal operations and data acquisition. This paper reports on the design choices selected and experiences in installation and commissioning of the DALS cryogenic control system. After the second round cool-down PID parameters of the important devices in the cryogenic distribution system(CDS) are tuned.
