Analyzing the causes of various trip events is helpful to improve reliability of a synchrotron light source. To identify the causes of trips at Taiwan Light Source (TLS), various diagnostics tools were employed. These diagnostic tools can capture beam trips, interlock signals of superconducting RF system, waveforms of the injection kickers, quench and interlock signals of the superconducting insertion device, and instability signals of the stored beam for post-mortem analysis. These diagnostic systems can routinely monitor signals and record beam trip events. Features of trip diagnostic tools are available now. System configuration and experiences will be summarized in this report.
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