proto DUNE DCS Xavier Pons Index proto DUNE
- Slides: 14
proto. DUNE DCS Xavier Pons
Index • proto. DUNE – Cold Electronic Interlock management • proto. DUNE – Cold Electronic Fan Control • proto. DUNE – CE&PD temperature flange control • proto. DUNE – Photon Detector interlock 2 1/23/2022 X. Pons
proto. DUNE Single Phase DCS PLC - Safety System - Photon Detector & LED’s Interlock Are executed in the main DCS PLC, Siemens S 7 -1500 3 1/23/2022 X. Pons
proto. DUNE Single Phase DCS – CE LV PL 506 Interlock The Cold Electronics Low Voltage PL 506 interlock is performed by the DCS-PLC and a “fail safe” control electrical circuit 4 1/23/2022 X. Pons
proto. DUNE Single Phase DCS – CE&Low Voltage Control The internal data of the WIBs is transmitted to DCS with the WINCC–DIM protocol. We did not apply action/interlock But can be easily implemented 5 1/23/2022 X. Pons
proto. DUNE Single Phase DCS – CE fan control Specifications - Each APA/Cold Electronic flange has 4 cooling fans. - According to J. Fried, if the fans stop blowing air while electronics on the PTC board reaches 50 °C. Important to monitor the status The installed fans have an error signal but is not Fail-Safe. With the Pull-Up resistor we have 0 V when there is an error in the fan. Cold Electronic Flange with 4 fans 6 1/23/2022 X. Pons
proto. DUNE Single Phase DCS – CE Fan Connection The 4 fans installed in the Cold electronic flange are cabled according this specifications drawing. Connected in a single Sub-25 Connector 7 1/23/2022 X. Pons
proto. DUNE Single Phase DCS – CE Fan Control We have prepared 2 crates, 3 U size, installed in the Rack 5 1 crate for controlling the 3 APA’s Ra. S Side 1 crate for controlling the 3 APA’s Da. S Side Both crates are powered from main 24 V DCS Fan Control Crate Da. S Side Fan Control Crate Ra. S Side 8 1/23/2022 X. Pons
proto. DUNE Single Phase DCS – CE Fan Control Circuit It consists basically in an electromechanical relay operated from DCS which allows the ON/OFF operation. The 24 VDC after the relay is connected directly to the main DCS PLC, for PL 506 Interlock evaluation. This is how are performed the control and the PL 506 interlock until now. 9 1/23/2022 X. Pons
proto. DUNE Single Phase DCS – CE Fan Control 10 1/23/2022 X. Pons
proto. DUNE Single Phase DCS – CE Fan Control 1 circuit = 1 CE flange (4 fan control) Fan ON/OFF control from DCS-PLC Measures the current of each fan and triggers an interlock in case of out of range Fuse protection for each fan To be implemented in proto. DUNE II 11 1/23/2022 X. Pons
proto. DUNE Single Phase DCS – CE&PD Flange Temperature Control 12 1/23/2022 X. Pons
proto. DUNE Single Phase DCS – CE&PD Flange Temperature Control 13 1/23/2022 X. Pons
proto. DUNE Single Phase DCS – Photon Detector & LED’s Interlock Another critical safety process executed by the DCS PLC is the interlock of the Photon detectors according LED’s Status Critical in the Dual-Phase with strong software/hardware failsafe interlock 14 1/23/2022 X. Pons