TE 6770 Design and implementation of a versatile

Table of contents Universal Quench Detection System (u. QDS) • • • Introduction Radiation

Universal Quench Detection System (u. QDS) • • • Measures different voltages in the

Universal Quench Detection System (u. QDS) Why is it Universal? • FPGA based with

Radiation test u. QDS radiation tolerance test at CHARM radiation facility • Triple Modular

First real protection Wiggler magnet protection in SM 18 • The u. QDS as

First real protection Only one voltage measurement available • New logics used: • •

First real protection • This magnet has a very complicated behavior depending on the

First real protection The Wiggler magnet was correctly trained and the u. QDS protected

FAIR protection Currently developing FW for protection of FAIR magnets • Each u. QDS

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TE 6770 – Design and implementation of a versatile readout system for a second-generation quench detection system FTEC 2017 3 rd Workshop Daniel Blasco Serrano 12 -Nov-18 TE-MPE-EP 1

Table of contents Universal Quench Detection System (u. QDS) • • • Introduction Radiation test First real protection • New logics • Dynamic threshold • FAIR 12 -Nov-18 TE 6770 3 rd Workshop 2

Universal Quench Detection System (u. QDS) • • • Measures different voltages in the magnet and applies a logic to detect an increase of resistance (quench) In case of quench, triggers the quench heaters or Interlocks connected to u. QDS Fast and precise aquisition system 12 -Nov-18 TE 6770 3 rd Workshop 3

Universal Quench Detection System (u. QDS) Why is it Universal? • FPGA based with up to 16 ADC connected which can be combined in any way • • 4 voltage measurements and 1 current measurement 1 voltage measurement, 1 current measurement and 1 di/dt measurement 12 voltages and 3 currents measurement (3 magnets) Samples are filtered and processed independently Any logic using any combination of channels can be applied Up to 16 heaters or Interlocks can be triggered Online acquisition system and postmortem 12 -Nov-18 TE 6770 3 rd Workshop 4

Radiation test u. QDS radiation tolerance test at CHARM radiation facility • Triple Modular Redundancy for all FPGA registers and RAM • RS 485 communication (fast readout not possible) 12 -Nov-18 TE 6770 3 rd Workshop 5

First real protection Wiggler magnet protection in SM 18 • The u. QDS as the main Quench Protection Device (Quench miss Magnet burnt!!) • Safety mechanisms added to the firmware/software • Register masking • Register automatic check 12 -Nov-18 TE 6770 3 rd Workshop 6

First real protection Only one voltage measurement available • New logics used: • • Current measure (provided by SM 18) • Current derivative measure (di/dt sensor) 12 -Nov-18 TE 6770 3 rd Workshop 7

First real protection • This magnet has a very complicated behavior depending on the current • • • Design of dynamic threshold entity Very strict and well documented tests performed 2 u. QDS devices used (redundancy) 12 -Nov-18 TE 6770 3 rd Workshop 8

First real protection The Wiggler magnet was correctly trained and the u. QDS protected it from several quenches 12 -Nov-18 TE 6770 3 rd Workshop 9

FAIR protection Currently developing FW for protection of FAIR magnets • Each u. QDS will protect 3 magnets independently (15 input channels used) • Communication between redundant u. QDS crates for post-mortem data synchronization 12 -Nov-18 TE 6770 3 rd Workshop 10