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Owners Manual ARC4 Detector System

1. 9 2 Non Pressurized Arc Viewport The non pressurized arc viewport provides an optical interface with a FSMA connector for a non pressurized microwave device to be connected with the Arc Detector Module It consists of a 7 flat flange with 4 through holes for mounting to a waveguide wall A centre hole with a diameter 4mm has to be provided in the waveguide The dimensions of the viewport are shown in Fig 12 0 50 0 10 0 37 12 7 4x 92 60 9 50 mounting hole 1 4 36 UNS 2A thread Dee e Assembly Instructions 0 12 min 3 min 4x female thread through Waveguide wall In this Area KLambaes 2 Evenness G o 10 Fig 12 Non Pressurized Arc Viewport P000032553 DOC 29 30 P000032553 butter ge a AFT 9 1030000079 001 Approved cweir Date 08 07 2011 GB microwave ARC4 Detector System Page 30 30 9 3 Non Pressurized Arc Viewport with Optical Test Port The Non Pressurized Viewport with Optical Test Module Port provides an interface with two FSMA connectors that can be connected with the Optical Arc Detector Test Module along with the Arc Detector Module see also Fig 10 It is typically mounted to a microwave waveguide wall via a 4 holes flange A detailed description of the dimensions and assembly instructions of the viewport are shown in the Fig 13 Note This type of viewport is generally not supported or recommended as a standard viewport in AFT high po
2. 001 Approve Wei Date 08 07 2011 GB microwave ARC4 Detector System Page alae 3 ARC4 Arc Detector Module The Arc Detector Module detects the light produced by an arc by using a high sensitivity photodiode and gives out the Arc out signal 3 1 Input and Output Signals 3 1 1 Input Signal Light detector Optical input Receives arc signal through optical fiber cable coming from view port Connector type FSMA 1 4 36 UNS 2A ARC4 001 00 D01 Fig 2 ARC4 Arc Detector Module Card ARC4 001 00 3 1 2 Output Signals Light out Analog output voltage of the light detector Range OV to 3 5V output impedance 1kQ Connector type BNC female Arc out Digital output signal of the arc detector which can be chosen between TTL or open collector O C by setting the jumpers TTL and O C on the PCB as follows 1 O C closed amp TTL open 2 TTL closed amp O C open O C output signal default TTL output signal A Warning Do not close both TTL amp O C It will damage the device Connector type BNC female P000032553 DOC 8 30 P000032553 FR a AFT 9 1030000079 001 Approved C Weil Date 08 07 2011 EB microwave ARC4 Detector System Page 9 30 3 1 3 Remote Control The remote control interface is designed to control the device by computer It has both digital Arc out signals TTL and O C and Power fail out signal which detects the Arc Detector Module power failure con
3. 001 Approved Cwen Date GB microwave ARC4 Detector System Page 15 30 4 3 Global Reset and Global Test Function Global Reset The Global Reset function performs a Reset function as described in section 3 1 5 but on all applied Arc Detector Modules This can be done in two ways 1 Pushing the corresponding Global T R button toggling between test amp reset at the front panel of the ARC4 Detector System This button works only and only if an interface module is present 2 A Global reset signal can be sent either through the Pin11 of X2 or Pin11 of X8 at the DB15 connectors of the interface module Global Test The Global Test function performs a Test function as described in section 3 1 5 but on all applied Arc Detector Modules This can be done in two ways 1 Pushing again the Global T R button toggling between test amp reset at the front panel of the ARC4 Detector System 2 A Global Test signal can be sent either through the Pin12 of X2 or Pin12 of X8 at the DB15 connectors of the interface module 4 4 Global Arc Signal Standard Logic A global arc output signal GLBARC is generated by a logical combination of up to 16 Arc Detector Module signals as inputs shown in Fig 5 This logic implies that if there is an arc detected by any of the Arc Detector Modules arc1 arc16 it triggers gives out the global arc signal GLBARC The INV signal is given by the corresponding INV jumper setting see section 4 2 2
4. 1 Output arc1 arc2 arc3 arc4 GLBARC 0 0 0 0 0 0 0 0 1 1 0 0 1 0 1 0 0 1 1 1 0 1 0 0 1 0 1 0 1 1 0 1 1 0 1 0 1 1 1 1 1 0 0 0 1 1 0 0 1 1 1 0 1 0 1 1 0 1 1 1 1 1 0 0 1 1 1 0 1 1 1 1 1 0 1 1 1 1 1 1 Table 2 Logic B P000032553 DOC 20 30 AFT GB microwave P000032553 tok 9 1030000079 001 _ Approves ARC4 Detector System Date Page Input SO S1 1 0 Output arc1 arc2 arc3 arc4 GLBARC 0 0 0 0 0 0 0 0 1 0 0 0 1 0 0 0 0 1 1 0 0 1 0 0 0 0 1 0 1 0 0 1 1 0 0 0 1 1 1 0 1 0 0 0 0 1 0 0 1 0 1 0 1 0 0 1 0 1 1 0 1 1 0 0 0 1 1 0 1 0 1 1 1 0 0 1 1 1 1 1 Table 3 Logic C Input SO S1 1 1 Output arc1 arc2 arc3 arc4 GLBARC 0 0 0 0 0 0 0 0 1 0 0 0 1 0 0 0 0 1 1 0 0 1 0 0 0 0 1 0 1 1 0 1 1 0 1 0 1 1 1 1 1 0 0 0 0 1 0 0 1 1 1 0 1 0 1 1 0 1 1 1 1 1 0 0 0 1 1 0 1 1 1 1 1 0 1 1 1 1 1 1 P000032553 DOC Table 4 Logic D Neha Gupta C Weil 08 07 2011 21 30 21 30 P000032553 Author Neha Gupt a AFT 9 1030000079 001 Approve C Weil Date 08 07 2011 GB microwave ARC4 Detector System Page g 6 ARCA Optical Test Board The Optical Test Board is designed for precisely testing the functionality of the Arc Detector Module along with the multimode glass fiber cable It transforms the TTL input pulse minimum of 10
5. maximum up to 4 Arc Detector Module signals described in section 5 P000032553 DOC 4 30 P000032553 a AFT 9 1030000079 001 Approved Well Date 08 07 2011 GB microwave ARC4 Detector System Ge St A Warning Do not expose the device and the fiber optic cable to x rays and gamma rays because high energy radiations can opaque the light cable In x rays and gamma rays environment the device and the standard optical cable have to be protected by lead housing A lead coated optical fiber cable is also available on request Switch of mains power before pulling out in any card modules Status LED JU LLL AAT HETT LOCO TETTE Arc Sentr wel Te CH2 cua y 2 CHS CHa com e a AF v 9 o o 3 3 CH8 CH9 CHIO eu CH12 CH13 CH1 MB microwave D o o o o o e e Pope TIR TIR TR R UR WR IR TIR 933333 AD dm on UR WR T R GI T R TR Obal 7R 00000006060 e ARC 4 000 00 e Hi CH7 cHs CH9 CH10 rg ee b Backside panel of the ARC4 detector system connectors with 17 module slots for max 16 ARC detector modules and 1 System Interface Module P000032553 DOC 5 30 P000032553 Author Neha Gupt a AFT 9 1030000079 001 Approve C Wei Date 08 07 2011 EB microwave ARC4 Detector System Page 6 30 oo 300 00 48 00 0000000000000000 O handle SubD and 2xBNC for each module c Dimensions of the ARC4 detector system Arc
6. ms into a light pulse of about one millisecond only This light pulse than can be send to the Arc Detector Module through the optical fiber as shown in Fig 10 to perform the test For performing the test directly at the microwave waveguide AFT offers a special Arc detector viewport with an optical test port see section 9 for details The test board can give out two output signals H1 and H2 for testing two Arc Detector Modules at the same time Sege control H2 H1 AOE Fig 8 ARC4 Optical Test Board ARC4 006 00 A01 6 1 Input and Output Signals 6 1 1 Input Signal Remote Control Remote control interface is an Input interface Connector type DB9 female Pin Description 1 Input as TTL pulse for light pulse output at H1 2 Input as TTL pulse for light pulse output at H2 3 9 Internal ground P000032553 DOC 22 30 Date 08 07 2011 GB microwave ARC4 Detector System Page sl P000032553 Author Neha Gupta a AFT 9 1030000079 001 Approved Wei 6 1 2 Output Signals H1 Optical output Gives out a light pulse Connector type FSMA 1 4 36 UNS 2A H2 Optical output Gives out a light pulse Connector type FSMA 1 4 36 UNS 2A 6 2 Product Specifications Minimum time duration of input pulse 10 ms Input level 5VTTL Storage temperature 40 C to 85 C Operating te
7. sentry Fig 1 Modular ARC4 Detector System in a 19 rack P000032553 DOC 6 30 P000032553 Author Neha Gupta a AFT 9 1030000079 001 Approved Wei Date 08 07 2011 EB microwave ARC4 Detector System Page 7 30 2 Scope of supply Depending on the customized configuration the ARC4 Detector system is supplied with the following components Product name ARCA 19 housing 19 empty 115V or 230V including 1x 19 housing with 17 cards slots including power supply 1x Mains connector IEC 60320 C13 for mains cable assembly 1x Owners Manual ARCA Arc Detector Module for 19 each module includes 1x ARC4 Arc detector module card 1x DB9 male connector for cable assembly 1x Standard metal hood for DB9 connector 2x BNC male connector for coaxial cable assembly ARCA System Interface Module Standard optional including 1x ARCA System interface module card 2x DB15 male connector for cable assembly 2x Standard metal hood for DB15 connector ARCA System Interface Module Selectable logic optional including 1x ARCA System interface module card 2x DB15 male connector for cable assembly 2x Standard metal hood for DB15 connector ARC4 Optical Test Board optional including 1x ARC4 Optical test module card 1x DB9 male connector for cable assembly 1x Standard metal hood for DB9 connector P000032553 DOC 7 30 P000032553 Author Neha Gupt a AFT 9 1030000079
8. up extremely high electric field strength If the disruptive strength of the air or the gas filled in the device exceeds because of humidity or contamination settles in the device electrical breakdown in the form of arcing is possible In this case part of the microwave energy is reflected and the arc travels back to the source If the arc energy reaches values above 5J waveguide and microwave source might be subject to considerable damages and might even be completely destroyed Up to an energy level of about 1J the energy dissipation induced by an arc leads to an evaporation of particles contaminating the waveguide only AFT high sensitive arc detectors detect the light emitted by an arc within microseconds and even with small light quantities the very first indication of an arc emergence Their output signal emerges after about 1J of energy has been dissipated and it can be used as interlock signal starts switching off of the microwave generator in time Due to our efficient detectors permanent damages to the system can be avoided The ARC4 detector system is a modular expansible system in a 19 rack shown in Fig 1 The basic set up consists of a 19 housing which includes a power supply available for 115VAC or 230VAC and a bus system for up to 17 modules The system can be equipped with up to 16 ARC4 Arc Detector Modules and optional components such as one ARC4 System Interface Module and ARC4 Optical Test Board A low loss multimode gla
9. P000032553 FR f a AFT 9 1030000079 001 Approved C Weil Date 08 07 2011 EB microwave ARC4 Detector System Page 1 30 Owners Manual ARC4 Detector System P000032553 DOC 1 30 Date 08 07 2011 GB microwave ARC4 Detector System Paga pl g P000032553 FR a AFT 9 1030000079 001 Approved C Weil Contents ae To EEE EEE EE 4 2 EECH Eegenen 7 3 ARC4 Arc Detector Module rrrnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn 8 3 1 Inp tand OP Svanen 8 AEE ee EE EN 8 EEE GT EST EEE EEE EE EEE 8 3 1 3 Remote Control EEE 9 3 1 4 Signal SEG dd dekke 10 3 1 5 Reset ant Test Function ge 10 3 1 6 Power SE 11 3 2 Detector Delay rn 11 3 3 Test Points Optional USE Lee 11 K WR Geelen 12 4 ARCA System Interface Module Standard nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnns 13 4 1 Input and Ee ele II 13 08 e SE EEE EEE 13 4 1 2 OG SOAS redda 13 4 2 Signal Selection EE EE EE ENE EN 14 4 2 1 Input Signal SCISCUION EE 14 4 2 2 Output Signal type Selection ccccccccsssseeseeseseeecceenscaassseseeesensnsees 14 4 3 Global Reset and Global Test Function ccesseeeeeeeeeeeeeeeeeeeeeeeeeeeees 15 4 4 Global Arc Signal Standard Logo 15 5 ARC4 System Interface Module Selectable Logic rrrrrnnnnnnnnnnnnnnnnnnnnnnne 16 5 1 Input and Output SIGN AS vaser deadel 16 31 1 MSN 16 5 1 2 Q tp t Signals EEE NE 16 5 2 SOA Selection ee 17 5 2 1 Inp
10. Selectable Logic is been designed considering coincidental arc detection It gives the user a possibility to select the most appropriate logic for a specific application A global arc output signal GLBARC is generated by a logical combination of up to 4 Arc Detector Module signals arc1 arc4 as inputs As illustrated in Fig 7 four different logic combinations A B C D can be selected by using the multiplexer switches SO and S1 which are the DIP switches of channels ARC15 and ARC16 respectively as shown in Fig 6 The INV signal is given by the corresponding INV jumper setting see section 5 2 2 and can be used to invert the GLBARC signal Multiplexer DIP switch positions ARC15 SO 1 5 4 1 Logic A default Logic A can be selected by setting S0 0 S1 0 It implies that For any pairs arc1 arc2 and arc3 arc4 if there is an arc detected by either of these pairs of the Arc Detector Modules it triggers a global arc signal GLBARC The output of different combination of 4 inputs is presented in Table 1 5 4 2 Logic B Logic B can be selected by setting S0 0 S1 1 It implies that If there is an arc detected by any Arc Detector Modules arc1 to arc4 it triggers a global arc signal GLBARC The output of different combination of 4 inputs is presented in Table 2 P000032553 DOC 18 30 P000032553 a AFT i 9 1030000079 001 Lernen Cwen GB microwave ARC4 Detector System Page 19 30 5 4 3 Logic C Logic C can be selecte
11. and can be used to invert the GLBARC signal a acl ai acti ach SI a arch a ai arc Fig 5 Logic of the standard ARC4 System Interface Module P000032553 DOC 15 30 P000032553 Author Neha Gupta a AFT 9 1030000079 001 Approved Wei Date 08 07 2011 GB microwave ARC4 Detector System Page iga 5 ARCA System Interface Module Selectable Logic The System Interface Module with Selectable Logic gives out a single Global Arc out signal GLBARC in TTL logic which is a logical combination of maximum up to 4 Arc Detector Module signals This module allows the user to choose between 4 different logical combinations described in section 5 4 All Arc Detector Module output signals are separately available as TTL signals In addition the interface card has two TTL inputs for remote control of the global reset and the global test function 5 1 Input and Output Signals F1 DB15 xa DIP switches Multiplexer DIP switches for logic selection ARC15 S0 ARC16 S1 DB15 x8 INV FN ARC4 002 00 202 Fig 6 ARC4 System Interface Module Card for Selectable Logic X2 and X8 input output connectors Connector type DB15 5 1 1 Input Signals X2 and X8 Pin 11 TTL input global reset signal refer to
12. d by setting S0 1 S1 0 It implies that If there is an arc detected by all of the Arc Detector Modules arc1 to arc4 it triggers a global arc signal GLBARC The output of different combination of 4 inputs is presented in Table 3 This logic works if and only if all four detector module are present 5 4 4 Logic D Logic D can be selected by setting SO 1 S1 1 It implies that For the pairs arc1 arc2 and arc3 arc4 if there is an arc detected by any one of each pairs of a Arc Detector Modules it triggers a global arc signal GLBARC The output of different combination of4 inputs is presented in Table 4 This logic works if and only if all four detector module are present arc1 arc2 arc3 default arc4 OUT oo W gt Selection Dip Switch Fig 7 Selectable logic of the ARC4 System Interface Module P000032553 DOC 19 30 Date 08 07 2011 GB microwave ARC4 Detector System Page 20 30 P000032553 FR a AFT 9 1030000079 001 Approved Cowen The tabular results of these logics are shown as follows Input S0 S1 0 0 Output arc1 arc2 arc3 arc4 GLBARC 0 0 0 0 0 0 0 0 1 0 0 0 1 0 0 0 0 1 1 1 0 1 0 0 0 0 1 0 1 0 0 1 1 0 0 0 1 1 1 1 1 0 0 0 0 1 0 0 1 0 1 0 1 0 0 1 0 1 1 1 1 1 0 0 1 1 1 0 1 1 1 1 1 0 1 1 1 1 1 1 Table 1 Logic A Input SO S1 0
13. dition For details refer to section 2 1 6 It also has a Reset and a Test input from the computer to delete the previous output and to test the current status of arc respectively For detail explanation refer to section 3 1 5 Connector type DB9 female Pin Description 1 Arc out Open collector output 2 Power fail out Open collector output 3 Internal ground 4 5V internal operating voltages at 4 7 KQ 5 Arc out TTL output 6 9 Input signals for remote control of the Reset and Test switches Power Arcout 5V Ground failout Arc out TTL Sign 4 7k Earth open col open col Reset relay Test relay 5V 10mA 0 5s 5V 10mA 0 5s Fig 3 Remote Control DB9 connector P000032553 DOC 9 30 P000032553 FR a AFT 9 1030000079 001 Approved C Weil Date 08 07 2011 EB microwave ARC4 Detector System Page 10 30 3 1 4 Signal Selection The jumpers F P and O C on the PCB of the Arc Detector Module as shown in Fig 2 are responsible for the following selections The jumper F P selects an auto reset or manual reset function for the Arc out signals See section 3 1 5 for details on reset functions F P Jumper open Auto reset after about 100us default The Arc out signal stays for about 100us and comes back to zero in case of no light arc at the Light detector input closed Manual reset is required The Arc out signal stays until the Reset function is performed by pus
14. equired for sending an arc out signal when an arc is detected It depends on the strength of the light signal Typically the delay time is between Zus strong signal and 7us weak signal 3 3 Test Points optional use In case of a power failure two test points TP1 TP3 can be checked These two test points are present on the backside of the PCB The voltage with reference to ground at these test points in case of no power failure should be TP1 5 mv to 10 mV When the light detector has no light signal TP1 ca 1 2 V When the light detector has daylight signal TP3 50 5 mV A constant reference voltage P000032553 DOC 11 30 P000032553 Author Neha Gupt a AFT 9 1030000079 001 Approve Wei Date 08 07 2011 EB microwave ARC4 Detector System Page 12 30 3 4 Product Specifications Absolute maximum ratings Storage temperature 40 C to 85 C Operating temperature full power 0 C to 40 C Analog output signal Light out Voltage range OV to 3 5V At output impedance of 1kQ O C output signal Arc out and DB9 Pin1 Open collector current 50mA Open collector voltage 50V Open collector resistor 470 Q TTL output signal Arc out and DB9 Pin5 TTL output VOH IOH 1mA 4 67V HIGH TTL output VOL IOL 1mA 0 33V LOW Relays for remote Test and Reset functions Voltage 5V Current 10mA Specifications for typical operating conditions at 25 C Delay time for arc de
15. hing T R button or sending a reset signal manually The O C jumper selects the type of Arc out signals TTL and O C as follows O C Jumper open Active high outputs default When an arc is detected the TTL output goes high and the Open collector stops conducting and visa versa when there is no arc closed Active low outputs When an arc is detected the TTL output goes low and the Open collector starts conducting and visa versa when there is no arc 3 1 5 Reset and Test Function The status of an arc signal is stored in a flip flop and indicated by a corresponding LED located at the front panel of the ARC4 Detector System Arc sentry A green LED status indicates the zero value of the flip flop i e no arcing The red LED status displays the one value of the flip flop i e the presence of an arc To check the functionality of Arc Detector Module and to bring it back to the normal functioning state the Test and Reset function are used which are described as follows Reset The reset function sets the value of the flip flop to zero in case of no light at the Light detector input of the Arc Detector Module This can be done in two ways 1 Auto reset It is an automatical reset of all arc output signals of the detector module after about 100us For a reset of the Arc LED indicator a manual reset needs to be performed 2 Manual reset It is anon automatic or a manual way of resetting the system This can be do
16. mperature 0 C to 40 C Wave length of Light pulse at output 880 nm P000032553 DOC 23 30 Date 08 07 2011 P000032553 Author Neha Gupt a AFT 9 1030000079 001 Approve Wei EB microwave ARC4 Detector System Page 24 30 7 Power Supply Specification The power supply module is included in the ARC4 19 rack housing It is available in 230VAC and 115VAC configuration Product Specifications Absolute maximum ratings Storage temperature 0 C to 70 C Operating temperature full power 0 C to 40 C AC line input Input range strapped for 115VAC 93VAC to 127VAC Input range strapped for 230VAC 187VAC to 252VAC Line frequency 50Hz to 60Hz Line fuse internal 1A lag Power fail 5VDC and 0 3ADC Power TOVA Output voltage 115 230VAC 9VDC Output current 3ADC P000032553 DOC 24 30 P000032553 Author Neha Gupt a AFT 9 1030000079 001 Approve Wei Date 08 07 2011 B microwave ARC4 Detector System Page 25 30 8 Fibre Optic Cables In connection with the ARC4 Detector System AFT offers special low loss fibre optic cables that are not included in the ARC4 standard scope of supply 8 1 Multimode Glass Fibre Cable The multimode cable is a bundle of several glass fibers glued together at the ends and terminated with FSMA standard coupling connectors Cables are available in standard length of 2 5m 5m 10m 20m 30m 50m and 75m Customized lengths are available on request with maxim
17. n 6 arc out signal arc6 Pin 7 arc out signal arc7 Pin 8 arc out signal arc8 P000032553 DOC 13 30 P000032553 Author Neha Gupt a AFT 9 1030000079 001 Approve C Weil Date 08 07 2011 EB microwave ARC4 Detector System Page 14 30 X8 Pin 1 arc out signal arc9 Pin 2 arc out signal arc10 Pin 3 arc out signal arc11 Pin 4 arc out signal arc12 Pin 5 arc out signal arc13 Pin 6 arc out signal arc14 Pin 7 arc out signal arc15 Pin 8 arc out signal arc16 X2 and X8 Pin 9 5V 10mA max fused 250mAF Pin 10 GLBARG global arc output signal see 4 4 Pin 13 15 ground 4 2 Signal Selection 4 2 1 Input Signal Selection The DIP switches ARC1 ARC16 are used to select the arc detector signals that are processed in the system interface module and provided as output signals at X2 and X8 Right switch position signal is selected default Left switch position signal is not selected Example for DIP switch positions ARC1 is selected default sl ARC2 is selected default ARC3 is not selected 4 2 2 Output Signal type Selection The jumper INV on the PCB of the System Interface Module as shown in Fig 4 is responsible for the type of all output signals described as follows INV Jumper closed INV 1 all output signals are active low default open INV 0 all output signals are active high P000032553 DOC 14 30 P000032553 a AFT 9 1030000079
18. ne in two ways 2 a Pushing the corresponding T R button which toggles between test and reset at the front panel of the ARC4 Detector System 2 b A remote reset signal can be sent through the Pin8 9 of the DB9 connector at the backside panel of the Arc Detector Module P000032553 DOC 10 30 P000032553 a AFT 9 1030000079 001 Approved Cwen Date GB microwave ARC4 Detector System Page 11 30 Test In the test function a light pulse is sent using an internal LED to the Light detector to perform the test of the hardware functionality of an Arc Detector Module This can be done in two manual ways 1 Pushing again the corresponding T R button which toggles between test and reset at the front panel of the ARC4 Detector System 2 A remote test signal can be sent through the Pin6 7 of the DB9 connector at the backside panel of the Arc Detector Module 3 1 6 Power Control Function Power failures occur when the supply voltage 5V or 5V in an Arc Detector Module decreases by 0 2 V It can be detected by the Power fail out signal available at Pin2 of the DB9 connector The jumper PWR on the PCB of the Arc Detector Module as shown in Fig 2 is used to send the Power fail out signal as the Arc out signal PWR jumper Closed Power fail out signal is given out as an Arc out signal default Open Power fail out signal is not given out as an Arc out signal 3 2 Detector Delay Time The delay time is the time r
19. r INV on the PCB of the System Interface Module as shown in Fig 6 is responsible for the type of all output signals described as follows INV Jumper closed INV 1 open INV 0 all output signals are active low default all output signals are active high P000032553 DOC 17 30 P000032553 FR a AFT 9 1030000079 001 Approved C Weil Date 08 07 2011 EB microwave ARC4 Detector System Page dn 5 3 Global Reset and Global Test Function Global Reset The Global Reset function performs a Reset function as described in section 3 1 5 but on all applied Arc Detector Modules This can be done in two ways 1 Pushing the corresponding Global T R button toggling between test amp reset at the front panel of the ARC4 Detector System This button works only and only if an interface module is present 3 A Global reset signal can be sent either through the Pin11 of X2 or Pin11 of X8 at the DB15 connectors of the interface module Global Test The Global Test function performs a Test function as described in section 3 1 5 but on all applied Arc Detector Modules This can be done in two ways 1 Pushing again the Global T R button toggling between test amp reset at the front panel of the ARC4 Detector System 2 A Global Test signal can be sent either through the Pin12 of X2 or Pin12 of X8 at the DB15 connectors of the interface module 5 4 Global Arc Signal Selectable Logic The ARC4 System Interface Module with
20. rt with Optical Test Port connects the ARC4 Optical Test Arc Detector Module along with the ARC4 Arc Detector module as shown in Fig 10 19 ARC 4 system with up to 16 slots for modules test and interface modules ARC 4 common interface module se ARC 4 module ARC 4 module opt test module 2 e E LA ka Ki CPptical fibers Pressurized viewport Non Pressurized viewport Non Pressurized viewport with optical test port Fig 10 Connections between ARC Viewports ARC4 Detector Modules and the ARC4 Optical Test Board P000032553 DOC 27 30 P000032553 Author Neha Gupt a AFT 9 1030000079 001 Approved C Weil Date 08 07 2011 GB microwave ARC4 Detector System Page Gen 9 1 Pressurized Arc Viewport The pressurized arc viewport provides an optical interface with a FSMA connector for a pressurized microwave device to be connected with the Arc Detector Module It has an pressure tight interface which mounts with a M12x1 thread into the wall of a waveguide The main dimensions of the viewport are shown in Fig 11 M12x1 i FSMA Connector male thread 1 4 36 UNS 2A thread Assembly Instructions 0 20 5 Waveguide wall M12x1 female thread Waveguide wall 2 Evenness lo Fig 11 Pressurized Arc Viewport with M12x1 mounting thread P000032553 DOC 28 30 P000032553 a AF 9 1030000079 001 Lenze Gs Dm erzeeusce microwave ARC4 Detector System Page 29 30
21. section 5 3 Pin 12 TTL input global test signal refer to section 5 3 TTL input VOH 3 6V lt VOH lt 5V HIGH TTL input VOL OV lt VOL lt 1V LOW 5 1 2 Output Signals X2 Pin 1 arc out signal arc1 Pin 2 arc out signal arc2 Pin 3 arc out signal arc3 Pin 4 arc out signal arc4 Pin 5 arc out signal arc5 Pin 6 arc out signal Pin 7 arc out signal arc7 P000032553 DOC 16 30 P000032553 Author Neha Gupt a AFT 9 1030000079 001 Approve C Weil Date 08 07 2011 GB microwave ARC4 Detector System Page 436 Pin 8 arc out signal arc8 X8 Pin 1 arc out signal arc9 Pin 2 arc out signal arc10 Pin 3 arc out signal arc11 Pin 4 arc out signal arc12 Pin 5 arc out signal arc13 Pin 6 arc out signal arc14 Pin 7 arc out signal arc15 Pin 8 arc out signal arc16 X2 and X8 Pin9 5V 10 mA max fused 250mAF Pin 10 global arc output signal GLBARC see 4 3 Pin 13 15 ground 5 2 Signal Selection 5 2 1 Input Signal Selection The DIP switches ARC1 ARC16 are used to select the arc detector signals that are processed in the system interface module and provided as output signals at X2 and X8 Right switch position signal is selected default Left switch position signal is not selected Example for DIP switch positions ARC1 is selected default sm ARC2 is selected default ARC3 is not selected 5 2 2 Output Signal type Selection The jumpe
22. ss fiber cable transfers the light of an arc from a viewport on the microwave device to the optical input of the ARC4 Detector Module The connector type used on both sides is FSMA UNS 2A thread For a description about the AFT Multimode Glass Fiber Cable and AFT ARC Viewports refer to section 8 and 9 respectively The basic function of an Arc Detector Module is to detect the light produced by an arc by using a high sensitivity photodiode and to give out the Arc out signal For the description about input and output signals refer to section 3 To test precisely the functionality of the Arc Detector Module along with the Multimode Glass Fiber Cable AFT offers an optional Optical Test Board described in section 6 Each arc detector has only one optical input so one arc detector is capable to detect an arc occurring at one view port For bigger apparatus more number of arc detectors might be required in connection with a module which is capable to logically combine the signals of various arc detectors and generates a global arc output signal GLBARC This requirement is fulfilled by AFT s ARC4 System Interface Module available in two different configurations 1 The standard ARC4 System Interface Module that allows a logical OR combination of up to 16 Arc Detector Module signals described in section 4 2 The ARC4 System Interface Module with Selectable Logic that allows the user to choose between 4 different logical combinations of
23. tection 2 us to 7 us Auto reset time 85 us to 105 us Minimum light intensity for detection 2 lux P000032553 DOC 12 30 P000032553 Author Neha Gupta a AFT 9 1030000079 001 Approved Wei Date 08 07 2011 EB microwave ARC4 Detector System Page 13 30 4 ARC4 System Interface Module Standard The standard System Interface Module gives out a single Global Arc out signal GLBARC in TTL logic which is a logical OR combination of up to 16 Arc Detector Module signals All Arc Detector Module output signals are separately available as TTL signals In addition the interface card has two TTL inputs for remote control of the global reset and the global test function 4 1 Input and Output Signals F1 x2 DIP DB15 switches NN DB15 xe N ARC4 002 00 A02 Fig 4 ARC4 System Interface Module Card ARC4 002 00 X2 and X8 input output connectors Connector type DB15 female 4 1 1 Input Signals X2 and X8 Pin 11 TTL input global reset signal refer to section 4 3 Pin 12 TTL input global test signal refer to section 4 3 TTL input VOH 3 6V lt VOH lt 5V HIGH TTL input VOL OV lt VOL lt 1V LOW 4 1 2 Output Signals X2 Pin 1 arc out signal arc1 Pin 2 arc out signal arc2 Pin 3 arc out signal arc3 Pin 4 arc out signal arc3 Pin 5 arc out signal arc5 Pi
24. ts some higher light attenuation Cables are available in standard lengths of 2 5m 5m and 10m Customized lengths are available on request Product Specifications Fiber diameter 2 mm Coating diameter 3 0 15 mm Coating material PE black Numerical aperture NA A 587 nm 0 5 Attenuation lt 0 2 dB m at 650 nm Operating Temperature Range 55 C 70 C Minimum bending radius 10 cm Connector type FSMA connector 1 4 36 UNS Coupling nut with female thread Tensile loading 29 kg A Warning Do not pull twist or bend the cable with a radius less than 10 cm as it can permanently destroy the cable P000032553 DOC 26 30 P000032553 a AFT 9 1030000079 001 Approved c weil Date GB microwave ARC4 Detector System Page 27 30 9 ARC Viewports AFT s ARC Viewports are especially designed to provide an optical interface for a microwave waveguide to be connected to the Arc Detector Modules by using an fibre optic cable There are three standard viewports available for devices working in pressurized or non pressurized environment described as 1 Pressurized Viewport 2 Non Pressurized Viewport 3 Non Pressurized Viewport with Optical Test Port The connector type is FSMA with 1 4 36 UNS 2A male thread for all viewports configurations The Pressurized Viewport and the Non Pressurized Viewport provide optical interface to connect the ARC4 Arc Detector Module only Whereas the Non Pressurized Viewpo
25. um length of 75m Product Specifications Numerical aperture NA A 587 nm 0 64 Effective opening angle 2a A 587 nm gt 73 Color temperature normal light D 65 5 475 K Fiber diameter 70 um Bundle diameter 2 mm Coating diameter 3 6mm Coating material PE black Minimum bending radius 10 cm Connector type FSMA connector 1 4 36 UNS coupling nut with female thread Maximum length 75m AN Warning Do not pull twist or bend the cable with a radius less than 10 cm as it can permanently destroy the cable Warning The cable is not designed for the use in high x ray or gamma ray environment as high energy radiation can opaque the fibers Transmission 70 Cable end glued without connector 1600 1800 2000 2200 2400 8 8 Wave Length nm 200 400 600 800 1000 Fig 9 Spectral transmission of single fiber of 70 um diameter of length 1000mm for reference only P000032553 DOC 25 30 P000032553 FR a AFT 9 1030000079 001 Approved C Weil Date 08 07 2011 EB microwave ARC4 Detector System Page 26 30 8 2 Plastic Fibre Cable The Plastic fibre cable is a single plastic fibre cable of 2mm diameter terminated with FSMA standard connectors It is designed for the use in connection with AFT Arc detector systems The plastic cable is known for its superior radiation hardness compared to multimode glass fibre cables but exhibi
26. ut Signal SEEMIAN EE 17 5 2 2 Output Signal type Selection rrrrrnnnnnnrrrrrrvrrrrrrrnnnnnrrrrrrrrrnrnnrnnnnnnnr 17 5 3 Global Reset and Global Test Function s s sasasnsnnnnnnnnnnnnnnnnnnnnnnnnnnnnenen 18 54 Global Arc Signal Selectable Logic maven vehivskdumespanak 18 341 Logic A AN eege 18 TE Ne 18 343 LOJIO Ce een Ne meen ee eet er meer eee me ner me eer mer ne ee ernie meer 19 TOD EEE EEE EN 19 6 ARC4 Optical Test Board rrnnnnnnnnnnnnnnnnnnnnnnnnnnvnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnennnnnn 22 6 1 Input and Output Gonals rnn nerentnnrnrrtrerrnnnnnn rnn nnreennn 22 EG ES ERR EE ENE 22 6 1 2 OUPUFSIJNAS enna 23 60 2 Put Specifications dorrii i aa EEE 23 P000032553 DOC 2 30 P000032553 a AFT 9 1030000079 001 Approved Cwen GB microwave ARC4 Detector System page sd 7 Power Supply SpecificatiOn rrrnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnennnnnn 24 0 Fibre Optic E 25 8 1 Multimode Glass Fibre GbE Laosssrsedrtamute atdet 25 8 2 Plastic Fibre Cure 26 9 ARC VEND vesen 27 9 1 Pressurized Arc ViGWDOM EE 28 9 2 Non Pressurized Arc Viewport geegent EELER 29 9 3 Non Pressurized Arc Viewport with Optical Test Port 30 P000032553 DOC 3 30 P000032553 FR a AFT 9 1030000079 001 Approved C Weil Date 08 07 2011 EB microwave ARC4 Detector System Page 4 30 1 Introduction Microwave devices and systems working in high power area may quickly build
27. wer devices 0 47 0 13 i 3 40 4x mounting hole FSMA Connector i 1 4 36 UNS 2A thread I CO Viewpor 0 13 93 30 2x 0 87 22 0 65 16 60 0 55 14 0 71 18 Assembly Instructions Ra 1 6 Inthis Area 1 Surface V 4 2 Evenness 0 1 x x female thread 0 12 through N 3 min D Waveguide wall N 14 rr Sg So 09 o xe e 29S Fig 13 Non Pressurized Viewport with Optical Test port P000032553 DOC 30 30

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