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System 7000 User Manual

1. ccccccccccecscessseeseecseeessecssecnsecesecnseceeeseeeseseceseeeseeeseecsaesaeceseseaeees 34 4 3 6 Power Output Over Voltage InterlocCkK ooooonincninnonocononoconoconoconananonannonnnonnnoon ccoo nono nono noconanns 34 4 3 7 Converter Over Voltage Interlock oooooocnnoninnnnncinoccooncconoconoconoconoconncnnnonononnnrrnnronnncon ccoo nono 35 DANFYSIK A S DK 4040 JYLLINGE DENMARK MAGNET POWER SUPPLY SYSTEM 7000 2 4 3 8 Over Temperature Interlock sc cccscsesedeessesssagennverdesetssedasstsctsessacdssdeuniesledeadcesddbenedpenssatovts 35 4 3 9 PS Fan Fault interloka idad A ad a illa 35 43 10 Ground Fault Interlock sxcsccesuvsszciscos ercedus sok kaa katab koken sy vdi au chiapas been T t kdk kwe Dee in ske swa 35 Ag A E 36 4 3 12 Analog local remote current set point controlS ooononnnncinocononononoconoconoconoconocon nono nonnnoonnconnnos 36 43 13 Slow Rate limit aai nn E a abs 36 E A EN 36 43 15 Sunmmed Meas red Curry td ii m ed AA dret 36 4 316 S nmed Current Error sii s cccieseccevits date ou piba ee sake te s ke sid ia do kask pate de el ai kad EEEa 37 43 17 Analog Mesas id dia t 37 4 3 18 Current Regulation cc ccccccccssecesecesecsseceeeeseeeeeeeeeseeeseecseecsaecsaecaeceseceseceeeeseeeeeeeseseeseeeesees 38 4 3 19 Current Error Amplias 39 A320 Power Amplifiers A 39 ASQA O O NN 40 4 3 22 Auxiliary Voltage and Ground planes ccccccecsseesseesceeseceeces
2. Interlock and ON OFF STANDBY status This block processes the interlock and ON OFF STANDBY status signals Internal and external interlock and status signals are connected directly without galvanic isolation The latched interlock information can be seen from the LED s on the local control panel and from the remote serial line Digital interface plug Each interlock is individually connected to a SR latch Every time an edge transition is detected it will be latched in a SR latch The first one though will be latched on arrival of the delayed sum interlock This circuit consists of the integrated circuits U701 U705 U707 and U712 Over Current Interlock The task of the overload protection is to turn the power supply OFF if the output current rises above adjusted level that is adjustable by means of P807 This circuit is build upon U807 When the power supply delivers 100 output current the DCCT delivers exact 0 1A This 0 1A current is fed through a 10Q resistor in the Regulation Circuit sheet 2 and giving 1V and then amplified by 10 gives10V If this rises above adjusted threshold at the comparator U807 transistor Q804 will open and an overload interlock is activated Out of Regulation Status The output voltage from the ERROR amplifier located in the compensation loop circuit is proportional to the accuracy of the output current Since the gain in the ERROR amplifier is known the window discriminator U802 is able t
3. The saw tooth signal of the U404 oscillator is mixed with the current signal from the cycle by cycle current transformer signal is used by the U404 to switch off the FET s when the level of the output voltage feedback opto coupler is reached This saw tooth mixing also called slope compensation is about 20 The compensation amplifier of U404 is an integrator with zero at app 100 Hz and a pole at app 1 kHz Gain between 100 Hz and 1 kHz is app 25 dB The current mode controller has a built in low supply voltage detector which prevents DANFYSIK A S DK 4040 JYLLINGE DENMARK 4 4 5 4 4 6 4 4 7 MAGNET POWER SUPPLY SYSTEM 7000 De 45 inadequate trigger signals in case of power failure C430 R455 R445 and R496 perform a 50 mS soft start of the current mode controller The two outputs are programmed to have a deed time of app 1 uS FET Gate driver The FET s gates are driven from two dual gate driver chips This chip has the following feature High speed Capable to drive up 2A gate current Rated for 1200V Built in low supply voltage detector The IR 2213 is an ideal driver when MOS FET s is driven in an H bridge configuration The 2A gate drive current is sufficient to drive two or three TO247 housed power MOS FET s The bootjumper capacitor C306 and C307 is charged by D312 and D313 every time the LO output of the IR2213 is low Power output stage FET s Field Effect Transistors are chopped f
4. TYPE UNLOCK VER WA XXXXXX Read the internal status Read internal status in HEX format Standby Main Power ON with clamped output in ON OFF STB mode 2 Test DAC AD type in use Unlock the MPS Reads the software version Writes a value to an Digital to Analog converter for setting the output current preferred command DA 0 XXXXXX X is anumber from 0 to 9 and Commands in quotation marks are optional DANFYSIK A S DK 4040 JYLLINGE DENMARK MAGNET POWER SUPPLY SYSTEM 7000 e 21 Following are the commands for the standard software listed in alphabetic order Please see the ApBCPswla doc Software command for detail explanation of every command This issue is valid for software version BCP100 STANDARD COMMANDS summary ESC lt ADR Configures the communication ESC lt DASET Auto Configures the scaling address setting in RS422 gain and Offset for a DA mode converter channel ESC lt ADSET Auto Configures the scaling ESC lt LINE Configures the protocol for the gain and Offset for an AD serial lines converter channel ESC lt NFSMODE ESC lt BAUD Configures the Baud rate for the Configures the ON OFF STB serial lines mode operation ESC lt COLDBOOT Configures the power up state Wake up position ESC lt CPURESET Hardware reset CPU reset Following are the commands for the software driven RAMP PROFILE listed in alphabetic order Please see the SW appendix for parameter format and fur
5. 15V I 23 26 GNDS ON OFF STANDBY control SYSTEM 7000 has three ON OFF STANDBY modes See chapter 3 2 for more information about these modes Remote ON Standby and OFF pulse is pulse shaped by U201 A delay line ensures that sum interlock signal named SET on sheet 2 is only accepted if it stays high for a longer time than app 50 mSec The delay circuit consists of R251 C207 R252 and C208 The purpose is to eliminate false noise generated interlocks The output of the delay line will trigger Q209 Q212 that acts like a thyristor and thereby turning the transistor Q210 and Q214 off that controls the main contactor The sum interlock signal is also connected to Q212 for a latched interlock indication Turning the power supply ON is initiated by turning Q211 on with a pulse ON_PULSE will if allowable no interlock conduct thereby turning the main contactor on This will in turn activate the PWR_ON line that will direct Q210 on and thereby permit the power supply to stay on If though for some reason the main contactor doesn t goes on within the ON pulse time of Q211 will the ON sequence be terminated Turning the power supply OFF as a response to a command from the local control panel or the remote line will activate Q207 that forces Q210 and Q211 OFF For safety reasons the main interlock chain is hard wired DANFYSIK A S DK 4040 JYLLINGE DENMARK 4 3 3 4 3 4 4 3 5 4 3 6 MAGNET POWER SUPPLY SYSTEM 7000 De 34
6. RES ON a RESET N STB 1 INTL A J event OFF RES ee Res 70 INTL voy 3 X no INTL NS OFF S INTL al FAULT Else DAN AN event A A Pa NS L Else w OFF S AC Power ON Else a Va N ONS ON A J INTL NOK event OFF STB ON STB 2 Else Out Dis jw lt INTL OFF event yo STB ug Else x A N INTL al OFF S event FAULT Else Y W pe J Y i RES eared no INTL AC Power ON The LED inside the Reset push button indicated that the Power Supply is interlocked either due to an internal or external fault DANFYSIK A S DK 4040 JYLLINGE DENMARK MAGNET POWER SUPPLY SYSTEM 7000 Me 3 3 3 4 3 5 12 Local Remote control The LED Remote illuminates when the Power Supply is in the REMOTE control mode and is off in LOCAL control mode The control mode LOCAL REMOTE is changed by pushing the Remote push button if the MPS is not locked to remote line SYSTEM 7000 operating front panel Current setting In local The output current level can be displayed by pushing the SET button The output current display consists of six 7 segment LEDs The left segment shows the sign For negative set values a minus sign will be displayed and for positive set values no sign will be displayed The other Segments display the set value Each segment can be altered individually with the up down button To select which segment to alter use the forward back button The ch
7. 7000 Me 29 For enabling fast ADC mode strap ST11 must be short circuited close otherwise it is normal mode Mode Strap ST11 Fast ADC Close Normal Open default The maximum frequency for the ADC external trigger pulse is 30 Hz Trig mode Pin16 connector X7 ADC External trig Low Running High default 1 Short circuit pin 8 and pin 16 at the connector X7 2 Pin 16 is high at default Ps The fast ADC external trig input and the external trig for the ramp profile share the same physical port line Due to this the external trig for ramp profile option will automatically be disabled if the fast ADC external trig is enabled DC DC Converter A small 100 kHz 5W galvanic isolated push pull converter is provided It supplies circuits with two isolated 5V suppliers Galvanic isolation is used to avoid ground loops A voltage mode pulse width modulator U30 is controlling the push pull converter 5V for the ADC is generated from two linear regulators U23 and U24 3 3V for the p processor is generated from Low Noise Ultra Low Dropout Regulator U26 Serial Interface The SYSTEM 7000 supports serial communication RS232 RS422 and RS485 The default setting is RS422 The serial communication circuit consists of U39 U35 U36 U37A ISO5 ISO6 and ISO9 and the serial link is optically isolated The connector REMOTE CONTROL is the serial interface port For information abo
8. Connecting the master trig output X7 pin 3 amp 4 to the other supplies trig input will start the other supplies when the master is triggered A maximum skew of 2 5ms between the supplies may be expected an external 15V auxiliary supply is needed as the trig output is an open collector and the trig input is an opto coupler input External input and output triggers are located on the back of the SYSTEM 7000 see overview of the back of SYSTEM 7000 in chapter 4 1 1 Hint When adding values to the ramp profile the enter point start and exit point stop shall be the same in order for running the ramp sequence in loop Otherwise there will be an unwanted level between the exit point for the first ramp and the enter point for the next ramp as the ramp is miscalculated Besides the output current should set to zero before start running the ramp In order to run ramp profile correctly following steps must be performed e Clear the stack by typing RAMPSET C e Enter the data points type R 0 xxxxx and press enter Repeat this until the last data point has been entered Save the data points by typing R S Set the output current to zero by typing WA 0 or DA 0 0 Turn on the MPS by typing N Run the ramp in loop by typing RAMP R L x is a number from 0 to 9 Description of how to set up and run the ramp profile refer to the ApBCPsw1la doc Software command 3 7 3 SW limits The limits of the Equal time slot method ramp profile SW are T
9. O Signal from Master Slave switch placed in back of SYSTEM 7000 5V Master 0V Slave 23 75V 35V O Signal from dip switch setting 35V or 75V 5V 75V 0V 35V 24 Unit0 I Unit 0 2 is a 3 bit signal to analog switches The switches are controlling the voltage scaling 25 Unitl I The 3 bit scales the summed regulation error to 2 10V 26 Unit2 I The 3 bit scales the measured current to 100 10V 27 28 B 5V O 29 30 GNDD 31 34 15VUREG O Unregulated auxiliary supply voltage from AC DC Converter 35 40 GNDUREG O Connector P115 To From the Fan DANFYSIK A S DK 4040 JYLLINGE DENMARK 4 3 2 MAGNET POWER SUPPLY SYSTEM 7000 Moe 33 Pin no Name VO Description amp Specification 1 2 Fan contactor O ON OFF contactor for the internal FAN Connector P119 To From the Converter Pin no Name VO Description amp Specification 1 Output Voltage of Power Amplifier O SYSTEM 7000 output voltage feedback to AC DC Converter for Vce regulation 2 ON O Converter pulse width modulator ON OFF 5V ON 3 PWR ON I Cathode of opto coupler Opto coupler keeps SYSTEM 7000 ON 4 PWR ON I ON chain signal to parallel cable 5 AC Fault I Input of AC Fault camparator OK 15V 6 PWR Contact I Part of Machine Protection System signal ON 0V 7 ON Relay O Open collector Main contactor ON OFF 0V ON 8 Inrush Relay O Open collector Inruch relay OV End of inruch time 9 14 Spare 15 16 15VUREG I 17 18 GNDUREG 19 20 B 5V I 21 22
10. The Master unit converts the total current in the parallel cable into a voltage The number of units in parallel U914B U915B and U919 then scales this voltage Hereby 100 current out is equal to 10V The scaling is controlled by a 3 bit code coming from the Front Panel DANFYSIK A S DK 4040 JYLLINGE DENMARK 4 3 16 4 3 17 MAGNET POWER SUPPLY SYSTEM 7000 De 37 Summed Current Error The measured Error signal from U303A is converted into a proportional current U913A and U920B Each Slave unit feeds this current to the parallel interface cable The Master unit converts the total current in the parallel cable into a voltage The number of units in parallel U913B U916 and U918 then scales this voltage Hereby 2 current error is equal to 10V The scaling is controlled by a 3 bit code coming from the Front Panel Analog measurements This block processes the Analog measurements A high input impedance low drift differential amplifier U301B gives excellent stable measurement of the voltage across the burden resistor 1V DANFYSIK A S DK 4040 JYLLINGE DENMARK MAGNET POWER SUPPLY SYSTEM 7000 De 38 4 3 18 Current Regulation The ERROR amplifier U301A amplifies the ERROR signal from the summing point The output current is converted to 0 1 ampere in the DCCT and it is measured as a voltage across the high precision very low drift 10 Q burden resistor This voltage is converted to a current using the resistors R3
11. a nent Glee ett Ratoni ec dela an koi 20 4 THEORY OF OPERATION Sia AA A ia 22 4 1 INTRODUCTION Si ia do kaa didas 22 4 1 1 SYSTEM 7000 Interface SpecifiCatiOM o ooonococococonaconanonnnonncnononan nono nono nono nooo nc nn non rra rrna naar 23 4 2 DISPLAY CONTROLLER MODULE ui ia a 27 4 2 1 Micro PTOCESS O nao bateas 27 4 2 2 Displays euesan naton eae n be avans En A aaia aea ia de kou pa a pa pipe ik ESTA 27 4 2 3 A ea ae e ae e saa A Ee E EA O 27 4 2 4 Slow ADC CHCUN emisario td a yates al sl ka fk EE kat ata aaa pan fok avan den 28 4 2 5 Voltage reference 4 4 de eed e rel e e bounda iii 28 4 2 6 Fast ADC for reading displaying of output CUIT 2 cc eeceecseceteceteceeceeceeeeeeeeeeeeeseeestees 28 4 2 7 DCDC Convera iaa bee eee deka aa ds GANY 29 4 2 8 Serial Interface add 29 4 2 9 Front Panel Interface specification ccceccceesceesceseeeeseeeseeeseecseecaecaeceseceeeeeeseaeeeseeeseeeaees 30 4 3 POWER A MPETFIER MODULE trote aa tea de saka dan ev ee a i dese ta dende 31 4 3 1 Power Amplifier Interface specification cccecccecsccessesseeesceeseecssecesecnseceeeeeseeeseeeeeetaeesaees 31 4 3 2 ON OFF STANDBY control cceccceccsessseesceesceesceeeecaecnsecnsecsseeseeeseeeeeaeeeseeeseecsaeeaeseseeeaeens 33 4 3 3 Interlock and ON OFF STANDBY status cccecccccssecsseeseeesceceeeseecnsecesecesecsseeneeeeeeeeeeeenaees 34 4 3 4 Over Current Interlock 2 eee tained anevada taa 34 4 3 5 Out of Regulation Status
12. for full instructions The figure below shows an example of one ramp profile stack Ps not all 512 points need to be programmed empty entries will be ignored Output Software Ramp Profile Current Equal Time Slot Method ate o 20 e e e 10 e Incremental e o a e 5 E 2 4 5 e I 23e0 B26 57 Time 10 os From x TRIG EA E A AAA pe Ml AAA A Time Slots gt The time slot must be given as a multiple of 2 5ms Between 2 5ms to 1 second Any value in between will automatically be rounded according to formulae time slot frac time 0 00250 0 00250 DANFYSIK A S DK 4040 JYLLINGE DENMARK MAGNET POWER SUPPLY SYSTEM 7000 e 19 The SW will after the start command update the output current every 2 5ms By means of interpolation regardless of the programmed time slot value The ramp can be initiated to run as a single shot RAMP R auto iteratively auto loop by software command RAMP R L or HW triggered auto armed RAMP T W For a full documentation on controlling the Equal time slot method please refers to ApBCPswla doc Software commands If synchronization to an eternal event is required it is possible to arm the ramp sequence first with the synchronization command RAMP T A hardware signal on the trigger input X7 pin 1 amp 2 10 to 24V or a RAMP R command will start the sequence If more power supplies have to be synchronized one of the supplies has to be appointed as master
13. low when inside fan fail 16 Ground fault TO Ground fault automatically disabled in slaves 17 AC fault T O Interlock Open collector low when one of the voltage supply lines are low 18 GND D Digital GND 19 OFF command T O Open collector low OFF pulse 20 ON command T O Open collector low ON pulse 21 Unit parallel I Master X mA X slaves O Slave 1 mA sink per unit 22 Spare 23 GNDA I Loop GND 24 GNDA Analog GND 25 Not used Connector MPS STATUS P103 Pin no Name Description amp Specification 1 MPS This pin is conncted to pin 3 when the SYSTEM 7000 is ON 2 PIN2 amp 4 Pin 2 and 4 is connected 3 MPS This pin is conncted to pin 1 when the SYSTEM 7000 is ON 4 PIN2 amp 4 Pin 2 and 4 is connected DANFYSIK A S DK 4040 JYLLINGE DENMARK MAGNET POWER SUPPLY SYSTEM 7000 Connector EXTERNAL INTERLOCKS De 26 Pin no Name TO Description amp Specification 1 EXT 1 I 15V connected to RTN GND if no interlock 2 RTN GND 3 EXT 2 I 15V connected to RTN GND if no interlock 4 RTN GND 5 EXT 3 I 15V connected to RTN GND if no interlock 6 RTN GND 7 EXT 4 I 15V connected to RTN GND if no interlock 8 RTN GND Connector EXT TRIG Ramp profile synchronization ADC trig Applying a 15 to 25 V signal between pin 1 and 2 will start the SW ramp profile if armed or trig signal Pin no Name VO Description amp Specification 1 SYNC I I for ADC 0 2 SYNC I I Return wire for pin 1 3 SYNC O O Return line f
14. monitored VALUE BIT RESOLUTION Output current 17 sign Current Limit 17 sign Output Voltage 17 sign Voltage Limit 17 sign Voltage reference 17 sign Voltage reference The voltage reference circuit is constructed around U25 MAX6350 which delivers a 5V high precision voltage to the ADC U19 and the DAC Ul amp U10 Fast ADC for reading displaying of output current From PCB revision B The ADC U19 has a sample rate of 1 second If a faster sample rate is required the fast ADC circuit can be selected by inserting strap ST11 The fast ADC is capable of converting the output current up to 30 times a second with a resolution of 12 bit sign The sampling may be synchronized from an external trig signals SYNC I and SYNC I on connector X6 For enabling the external ADC trig pin 16 on connector X7 need to be set low high to low transition otherwise the fast ADC will run continuously at highest speed The fast ADC circuit is built around A4A and A4B together with two of the CPU internal ADC channels in an average over sampling technique The sampling frequency of these two channels is 10 kHz each but due to the running average calculation to achieve the 12 bit accuracy from the 10 bit internal ADC is the practice sampling rate reduced to 30Hz The sign for the fast ADC reading is built around a comparator LM311 DANFYSIK A S DK 4040 JYLLINGE DENMARK 4 2 7 4 2 8 MAGNET POWER SUPPLY SYSTEM
15. power is produced from 50 60 Hz transformers placed in the primary side An 18V linear regulator regulates this auxiliary voltage A 50 60 Hz transformer provides the secondary with 15V regulated auxiliary power The Vce voltage of the Power Amplifier module controls the voltage loop of the Push Pull Converter The collector emitter voltage of the Power transistors inside the amplifier is supplied with minimum 10V in order to avoid saturation of the amplifier Each phase line is provided with a phase detector build on the safety approved OPTO coupler CNY17 An interface cable from the Power Amplifier module contains the Auxiliary power phase detector start stop signals MPS SYSTEM 7000 output voltage and Power is ON detection DANFYSIK A S DK 4040 JYLLINGE DENMARK 4 4 1 4 4 2 MAGNET POWER SUPPLY SYSTEM 7000 De 43 AC DC Converter Interface specification The Regulation module has following connection P100 AC Main Power Supply voltage 1 Phase Faston Receptacles 6 3x0 8mm P101 AC Main Power Supply voltage 2 Phase Faston Receptacles 6 3x0 8mm P102 AC Main Power Supply voltage 3 Phase Faston Receptacles 6 3x0 8mm P103 AC Main Power Supply voltage Neutral Faston Receptacles 6 3x0 8mm P104 Earth connection Faston Receptacles 6 3x0 8mm P105 Amplifier supply voltage V Faston Receptacles 6 3x0 8mm P106 Amplifier supply voltage GND Faston Receptacles 6 3x0 8mm P107 Amplifier supply voltage V Fas
16. the Master Slave configuration see chapter 2 6 The Master Slave slide switch located on the back of the supply must be placed in Master position for all masters e Address all units with a unique address See SW manual doc ApBCPsw1c doc on how to set up the unit address MPS no Y KG Main Poner addresse X Y 1 Rack Fan Digital Output External interlocks Master Slave MPS no 3 AC Main Power AC Soni input addresse X 2 Rack Fan Digita Current External interlocks MPS no 2 KG Main Poner addresse X 1 External trig Parallel units BO Master Slave Output External interlocks Master Slave MPS no 1 addresse X Rack Fan Digita Current Analog Output O 8 External interlocks Master Slave X Start address Y The last unit of MPS on the multdrop line Example of multidrop configuration About the termination of RS422 or RS45 see chapter 3 6 1 Termination using RS422 or RS485 DANFYSIK A S DK 4040 JY
17. turn around time Minimum 2ms Time for the transmitters to tri state Answer Line turn around time Minimum 100us t Time after receiving the last bit of the transmission until an answer is initiated active transmitter DANFYSIK A S DK 4040 JYLLINGE DENMARK MAGNET POWER SUPPLY SYSTEM 7000 Me 3 6 1 3 6 2 15 Termination using RS 422 or RS 485 As standard there is no termination resistors connected inside the display controller module An external termination resistor of 100 Ohm must therefore be added at the end of the communication cable or the internal 100 ohm resistor must be enabled short circuiting strap ST9 The external resistor is preferable Hint This resistor can be placed inside the last DB 25 plug for the remote line When using the RS 485 or the RS 422 line in the multi drop configuration it is very important during an address transfer to leave the lines at the SPACE state when tri stated That is when the line is not driven by any transmitters at all The SPACE state can be utilized by adding 1K Ohm resistors to 5V non inverting and GND inverting on both the transmit and the receive lines The display controller module can provide this by short circuiting ST5 ST8 use a thin soldering iron The 1K resistors increase the noise immunity eliminating noise to be treated as commands thereby flawing the first character after being addressed Partial reset to factory settings From firmware releas
18. 00 e 1 Introduction and specifications 1 1 General introduction The SYSTEM 7000 is a DC constant current output Power Supplies designed for applications requiring very high stability and low noise combined with reliability and ease of operation The SYSTEM 7000 is aimed at correction magnets in ion beam applications It is the result of an intensive development effort at Danfysik based on twenty years of experience in delivering precision DC Power supplies to industrial and research laboratory users around the world Up to five SYSTEM 7000 units can be connected in a parallel Master slave configuration All analogue signals are summed in the master unit The master unit monitors and controls the parallel connected slave units e Current stability options of 100 ppm classes e Power outputs up to 1 5 kW per unit and 7 5kW with 5 units in parallel e Output current maximum up to 20 A Bipolar per unit and 100 A with 5 units in parallel e Local controlled or Remote controlled through a RS232 RS422 or RS485 serial interface line DANFYSIK A S DK 4040 JYLLINGE DENMARK MAGNET POWER SUPPLY SYSTEM 7000 1 2 Specifications STABILITY CLASS 100 ppm DC OUTPUT RATINGS Power rtange 1500W Voltage 0 0 eee eee eee 75V Currentrange 20 A PERFORMANCE All drift and regulation data are given for max Current output Warm up time Cold start 30 min Warm up time Wi
19. 04 This negative current is then compared with the positive current in a sum point and the difference is fed to the amplifier U301 an LT1112 The amplification factor of U301 and its frequency response can vary with the specification for each power supply The main task of the Regulation circuitry is to produce a regulated signal to the power output stage from the ERROR amplifier The Regulation circuit contains the following main functions Current loop Amplifiers compensation Current Error Amplifier Due to the output load DCCT compensation is it possible to connect many different loads to the output terminals of the power supply still keeping the regulation loop stable On special requirement and loads fine tune some loop components are necessary Please see the change notes in chapter 8 for possible change in component values The regulation principle can easiest be illustrated by looking at the two major criteria for the loop 1 Inner loop for Power Amplifier 2 Outer loop for ppm stabilisation Outer LOOP Inner LOOP DCCT 1 AN Out la DCCT Filter Driver Regulation principle for MPS SYSTEM 7000 Power Amplifier The figure shows the Principia of the two loop regulation DANFYSIK A S DK 4040 JYLLINGE DENMARK 4 3 19 4 3 20 MAGNET POWER SUPPLY SYSTEM 7000 De 39 Inner loop One of the advantages of the inner loop is cancellation of supply ripple and hum The inner loop is fast with
20. K A S DK 4040 JYLLINGE DENMARK MAGNET POWER SUPPLY SYSTEM 7000 De 48 6 Trouble shooting The syntax for trouble shooting hints WILL NOT GIVE MAIN POWER ON Check for interlocks Check connections to main contactor PHASE FAIL INTERLOCK Check all phases Check AC main power voltage MPS OVER TEMPERATURE INTERLOCK Check ambient temperature Shall be below 40 C Check for dust Make sure that heatsink is proper tightened MAGNET TEMPERATURE INTERLOCK Check connections to magnet RACK FAN FAULT INTERLOCK Check airflow switch in Rack gt Failure in thermal breaker DANFYSIK A S DK 4040 JYLLINGE DENMARK MAGNET POWER SUPPLY SYSTEM 7000 De 49 7 Drawings SCHEMATIC ASSEMBLY Dwg No Dwg No Amplifier PCB 84571 84570 Converter Schematic 84655 84654 PWM for Converter 84663 84662 Display Control Panel 85089 85088 Parallel Cable DF 65800001 8 Parts Lists See parts list structure 9 Parts Lists structure 81085249 Main 7000 P85249 208V ae een 96000010 P85250 Test Produktion 81085094 81084570 ES de Mech Fan Filter Plugs 81085088 Amplifier P84654 Resistor Heatsink Display Control panel P84570 Cable assy P85088 P85094 81084662 PWM Control 81585088 SMD Display 81584570 SMD Amplifier 81584662 SMD PWM Control DANFYSIK A S DK 4040 JYLLINGE DENMARK MAGNET POWER SUPPLY S
21. LLINGE DENMARK MAGNET POWER SUPPLY SYSTEM 7000 Me 10 3 Operating Instructions This chapter describes how to operate the power supply in the local as well as in the remote mode It also identifies the controls and the indicators on the front panel 3 1 Switching on After connecting the Power Supply to the mains line voltage in accordance with chapter 1 2 2 3 and 2 4 it can be switched ON Switch the main power ON Set control mode to LOCAL If the sum Interlock indication is set red LED illuminates in the RESET button press this button to clear it If it can t be cleared interlocks are present and must first be resolved 3 2 Main power ON OFF STB amp Reset The power supply can be set to three different modes for turning the power supply ON and OFF given as below 0 Direct ON amp OFF default mode 1 Standby mode 1 2 Standby mode 2 The desired working mode can be selected using the esc lt NFSMODE command See the software description for setting up the power supply and for further detail of this issue The working principle of the different modes is described through following state diagrams The circles are the state and the arrow lines are witch button command or event that initiates the state shift Mode 0 Direct ON amp OFF Else This mode is the default mode It is a characterized by the power supply is either in the ON or in the OFF state or if an interlock i
22. Limit I 0 10VDC from current limit potentiometer 3 Voltage Measured O 0 10VDC to BNC connector in Front Panel 4 Current Measured O 0 10VDC to BNC connector in Front Panel 5 Current Setpoint O 0 10VDC to BNC connector in Front Panel 6 Number of units in parallel O 1 7VDC to ADC in Front Panel 7 10 Spare 11 12 15V O 13 14 15V O 15 16 GNDA Connector P110 Digital signals To From the Front Panel Pin no Name IO Description amp Specification 1 Local Remote I Signal to analog switch controlling local and remote SET value 2 OFF Local I Active low signal to Start Stop control circuit 3 OFF status O SV from buffer 4 Standby Reset I Active low signal to Start Stop control circuit gt Standby status O 5V from buffer 6 ON Local I Active low signal to Start Stop control circuit 7 ON status O 5V from buffer 8 Over Current Interlock O 5V from buffer 9 Over Voltage Interlock O SV from buffer 10 Over Temperature Interlock O SV from buffer 11 PS Fan Fault Interlock O 5V from buffer 12 Out of Regulation Interlock O 5V from buffer 13 Ground Fault Interlock O 5V from buffer 14 AC Fault Interlock O SV from buffer 15 Summary Interlock O 5V from buffer 16 Magnet Over Temperature Interlock O 5V from buffer 17 Rack Airflow Interlock O SV from buffer 18 Spare 1 O 5V from buffer 19 Spare 2 O SV from buffer 20 In Current Limit O SV from buffer 21 Converter Over Voltage Interlock O 5V from buffer 22 Master Slave
23. SIK A S warrants that the products manufactured by us will be free from defects in material and workmanship that adversely would affect the normal functioning of the unit for a period of 18 months from the date of shipment or 12 months from the date of installation whichever occurs first The exemptions to this are a Parts not manufactured by DANFYSIK A S which are covered by the original equipment manufacturer s warranty b Repair work which is warranted for six 6 months from the date of shipment from the DANFYSIK works DANFYSIK A S will repair or replace either on site or at the factory at option any equipment which proves to be defective within its warranty period In the case of warranty DANFYSIK A S will pay or reimburse lowest freight rate two way of any item returned to DANFYSIK or our designated agent representative provided that prior written authorisation for such return has been given by DANFYSIK A S This warranty shall not apply to any equipment which has become defective or unworkable due to mishandling improper maintenance incorrect use radiation damage or any other circumstance not generally acceptable for equipment of a similar type On standard products DANFYSIK A S reserves the right to make changes in design without incurring any obligation to modify previously manufactured units The foregoing is the full extent of this warranty and no other warranty is expressed or implied In no event shall Danfysi
24. SYSTEM 7000 CUSTOMER OUTPUT DATA ORDER NO PART NO SERIAL NO AC INPUT 3x208VAC excl Neutral 3x208VAC incl Neutral 3x400VAC incl Neutral 3x415VAC incl Neutral OUTPUT DATA 20A 35V or 75V INTERFACE Rs232 RS422 RS485 7000 OURO No TADS UTPUT CURRENT PS i ne DANFYSIK e FAAT e e FAT e i cl re f AAA 1 l iti 0200 PS DC and hawar triggering settings 1 l l LA rs a added MANUAL MAGNET POWER SUPPLY SYSTEM 7000 DANFYSIK A S e DK 4040 Jyllinge e Denmark e Tel 45 46 790000 e Fax 45 46 79 00 01 IMPORTANT This documentation contains information which is the property of DANFYSIK A S Denmark It is submitted to you in confidence that it will not be disclosed or transmitted to others without DANFYSIK s authorisation MAGNET POWER SUPPLY SYSTEM 7000 l Table of contents PAGE 1 INTRODUCTION AND SPECIFICATIONS 0 A ka ek via TAS 3 1 1 GENERAT INTRODUCTI N Aer eieaa asii 3 1 2 SPECIFICATIONS is 4 1 3 WARRANTY AND WARRANTY REPAIR ssssssessessessessseseseeseeesesseseeeeeseseeeseseeeseseseseceseseseseeeeeeeeeeeeens 5 2 UNPACKING AND INSTALLATION uso a lolli Nearest ran eran ka ay 6 2 1 RECEIVING THE GOODS II iii aca cds a at Cae dad a vin Add 6 2 2 INSTRUCTIONS FOR UNPACKING os s ss2 3yssesasesasecehatesactdadevt orale iea a E E A E ARNE 6 2 3 INSTALLATION REQUIREMENTS vee eta sues k kat lig tid dl esa seas visage es coud ya s
25. YSTEM 7000 81085205 Main 7000 P85205 400V 81085087 Main SUB 7000 P85087 96000010 Test Produktion 81085094 81084570 En e n man Mech Fan Filter Plugs 81085088 Amplifier P85022 Resistor Heatsink Display Control panel P84570 Cable assy P85088 P85094 81584570 SMD Amplifier 81084662 PWM Control 81585088 SMD Display 81584662 SMD PWM Control 81085251 Main 7000 P85251 415V ak Su en 96000010 P85252 Test Produktion 81085094 Mech Fan Filter Plugs 81085088 Resistor Heatsink Display Control panel Cable assy P85088 P85094 81085253 chak 400VAC Converter Amplifier P84570 RES 81584570 SMD Amplifier 81585088 SMD Display 81084662 PWM Control 81584662 SMD PWM Control EOD DANFYSIK A S DK 4040 JYLLINGE DENMARK 50
26. current reach adjusted level 15 PS fan fault T O Interlock Open collector low when inside fan fail 16 Ground fault T O Ground fault automatically disabled in slaves 17 AC fault T O Interlock Open collector low when one of the voltage supply lines are low 18 GND D Digital GND 19 OFF command T O Open collector low OFF pulse 20 ON command TO Open collector low ON pulse 21 Unit parallel I Master X mA X slaves O Slave 1 mA sink per unit 22 Spare 23 GNDA I Loop GND 24 GNDA Analog GND 25 Not used DANFYSIK A S DK 4040 JYLLINGE DENMARK MAGNET POWER SUPPLY SYSTEM 7000 De 25 Connector PARALLEL UNITS TO SLAVES Parallel hardware control P111 Pin no Name VO Description amp Specification 1 Power is ON I 2 15VD O 3 Out of regulation T O Interlock Open collector low when output current exceeds the limit of 2 5 of the set value 4 Summary fault T O Interlock Open collector low when SCR in Start Stop control is activated 5 Over temp T O Interlock Open collector low when the heat sink of the amplifier is above 80 C 6 Spare 7 Standby command T O Open collector low Standby pulse 8 Spare 9 Summed current error I Master Converts current into error voltage signal scaled by no of units O Slave 1 mA per 2 error per unit 10 11 Spare 12 Setpoint O Master I Slave 13 Spare 14 Over current T O Interlock Open collector low when output current reach adjusted level 15 PS fan fault T O Interlock Open collector
27. d etc Current Setpoint readback Current Setpoint Measured Shield O Measured RTN O Setpoint Shield I Setpoint RTN I DK 4040 JYLLINGE DENMARK MAGNET POWER SUPPLY SYSTEM 7000 Connector DIGITAL Remote RS232 RS422 RS485 DB2S serial line Interface De 24 Pin no Name T O Description amp Specification 2 Tx O RS232 Transmitter line 3 Rx I RS232 Receiver line 7 RETURN T O Return line for RS232 9 Tx High O RS422 485 Transmitter positive line 10 Tx Low O RS422 485 Transmitter negative line 11 Rx High I RS422 485 Receiver positive line 12 Rx Low I RS422 485 Receiver negative line Connector PARALLEL UNITS TO MASTER Parallel hardware control P112 Pin no Name T O Description amp Specification 1 Power is ON O Power ON chain All parallel units will go OFF if one unit drops out 2 Spare 3 Out of regulation T O Interlock Open collector low when output current exceeds the limit of 2 5 of the set value 4 Summary fault T O Interlock Open collector low when SCR in Start Stop control is activated gt Over temp T O Interlock Open collector low when the heat sink of the amplifier is above 80 C 6 Spare 7 Standby command TO Open collector low Standby pulse 8 Spare 9 Summed current error I Master Converts current into error voltage signal scaled by no of units O Slave 1 mA per 2 error per unit 10 11 Spare 12 Setpoint O Master I Slave 13 Spare 14 Over current T O Interlock Open collector low when output
28. e version BCP V1 07 The partial reset to factory settings resets the baudrate and address setting to factory default This feature can be used when the baudrate or and address is unknown and the operator no longer is able to communicate with the MPS To activate the partial reset to factory settings do following on the front panel picture of front panel see page 12 1 Hold the A up and W down buttons for min 5 sec 2 Release the buttons and the baudrate and address are reset to factory settings After partial reset the setting for baudrate is 8 BIT DATA NO PARITY AND 2 STOPBIT and baud rate 9600 and the address is 0 DANFYSIK A S DK 4040 JYLLINGE DENMARK MAGNET POWER SUPPLY SYSTEM 7000 e 3 7 16 Programming The power supply communication protocol is build upon plain ASCII characters where each command or reply is delimited by a Carriage Return lt CR gt character However a reply has a Line Feed lt LF gt character added before the lt CR gt for a friendlier display when using a terminal lt LF gt characters on commands will be ignored Hint Actually the protocol allows full control of the power supply from a dumb terminal In case of a service debug situation a terminal can be used to tap the communication transfer by a simple parallel connection Hint When debugging the ERRT command enables error messages to be given as a read able text More commands may be transmitted i
29. eceseceseceeeseeeseaeeeseeeseeeeeesaes 40 4 3 23 Current Transducer nec ccceccsccsseesseeseeeseceseceseceseceeeeseeeseeeaeecsaecssecsaeceseceseeeseeseeseseeeeeesneensees 40 4 4 AG DE CONVERTER MODULE tie ba ww irene Aa AAE N AS 42 4 4 1 AC DC Converter Interface specification cccccccsecsseceseceteceeceeceecseeeseeeeeseenseeeseeeaeenaes 43 4 4 2 AUX IA Y POW OTs 2332 08 A oa 43 4 4 3 Current mode Push Pull regulator c cccceccecssecsceeseeseenseceseceseeeeeseeeseeeeeeeeeseeeseeeeeesaeeseenes 44 4 4 4 Pulse Width Modulator module ccccccsccssecessceseceseceseceeeceeeeseeeeeseceseeeseecseeesaecaeensecnseeeaeens 44 4 4 5 FET Grate Vinci An a A A CEs des Beckie ete ER 45 4 4 6 Power output STAGE wl ket ta rend taaan ob ota rana ideada stand se 45 4 4 7 Power Transtornos 45 4 4 8 Output tl A O A le os ouh adn aia 46 5 MATNTENA NECE DEAR AI A ka a ks lw vitae kan 47 5 1 INTRODUCTION A a a ia desea 47 5 2 PREVENTIVE MAINTENANGE sad cciesdyseegedelacsdeesdondseceneecvanesscececessussuussebicedsanes PASE Aaa Ed 47 5 3 ADJUSTMENT AND CALIBRATION cccccesssssscecececeessnsesececececsessnseseceecesesensneaeeesecsesensnseaeeeceeseseeas 47 6 TROUBLESHOOTING cinei ek savant A E acest va A ka kek 48 7 DRAWING SA A A A li a 49 8 PARTS TAS TS A asta cata acted ened MU Hane A A sna be 49 9 PARESTISES STRUCTURE 00 AS AA wie A AA A dui vals esos dds 49 DANFYSIK A S DK 4040 JYLLINGE DENMARK MAGNET POWER SUPPLY SYSTEM 70
30. ed P305 SW2 Closed Open Hint 13 The time constant of the magnet transfer function of the load can be measured using the SYSTEM 7000 in the voltage mode together with an attached gain phase analyser Machine Protection System signal The Machine Protection System signal Abbreviated to M P S signal is available through an Amphenol connector located on the back of the cabinet This signal is produced by AND ing the three signals ON status Sum Interlock and the Main contactor is on The M P S signal is high when the SYSTEM 7000 is ON Sum interlock and the ON status can be excluded from the M P S signal Sum Interlock ON Status Enable Disable Switch Signal name Enabled factory Disabled P702 SW1 Sum interlock Closed Open P702 SW2 ON status Closed Open Interlock enable disable rerouting Two interlocks Ground Fault Interlock Over Voltage and one status signal Out of regulation can be disabled if not desired Interlock Status Enable Disable Enable Disable P801 SWI Interlock Ground Fault Open factory Closed P801 SW2 Status Out of regulation Open factory Closed P803 SW2 Interlock Over voltage Open factory Closed DANFYSIK A S DK 4040 JYLLINGE DENMARK MAGNET POWER SUPPLY SYSTEM 7000 e 14 3 6 Data communication The SYSTEM 7000 uses the standard serial interface RS232 and RS422 which is compatible with many comp
31. el shifted in Q513 The current from Q513 is amplified in current mirror Q507 Q509 Q508 and Q510 Quiescent current of the power stage is adjusted by potentiometer P503 to app 100 mA Quiescent current is temperature linearised by NTC R544 Each power transistor Q501 to Q506 is equipped with an emitter resistor to guarantee current sharing Q516 protect the power stage against high peak current DANFYSIK A S DK 4040 JYLLINGE DENMARK 4 3 21 4 3 22 4 3 23 MAGNET POWER SUPPLY SYSTEM 7000 Me 40 Load Dump The Load Dump circuit will dissipate the power stored in magnet connected to the MPS SYSTEM 7000 if the main AC power suddenly drops The Load Dump circuit is designed only with discrete components because auxiliary power will disappear when the AC input supply drops The Load Dump circuit is capable of dissipating up to 500J in two large power resistors mounted on the chassis The current stored in the magnet will be returned to the Power Amplifier positive or negative supply line by the two reverse diodes in the Power Amplifier D502 and D518 When the positive supply line reaches app 125V the discrete thyrister Q511 and Q512 will turn Q515 ON When The FET is ON the Power resistor is connected across the supply line to dissipate the magnet energy The thyrister will turn the FET OFF when supply lines gets below 100V Circuit equal to positive line but transistor of complimentary types protects the negative
32. ensure best protection it is recommended to adjust the slew rate circuit to the maximum needed ramp speed and not ramp faster than the loop can regulate DANFYSIK A S DK 4040 JYLLINGE DENMARK MAGNET POWER SUPPLY SYSTEM 7000 e 23 4 1 1 SYSTEM 7000 Interface specification SYSTEM 7000 has following external connections Analogue Interface D sub 9 pole female Digital Interface D sub 25 pole female Parallel unit Master top position connector D sub 25 pole female Parallel unit Slave bottom position connector D sub 25 pole female AC main input 3 phase Neutral and Earth AC Control input Earth Screw MPS Status Amphenol 4 pole series CO91B female Current output External trig for use with Ramp or fast ADC 4 pole External interlocks Weidmuller 151 096 8 pole Rack Fan Weidmuller 151 096 2 pole Factory program 6 pole Connector ANALOG Analogue status and analogue set value interface Pin no Name VO Description amp Specification 1 2 Nn N OND DANFYSIK A S Measured Current Error O Output is 5V per 1 in difference between output current and SET current Measured Voltage O Output is 10V if output voltage is 35V or 75V This depends on dip switch setting Measured Current O Output is 10V for 100 output current 20A one unit and 40A when two units are in parallel and etc O Output is equal to SET value I Input setponit 10V equal to 20A for one unit and 40A when two units are in parallel an
33. eve kw bak ke e gon 6 2 4 INSTALLATION tet gete tak kad seta taa a kai a st A ka ke kk a kk a ap e eee ta kk pa e ka pis n fi 2 5 MASTER CONFIGURATION NO PARALLEL UNITS CONNECTED A EE A E A N E 7 2 6 MASTER SLAVE CONFIGURATION TWO OR MORE UNIT IN PARALLEL 0coooccconononononoconocononannnnnnanoos 8 2 7 RS422 OR RS485 MULTIDROP CONFIGURATION cccccccccsesessssececececsessnssaeeeeceeesesenseseesecesesensntsaeess 9 3 OPERATING INSTRUCTIONS cto si a tdt dv AAA AA A ts 10 3 1 SWIECHAINGON it o e a a el 10 3 2 MAIN POWER ON OFF STB amp RESET Tannen E 10 3 3 LOCAL REMOTE CONTROLE ts 12 3 4 CURRENT SET FING 444502 0n dwan PEA REES narialeteriettehaniacdesa roads 12 3 5 SETTING UPF THE MP Sii a At aa ki konpay kapa ed ia ee pire fav 12 3 6 DATA COMMUNICATION A a cans de Deni De ged eles 14 3 6 1 Termination using RS 422 or RS 485 0 ccc tett ee tee taet aa aateaaetaaesaaesaesaaeonaoosnosasoossnosanosanooanoon 15 3 6 2 Partial reset to factory SettiNgs ccccccecsseesseesseesseessecsecseseeeeeeeeeaeeeseeeseeessecsaecaeenseceseseaeees 15 3 7 PROGRAMMING comicidad caia odio ads 16 3 7 1 Software Profile Programming c cccsccesscesscesecsesceeeeeeseeeeeeeseeeseecsaecseecsaeceseceaeeneeeseeeeneeeags 18 3 7 2 Equal time slot ramp profile method oooooonocinccnonoconnconaconanonnnonnonononan nono nono noon ccoo nooo nono nccnnnnns 18 3 7 3 SIS ria Aida 19 3 8 SW COMMANDS tt ii canta ask ene bet te sct denye tip Ak da asta ott
34. he CPU if it for some reason stops to refreshing the watchdog As memory it uses its internal FLASH EEPROM for the PGM storage and U20 as the data storage FRAM type FM25CL64 S with 64Kbit capacity as well as its internal RAM Display The display consists of 12 single LEDs for status and 2x6 common anode 7 segments LEDs for displaying set output currents and voltage respectively The display refreshment is done through multiplexing controlled by the CPU For driving the segments buffer U9 and U18 with transistor Q1 and Q2 are used Connecting the power supply as slave in a master slave configuration in parallel with another supply the 7 segment display of the slaves will be turned off The master will automatically display the total current of all paralleled units DAC circuit The DAC circuit converts the serial digital set value to a voltage reference The circuit is built around U1 for the I reference set value and U10 for the V reference set value The DAC circuit delivers a bipolar output voltage proportional with the digital input value DANFYSIK A S DK 4040 JYLLINGE DENMARK 4 2 4 4 2 5 4 2 6 MAGNET POWER SUPPLY SYSTEM 7000 De 28 Slow ADC circuit Different voltages are monitored by means of the Analog to Digital converter U19 The measured values and their resolution are shown in the table below The 2 5V reference voltage for the ADC converter comes from U25 The following analogue signals are
35. he set value must be given in a floating point representation normalized to 1 00000 The time slot may be between 0 0250 to 1 second given in a floating point representation normalized to 1 0000 Maximum numbers of stacks 1 Maximum number of time slots in a stack 512 DANFYSIK A S DK 4040 JYLLINGE DENMARK MAGNET POWER SUPPLY SYSTEM 7000 3 8 SW Commands De 20 Following are the commands for the standard software listed in alphabetic order Please see the ApBCPswla doc Software command for detail explanation on every command This issue is valid for software version BCP100 STANDARD COMMANDS summary ADX ADR ADR XXX ADCTRIG CMD CMDSTATE Read value from an ADC channel Read the address of the MPS Write an address to a MPS Read the AD channel trig setup Read current control mode Read current control state DA 0 XXXXXX Writes a value to an Digital to ERRC ERRT LALL LOC LOCK NERR PO PO PRINT REM RLOCK RS Analog converter for setting the output current Alternative to the WA command Coded error message Text string error message Main Power OFF Listen ALL Change to Local Control Lock the MPS in Local Control Main Power ON No error message Polarity status Change to Normal polarity Reads internal user information about the MPS Read the set value Change to remote control Remote line only Reset interlocks S1 S1H STB TD
36. head balances the primary ampere turns At the same time the voltage across the secondary winding is kept to a minimum and by this it approaches an ideal current transformer The primary ampere turns of the transducer head are the same as the output current The Zero Flux Detector The Zero Flux Detector is a circuit patented by DANFYSIK In principle it consists of U4 Those IC s monitor if the flux inside the DCCT head is zero and if not and error signal is produced to the power output amplifier The error flux signal is monitored in two ways a Frequencies from Dc to 5 kHz and b frequencies above 5 kHz a ensures a excellent stabilisation in the DC area and b ensures a high frequency bandwidth The bandwidth is typically like 20A DCCT 100 KHz The Interlock Circuit If the compensating winding is unable to cancel the ampere turns of the primary current typically by overload or faulty circuit the zero detector cores will saturate and the magnetising currents will rise to a high value only limited by the R15 R19 R26 and R27 resistors The average of the two driver outputs will go low This is then detected by U6 which drives the LED Normal ON and the opto coupler ISO1 Normal OFF The transistor of the opto coupler is available for an external interlock system At the same time U6B switches the connection to the output amplifier from the zero detector to the bi stable circuit IC 7B The output amplifier now starts swee
37. ires reduce the power loss to a minimum due to the high frequency skin depth effect The rectifier diodes are also the free wheeling diodes when FET s are OFF DANFYSIK A S DK 4040 JYLLINGE DENMARK del 5 2 5 3 MAGNET POWER SUPPLY SYSTEM 7000 Me 47 Maintenance Introduction Servicing DANFYSIK Magnet Power Supply should be attempted only by trained and qualified personal Dangerous voltages capable of causing loss of life are present inside this power supply Use extreme caution when accessing handling testing and adjusting Preventive maintenance In normal operating environment perform the following tasks at one year intervals Clean all fan protection grill Vacuum the openings in the cabinet and all heat sinks mounted on printed circuit boards to ensure a normal flow of cooling air Check that screw connections from the output terminals are tightened In dusty or dirty environments the above mentioned points should be performed more often Inspect visually the power supply for components that have been overheated or other suspicious sign In high radiation environment performances of following tasks are recommended at one year intervals Replace all ICs mounted in sockets on the printed circuit boards Printed circuit boards with ICs mounted without sockets should be replaced Adjustment and calibration This power supply does not need any regular adjustment or calibration DANFYSI
38. k be liable for special damages arising from the delivery late delivery or use of the equipment If any fault develops the following steps should be taken Notify DANFYSIK A S giving full details of the problems and include Model Type and Serial number On receipt of these information DANFYSIK A S will give you either service information or instructions for shipping All shipments of DANFYSIK equipment should be made according to our instructions and shipped in the original or a similar container For smaller parts a carton will be sufficient if the parts are wrapped in plastic or paper and surrounded with at least 10 centimetres of shock absorbing material DANFYSIK A S DK 4040 JYLLINGE DENMARK MAGNET POWER SUPPLY SYSTEM 7000 De 2 ZA 2 2 2 3 Unpacking and installation Receiving the goods The Shipping container and the Power Supply should be thoroughly inspected for signs of obvious physical damage immediately upon receipt All materials in the container should be checked against the enclosed packing list DANFYSIK A S will not be responsible for shortages against the packing list unless notified immediately Instructions for unpacking The Power Supply is shipped in reinforced cardboard If the equipment is damaged in any way a claim should be filed with the shipping agent and a full report of the damage should be forwarded to DANFYSIK A S or our local agent representative immediately Upon receip
39. l either supplied from the Analogue interface or the built in precision DAC The resultant error signal is feed into a high gain amplifier system The output from this amplifier controls the output power amplifier so that the output current is maintained within the specified accuracy Due to safety reasons it is possible to stop interlock the power supply These interlocks can either be generated internally phase_ temperature_ over voltage_ over current_ failures and others or externally two spare_ Magnet over temperature_ or rack fan_failure These interlocks are latched on the power amplifier module It is possible to control the power supply either from the local control panel located on the front of the supply through the remote serial line or through the PARALLEL UNITS TO MASTER and PARALLEL UNITS TO SLAVE interface plugs allowing a parallel control and analogue current settings In all modes it is possible to switch the supply ON OFF reset interlocks read status information as interlocks internal voltages and output current voltage The slaves must also be connected to the serial line in order to read these individual interlocks Efforts have been taken to design the power supply to be fully protected if an error occurs However if magnets above 500mH is connected fast ramping beyond regulation e g polarity change from full positive to full negative set current might bring the output transistors beyond SOA The
40. line Auxiliary Voltage and Ground planes The Amplifier Board is supplied by a 15V regulated supply The Amplifier Board carries its own 5V supply for the digital interface interlock and LED s This 5V is regulated from the 15V by U603 The Ground in the Amplifier Board is divided in five ground planes GNDD Are ground for ON OFF STANDBY circuit Interlock and digital interface GNDA Are ground for Analog measurements GNDP Are ground for the Output Power Stage LGND Are ground for the Regulation Loop GNDDCCT Are ground for the DCCT circuit GNDD GNDA and GNDP are connected in one star point LGND and GNDDCCT are connected to GNDA in a star point Current Transducer The Current Transducer delivers a current proportional to the output MPS current measured by the DCCT head This module is calibrated with the DCCT head to give exact 0 1A with a 100 output current This circuit contains the following four main functions A power output amplifier A zero flux detector An interlock circuit A low voltage supply DANFYSIK A S DK 4040 JYLLINGE DENMARK MAGNET POWER SUPPLY SYSTEM 7000 De 41 The Power Output Amplifier This circuit consists of U3 and U7 The Power Output Amplifier receives a signal from the feedback winding on the transducer head and a signal from the zero flux detectors With these two signals the output of U7 is driven in such a way that the secondary ampere turns of the transducer
41. n a chain but each single command must be trailed individually with the delimiter character lt CR gt The power supply is able to execute up to 200 commands a second depending of the complexity of each command Ps Issuing short commands faster than the time to transmit the answer e g S1 will overload the internal transmit buffer regardless of the selected baud rate All commands can be divided into three sections a Directive commands Eg the N command that turns the power supply ON b Status commands Eg the S1 that returns the power supply status Status commands delivers always a reply whereas directive and setup commands only responds with an error message if the command couldn t be understood or if the given parameters are incorrect It is possible to set the power supply to always generate an answer This feature is very useful when using RS485 protocol Hint When using the OK Answer mode a retransmission of the last given command can be performed if no answer or an error message is received The System 7000 respond time is around 5ms after receiving the last bit of the termination character Answer scheme if set to Always Answer mode c Directive commands Answer No answer ERROR message OK if set to OK answer mode d Status commands Answer Data ERROR message e Set up commands Answer No answer ERROR message OK if set to OK answer mode Ps An error message is generated immediately
42. nals If the External Interlock 3 is unused then short circuit the terminals If the External Interlock 4 is unused then short circuit the terminals 2 5 Master configuration No parallel units connected The Master Slave slide switch located in the back of the cabinet must be set to Master Connect Analogue or Digital interface remote control cable if applicable Connect the termination plug in the Parallel unit to slave DB25 male connector located on the back of the cabinet Pin 1 amp 2 shorted DANFYSIK A S DK 4040 JYLLINGE DENMARK MAGNET POWER SUPPLY SYSTEM 7000 2 6 Master Slave configuration two or more unit in parallel De 8 The Master Slave slide switch located on the back of the supply must be placed in Master position for the master unit and in slave position for all the other units Only one SY STEM 7000 must be configured as master Connect the Parallel unit interface cable between the Parallel unit to slave DB25 male plug of the first unit normal master to the Parallel unit to master DB25 female plug of the next unit and so on in a daisy chain The first unit must have the termination plug connected to the Parallel unit to master and the last unit must have the termination plug connected to the Parallel unit to slave Not used external interlocks must be short circuited Master Slave Slave AC Main Power Ac control input O MPS s
43. nd the pulse width modulation circuitry in the converter Be aware of the galvanic isolation between most of the voltages please do not connect these voltages during measurements and servicing The voltage levels indicated in the connector specification are not the exact voltages but DANFYSIK A S DK 4040 JYLLINGE DENMARK 4 4 3 4 4 4 MAGNET POWER SUPPLY SYSTEM 7000 Ne 44 indicate the voltage levels they are intended to be after regulation Please see also the schematic for the right levels Current mode Push Pull regulator The Push Pull circuit can be divided in following blocks Pulse Width Modulator module Gate driver for the FET s Power output stage with FET s Power transformer Output Filter The figure shows the Current mode Push Pull regulator Pulse Width Modulator module Schematic 84663 Assy 84662 The current mode control system generates the pulse width modulated signal according to the output voltage of the converter The circuit is build upon U404 Current mode controller chip From the controller chip internal oscillator signal the current mode controller chip U404 generates two alternating pulse width controlled signals A and B The saw tooth current signal from the current transformer controls the maximum output current
44. o ON status LED 8 Over Current Interlock I 5V to Over Current Interlock LED 9 Over Voltage Interlock I 5V to Over Voltage Interlock LED 10 Over Temperature Interlock I 5V toOver Temperature Interlock LED 11 PS Fan Fault Interlock I 5V to PS Fan Fault Interlock LED 12 Out of Regulation Interlock I 5V to Out of Regulation Interlock LED 13 Ground Fault Interlock I SV to Ground Fault Interlock LED 14 AC Fault Interlock I 5V to AC Fault Interlock LED 15 Summary Interlock I 5V to Summary Interlock LED 16 Magnet Over Temperature Interlock I 5V to External Magnet Over Temperature Interlock LED 17 Rack Airflow Interlock I 5V to External Rack Airflow Interlock LED 18 Spare 1 I SV to External Spare 1 Interlock LED 19 Spare 2 I SV to External Spare 2 Interlock LED 20 In Current Limit I SV to In Current Limit LED 21 Converter Over Voltage Interlock I 5V to Converter Over Voltage Interlock LED 22 Master Slave I Display in Front panel is off in Slave mode 5V Master OV Slave 23 75V 35V I H Processor is scaling Voltage Display to 35V or 75V 5V 75V 0V 35V 24 Unit0 O Unit 0 2 is 3 bit showing no of units in parallel 25 Unitl O The 3 bit scales the summed regulation error to 2 10V 26 Unit2 O The 3 bit scales the measured current to 100 10V 27 28 B 5V I 29 30 GNDD 31 34 15VUREG I Supply For DC DC Converter 35 40 GNDUREG I DANFYSIK A S DK 4040 JYLLINGE DENMARK 4 3 4 3 1 MAGNET POWER SUPPLY SYSTEM 7000 De 31 Power Am
45. o test if the output current lies within the desired level The window span R807 R814 R822 and R824 is calculated to 2 5 Power Output Over Voltage Interlock If the output voltage of the Power Amplifier exceeds the adjusted threshold level interlock is activated Threshold level is adjusted at P802 DANFYSIK A S DK 4040 JYLLINGE DENMARK 4 3 7 4 3 8 4 3 9 4 3 10 MAGNET POWER SUPPLY SYSTEM 7000 De 35 Converter Over Voltage Interlock If Converter voltage rises above app 100V interlock is activated The window span R828 R829 R833 R834 R837 and R839 is calculated to 100V Due to limit in Interface Interlock lines the Converter OV Interlock is not represented separate Summery is activated but optional Converter OV is OR ed to the Output OV Interlock Over Temperature Interlock K801 is an 85 degrees C thermal sensor used on the Power Amplifier heat sink PS Fan Fault Interlock If the PS Fan is short or open circuit interlock is activated The fuse F801 will blow if the Fan makes a short circuit When the current is zero interlock is activated PS Fan interlock is bypassed when the Fan is powered up to avoid interlock Ground Fault Interlock Output ground is connected to chassis through a 1A fuse Only the Master is connected to chassis This is controlled by the relay K802 The detector circuit is built upon U808 If the Ground Fuse blows the detector circuit will detect a voltage bet
46. or SYNC 0 4 SYNC O O Connector FACTORY PROGRAM Open collector output up to 24V 100mA Active in minimum 2 5ms when a ramp profile has been triggered Software upgrade plug X2 Only to use by authorized Danfysik service personnel Pin no Name YO Description amp Specification 1 ISOGND Ground 2 RESET I Reset 3 Rx I Receiver line 4 Tx O Transmitting line 5 6 ISO5V 5V Connector RACK FAN Auxiliary fan Pin no Name VO Description amp Specification 1 Fan 1 O NO contact for auxiliary fan close in standby and on mode Contact may be loaded with maximum 220VAC 0 5A 2 Fan 2 O See above Connector AC MAIN INPUT Pin no Name V O Description amp Specification gt Earth I Green Yellow 1 LI I Line 1 L2 I Line 2 3 L3 I Line 3 Earth screw Pin no Name VO Description amp Specification 1 6mm DANFYSIK A S DK 4040 JYLLINGE DENMARK Safety Ground 4 2 4 2 1 4 2 2 4 2 3 MAGNET POWER SUPPLY SYSTEM 7000 Me 27 Display controller module Schematic 85089 1 amp 2 Assy 85088 The display controller module contains the display local buttons DAC for the set value ADC for the read back serial interface and the controlling micro processor Micro Processor The micro processor circuit is the intelligent part of the system and build around a Zilog micro processor U8 The CPU runs at 20MHz controlled from the crystal Y1 The micro processor has built in Watchdog circuit and will reset t
47. or driving the Power transformer Using the new FET s from International Rectifier with low gate charge increases the switching speed and hereby decreases the power switch loss The power loss in the FET s is low due to the very low ON resistance Cycle by cycle switch current is measured with a current transformer T302 The output current of the current transformer is reduced 100 times due to the 1 100 transformer ratio The PWM Module for current mode control and overload protection uses the current transformer signal Power Transformer The ferrite power transformer T301 is wound on an ETD 59 coil form and is designed with minimum creepage of 6 mm from primary to secondary windings Three layer of high temperature isolation material is applied between primary and secondary windings Resistive loses and loses from high frequency skin depth effects are reduced to a minimum by use of 0 1 mm isolated copper foil in the primary and the secondary windings DANFYSIK A S DK 4040 JYLLINGE DENMARK MAGNET POWER SUPPLY SYSTEM 7000 De 46 4 4 8 Output filter The power transformer current is rectified and filtered by L301 C304 and C314 High speed diodes from International Rectifier decreases the switching loses in the diodes and the reflected reverse recovery current in the switch FET s in the primary The storage choke L301 is wound on an ETD 49 coil form Thin parallel enamelled copper wires make the windings in the choke Thin w
48. osen segment will flash Setting up the MPS Two dip switches are available for setting up of the power supply 35V 75V_setup The analogue 10V output voltage read back can be scaled for either 35V or 75V Factory settings are indicated on the back of the SYSTEM 7000 cabinet Output Voltage 35V 75V P803 SW1 Closed Open P901 SW1 Closed Open P901 SW2 Closed Open Bandwidth setup For highest stability and fastest response time the load impedance transfer function is incorporated in the total loop gain Therefore it is necessary to adapt the internal gain and frequency response of the loop to match the actual connected load The current loop gain can be change between 1 5 and 10 on switch P302 1 14 and 20dB The lowest loop pole can be shifted a decade upwards with switch P306 DANFYSIK A S DK 4040 JYLLINGE DENMARK MAGNET POWER SUPPLY SYSTEM 7000 De Gain factor 1 5 10 factory P302 SWI Closed Closed Open P302 SW2 Closed Open Open Frequency Pole gt Low factory High P306 SW1 Closed Open Current Voltage mode This switch setting is for internal use and debugging only by authorized Danfysik service personnel In general it sets the unit to a voltage supply where a 20A full scale setting gives a voltage output of approximately 35V Loop mode Current mode factory Voltage mode P305 SW1 Open Clos
49. out too much gain just adequate to cancel any phase shift and gain variations from the load and output stage In other words the next loop sees a linear load without any phase shift and gain deviations and is therefore simpler to make Outer loop The outer loop ensures the over all stability of the power supply This loop amplifies the ERROR signal coming from the summing resistor R304 and it is built upon operational amplifiers U301 and U302 A local clamp loop around U301 and U302 is provided Saturation of U302 is avoided by this clamp loop The impedance of the output load affects the actual frequency response of the loop The gain of the current loop bandwidth can be changed up to 20 dB on switch P304 Current Error Amplifier A second summing resistor R361 is added The signal from this is amplified to a magnitude of 2 Current error equal to 10V signal Power Amplifier The Linear Power Amplifier class A B is souring the output current of the MPS SYSTEM 7000 The AC DC Converter supplies the Power Amplifier The supply voltage level is Vce controlled Meaning that collector emitter voltage is 10V when the transistor is souring current The amplifier is designed with operational amplifier and discrete bipolar signal and power transistors The differential amplifier U501 located in input separates signal and power ground U502 controls the voltage loop and compensation of the Power Amplifier Output of U502 is lev
50. ping the compensating current to find the actual DCCT current again When the DCCT current again is below its maximum rated value then the compensating current will after some time cancel the primary ampere turns The cores will now be de saturated and the circuit will lock in The interlock circuit receive an AC signal from the zero detector driver via a short circuit in the transducer head This signal is rectified and drives Q 4 that is part of the interlock chain In this way both a missing driving signal and a missing cable connection is detected It is made from the local 12V power supply interlock together with the interlocks mentioned above DANFYSIK A S DK 4040 JYLLINGE DENMARK MAGNET POWER SUPPLY SYSTEM 7000 De 42 4 4 AC DC Converter Module Schematic 84655 3 sheets Assy 84654 PWM module Schematic 84663 1 sheet Assy 84662 A small PCB with SMD components containing the PWM control is placed in the Converter The AC DC Converter is supplied from 3 phase line including neutral Inside of the main contactor controls converter start stop A 6 pulse rectifier and a LC filter ensure a high power factor The rectified filtered DC voltage supplies a 70 kHz H bridge Push Pull Converter The ferrite power transformer is wound on an ETD 59 coil form designed with minimum creepage of 6mm from primary to secondary windings The UNITRODE UC3846 PWM controller controls the Push Pull converter The UC3846 auxiliary
51. plifier module Schematic 84571 9 sheets Assy 84570 The Power Amplifier module has the following functions on board Power amplifier interface specification ON OFF STANDBY control Protection circuits and Interlock Analog Local Remote current SET point controls Analog measurements Current regulation Power Amplifier Load dump circuit DC Current Transducer Interface to Display amp AC DC Converter 5V linear regulator Two modules are connected to the Power Amplifier module 1 The Power Converter module See description in Converter section 2 The Display panel See description in Display section Power Amplifier Interface specification The Regulation module has following connection P108 Analog signals to Front Panel Header 16 pole for ribbon cable P110 Digital signals to Front Panel Header 40 pole for ribbon cable P115 Internal Fan 24VDC Molex serie 231 2 pole P116 Amplifier supply voltage V Faston Receptacles 6 3x0 8mm P117 Amplifier supply voltage GND Faston Receptacles 6 3x0 8mm P118 Amplifier supply voltage V Faston Receptacles 6 3x0 8mm P119 Converter control Header 26 pole for ribbon cable Connector P108 Analog signals To From the Front Panel DANFYSIK A S DK 4040 JYLLINGE DENMARK MAGNET POWER SUPPLY SYSTEM 7000 De 32 Pin no Name VO Description amp Specification 1 Local Reference I 0 10VDC from DAC circuit in Front Panel 2 Current
52. s ON S present in the FAULT state OFF a INTL ON State FAN Output RESET Y l Converter INTL Else OFF OFF Not Powered ER aa ON ON Powered a RES FAULT ON Not Powered AC Power ne INTE ON OFF no INTL amp Off Reset DANFYSIK A S DK 4040 JYLLINGE DENMARK MAGNET POWER SUPPLY SYSTEM 7000 Mode 1 ON amp OFF through STANDBY In this mode the power supply must first be set into the stand by state before entering the ON or OFF state An interlock puts the power supply immediately in the FAULT state In the stand by mode is the output converter without power State FAN Output Converter OFF OFF Not Powered ON ON Powered STB 1 ON Not Powered FAULT ON Not Powered Mode 2 ON OFF through STANDBY This mode can be seen as a mixture of mode 0 and 1 Here the inserted stand by mode is actually nearly the same as the ON state but with the output forced to zero compared to mode 0 An interlock puts the power supply immediately in the FAULT state In the stand by mode the output converter is with power but forced to zero output State FAN Output Converter OFF OFF Not Powered ON ON Powered STB 2 ON Powered FAULT ON Not Powered The STB transition is locally initiated by pressing the reset button and thereafter at the same time the ON button Remotely the STB command must be issued De 11 Else AA Va N ONS OFF J INTL N A event
53. t of this report you will be issued instructions for the repair replacement or return shipment Please include the Model no Type no Serial no and Order no for the Power Supply on any communication with DANFYSIK A S or our representative Installation requirements During installation of the Power Supply local rules and regulations for electric power supplies should be respected and the following conditions and installations should be available ki A normal dust free room with humidity not above 80 and a room temperature within 0 to 40 centigrade E Three phase Mains voltage including neutral except 208V excl neutral switched and fused Ground connection according to the local authority regulation and the requirements for the equipment Please see specification sheet chapter 1 2 in this manual for actual figures for this power supply DANFYSIK A S DK 4040 JYLLINGE DENMARK MAGNET POWER SUPPLY SYSTEM 7000 el 7 2 4 Installation Before and during installation of the Power Supply the following points should be checked carried out ak e 2 A Check that the main voltage and frequency matches to the specified and labelled requirements Check that screw connections from the output terminals are tightened Check that all screws on D sub connectors are tightened If the External Interlock 1 is unused then short circuit the terminals If the External Interlock 2 is unused then short circuit the termi
54. tatus External trig Factory Program Ground Rack Fan fuse Ek AL 1 External Interlocks Parallel units to master Parallel units to slaves AC Main Power Ac control input e MPS status External trig Factory Program Ground Rack Fan fuse O External Interlocks Parallel units to master Parallel units to slaves AC Main Power Ac control input MPS status External trig Factory Program Ground Rack Fan fuse External Interlocks Parallel units to master Parallel units to slaves Termination plug Digital Es Current Analog Output o O lod Master Slave Digital Current Analog Output a O lod Master Slave Digital Current Analog Output O lod Master Slave Example of a Master Slave configuration with two slaves DANFYSIK A S DK 4040 JYLLINGE DENMARK MAGNET POWER SUPPLY SYSTEM 7000 e 9 2 RS422 or RS485 Multidrop configuration Up to 32 SYSTEM 7000 units can be connected in a RS422 or RS485 multidrop configuration It is also possible to run a Master Slave configuration within a multidrop system All units must be connected in order to read the individual unit interlock status signals but for controlling the system only the master connection is necessary Trying to control one of the slaves will have no effect as the control commands are disabled on the slaves To set up
55. th control power ON 30 min Drift Long term 8 hours 100ppm Line regulation 10 slow T gt 1 min Na 1 fast T gt 3 ms Na Load regulation 10 Yo resistance change T gt 1 min Na OVERALL DIMENSIONS AND WEIGHT CABINET MM Height ww see 0800 9 oc 132 5 Width 480 3 Depth kone sis 525 WEIGHT approx Kg Net weight 25 Shipping weight 27 INPUT OUTPUT INTERFACES Analogue 0 10VDC Set Current Current Current Error Voltage readback Digital SV TTL Control Status Interlock DANFYSIK A S DK 4040 JYLLINGE DENMARK 4 Number of output channels 1 Output polarity BIPOLAR TEMPERATURE RATINGS OPERATING Centigrade Ambient temperature 0 to 40 STORAGE temperature 20 to 50 MAIN COOLING SYSTEM Air cooling 0 40 AC SUPPLY POWER MAINS VOLTAGE See front page AC voltage 10 48 62 Hz MAINS CURRENT 208VAC Up to 5 5 Amps pr phase 400 415VAC Up to 2 75 Amps pr phase LED INDICATIONS Status ON OFF READY RESET Fault Over temp Internal AC Ground External Over Voltage Over Current Control mode Remote and Local 7 segment display for indicating of Output Voltage Output Current COMPUTER INTERFACE RS232 RS422 RS485 LOAD Recommended below 500mH Loop might need adjustment to specific load MAGNET POWER SUPPLY SYSTEM 7000 e 1 3 Warranty and warranty repair DANFY
56. then go to No answer error module ENDIF ENDIF UNTIL 1 Ps An ERROR message includes a BELL DANFYSIK A S DK 4040 JYLLINGE DENMARK REM loop endless Bell ASCII 7 MAGNET POWER SUPPLY SYSTEM 7000 e 3 7 1 iz 18 Software Profile Programming SYSTEM 7000 is delivered with the software profile option With the ramp profile SW it is possible to down load and run a predefined ramp sequence that the output current must follow The SYSTEM 7000 supports Equal timeslot method The examples below are shown for a uni polar profile For bipolar profiles the output current may also be set as negative Equal time slot ramp profile method With the Equal time slot method it is possible to download up to 512 current set values and a single time slot value that will be used for all set values Only one stack is available This profile method is especially useable for faster and more accurate curves fitting profiles e g as a function generator To use the Equal time slot method at least the following steps must be preformed Clear and set the stack RAMPSET parameter Program the stack R parameter Start the stack RAMP parameter Read the status of the running stack RAMP PS AN values must be given as a floating point number scaled to 1 00000 That is 2 5ms must be entered as 0 00250 and 19 54 output current as 0 1954 Please refer to ApBCPswla doc Software commands
57. ther detail description These commands are optionally available SW RAMP PROFILE COMMANDS Equal Time slot method Summary R Write data to the stack RAMPSET Configure the ramp operation RAMP Control the stack operation See ApBCPswlc doc for detail Software commands DANFYSIK A S DK 4040 JYLLINGE DENMARK MAGNET POWER SUPPLY SYSTEM 7000 e 4 4 1 22 Theory of operations Introduction The power supply is designed to supply a magnet with direct current stabilised to 100 ppm of maximum output current The main AC input supply is connected through a contactor which turns on the power in two steps to minimise the inrush current Step one with R201 to R204 connected in parallel with the mains for a certain time In the second step the resistors will be short circuit The voltage is rectified in a 6 pulse rectifier and filtered with a L_C low pass filter The output current is controlled by means of a linear Vce controlled four quadrant power amplifier One power supply is capable of transforming up to 1 5K W of power at a maximum of 20A and 75V If more current is required up to five power supplies may be arranged in parallel A 70 kHz Push Pull converter supplies the Power Amplifier The Vce voltage of the Power Amplifier controls this converter Stabilisation is achieved by comparing the voltage across the burden resistor connected to an ultra high precision D C current transformer DCCT with the 10V set signa
58. ton Receptacles 6 3x0 8mm P108 Converter control Header 26 pole for ribbon cable Connector P108 To From the AC DC Converter Board Pin no Name VO Description amp Specification 1 Output Voltage of Power Amplifier Feedback to Vce regulation 2 ON Converter pulse width modulator ON OFF 5V ON I I 3 PWR ON O Collector from opto coupler Signal from Main contactor Used in ON chain 4 PWR ON O Emitter from opto coupler Signal from Main contactor Used in ON chain O AC line voltage detector OK 15V Fault open O Signal from Main contactor Part of Machine Protection System signal ON 0V OFF open 5 AC Fault 6 PWR Contact 7 ON Relay I Opto coupler Main contactor ON OFF 0V ON 8 Inrush Relay I Opto coupler Inruch relay OV End of inruch time 9 14 Spare 15 16 15VUREG O 17 18 GNDUREG 19 20 B 5V O 21 22 15V O 23 26 GNDS Auxiliary Power The Auxiliary Power delivers the supply voltages for the Converter control the Power Amplifier board and the Front Panel See sheet 2 of the diagram 84655 A 15V regulated auxiliary voltage is generated on the secondary side of the converter This voltage supplies the secondary side regulation feedback in the converter The 15V supply voltage is also used on the Amplifier Board The Front Panel uses the unregulated 15V supply A 18V regulated auxiliary voltage is generated on the primary side of the converter This voltage supplies the primary side regulation a
59. ut pin description for this connector at the back of the power supply please refer to chapter 3 6 The selection between the RS232 RS422 and RS485 mode is done through straps located on the Display Controller Module Please refer to chapter 3 6 about strap settings DANFYSIK A S DK 4040 JYLLINGE DENMARK De 30 MAGNET POWER SUPPLY SYSTEM 7000 4 2 9 Front Panel Interface specification The Front Panel has following connection Connector X1 Analog signals To From the Front Panel Pin no Name VO Description amp Specification 1 Local Reference O 0 10VDC from DAC circuit in Front Panel 2 Current Limit O 0 10VDC from current limit potentiometer 3 Voltage Measured I 0 10VDC to BNC connector in Front Panel 4 Current Measured I 0 10VDC to BNC connector in Front Panel 5 Current Setpoint I 10VDC to BNC connector in Front Panel 6 Number of units in parallel I 1 7VDC to ADC in Front Panel 7 10 Spare 11 12 15V I 13 14 15V I 15 16 GNDA Connector X4 Digital signals To From the Front Panel Pin no Name VO Description amp Specification 1 Local Remote O Signal from Processor 0V Remote 5V Local 2 OFF Local O Active low signal from push button in Front Panel 3 OFF status I SV to OFF status LED 4 Standby Reset O Active low signal from push button in Front Panel 5 Standby status I SV to Standby status LED 6 ON Local O Active low signal from push button in Front Panel 7 ON status I 5V t
60. uters and terminals The RS422 may be configured in a multidrop system RS485 is only supported under certain conditions See description below The connector labeled digital is the remote serial interface port Pin description for the digital port DB25 located at the back of the power supply RS232 remote line RS422 485 remote line DB25 DB25 Pin No Signal Pin No Signal 2 Tx 25 RETURN 3 Rx 9 Tx High 25 RETURN 10 Tx Low 11 Rx High 12 Rx Low Rx Signals received by the Control Module from its host Tx Signals transmitted by the Control Module to its host NOTE The selection between RS232 RS422 and RS4835 is selected through straps on the Display Controller Module Serial bus Strap ST2 Strap ST3 Strap ST4 Strap ST10 RS232 Open Open Close Open RS422 Open Close Open Open 4 Wire RS485 Open Close Open Close 2 Wire RS485 Close Open Open Close The default serial setting is 8 BIT DATA NO PARITY AND 2 STOPBIT and baud rate 9600 The communication is done by transmitting characters in ASCII code terminated by CARRIAGE RETURN The termination characters from the Power Supply are LINE FEED and CARRIAGE RETURN An ERROR message includes a BELL Bell ASCII 7 NOTE None of the serial lines has control signals RS485 communication RS485 is only supported under certain conditions These are Disable Line
61. ween Output ground and chassis and interlock is activated DANFYSIK A S DK 4040 JYLLINGE DENMARK 4 3 11 4 3 12 4 3 13 4 3 14 4 3 15 MAGNET POWER SUPPLY SYSTEM 7000 Me 36 Soft start The soft start circuit enables the Power Amplifier to smoothly ramp up the output current This circuit has nothing to do with the normal ramp time controller in the regulation circuit but ensures only a proper start of the Power Amplifier The circuit is build around U91 1 When the main power signal switches on the integrator output ramps slowly up until D903 is reversed It takes about 3 seconds to ramp to max output Soft Start pulls down the current limit signal via D903 Slowly this voltage increase and finally the D903 are reversed Analog local remote current set point controls Shifting between Local and Remote SET value is done in the analog switch U906A Slew Rate limit The slew rate limit is build around U9OS The slew rate is adjustable from 5A sec to 400A sec at P902 Always adjust to minimum slew rate needed for best protection of the system Current limit SET value from U906A is limited via the voltage from the Current Limit trimmer on the back side of the Front Panel PCB U908 and U909 are controlling this limitation Summed Measured Current The measured current signal from U301B is converted into a proportional current U914A and U920A Each Slave unit feeds this current to the parallel interface cable
62. when an error is detected although the command isn t fully transmitted DANFYSIK A S DK 4040 JYLLINGE DENMARK De 17 Below is an example written in BASIC on how to turn ON the power supply and read the status without and with acceptance answer MAGNET POWER SUPPLY SYSTEM 7000 Turning the power supply ON and reading evaluating the status with always answer disabled LPRINT N CHRS 13 LPRINT S1 LINPUT S1 IF LEFT S18 1 CHRS GOTO ERROR HANDLING ENDIF J 1 DO IF MID S1 J 1 GOSUB STATUS J _ ACTIVE ELSE GOSUB STATUS J ACTIVE ENDIF J J 1 UNTIL J 24 REM Turns the power supply on REM Issues the status command REM Read the MPS reply REM Is it an error message reply REM Yes then go to error module REM evaluate status reply REM set this status bit active REM set this status bit inactive Turning the power supply ON with always answer enabled J 0 ERROR DO J J 1 LPRINT N CHRS 13 LINPUT RES IF LEFTS RES 1 CHRS ERRORS RES ELSEIF RE OK BRAKE ELSEIF J 6 IF LEFT ERROR 1 CHR REM Counter for maximum attempts REM Turns the power supply on REM Read the MPS reply with 0 1 Sec time out REM Is it an error reply REM Mark the error code REM Is it a good reply REM then exit DO loop REM Try only six times REM Was it error reply GOTO ERROR_HANDLING REM Yes then go to error module ELSEIF GOTO NO COMMUNICATION REM Yes

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