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Danfysik SYSTEM 7000 Manual

Magnet power converter
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CUSTOMER
OUTPUT DATA :
ORDER NO
PART NO
SERIAL NO
AC INPUT
OUTPUT DATA :
INTERFACE
REV.
By
1.0
DT
1.1
DT
1.2
DT
1.3
JFL
1.4
JFL
DANFYSIK A/S ! DK - 4040 Jyllinge ! Denmark ! Tel.: +45 46 79 00 00 ! Fax.: +45 46 79 00 01
SYSTEM 7000
:
:
:
:
:
:
Date
Description
09.06.2004
Initial
Fast ADC and hardware
12.07.2004
triggering
Partial reset to factory
15.03.2005
settings
22.11.2005
Minor corrections
Minor corrections, 415
18.10.2006
added
_______________
_______________
_______________
_______________
_______________
3x208VAC excl Neutral
3x208VAC incl Neutral
3x400VAC incl Neutral
3x415VAC incl Neutral
±20A 35V or 75V
RS232
RS422
Pages
All
28-29
15
All
All
M A N U A L
MAGNET POWER SUPPLY
SYSTEM 7000
RS485

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  • Page 1 Minor corrections Minor corrections, 415 18.10.2006 added M A N U A L MAGNET POWER SUPPLY SYSTEM 7000 DANFYSIK A/S ! DK - 4040 Jyllinge ! Denmark ! Tel.: +45 46 79 00 00 ! Fax.: +45 46 79 00 01...
  • Page 2 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.

  • Page 3: Table Of Contents

    4.3.3 Interlock and ON/OFF/STANDBY status................34 4.3.4 Over Current Interlock......................34 4.3.5 Out of Regulation Status ...................... 34 4.3.6 Power Output Over Voltage Interlock.................. 34 4.3.7 Converter Over Voltage Interlock ..................35 DANFYSIK A/S - DK 4040 JYLLINGE - DENMARK.
  • Page 4 Output filter .......................... 46 MAINTENANCE ..........................47 ..........................47 NTRODUCTION ......................47 REVENTIVE MAINTENANCE ....................47 DJUSTMENT AND CALIBRATION TROUBLE SHOOTING ........................48 DRAWINGS ............................49 PARTS LISTS............................49 PARTS LISTS STRUCTURE ......................49 DANFYSIK A/S - DK 4040 JYLLINGE - DENMARK.

  • Page 5: Introduction And Specifications

    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.

  • Page 6: Specifications

    Output Current INPUT/OUTPUT INTERFACES COMPUTER INTERFACE: Analogue 0±10VDC; RS232 Set Current, Current- Current Error-Voltage-readback RS422 RS485 Digital 5V TTL; Control, Status, Interlock LOAD: Recommended below 500mH. Loop might need adjustment to specific load. DANFYSIK A/S - DK 4040 JYLLINGE - DENMARK.

  • Page 7: Warranty And Warranty Repair

    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.

  • Page 8: Unpacking And Installation

    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.

  • Page 9: Installation

    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 & 2 shorted). DANFYSIK A/S - DK 4040 JYLLINGE - DENMARK.

  • Page 10: Master/ Slave Configuration (Two Or More Unit In Parallel)

    Parallel units Digital Factory Program to master Ground Current Rack Fan Parallel units fuse Analog Output to slaves Termination plug External Interlocks Master Slave Example of a Master/Slave configuration with two slaves DANFYSIK A/S - DK 4040 JYLLINGE - DENMARK.

  • Page 11: Rs422 Or Rs485 Multidrop Configuration

    MAGNET POWER SUPPLY SYSTEM 7000 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.

  • Page 12: Operating Instructions

    ON-S present in the FAULT state. INTL State Output RESET Converter INTL Else OFF-S FAULT {event} Not Powered Powered {no INTL} FAULT Not Powered AC Power {no INTL & Off = Reset} DANFYSIK A/S - DK 4040 JYLLINGE - DENMARK.
  • Page 13 ON button. Remotely the STB command must be issued. 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.

  • Page 14: Local / Remote Control

    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 →...
  • Page 15 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.

  • Page 16: Data Communication

    MAGNET POWER SUPPLY SYSTEM 7000 Data communication The SYSTEM 7000 uses the standard serial interface RS232 and RS422 which is compatible with many computers and terminals. The RS422 may be configured in a multidrop system. RS485 is only supported under certain conditions. See description below.

  • Page 17: Termination Using Rs 422 Or Rs 485

    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.

  • Page 18: Programming

    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.
  • Page 19 GOTO ERROR_HANDLING :REM Yes then go to error module ELSEIF GOTO NO_COMMUNICATION :REM Yes then go to “No answer” error module ENDIF ENDIF UNTIL -1 :REM loop endless An ERROR message includes a "?BELL". (Bell = ASCII 7.) DANFYSIK A/S - DK 4040 JYLLINGE - DENMARK.

  • Page 20: Software Profile Programming

    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.

  • Page 21: Sw Limits

    (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.

  • Page 22: Sw Commands

    MPS. Read the set value. Change to remote control. RLOCK Remote line only Reset interlocks. X is a number from 0 to 9 and Commands in quotation marks are optional DANFYSIK A/S - DK 4040 JYLLINGE - DENMARK.
  • Page 23 These commands are optionally available. SW RAMP PROFILE COMMANDS “Equal Time slot method”. Summary Write data to the stack. RAMPSET Configure the ramp operation RAMP Control the stack operation See ApBCPsw1c.doc for detail Software commands DANFYSIK A/S - DK 4040 JYLLINGE - DENMARK.

  • Page 24: Theory Of Operations

    SOA. The 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.

  • Page 25: System 7000 Interface Specification

    Output is equal to SET value. Current Setpoint Input setponit, 10V equal to 20A for one unit and 40A when two units are in parallel and etc. Measured Shield Measured RTN Setpoint Shield Setpoint RTN DANFYSIK A/S - DK 4040 JYLLINGE - DENMARK.
  • Page 26 Open collector, low ON pulse Unit parallel Master : X mA = X slaves. Slave : 1 mA sink per unit Spare GND A Loop GND GND A Analog GND Not used DANFYSIK A/S - DK 4040 JYLLINGE - DENMARK.
  • Page 27 P103 Pin no: Name Description & Specification This pin is conncted to pin 3 when the SYSTEM 7000 is ON. PIN2&4 Pin 2 and 4 is connected This pin is conncted to pin 1 when the SYSTEM 7000 is ON.
  • Page 28 Open collector output up to 24V/100mA. Active in minimum 2.5ms when a ramp profile has been triggered. Connector FACTORY PROGRAM : Software upgrade plug X2. Only to use by authorized Danfysik service personnel. Pin no: Name Description & Specification ISOGND...

  • Page 29: Display Controller Module

    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.

  • Page 30: Slow Adc Circuit

    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.

  • Page 31: Dc/Dc Converter

    +3.3V for the :-processor is generated from Low-Noise Ultra Low-Dropout Regulator U26. 4.2.8 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.

  • Page 32: Front Panel Interface Specification

    The 3 bit scales the summed regulation error to 2%=10V. Unit2 The 3 bit scales the measured current to 100%=10V. 27-28 B+5V 29-30 GNDD 31-34 +15VUREG Supply For DC/DC Converter 35-40 GNDUREG DANFYSIK A/S - DK 4040 JYLLINGE - DENMARK.

  • Page 33: Power Amplifier Module

    - 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.
  • Page 34 The 3 bit scales the summed regulation error to 2%=10V. Unit2 The 3 bit scales the measured current to 100%=10V. 27-28 B+5V 29-30 GNDD 31-34 +15VUREG Unregulated auxiliary supply voltage from AC/DC Converter 35-40 GNDUREG Connector P115: (To/From the Fan) DANFYSIK A/S - DK 4040 JYLLINGE - DENMARK.

  • Page 35: On/Off/Standby Control

    GNDS 4.3.2 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.

  • Page 36: Interlock And On/Off/Standby Status

    The window span (R807, R814, R822 and R824) is calculated to 2.5%. 4.3.6 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.

  • Page 37: Converter Over Voltage Interlock

    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 between Output ground and chassis and interlock is activated. DANFYSIK A/S - DK 4040 JYLLINGE - DENMARK.

  • Page 38: Soft Start

    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.

  • Page 39: Summed Current Error

    ±10V. The scaling is controlled by a 3-bit code coming from the Front Panel. 4.3.17 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.

  • Page 40: Current Regulation

    2- Outer loop for ppm stabilisation. Outer LOOP Inner LOOP DCCT 1 Driver + Out DCCT Filter 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.

  • Page 41: Current Error Amplifier

    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.

  • Page 42: Load Dump

    4.3.21 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.
  • Page 43 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.

  • Page 44: Ac/Dc Converter Module

    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.

  • Page 45: Ac/Dc Converter Interface Specification

    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.

  • Page 46: Current Mode Push-Pull Regulator

    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.

  • Page 47: Fet Gate Driver

    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.

  • Page 48: Output Filter

    Thin wires 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.

  • Page 49: Maintenance

    MAGNET POWER SUPPLY SYSTEM 7000 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.

  • Page 50: Trouble Shooting

    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: > Failure in thermal breaker. DANFYSIK A/S - DK 4040 JYLLINGE - DENMARK.

  • Page 51: Drawings

    Cable assy P85088 P85088 P85094 P85094 81584570 81584570 81084662 81084662 81585088 81585088 SMD, Amplifier SMD, Amplifier PWM Control PWM Control SMD, Display SMD, Display 81584662 81584662 SMD, PWM Control SMD, PWM Control DANFYSIK A/S - DK 4040 JYLLINGE - DENMARK.
  • Page 52 Cable assy P85088 P85088 P85094 P85094 81584570 81584570 81084662 81084662 81585088 81585088 SMD, Amplifier SMD, Amplifier PWM Control PWM Control SMD, Display SMD, Display 81584662 81584662 SMD, PWM Control SMD, PWM Control DANFYSIK A/S - DK 4040 JYLLINGE - DENMARK.

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