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- Page 1 Instruction Manual EVA SERIES High Voltage Power Supply MODEL : SERIAL# : DATE : SPELLMAN HIGH VOLTAGE ELECTRONICS CORPORATION 475 Wireless Blvd. Hauppauge, New York, 11788 +1(631) 630-3000*FAX: +1(631) 435-1620* E-mail: sales@spellmanhv.com Website: www.spellmanhv.com 118145-001 Rev A EVA MANUAL...
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Page 2: Power Supply
Front panel digital voltage and current meters, 3.5 digit, accurate to within 1%. Corporate Headquarters www.spellmanhv.com 128106-001 REV. A Hauppauge, New York USA Spellman High Voltage is an ISO 9001:2008 and ISO 14001:2004 registered company +1-631-630-3000 FAX: +1-631-435-1620 e-mail: sales@spellmanhv.com Copyright © 2014 Spellman High Voltage Electronics Corp. - Page 3 (HPF) is available. Additional High Voltage Output Connectors Metering: Spellman’s EVA is designed to provide 1, 2 or 3 parallel con- Front panel digital filament current and emission current figured high voltage output connectors. The standard unit meters, 3.5 digit, accurate to within 1%.
- Page 4 Corporate Headquarters www.spellmanhv.com 128106-001 REV. A Hauppauge, New York USA Spellman High Voltage is an ISO 9001:2008 and ISO 14001:2004 registered company +1-631-630-3000 FAX: +1-631-435-1620 e-mail: sales@spellmanhv.com Copyright © 2014 Spellman High Voltage Electronics Corp.
- Page 5 50 Power Supply Common Power Supply Ground Corporate Headquarters www.spellmanhv.com 128106-001 REV. A Hauppauge, New York USA Spellman High Voltage is an ISO 9001:2008 and ISO 14001:2004 registered company +1-631-630-3000 FAX: +1-631-435-1620 e-mail: sales@spellmanhv.com Copyright © 2014 Spellman High Voltage Electronics Corp.
- Page 6 LINE INPUT ETHERNET 16.875 [428.63] Corporate Headquarters www.spellmanhv.com 128106-001 REV. A Hauppauge, New York USA Spellman High Voltage is an ISO 9001:2008 and ISO 14001:2004 registered company +1-631-630-3000 FAX: +1-631-435-1620 e-mail: sales@spellmanhv.com Copyright © 2014 Spellman High Voltage Electronics Corp.
- Page 7 OUTPUT DANGER WARNING 16.870 [428.50] Corporate Headquarters www.spellmanhv.com 128106-001 REV. A Hauppauge, New York USA Spellman High Voltage is an ISO 9001:2008 and ISO 14001:2004 registered company +1-631-630-3000 FAX: +1-631-435-1620 e-mail: sales@spellmanhv.com Copyright © 2014 Spellman High Voltage Electronics Corp.
- Page 8 1 2 3 4 5 6 7 8 Corporate Headquarters www.spellmanhv.com 128106-001 REV. A Hauppauge, New York USA Spellman High Voltage is an ISO 9001:2008 and ISO 14001:2004 registered company +1-631-630-3000 FAX: +1-631-435-1620 e-mail: sales@spellmanhv.com Copyright © 2014 Spellman High Voltage Electronics Corp.
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Page 9: Important Safety Precautions
CAUTION notes in the text indicate procedures to be followed to avoid possible damage to equipment. Copyright © 2000, Spellman High Voltage Electronics Corporation. All Rights Reserved. This information contained in this publication is derived in part from proprietary and patent data. This information has... -
Page 10: Wichtige Sicherheitshinweise
WICHTIGE SICHERHEITSHINWEISE SICHERHEIT DIESES HOCHSPANNUNGSNETZTEIL ERZEUGT LEBENSGEFÄHRLICHE HOCHSPANNUNG. SEIN SIE SEHR VORSICHTIG BEI DER ARBEIT MIT DIESEM GERÄT. Das Hochspannungsnetzteil muß immer geerdet sein. Berühren Sie die Stecker des Netzteiles nur, wenn das Gerät ausgeschaltet ist und die elektrischen Kapazitäten des Netzteiles und der angeschlossenen Last entladen sind. Die internen Kapazitäten des Hochspannungsnetzteiles benötigen ca. - Page 11 PRECAUTIONS IMPORTANTES POUR VOTRE SECURITE CONSIGNES DE SÉCURITÉ ETTE ALIMENTATION GÉNÈRE DES TENSIONS QUI SONT DANGEUREUSES ET PEUVENT ÊTRE FATALES OYEZ EXTRÊMENT VIGILANTS LORSQUE VOUS UTILISEZ CET ÉQUIPEMENT Les alimentations haute tension doivent toujours être mises à la masse. Ne touchez pas les connectiques sans que l’équipement soit éteint et que la capacité à la fois de la charge et de l’alimentation soient déchargées.
- Page 12 IMPORTANTI PRECAUZIONI DI SICUREZZA SICUREZZA QUESTO ALIMENTATORE GENERA TENSIONI CHE SONO PERICOLOSE E POTREBBERO ESSERE MORTALI. PONI ESTREMA CAUTELA QUANDO OPERI CON QUESO APPARECCHIO. Gli alimentatori ad alta tensione devono sempre essere collegati ad un impianto di terra. Non toccare le connessioni a meno che l’apparecchio sia stato spento e la capacità interna del carico e dell’alimentatore stesso siano scariche.
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Page 13: Table Of Contents
Contents EVA HIGH VOLTAGE POWER SUPPLY INTRODUCTION ........................ 1 .............................. 1 ESCRIPTION OF THE ERIES .................................. 1 TANDARD EATURES 1.2.1 ................................ 2 EMOTE PERATING EATURES 1.2.2 .......................... 2 YSTEM TATUS AND AULT IAGNOSTIC ISPLAY ..................................... 3 NPUT ... - Page 14 6.10 .................................... 2 4 PERATION 6.11 ................................... 2 6 TANDARD EATURES MAINTENANCE .................................... 32 .................................. 3 2 ERIODIC ERVICING .................................. 3 2 ERFORMANCE ................................ 3 2 IGH OLTAGE IVIDERS ...
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Page 15: Eva High Voltage Power Supply Introduction
3U‐3/6kW 6U‐12kW FRONT PANEL POTENTIOMETER: A ten turn The EVA Series of high voltage power supplies provides potentiometer is provided for easy programming of the very well regulated, low ripple high voltage in a highly desired voltage regulation value. efficient, compact design, specifically for electron beam FRONT PANEL DIGITAL METERS: 3.5 digit meters are coating applications. Extremely stable output voltage provided to view the output voltage and current. A and digitally configurable arc intervention circuitry convenient Preset View Feature is provided: If the HIGH result in significant performance improvements over VOLTAGE OFF button is depressed and held in, the previously available technology. present voltage and current programming values will be All of these advancements are possible only by displayed in actual kV and mA on the front panel Spellman’s long history in high voltage power meters. conversion technology. This series of power supplies utilizes extremely advanced quasi‐resonant PWM conversion techniques, along with sophisticated digital technology. Custom units to meet special requirements and specific applications can also be provided. Standard Features The EVA Series incorporates several standard features ETHERNET AND RS‐232 INTERFACE: DSP based SMT and software configurable items designed to optimize circuitry provides both Ethernet and RS‐232 digital user utility, satisfaction and safety. interfacing capability simplifying the integration of the EVA into your system design. A VB GUI is provided for FRONT PANEL CONTROL POWER/HIGH VOLTAGE ON/ the RS‐232 and Ethernet. HIGH VOLTAGE OFF SWITCHES: These intuitive front panel controls allow the user to easily turn the unit on and enable/disable the generation of high voltage. ... -
Page 16: 1.2.1 Remote Operating Features
External Interlock for this type of safety control. INTERNAL FAULT PROTECTION: The EVA series continually monitors internal circuits critical to the EXTERNAL INTERLOCK: Interlock connections are proper operation of the power supply. In the event that provided on the rear panel interface connecter for one of these circuits malfunctions, the fault detection connection to a customer implemented safety switch. circuit turns off the high voltage and reverts the unit to The unit will not high voltage enable unless the interlock the POWER DOWN mode with the CONTROL POWER ON circuit is closed. During high voltage operation, opening indicator lamp flashing slowly. The applicable fault the interlock circuit will cause the high voltage to shut indicator will be illuminated on the front panel off. This circuit should be used for safety interlock diagnostic display requiring the user to clear (cycle the circuits. Spellman strongly recommends the use of CONTROL POWER ON switch, cycle the AC line power or External Interlocking for safety purposes. toggle the Reset/External Inhibit signal line) before high voltage can be re‐enabled. 1.2.2 System Status and Fault Diagnostic OUTPUT CABLE: All standard models are provided with Display a ten foot shielded high voltage output cable. The cable “Dead Front” backlight type indicators provide system is designed so that it can be easily removed from the operation and fault condition information. If a fault mating receptacle located on the rear of the chassis. occurs the power supply will revert to the POWER DOWN mode. This is indicated by the flashing of the 1.2.1 Remote Operating Features CONTROL POWER ON indicator. To reset the latched fault: cycle the CONTROL POWER ON switch, cycle the REMOTE PROGRAMMING: Allows remote adjustment ... -
Page 17: Input Voltage
400VAC 400 Volt Input INTERLOCK. 360‐528Vac, 50/60Hz three phase input voltage (12kW SYSTEM FAULT: Indicates an internal fault has occurred. units only). OVER VOLTAGE: Indicates the overvoltage protection circuitry has caused the power supply to turn off. The Options default setting for the overvoltage protection circuitry is internally set to 105% of rated output voltage. This level LL(X) High Voltage Cable Length can be set to anywhere from 0‐ 105% of rated output Custom length high voltage output cables, indicated in voltage by the user via the remote overvoltage foot measurement units. Various predetermined lengths programming capability, see Chapter 3 for more details. are available along with entirely custom lengths; contact OVER CURRENT: Indicates the output current has Spellman Sales Department for details. exceeded the programmed current trip level when the HV2 Two High Voltage Connecters AOL (Adjustable Overload Trip) feature has been software configured using the digital interface. Optional two (2) high voltage output connecters that are connected in parallel for powering two beam OVER TEMP: Indicates that excessive temperature has channels with a single high voltage power supply. been sensed within the chassis and internal protection circuitry has shut down the power supply. EVA Manual 3 118144‐001 REV. A ... -
Page 18: Interpreting The Model Number
Output Power (kW) two gun output boxes for two channel applications. Input Voltage Option Code FIL3 Filament Gun Supply‐Three Channels Custom “X” Number Three optional beam controllers (filament supplies) and • The maximum voltage in kV (5, 10) three gun output boxes for three channel applications. • The polarity of the unit: Negative (N) HPF High Powered Filament • The maximum output power in kilowatts (3, 6, 12) 50 amp filament power supply. • The selected input voltage (3PH, 1PH, 400VAC) See Section 5 for more information on these options. With few exceptions, these options can be retrofitted to • The option codes for all options that are included. your power supply at the factory in a short time. For • Custom units have a unique 4 digit X number after price and retrofit arrangements, contact Spellman’s the option code(s). This X number references a Sales Department at: unique specification control drawing that takes sales@spellmanhv.com precedent over the standard EVA data sheet specifications. EVA Manual 4 118144‐001 REV. A ... -
Page 19: Eva High Voltage Power Supply Inspection And Installation
Chapter 2 EVA HIGH VOLTAGE POWER SUPPLY INSPECTION AND INSTALLATION Airflow Requirements Initial inspection and preliminary checkout procedures are recommended. For safe operation, please follow EVA units (3/6/12kW) are forced air cooled, air enters the step‐by‐step procedures described in Chapter 3, the chassis via openings on the right and left side panels Operating Instructions. and air is forcibly exhausted out the rear panel via a single fan. Whatever mechanical installation is implemented airflow into and out of the unit must not Initial Inspection be compromised. Additionally it is the responsibility of Inspect the package exterior for evidence of damage the user to assure that air entering the unit is not above due to handling in transit. Notify the carrier and the maximum ambient temperature of 40°C. Airflow Spellman immediately if damage is evident. Do not volume is 100cfm for 3/6kW units and 300cfm for 12kW destroy or discard any of the packing material used in a units. damaged shipment. After unpacking, inspect the panel and chassis for visible damage. Standard Spellman EVA high voltage power supplies are covered by a warranty. Custom and special order models (with an X suffix in the model number) are also covered by a warranty. Check the specific warranty terms by referring to the Warranty document contained in this operator’s manual. Input Requirements For proper protection of the EVA power supply a circuit breaker protected, dedicated electrical service must be provided for each EVA chassis. EVA units are not phase dependent; the three AC input phase connections can Figure 2.1 EVA High Voltage Power Supply be orientated in any manner with no adverse effect on Airflow ... - Page 20 UNIT/INPUT VOLTAGE FACTORY CONFIGURATION MAXIMUM INPUT CURRENT PER PHASE 180‐264Vac, 3 phase, 50/60Hz 3PH (3kW, 6kW & 12kW) 13 amps @ 3kW, 25 amps @ 6kW, 50 amps @ 12kW 180‐264Vac, 1 phase, 50/60Hz 1PH (3kW & 6kW only) 29 amps @ 3kW, 57 amps @ 6kW 360‐528Vac, 3 phase, 50/60Hz 400VAC (12kW only) 25 amps *Input Voltage Must Be Selected At Time of Order* Note: 400VAC Option (360‐528Vac) units do NOT have a rear panel circuit breaker. For proper protection a circuit breaker/fuse protected dedicated 30 amp, three phase electrical service must be provided for each EVA chassis. Table 2.1 Input Voltage/Current Requirements The above maximum input current values assume a unit running at maximum power, operating at low line and taking power supply efficiency and power factor into account. EVA Manual 6 118144‐001 REV. A ...
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Page 21: Eva High Voltage Power Supply Operating Instructions
For three phase input: BROWN, BLACK and BLUE wires are the three phase inputs, they are not phase Chapter 3 dependent and can be connected in any manner. For single phase input: BROWN is line and BLUE is neutral. EVA HIGH VOLTAGE POWER SUPPLY The GREEN/YELLOW or GREEN wire is for chassis safety OPERATING INSTRUCTIONS ground connection. This is a safety ground connection and is NOT adequate for system grounding purposes. Operation Attach the high voltage output cable to the load. WARNING D) Plug the high voltage output cable provided with the unit into the rear of the supply and secure THIS EQUIPMENT GENERATES DANGEROUS appropriately. VOLTAGES THAT MAY BE FATAL. PROPER GROUNDING OF ALL HIGH VOLTAGE EQUIPMENT E) Options Note: See section 5 for hook up and IS ESSENTIAL. operating instructions for the options on your unit. Custom models may also require set up changes. WARNING F) For initial turn‐on, rotate the front panel BEFORE CONNECTING THE POWER SUPPLY TO THE KILOVOLT control potentiometer fully counter‐clockwise AC LINE, FOLLOW THIS STEP‐BY‐STEP PROCEDURE. to the zero voltage position. DO NOT CONNECT THE POWER SUPPLY TO THE AC G) The input power cable may now be connected LINE UNTIL STEP ‘G’ IS REACHED. FAILURE TO to the AC power line. FOLLOW THESE PROCEDURES MAY VOID THE H) Depress the CONTROL POWER ON switch. The ... -
Page 22: Standard Features
Standard Features in approximately 6 seconds after the HIGH VOLTAGE ON switch is depressed. A general note on remote interface circuitry and remote K) To terminate the generation of output power, signal grounding: depress the HIGH VOLTAGE OFF switch. In the HIGH When usage applications dictate, electrical isolation VOLTAGE OFF mode the power supply’s fault and may be required when interfacing with the high voltage interface circuits are still active. power supply in question. For power control signals L) To turn off the power supply, depress the amber such as CONTROL POWER, EXTERNAL INTERLOCK, HIGH CONTROL POWER ON switch to release the switch bezel VOLTAGE OFF and HIGH VOLTAGE ON isolated relay to the out position. All front panel lights should contacts should be used. For status signals and control extinguish. signals such as HIGH VOLTAGE ON status, HIGH VOLTAGE OFF status, EXTERNAL INHIBIT, etc. opto‐isolation should NOTE: If a power supply fault, or system monitoring be used. When usage applications dictate, analog fault occurs, the power supply will revert to the POWER programming and monitoring signals may require DOWN mode. In this mode the output power will be isolation via analog isolation amplifiers. All interface turned off. The CONTROL POWER ON lamp will flash cables should be properly shielded. All power supply indicating a SYSTEM FAULT. To reset the SYSTEM FAULT signals should be referenced to the power supplies cycle the CONTROL POWER ON switch, cycle the AC line signal ground on the rear panel interface connecter. power or toggle the RESET/EXTERNAL INHIBIT signal line. LOCAL/REMOTE PROGRAMMING: Allows adjustment of the output voltage and current via the front WARNING panel/internal controls (local) or external voltage ... - Page 23 REMOTE MONITORS: Test points are made available on the rear panel interface connecter for monitoring the WARNING current and voltage; pin 5 and pin 6 respectively. The test points are always positive, scaling is such that 0‐ IT IS EXTREMELY DANGEROUS TO USE THE 10Vdc corresponds to 0‐100% rated output. Test points EXTERNAL INHIBIT TO STOP HIGH VOLTAGE have an output impedance of 1k ohms, ±1%. See Figure GENERATION FOR THE PURPOSE OF SERVICING OR 3.3 for test point designation. APPROACHING ANY AREA OF THE LOAD CONSIDERED UNSAFE DURING HIGH VOLTAGE LOCAL/REMOTE CONTROL POWER/HV ON/HV OFF: OPERATION Allows for command of CONTROL POWER, HIGH VOLTAGE ON and HIGH VOLTAGE OFF by either the front EXTERNAL INTERLOCK: The External Interlock panel controls or external signals via the rear panel connections are provided on the rear panel interface external interface connecter. connecter, pin 3 and pin 4, intended for use in the connection to a customer provided and implemented LOCAL CONTROL ‐ For local front panel switch command external safety switch. The unit will not enable into of the Control Power functionality a maintained HIGH VOLTAGE ON unless the interlock circuit is closed. connection between pin 12 and pin 13 is required. Once If the interlock is not being used (use is highly connected as outlined above, the front panel CONTROL recommended), a jumper must be installed. During high POWER switch will alternate latch on/latch off with each voltage operation, opening the External Interlock will successive pressing of the switch. For local front panel cause the unit to revert to the HIGH VOLTAGE OFF command of the HIGH VOLTAGE OFF functionality a mode. Subsequent closing of the interlock circuit will maintained connection between pin 14 and pin 15 is NOT return the unit to HIGH VOLTAGE ON mode; this required. ...
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Page 24: Digital Interface (Rs-232/Ethernet )
The factory default Arc Count Shutdown setting of the circuit limiting assembly. Damage to the power supplies Arc Intervention circuitry is such that if 25 arcs occur in internal short circuit limiting assembly is consider a 5 second time period the unit will shut down into the misuse of the unit and repairs will not be covered under POWER DOWN mode displaying an “ARC Fault”. This the warranty. The ARC Intervention Circuitry is correlates to 5 arcs per second for a short timeframe. incorporated and configured to protect the power Additionally there is an Arc Rate Limiter feature. A real supply from excessive arcing, make changes to this time averaging circuit will shut the power supply off circuitry at your own responsibility and risk. with an ARC Fault if 50 arcs occur in a 30 second time Digital Interface (RS‐232/Ethernet) period. This correlates to 1.67 arcs per second for a long time period. This allows the unit to operate in an arc The EVA features standard RS‐232 and Ethernet digital prone environment, tolerating brief intense arcing but interface capability. Please see Appendix A for complete protect itself in the event of excessive long term arcing. details on functionality and operation. ARC parameters can be modified by using the digital interface and provided GUI but changing these settings can have serious consequences. NOTE: Making changes to the ARC Intervention Circuitry along with excessive arcing of the power supply can thermally overheat and damage the internal short Note: The service connection to these units must be protected by an appropriately rated and circuit breaker protected power connection. Figure 3.1 Typical EVA Operating Setup EVA Manual 10 118144‐001 REV. A ... -
Page 25: Figure 3.2A Wiring Diagram For Remote Programming Via Voltage Source
Figure 3.2A Wiring Diagram for Remote Programming via Voltage Source Figure 3.2B Wiring Diagram for Remote Programming via External Resistance EVA Manual 11 118144‐001 REV. A ... -
Page 26: Figure 3.3 Remote Monitor Test Point Designations
Figure 3.3 Remote Monitor Test Point Designations It is recommended to use relay contacts for S1, S2 and S1 must be closed to enable HIGH VOLTAGE ON. S3. Relays should be located as close as possible to the Momentary closure of S2 will enable HIGH VOLTAGE ON. high voltage power supply. Coils should be driven from Opening S1 will disable HIGH VOLTAGE ON and switch isolated sources. Signals are at 24Vdc, 100mA max, and the unit to the HIGH VOLTAGE OFF mode. are only to be used for contact closure. Figure 3.4 Remote Control of Power ON, High Voltage ON and High Voltage OFF EVA Manual 12 118144‐001 REV. A ... -
Page 27: Figure 3.5 External Inhibit Interface Circuit
Figure 3.5 External Inhibit Interface Circuit Figure 3.6 External Interlock Interface Circuit EVA Manual 13 118144‐001 REV. A ... -
Page 28: Figure 3.7 Remote High Voltage On And Remote High Voltage Off Indicator
Figure 3.7 Remote High Voltage ON and Remote High Voltage OFF Indicator Figure 3.8 Remote Overvoltage Adjust Interface EVA Manual 14 118144‐001 REV. A ... -
Page 29: Figure 3.9 Remote Status And Fault Indicator Interface
Figure 3.9 Remote Status and Fault Indicator Interface EVA Manual 15 118144‐001 REV. A ... -
Page 30: Figure 3.10 Jb1 Rear Panel Interface Connecter
Signal Parameters Power Supply Common Power Supply Ground Reset/HV Inhibit Toggle to reset latched faults, Ground = Inhibit, Open = HIGH VOLTAGE ON External Interlock +24Vdc @ open, <25mA @ closed External Interlock Return Return for External Interlock. Pins 3 and 4 must be connected to HV enable mA Test Point 0-10Vdc = 0-100% rated output, Zout = 1kΩ, 1% kV Test Point... -
Page 31: Eva High Voltage Power Supply Principles Of Operation
Chapter 4 EVA HIGH VOLTAGE POWER SUPPLY PRINCIPLES OF OPERATION The EVA series of high voltage power supplies utilizes Simple three/single phase rectification provides the DC sophisticated power conversion technology. A variety of buss voltage for the high frequency inverter. analog, digital and power conversion techniques are An input line cord, circuit breaker, EMI Filter Assembly, employed. This Principles of Operation will introduce contactor, inrush limiting circuitry, bridge rectifier, the basic function blocks that comprise the EVA power electrolytic capacitors, rail inductors and rail capacitors supply. For details on a specific circuit, consult comprise the basic components required for input line Spellman’s Engineering Department. rectification. The EVA power supply is an AC to DC converter. Within Three different input voltages are available for the EVA the power supply, conversions of AC to DC, high Series. If the user is unsure which input voltage is frequency AC, then to high voltage DC take place. By required for the unit on hand, check the identification reviewing functionality of the subassemblies, a basic tag on the rear of the power supply. understanding of the process can be gained. The customer provided AC power input is provided to WARNING the unit via the four conductor AC line cord. Circuit protection is provided by CB1, a fast acting magnetic THE ENERGY LEVELS USED AND GENERATED BY trip type circuit breaker. The load side of CB1 is THE POWER SUPPLY CAN BE LETHAL! DO NOT connected to EMI filter A2. The output of the EMI filter ATTEMPT TO OPERATE THE POWER SUPPLY connects to K1, a three phase contactor. K1 provides UNLESS THE USER HAS A SUFFICIENT KNOWLEDGE fail‐safe type disconnection of the line voltage to the OF THE DANGERS AND HAZARDS OF WORKING power supply rectification circuits. K1’s coil is controlled ... -
Page 32: Inverter
High Voltage Transformer frequency pulse currents are drawn from the metalized film high frequency “rail capacitors” C3 and C12. The output of the Inverter is connected to the primary The POWER PWB – A6 provides the inrush limiting of the High Voltage Transformer. The High Voltage function via R1, R2, R3 and R4. Relays K1 and K2 short Transformer is a step‐up type. Typical secondary out the limiting resistors once the initial charging of C1 voltages are in the range of 1kVac to 5kVac depending and C2 is complete. Resistors R7, R8, and R10, R11 form upon the units specific maximum output voltage rating. two feedback divider circuits with terminating resistors High Voltage Assembly located on the SYSTEM CONTROL PWB – A1. These impedance limited, low voltage + and – rail feedback The High Voltage Assembly will vary depending upon signals are monitored and if any abnormal conditions the model ordered. The circuitry typically consists of appear, circuitry will shut down the power supply. full wave doubler output circuit. Typically a SYSTEM FAULT and AC FAULT indication will Output filtering is typically provided by an L‐C type filter. appear on the front panel if an error in the charging Voltage feedback for regulation and monitoring is circuits has occurred. provided by a high bandwidth resistive/capacitive compensated feedback divider. Current feedback for R5 on the POWER PWB – A6 functions as a bleeder regulation and monitoring is provided by a sense resistor, which is used to discharge the front end filter resistor connected at the low voltage end of the high capacitors C1 and C2. DS1 provides visual indication voltage output section. when DC voltage is present. This indicator should not be relied on for confirming the presence or absence of System Control PWB the DC voltage in any situation where user safety is of The majority of control circuits for power supply concern. controls are located on the SYSTEM CONTROL PWB – ... -
Page 33: Eva High Voltage Power Supply Input Voltage & Options
3kW, 6kW and 12kW units. Optional beam controller (filament supplies) and gun 180‐264Vac, 1Ø Input ‐ 1PH output boxes for two channel applications. This option factory configures EVA units to operate from Filament Gun Supply, 3 Channel‐ FIL3 180‐264Vac, single phase, 50/60Hz input power. Optional beam controller (filament supplies) and gun Available only on 3kW and 6kW units. output boxes for three channel applications. 360‐528Vac Input ‐ 400VAC 5.10 High Power Filament ‐ HPF This option factory configures the EVA units to operate 50 amp filament power supply. from 360‐528Vac, three phase, 50/60Hz input power. Available only on 12kW units. 5.11 Custom Designed Models ‐ X(#) High Voltage Cable Length ‐ LL(X) Units built to customer specifications are assigned an X number by the factory. If this unit is an X model, a Custom length high voltage output cables, indicated in specification control sheet is added at the end of this foot measurement units. Various predetermined lengths instructional manual. Spellman welcomes the are available along with entirely custom lengths; contact opportunity to tailor units to fit your requirements or to Spellman Sales Department for details. develop new products for your applications. Contact the Two High Voltage Connecters ‐ HV2 Spellman Sales Department with your need. Optional two (2) high voltage output connecters that are connected in parallel for powering two beam channels with a single high voltage power supply. EVA Manual 19 118144‐001 REV. A ... -
Page 34: Eva Beam Controller Introduction
Chapter 6 EVA BEAM CONTROLLER INTRODUCTION Description of Beam Controller (Filament Power Supply) Multiple beam control units can be provided, allowing 1, 2 or 3 separate electron guns to be independently operated from a single EVA high voltage power supply. Each beam control unit consists of a beam controller and a gun output box. The beam controller is a 1U (1.75”/44.45mm) rack‐mounted chassis containing the Figure 6.1 EVA System Block Diagram filament power, control and emission (beam) current regulation circuitry. The gun output box contains the high frequency filament transformer which is referenced Standard Features to the high voltage output potential. This box should be mounted close to the electron gun to minimize the The beam controller incorporates several standard length of the high current filament connections. The box features designed to optimize user utility, satisfaction also contains emission (beam) current monitoring and safety. circuitry and provides a feedback signal used to regulate FRONT PANEL BEAM OFF/ BEAM ON SWITCHES: These the emission (beam) current. intuitive front panel controls allow the user to easily Each beam control channel if operated alone can utilize enable/disable the generation of the electron beam. 0 to 100% of the rated emission current capacity of the FRONT PANEL INDICATOR LAMPS: BEAM ON and BEAM EVA high voltage power supply. When two or three OFF indicators are integral with the control switches and beam control channels are used at the same time, the are LED illuminated for reliability and long service life. total system emission current capacity remains the same. Individual channel programming must be done FRONT PANEL POTENTIOMETERS: A ten turn ... -
Page 35: Remote Operating Features
Limit Set value. opening the interlock circuit will cause the BEAM ON to shut off. This circuit should be used for safety interlock FRONT PANEL DIGITAL METERS: 3.5 digit meters are circuits. Spellman strongly recommends the use of provided to view the Emission (Beam) Current, Filament External Interlocking for safety purposes. Limit Set value and Filament Operating Current. A convenient Preset View Feature is provided: If the BEAM OFF button is depressed and held in, the emission System Status and Fault Diagnostic (beam) current programming value will be displayed in Display mA on the right front panel meter. Additionally when “Dead Front” backlight type indicators provide system the BEAM OFF button is depressed and held in, the operation and fault condition information. If a fault Filament Limit Set value will be displayed in amps on the occurs the beam controller will revert to the POWER left front panel meter. When in the active BEAM ON DOWN mode. This is indicated by the BEAM ON and the condition this meter displays the operational filament BEAM OFF indicator lamps both not being illuminated. current value. The applicable fault indicator will be illuminated on the INTERNAL FAULT PROTECTION: The beam controller front panel requiring the user to clear (depress the continually monitors internal circuits critical to its BEAM OFF switch, or cycle the AC line power) before the operation. If one of these circuits malfunctions, the fault beam can be re‐enabled. detection circuit turns off the emission (beam) current and reverts the unit to the POWER DOWN mode, where neither the BEAM ON nor the BEAM OFF indicator lamps will be illuminated. The applicable fault indicator will be illuminated on the fault diagnostic panel, requiring the user to clear (depress the BEAM OFF switch, or cycle the AC line power) before the emission ... -
Page 36: Options
RMT CNTRL: Indicates that the programming of the unit Spellman immediately if damage is evident. Do not is being accomplished by either the Ethernet or RS‐232 destroy or discard any of the packing material used in a digital interface. This feature is selectable via the rear damaged shipment. After unpacking, inspect the panel, panel DIP switch, switch position 1. See the section on chassis, gun output box and cables for visible damage. Configuration for more details. Standard Spellman EVA beam controllers are covered by a warranty. Custom and special order models (with a FIL LIMIT: Indicates that the beam controller is limiting the filament current at the programmed Filament unique 4 digit X suffix in the model number) are also Current Limit level. covered by a warranty. Check the specific warranty terms by referring to the Warranty document contained OVER mA: Indicates the emission (beam) current has in this operator’s manual. been actively limited to 105% of maximum rated current (as per an internal printed circuit board potentiometer Input Requirements setting). Each beam controller chassis operates from 180‐264Vac, FAULT 1: Not allocated. 50/60Hz, single phase, 7.5 amps maximum (10 amps RGLT ERR: Indicates a failure in the beam controllers maximum for HPF Option ‐ 50 amp units). regulation circuitry. This fault usually occurs when there Beam controller chassis have front panel holes for is a lack of output power to maintain proper output standard EIA rack mounting. The rack must allow rear regulation. Possible causes could be due to low AC input mechanical installation access for cable connections. voltage (below low line parameters) or a malfunction of Units are fully enclosed and are suitable for bench or the power supply preventing it from generating the tabletop operation. It is strongly recommended to voltage/current being requested. support the chassis by guides or shelves. ... - Page 37 Switch Name Programming Feature Switch Position ON Switch Position OFF 1 RMT CNTRL Enables remote control via the provided ON(down) for RMT OFF(up) for local Ethernet/RS‐232 interfaces. CNTRL control and remote analog control 2 GUN2 Configures the Beam Controller chassis as ON(down) for GUN2 OFF(up) for Single Gun GUN2. Lights up the front panel GUN2 and for GUN1 and lamp. (See Note 1) GUN3 in Multi‐Gun configuration 3 GUN3 Configures the Beam Controller chassis as ON(down) for GUN3 OFF(up) for Single Gun GUN3. Lights up the front panel GUN3 and for GUN1 and lamp. (See Note 1) GUN2 in Multi‐Gun configuration 4 SINGLE GUN ...
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Page 38: Eva Beam Controller Operating Instructions
SOURCE AND TURNED OFF FOR A MINIMUM OF 5 EVA BEAM CONTROLLER OPERATING MINUTES BEFORE PROCEEDING! INSTRUCTIONS D) Plug the captive (yet field replaceable) high voltage output cable attached to the gun output box 6.10 Operation into the rear panel high voltage connector of the EVA WARNING high voltage power supply and secure properly. E) Connect the captive two conductor filament THIS EQUIPMENT’S OUTPUT IS REFRENCED TO output cable that exits the gun output box to the DANGEROUS VOLTAGES THAT MAY BE FATAL. filament of the electron gun. Either wire can be PROPER GROUNDING OF ALL HIGH VOLTAGE connected to which ever terminal of the filament EQUIPMENT IS ESSENTIAL. desired as there is no polarity orientation. Make certain WARNING the connections are secure due to the high current output (35 amp standard or optional 50 amp) of the BEFORE CONNECTING THE POWER SUPPLY TO THE filament power supply. AC LINE, FOLLOW THIS STEP‐BY‐STEP PROCEDURE. F) For initial turn‐on, rotate the front panel DO NOT CONNECT THE POWER SUPPLY TO THE AC Emission (beam) Current control potentiometer fully LINE UNTIL STEP ‘G’ IS REACHED. FAILURE TO counter‐clockwise to the zero position. Rotate the front FOLLOW THESE PROCEDURES MAY VOID THE panel Filament Limit Set control potentiometer fully WARRANTY. counter‐clockwise to the zero position. G) The input power cable may now be connected ... - Page 39 the desired level of the Emission (beam) Current and lamp will flash. The applicable fault indicator will be Filament Limit Set continue holding in the BEAM OFF illuminated on the front panel requiring the user to switch and rotate the applicable control dial while clear (depress the BEAM OFF switch, or cycle the AC line noting its corresponding meter reading. Release the power). The EVA high voltage power supply fault is BEAM OFF switch. cleared by cycling the CONTROL POWER ON switch, cycling the AC line power or by toggling the Reset/HV NOTE: No actual electron beam is being produced at Inhibit (50 pin connector pin 2) signal line. this time, but the filament is operating at the preheat WARNING current levels. M) Depress the HV ON switch on the EVA high AFTER TURN OFF, DO NOT HANDLE THE OUTPUT voltage power supply. The red light inside the switch UNTIL THE CAPACITANCE HAS BEEN DISCHARGED! should illuminate and the output will slow start up to LOAD CAPACITANCE MAY BE DISCHARGED BY the preset level output voltage under a no load current SHORTING TO GROUND. condition. WARNING NOTE: The EVA series is equipped with a slow start circuit that ramps the output up to its maximum setting DANGER ‐ THE VOLTMETER ON THE EVA HIGH in approximately 6 seconds after the HV ON switch is VOLTAGE POWER SUPPLY FRONT PANEL DOES NOT depressed. DISPLAY THE OUTPUT VOLTAGE WHEN THE POWER IS TURNED OFF, EVEN IF A CHARGE STILL N) Depress the BEAM ON switch on the beam EXISTS ON THE OUTPUT. controller. The red light inside the switch should illuminate and the emission (beam) current will slow CAUTION ...
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Page 40: 6.11 Standard Features
Figure 6.2 Typical Operating Setup 6.11 Standard Features LOCAL CONTROL ‐ Local programming (front A general note on remote interface circuitry and remote panel/internal control) will enable the front panel signal grounding: potentiometers for Emission (beam) Current and Filament Limit Set, and an internal factory preset When usage applications dictate, electrical isolation potentiometer to set the Filament PreHeat. This is may be required when interfacing with beam controller accomplished by setting the rear panel DIP switch, in question. For power control signals such as switch 1 position to the OFF (up) position. A jumper EXTERNAL INTERLOCK, BEAM OFF and BEAM ON, should be placed between the rear panel 25 pin female isolated relay contacts should be used. For status signals D connector pins 8/9, pins 10/11 and pins 12/13 to and control signals such as BEAM ON, BEAM OFF, etc. enable local Filament Limit Set, Beam Current Program opto‐isolation should be used. When usage applications and Filament Preheat control respectively. dictate, analog programming and monitoring signals may require isolation via analog isolation amplifiers. All REMOTE CONTROL ‐ For remote programming a positive interface cables should be properly shielded. All power polarity, ground referenced 0‐10Vdc source is applied to supply signals should be referenced to the power the rear panel 25 pin female D connector pin 8, pin 10 supplies signal ground on the rear panel interface and pin 12 for Filament Limit Set, Beam Current connecter. Program and Filament Preheat control respectively. Any jumpers for local control should be removed and LOCAL/REMOTE PROGRAMMING: Allows adjustment of the programming signals should be referenced to pin 1, the Emission (beam) Current, Filament Limit Set and signal ground. See Figure 6.3 for more details. Filament Preheat via the front panel/internal controls ... -
Page 41: Figure 6.3 Remote Programming Via Voltage Sources
An alternate method of controlling the output remotely interface. BEAM OFF and BEAM ON are controlled by is by using external resistance such as a potentiometer momentary normally closed; normally open contacts, or a resistor network. See Figure 6.4 for more details. respectively between pins 14 and 15, and pins 15 and 16. See Figure 6.6 for more details. REMOTE MONITORS: Test points (monitors) are made available on the rear panel interface connecter for EXTERNAL INTERLOCK: The External Interlock monitoring the Emission (beam) Current and Filament connections are provided on the rear panel interface Current; pin 6 and pin 5 respectively. The test points are connecter, pin 3 and pin 4. They are intended for use in always positive, scaling is such that 0‐10Vdc the connection to a customer provided and corresponds to 0‐100% rated output. Test points have implemented external safety switch. The unit will not an output impedance of 4.99k ohms, ±1%. See Figure operate unless the external interlock circuit is closed. If 6.5 for more information. the interlock is not being used (use is highly recommended), a jumper must be installed. During LOCAL/REMOTE: BEAM ON/BEAM OFF: Allows for operation, opening the external interlock will cause the command of BEAM ON and BEAM OFF by either the unit to revert to the BEAM OFF mode. Subsequent front panel controls or external signals via the rear closing of the interlock circuit will NOT return the unit to panel 25 pin external interface connector. BEAM ON mode; this must be accomplished by LOCAL CONTROL ‐ For local front panel command of the depressing the BEAM ON switch (be it local or remote). BEAM OFF functionality a maintained connection See Figure 6.7 for more details. between pin 14 and pin 15 is required. REMOTE BEAM ON/OFF INDICATORS: Allows for the REMOTE CONTROL – Remote control of BEAM ON and remote monitoring of BEAM ON/OFF. See Figure 6.8 BEAM OFF can be accomplished via the rear panel ... -
Page 42: Figure 6.4 Remote Programming Via Resistance
Figure 6.4 Remote Programming via Resistance Figure 6.5 Remote Monitor Designations EVA Manual 28 118144‐001 REV. A ... -
Page 43: Figure 6.6 Remote Beam On / Beam Off
Figure 6.6 Remote BEAM ON / BEAM OFF Figure 6.7 External Interlock Interface Circuit EVA Manual 29 118144‐001 REV. A ... -
Page 44: Figure 6.8 Remote Beam On /Beam Off Indicator
Figure 6.8 Remote BEAM ON /BEAM OFF Indicator EVA Manual 30 118144‐001 REV. A ... - Page 45 = Denotes jumper connection for simplified front panel operation Table 6.2 Beam Controller 25 Pin D Remote Interface Connector EVA Manual 31 118144‐001 REV. A ...
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Page 46: Maintenance
Chapter 7 MAINTENANCE equipment, including an oscilloscope, a high impedance This section describes periodic servicing and voltmeter, and a high voltage divider (such as the performance testing procedures. Spellman HVD‐100) is needed for performance tests. All WARNING test components must be rated for applicable operating voltage. THIS POWER SUPPLY GENERATES VOLTAGES THAT High Voltage Dividers ARE DANGEROUS AND MAY BE FATAL. OBSERVE EXTREME CAUTION WHEN WORKING WITH HIGH VOLTAGE. Periodic Servicing Approximately once a year (more often in high dust environments), disconnect the power to the unit and remove the top cover. Use compressed air to blow dust out of the inside of the unit. Avoid touching or handling the high voltage assembly. Be sure that the fan is not obstructed and spins freely. The fan has sealed bearings and does not need lubrication. Be sure to replace the cover before operating for proper cooling. Turn the chassis over and remove the bottom cover. Use compressed air to blow dust out. NOTE: On 10kV and below, an air insulated high voltage section is used. Avoid touching or handling the high voltage assembly. Be sure to replace the bottom cover before operating High voltage dividers for precise measurements of the unit. output voltage with accuracy up to 0.1% are available Performance Test from Spellman. The HVD‐100 is used for voltages up to 100kV, the HVD‐200 measures up to 200kV and the WARNING HVD‐400 measures up to 400kV. The Spellman HVD divider is designed for use with differential voltmeters HIGH VOLTAGE IS DANGEROUS. ONLY QUALIFIED ... -
Page 47: Replacement Parts
Chapter 8 REPLACEMENT PARTS When requesting engineering or applications Replacement Parts information, please state the model and serial number Contact the Spellman Customer Service Department for of the power supply. If specific components or circuit parts lists for specific models. sections are involved in the inquiry, it is helpful to indicate the component symbol number(s) shown on Spellman provides parts and subassemblies for its high the applicable schematic diagram. voltage power supplies but recommends that only qualified personnel perform repairs. High voltage is When ordering spare parts, please specify the part’s dangerous; even minor mistakes in repairs can have description, the part’s reference designation or part serious consequences. number, and the model and serial number of the unit. Digital photographs can be very helpful in identify When requesting parts, please provide the complete components and/or assemblies. model number and serial number of the power supply in question. Correspondence and Ordering Spare Parts Each Spellman power supply has an identification label on the rear of the chassis that bears its model and serial number. EVA Manual 33 118144‐001 REV. A ... -
Page 48: Factory Service
Chapter 9 FACTORY SERVICE Number. A more detailed estimate will be made when Warranty Repairs the power supply is received at the Spellman Repair Center. In the event that repair work is extensive, During the Warranty period, Spellman will repair all Spellman will call to seek additional authorization from units free of charge. The Warranty is void if the unit is your company before completing the repairs. worked on by other than Spellman personnel. See the Warranty in the rear of this manual for more information. Follow the return procedures described in Ordering Options and Modifications Section 8.2. The customer shall pay for shipping to and from Spellman. Many of the options listed in Chapter 5 can be retrofitted into Spellman power supplies by our factory. For prices and arrangements, contact our Sales Factory Service Procedures Department. Spellman has a well‐equipped factory repair department. If a unit is returned to the factory for Shipping Instructions calibration or repair, a detailed description of the specific problem should be attached. All power supplies returned to Spellman must be sent shipping prepaid. Pack the units carefully and securely For all units returned for repair, please obtain an in a suitable container, preferably in the original authorization to ship from the Customer Service container, if available. The power supply should be Department, either by phone or mail prior to shipping. surrounded by at least four inches of shock absorbing When you call, please state the model and serial material. Please return all associated materials, i.e. high numbers, which are on the plate on the rear of the voltage output cables, interconnection cables, etc., so power supply, and the purchase order number for the ... - Page 49 The buyer’s sole remedy for a claimed breach of this warranty, and Spellman’s sole liability is limited, at Spellman’s discretion, to a refund of the purchase price or the repair or replacement of the power supply at Spellman’s cost. The buyer will be responsible for shipping charges to and from Spellman’s plant. The buyer will not be entitled to make claim for, or recover, any anticipatory profits, or incidental, special or consequential damages resulting from, or in any way relating to, an alleged breach of this warranty.
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