Spellman SL2KW SERIES Instruction Manual

R

Instruction Manual

SL2KW SERIES

MODEL :
SERIAL# :
DATE :

SPELLMAN
HIGH VOLTAGE ELECTRONICS
CORPORATION

One Commerce Park
Valhalla, New York, 10595

[phone]* FAX: [phone]*
E-mail: [e-mail]
Website: www.spellmanhv.com

High Voltage Power Supply

SL2KW MANUAL 118087-001 Rev A

IMPORTANT SAFETY PRECAUTIONS

SAFETY

THIS POWER SUPPLY GENERATES VOLTAGES THAT ARE DANGEROUS AND MAY BE FATAL.

OBSERVE EXTREME CAUTION WHEN WORKING WITH THIS EQUIPMENT.

High voltage power supplies must always be grounded.

Do not touch connections unless the equipment is off and the

Capacitance of both the load and power supply is discharged.

Allow five minutes for discharge of internal capacitance of the power supply.

Do not ground yourself or work under wet or damp conditions.

SERVICING SAFETY

.

Maintenance may require removing the instrument cover with the power on.

Servicing should be done by qualified personnel aware of the electrical hazards.

WARNING note in the text call attention to hazards in operation of these units

that could lead to possible injury or death.

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

been prepared for the express purpose of assisting operating and maintenance personnel in the efficient use of the

model described herein, and publication of this information does not convey any right to reproduce it or to use it for

any purpose other than in connection with installation, operation, and maintenance of the equipment described.

118004-001 REV. B

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. 5 Minuten, um sich zu entladen.

Erden Sie sich nicht, und arbeiten Sie nicht in feuchter oder nasser Umgebung.

SERVICESICHERHEIT

Notwendige Reparaturen können es erforderlich machen, den Gehäusedeckel während des Betriebes zu

entfernen.

Reparaturen dürfen nur von qualifiziertem, eingewiesenem Personal ausgeführt werden.

“WARNING” im folgenden Text weist auf gefährliche Operationen hin, die zu Verletzungen oder zum Tod

führen können.

“CAUTION” im folgenden Text weist auf Prozeduren hin, die genauestens befolgt werden müssen, um

eventuelle Beschädigungen des Gerätes zu vermeiden.

118004-001 REV. B

PRECAUTIONS IMPORTANTES POUR VOTRE SECURITE

CONSIGNES DE SÉCURITÉ

CETTE ALIMENTATION GÉNÈRE DES TENSIONS QUI SONT DANGEUREUSES ET PEUVENT ÊTRE FATALES.

OYEZ EXTRÊMENT VIGILANTS LORSQUE VOUS UTILISEZ CET ÉQUIPEMENT.

S

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.

Prévoyez 5 minutes pour la décharge de la capacité interne de l’alimentation.

Ne vous mettez pas à la masse, ou ne travaillez pas sous conditions mouillées ou humides.

CONSIGNES DE SÉCURITÉ EN CAS DE REPARATION

La maintenance peut nécessiter l’enlèvement du couvercle lorsque l’alimentation est encore allumée.

Les réparations doivent être effectuées par une personne qualifiée et connaissant les risques électriques.

Dans le manuel, les notes marquées « WARNING » attire l’attention sur les risques lors de la manipulation de ces

équipements, qui peuvent entrainer de possibles blessures voire la mort.

Dans le manuel, les notes marquées « CAUTION » indiquent les procédures qui doivent être suivies afin d’éviter

d’éventuels dommages sur l’équipement.

118004-001 REV. B

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.

Attendere cinque minuti per permettere la scarica della capacità interna dell’alimentatore

ad alta tensione.

Non mettere a terra il proprio corpo oppure operare in ambienti bagnati o saturi d’umidità.

SICUREZZA NELLA MANUTENZIONE.

Manutenzione potrebbe essere richiesta, rimuovendo la copertura con apparecchio

acceso.

La manutenzione deve essere svolta da personale qualificato, coscio dei rischi elettrici.

Attenzione alle AVVERTENZE contenute nel manuale, che richiamano all’attenzione ai

rischi quando si opera con tali unità e che potrebbero causare possibili ferite o morte.

Le note di CAUTELA contenute nel manuale, indicano le procedure da seguire per evitare

possibili danni all’apparecchio.

118004-001 REV. B

Table of Contents

1. INTRODUCTION

1.1 Description of the SL2KW Series........................................................................1

1.2 Standard Features.................................................................................................2

1.2.1 Remote Operating Features ..................................................................2

1.2.2 System Status and Fault Diagnostic Display........................................2

1.3 Options.................................................................................................................3

1.4 Interpreting the Model Number...........................................................................4

2. INSPECTION & INSTALLATION

2.1 Initial Inspection..................................................................................................5

2.2 Mechanical Installation........................................................................................5

3. OPERATING INSTRUCTIONS

3.1 Operation .............................................................................................................7

3.2 Standard Features.................................................................................................8

PAGE

4. PRINCIPLES OF OPERATION

4.1 Chassis .................................................................................................................17

4.2 Line Rectification and Filtering...........................................................................17

4.3 Inverter.................................................................................................................18

4.4 High Voltage Transformer...................................................................................18

4.5 High Voltage Assembly.......................................................................................18

4.6 Control/Power PWB ............................................................................................19

4.7 Front Panel Assembly..........................................................................................19

4.8 Options.................................................................................................................19

5. OPTIONS

5.1 Adjustable Overload Trip ....................................................................................20

5.2 Adjustable Power Trip.........................................................................................20

5.3 Arc Sense.............................................................................................................20

5.4 Arc Trip................................................................................................................20

5.5 Bipolar Master/Slave ...........................................................................................20

5.6 Current Mode Select............................................................................................20

5.7 Constant Power Control.......................................................................................20

5.8 Digital Panel Meter, 4.5 Digits............................................................................20

SL2KW SERIES MANUAL I 118088-001 REV C

5.9 External Fault Relay ............................................................................................21

5.10 Fine Control Voltage ...........................................................................................21

5.11. Instant On.............................................................................................................21

5.12 Lead Length.........................................................................................................21

5.13 No Arc Detect......................................................................................................21

5.14 No Slow Start.......................................................................................................21

5.15 Positive/Negative.................................................................................................21

5.16 Remote Fault Reset..............................................................................................21

5.17 Remote Over Voltage ..........................................................................................22

5.18 Slides....................................................................................................................22

5.19 Slow Start.............................................................................................................22

5.20 Custom Design Models........................................................................................22

6. MAINTENANCE

6.1 Periodic Servicing................................................................................................24

6.2 Performance Test.................................................................................................24

6.3 High Voltage Dividers.........................................................................................24

7. REPLACEMENT PARTS

7.1 Replacement Parts................................................................................................25

7.2 Correspondence and Ordering Spare Parts..........................................................25

8. FACTORY SERVICE

8.1 Warranty Repairs.................................................................................................26

8.2 Factory Service Procedures .................................................................................26

8.3 Ordering Options and Modifications...................................................................26

8.4 Shipping Instructions...........................................................................................26

SL2KW SERIES MANUAL II 118088-001 REV C

LIST OF FIGURES

Figure 2.1 SL Series Dimensions.................................................................................6

Figure 3.1 SL Series Typical Operating Set Up...........................................................10

Figure 3.2A Wiring Diagram for Remote Programming via Voltage Source ................12

Figure 3.2B Wiring Diagram for Remote Programming via External Resistance..........12

Figure 3.3 Remote Monitor Test Point Designations...................................................13

Figure 3.4 Remote Control of High Voltage On and Off ............................................13

Figure 3.5 External Inhibit Interface Circuit................................................................14

Figure 3.6 External Interlock Interface Circuit............................................................14

Figure 3.7 Remote High Voltage On and Remote High Voltage off Indicator Circuit.... 15

Figure 3.8 Remote Indicators Interface............................................................................ 16

Figure 5.1 Polarity Reversal Procedures, 1kV to 8kV ..................................................... 22

Figure 5.2 Polarity Reversal Procedures 10kV to 50kV .................................................. 22

Figure 5.3 Instant On Option............................................................................................23

Figure 5.4 Bipolar Master/Slave Option......................................................................23

LIST OF TABLES

Table 1.1 SL2KW Options..........................................................................................3

Table 3.1 Rear Panel Interface 25 pin Mini D............................................................11

Table 4.1 List of Main Assemblies.............................................................................18

APPENDIX

A. Specification Controls (Custom Models Only)

SL2KW SERIES MA NUAL III 118088-001 REV C

Chapter 1

INTRODUCTION

1.1 Description Of The SL2KW
Series

he SL2KW Series of high voltage power supplies
provides very well regulated, low ripple high voltage

T

in a highly efficient, compact design. The
improvements in size and performance over traditionally
designed high voltage power supplies are due to the
resonant topology and unique control circuitry of the
SL2KW design. A proprietary control system maintains
high frequency over the operating output range. The
combination of proprietary control system and proprietary
protection circuitry enables the supplies to operate under
arcing and extreme transient conditions without damage
or interruptions.

The DC output voltage and current are continuously
adjustable from zero to the maximum rating via two front
panel ten-turn locking potentiometers.

Custom designed units to meet special needs are also
available.

SL2KW SERIES MANUAL 1 118088-001 REV C

1.2 Standard Features

The SL2KW Series incorporates several standard features
designed to optimize user satisfaction and safety.

 SLOW START: This feature provides a gradual

increase in high voltage until the preset operating

point is reached. The slow start time is factory set

for 6 seconds. Other slow start times are available as

an option.
 ARC DETECT / ARC QUENCH / ARC COUNT:

These features allow the user to tailor the power

supply to meet specific needs in dynamic load

applications. If an arc occurs, the output is inhibited

for approximately one second, then the output is

ramped up to the preset level with the slow-start

circuitry. See Chapter 3 for operating details and

information for user customization of these features.
 INTERNAL FAULT PROTECTION: The SL

Series continually monitors internal circuits critical to

the proper operation of the power supply. In the

event that one of these circuits does not function

correctly, the fault detection circuit latches the

appropriate fault on the front panel display and turns

off the output and reverts the unit to the POWER

DOWN mode.
 INDICATOR LAMPS: LINE POWER, HIGH

VOLTAGE OFF AND HIGH VOLTAGE ON

indicators.
 OUTPUT CABLE: All models are provided with a

ten foot shielded high voltage output cable. The

cables are designed with a plug arrangement so that

they can be easily removed from the mating

receptacle located on the rear of the chassis.

1.2.1 Remote Operating Features

 EXTERNAL INHIBIT: A control signal that will

inhibit the high voltage output is provided on the
external interface. A logic low, ground, will inhibit
the high voltage output an d a logic high, open, will
restore the high voltage output to the preset level.

NOTE: The External Inhibit circuit should NOT be used

for protection against injury or for safety interlock.
See External Interlock for this type of safety control.

 EXTERNAL INTERLOCK: Interlock connections

are provided on the external interface on the rear of
the chassis for connection to a safety switch. The
unit will not operate unless the interlock circuit is
closed. During high voltage operation, opening the
interlock circuit will cause the High Voltage to shut
off. This circuit should be used for safety interlock
circuits.

1.2.2 System Status and Fault
Diagnostic Display

“Dead Front” type indictors are provided to give the user
complete indication of system operation and fault
conditions. If a fault occurs, the power supply will revert
to the POWER DOWN mode. This is indicated by both
the HV ON and HV OFF lamps turning off. To reset,
depress the HV OFF switch.

 VOLTAGE (CONTROL): Indicates the output

voltage regulator circuit is maintaining voltage
regulation.

 CURRENT (CONTROL): Indicates the output

current regulator circuit is maintaining current
regulation.

 HV INHIBIT: Indicates that the high voltage

supply is being inhibited by either the EXTERNAL
INHIBIT or internal protection circuitry.

 REMOTE PROGRAMMING: Allows remote

adjustment of the output voltage and current via an
external voltage source.

 REMOTE MONITOR: Allows remote monitoring

of the output voltage and current.

 REMOTE HIGH VOLTAGE CONTROL:

Allows remote control of HIGH VOLTAGE ON and
HIGH VOLTAGE OFF. Signals are also provided
for remote indication of HV ON or HV OFF status.

SL2KW SERIES MANUAL 2 118088-001 REV C

 INTLK CLSD: Indicates the EXTERNAL

INTERLOCK connections are in the closed position.
This also indicates closure of internal power supply
interlocks.

 INTKL OPEN: Indicates the EXTERNAL

INTERLOCK connections are in the open position.
This also indicates opening of internal power supply
interlocks.

 OVERVOLT: Indicates the overvoltage protection

circuitry has caused the power supply to turn off.
Overvoltage protection is internally set to 110% of
the rated output voltage.

 OVERCURR: Indicates the output current has

exceeded the programmed current trip level when the
AOL (Adjustable Overload Trip) or the OL
(Overload Trip) options are installed.

 ARC: Indicates that an arc has occurred within the

previous one second or that the ARC COUNT/TRIP
has shutdown the power supply.

 RGLT ERR: Indicates a failure in the voltage,

current or power regulation circuitry. This fault
usually occurs when there is a lack of output power
to maintain regulation.

The options available are listed in Table 1.1. See Section
5 for more information on these options along with
operating and set-up instructions. With few exceptions,
these options and modifications can be retrofitted to your
power supply at the factory in a short time. For price and
retrofit arrangements, contact the Spellman Sales
Department.

1.3 Options

AOL Adjustable Overload Trip (0-103%)

APT Adjustable Power Trip

ARC Arc Sense

AT Arc Trip

BPM/BPS Bipolar Master/Slave

CMS Current Mode Select

CPC Constant Power Control

DPM4 Digital Panel Meter

EFR External Fault Relay

FCV Fine Control Voltage

IO Instant On

SL Slides

LL(X) Lead Length

NAD No Arc Detect

NSS No Slow Start

PN Positive/Negative

RFR Remote Fault Reset

ROV Remote Over Voltage

SL Slides

SS(X) Slow Start (X)

Table 1.1 SL2KW Options

SL2KW SERIES MANUAL 3 118088-001 REV C