Spellman MONOBLOCK Series, XRB80HR Instruction Manual

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Instruction Manual

MONOBLOCK® SERIES

XRB80HR

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

High Voltage X-Ray Generator

MONOBLOCK® MANUAL 118168-001 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.

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.

118091-001 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.

118091-001 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.

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.

118091-001 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.

118091-001 REV. B

XRB80PN100HR MONOBLOCK® MANUAL 1 118169-001 REV C

PAGE

1. INTRODUCTION

1.1 Description of XRB80HR MONOBLOCK Series ...........................................2

1.2 Operating Features ...............................................................................................3

1.3 Status and Fault Diagnostic Display ....................................................................4

1.4 Interpreting the Model Number ...........................................................................5

2. INSPECTION

2.1 Initial Inspection ..................................................................................................6

2.2 Installation ............................................................................................................6

3. OPERATING INSTRUCTIONS

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

3.2 Signal and Power Connections ............................................................................8

3.3 Local Mode (Analog Monitors) ...........................................................................8

3.4 Local Mode (Analog Enable) ...............................................................................8

3.5 Remote Mode (Digital Control)… .......................................................................8

3.6 X-ray Tube Seasoning Process .............................................................................8

4. DIAGNOSTICS

4.1 Chassis .................................................................................................................11

5. FACTORY SERVICE

5.1 Warranty Repairs .................................................................................................12

5.2 Factory Service Procedures ..................................................................................12

5.3 Ordering Options and Modifications… ...............................................................12

5.4 Shipping Instructions ...........................................................................................12

LIST OF TABLES

Table 1 Diagnostic Descriptions .......................................................................................11

Table 2 Tube Seasoning Procedure ..................................................................................13

XRB80PN100HR MONOBLOCK® MANUAL 2 118169-001 REV C

Chapter 1

INTRODUCTION

1.1 Description of the XRB80HR MONOBLOCK Series

he XRB80HR (high reliability) Monoblock® X-ray source is designed for OEM applications powering its

internal Bipolar X-ray tube up to 80kV at 100W.It is a complete integrated system consisting of a high voltage power supply (HVPS), filament supply, X-ray tube and oil encapsulant which provides the required high voltage insulation in one compact enclosure . The combination of proprietary control system and protection circuitry. Additional advantages are the elimination of high voltage cables and low leakage X-ray radiation.

Power factor corrected input regulator is utilized to improve overall reduction in harmonic emissions and EMI. The output provides a regulated +390VDC to downstream switching circuitry enabling optimal performance and efficiency.

The XRB80HR MONOBLOCK Series incorporates remote programming, monitoring, and fault indicators including interlock.

The X-ray source is a sealed unit containing a HVPS and an X-ray tube. The insulating oil provides electrical insulation for the high voltage sections of the power supply and the X-ray tube in a sealed tank. The oil also functions as a coolant to carry heat away from the tube. Convection cooling augmented by customer provided external fan is required. A bellows in the tank of the X-ray source compensates for the expansion of the oil as the oil temperature varies with operating conditions thereby eliminating the need for bulky overflow tank.

The XRB80HR is available either with fan shaped (standard) or (optional) cone shaped beam geometries. Proprietary emission control circuitry provides excellent regulation of X-ray tube current, along with outstanding stability performance. The XRB80HR is designed for long field life.

XRB80PN100HR MONOBLOCK® MANUAL 3 118169-001 REV C

1.2 Operating Features

The XRB80HR MONOBLOCK Series incorporates several standard features designed to optimize user satisfaction and safety.

 INTERNAL FAULT PROTECTION: The

XRB80HR MONOBLOCK 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 cover display and turns off the output.  LED FAULT/STATUS INDICATORS:

Indicators are located on the cover of

Inverter/Control Assembly and are provided to give

the user complete indication of system operation and

fault conditions.

POWER OVERVOLTAGE (OV)

ARC FLT UNDERVOLTAGE (UV)

OVERTEMP (OT) OVER CURRENT (OC)

UNDER CURRENT (UC) X-RAY ON

OVER POWER (OP)

 WATCHDOG OPERATION: The HVPS employs

an internal watchdog timer to discontinue X-ray

operation in instances where the host computer has

lost communication and control of the HVPS system

for a period greater than ten second. This feature is

enabled via RS-232 host command.  LOCAL MONITORS: provides Local analog

monitors for the output voltage and current via analog

voltage outputs on J2 on the front cover.  REMOTE PROGRAMMING: Allows remote

adjustment of the output voltage and current via RS-

232 digital interface port at J3 on the front cover. All

program values default to zero upon power up.  REMOTE MONITORS: Provides remote monitors

of the output voltage, output current and Filament

current via RS-232 digital interface port at J3 on the

front cover.  X-RAY ENABLE CONTROL: Provides control of

X-ray ON and X-ray OFF via RS-232 communication

or analog enable via J2-15 (connect to J2-13).  EXTERNAL INTERLOCK: The X-ray cannot be

enabled unless the external interlock is closed by

connecting J2-11 to J2-12. During high voltage

operation, opening the interlock circuit will cause the

High Voltage to be disabled. Interlock status indication via RS-232 interface at J3.

IMPORTANT

This control signal is not a safety

interlock and should not be used for

protection from X-ray generation for

safety purposes.

 HV ON LAMP RELAY: When X-ray ON command

is enabled a NO and a NC relay contact closure will occur at connector J2. Refer to pin assignments datasheet SHV#128118-001 and specification for contact ratings.

 OIL TEMPERATURE MONITOR: Provides

remote oil temperature monitor via RS-232 digital interface port at J3 on front cover.

 PS Fault Indication: PS Faults an open collector

output on J2-1, indicates that a faults has occurred. High = no faults.

 X-ray On Indication: X-ray On Signal is an open

collector output on J2-14, indicates that a faults has occurred. High = X-ray off

XRB80PN100HR MONOBLOCK® MANUAL 4 118169-001 REV C

1.3 System Status and Fault

Diagnostic Display

If a fault occurs, the power supply will revert to the POWER DOWN mode indicated by extinguishing of Xray ON led and via RS-232 as HV OFF. To reset a fault, a clear command or X-ray ON command must be sent via RS-232.

 EXTERNAL INTERLOCK FAULT: Indicates that

the high voltage supply is inhibited by external

interlock protection circuitry solely via RS-232

communication as (ARG 8) Open Interlock.  OVERVOLTAGE: Indicates the over voltage

protection circuitry has caused the high voltage to

turn off. Over voltage protection is internally set to

88kv. This fault is indicated by OV led status on the

front cover and via RS-232 as (ARG 3), Over

Voltage.  OVER CURRENT FAULT: Indicates the output

current has exceeded 2.20ma or if the allowable

percentage of error between actual and programmed

emission currents is exceeded resulting in the HV to

be turned off. This fault is indicated by illumination

of OC led status on the front cover and via RS-232 as

(ARG 5) Over Current.  ARC FAULT: On the standard unit indicates that an

arc has occurred. This fault is indicated by

momentary (~ 1 sec) illumination of ARC FLT led

status on front cover and via RS-232 as (ARG 1) Arc.

Occurrences of four arcs with in a period of ten

seconds will shutdown the high voltage. This fault is

indicated by illumination of ARC FLT led status on

front cover and via RS-232 as (ARG 1) Arc.  UNDER VOLTAGE: Indicates a failure in the

voltage regulation circuitry. This fault occurs when

there is a lack of output power to maintain regulation

and will result in shutdown of the HV. This fault is

indicated by illumination of UV led status on the

front cover and via RS-232 as (ARG 4) Under

Voltage.  UNDER CURRENT: Indicates failure in the current

regulation circuitry. This fault occurs when the

allowable percentage of error between actual and

programmed emission currents is exceeded, due to

the actual emission current being less than the

programmed level. This fault does not shutdown the

HV, it is indicated by illumination of UC led status on

front cover and via RS-232 as (ARG 6) Under

Current.

 OVER TEMPERATURE: Indicates that the internal

oil temperature has exceeded 66 deg C. This could be either caused by a failure in the customer supplied cooling fan that would cause the oil temperature to exceed 65 deg C or the ambient temperature has exceeded 40 deg C, resulting in shutdown of HV. This fault is indicated by OT led status on the front cover and via RS-232 as (ARG 6) Over Temperature.

 POWER ON LED: When input power is applied to

the unit it is indicated by the POWER led being illuminated.

 X-ray On LED: when the high voltage status is

“On” state it is indicated by X-RAY ON led status on the front cover.

 WATCHDOG TIMER: Indicates the host computer

has lost communication and with the HVPS system for a period greater than ten second. This feature is enabled via RS-232 host command. This fault is indicated via RS-232 as (ARG 5) Watchdog Timeout. See digital manual for details.

 OVER POWER FAULT: Indicates the output

power has exceeded 107watts. This fault is indicated by the illumination of both the UC and OC led status on the front cover an, OP fault via RS-232 as (ARG

9) Over Power.

XRB80PN100HR MONOBLOCK® MANUAL 5 118169-001 REV C

1.4 Interpreting the Model Number

The model number of the power supply describes its capabilities. After the series name is:

1. Maximum voltage (in kV).

2. Polarity of the unit: (PN) Bi Polar

3. The maximum output (in watts).

4. Options

5. Custom model number

XRB 80 PN 100 HR / XX / X (#)

XRB80PN100HR

Series Name

Maximum

Voltage

Bi Polar

Output

Polarity

Maximum

Power

Custom

“X”

Number

Options

See datasheet

XRB80PN100HR MONOBLOCK® MANUAL 6 118169-001 REV C

Chapter 2

INSPECTION & INSTALLATION

nitial inspection and preliminary checkout procedures are recommended. For safe operation, please follow the step-by-step procedures described in Chapter 3,

Operating Systems.

2.1 Initial Inspection

Inspect the package exterior for evidence of damage due to handling in transit. Notify the carrier and Spellman immediately if damage is evident. Do not destroy or remove any of the packing material used in a damaged shipment.

After unpacking, inspect the panel and chassis for visible damage.

Fill out and mail the Warranty Registration card accompanying the unit. Standard Spellman XRB80HR

MONOBLOCK Series high voltage power supplies and components are covered by warranty.

2.2 Installation

The unit can be mounted in any position. Four, .438” thru mounting holes are provided on the Tank flanges shown below. For Exit port collimation mounting six ¼ -20 UNC 2B holes .370” deep are provided.

The Control assemble has four, M4 threaded holes .7mm deep.

Do not block the vent holes in the top cover as indicated.

XRB80PN100HR MONOBLOCK® MANUAL 7 118169-001 REV C

XRB80PN100HR MONOBLOCK® MANUAL 8 118169-001 REV C

Chapter 3

OPERATING INSTRUCTIONS

3.1 Operation

THIS EQUIPMENT GENERATES DANGEROUS

VOLTAGES THAT MAY BE FATAL.

PROPER GROUNDING OF ALL HIGH VOLTAGE

EQUIPMENT IS ESSENTIAL.

WARNING X-RAY RADIATION EXPOSURE IS

HAZARDOUS

Failure to follow these procedures may void the warranty.

Check the input voltage rating on the nameplate of the supply and make certain that this is the rating of the available power source. Spellman XRB80HR MONOBLOCK XRB80PN100HR operates on 90264VAC, single phase 50 or 60Hz.

Bellow Vent hole:

Do not block or insert anything into the vent hole located on top cover as shown. This hole provide venting for the internal bellows that is used to compensate for the

expansion of the oil as the oil temperature varies.

Do not block vent holes on the cover

Cooling:

A customer supplied 250 CFM fan should be used to maintain safe operating temperature for XRB80HR MONOBLOCK X-ray generator. The air flow should be direct at side wall (opposite the interface connector) and across both the top and the bottom of the tank as shown below. During operation the internal oil temperature should be below 55 deg C and should not exceed 65 deg C. See below Figure for fan location.

WARNING

XRB80PN100HR MONOBLOCK® MANUAL 9 118169-001 REV C

BEFORE CONNECTING THE POWER SUPPLY

TO THE AC LINE, FOLLOW THIS PROCEDURE.

1) PROPER GROUNDING TECHNIQUES: The Tank of the X-ray Generator must be grounded, by using the ground connected to the provided 10-32 threaded hole on the tank cover. The Controller of the X-ray Generator must be grounded, by using the ground connected to the provided ground stud located on the cover of the Control Assembly.

Note: For optimal EMC results the Tank and Controller should be mounted to the same ground plane, if not a ground wire (preferably a braided wire) should be connected between the tank and the controller.

2) Plug Controller interface cable into the Tank of the XRay Generator. Connect interface cable Ground shield wire to the Tank with provided 6-32 threaded hole.

3) ENSURE THAT THE EXIT PORT IS PROPERLY MATED TO COLLIMATOR OR SATISFACTORILY SHIELDED WITH LEAD PLUG TO LIMIT EXPOSURE TO LEAKAGE RADIATION.

X-ray Safety Procedures must be followed when testing this unit. The XRB80PN100HR is capable of producing Lethal Voltages and X-ray Radiation. Only proceed with operation of the HVPS after

a) consulting with the Manufacturer and

verification of X-ray setup for the proper precautions.

b) reading this entire document.

NEVER OPERATE THIS UNIT WITH AN OPEN

X-RAY EXIT PORT.

It is recommended not to allow leakage radiation exceeding 0.5mR/hr at 5cm from any surface of the XRB80HR MONOBLOCK.

3.2 Signal and Power Interface Connections

1) Connect Ground wire to the stud located on the cover of the Control Assembly marked Ground.

2) Connect digital signal interface RS-232 communication cable from the host computer to the J3 connector on Control Assembly.

3) Close external Interlock by connecting J2-11 to J2-12 through a dry contact. See Figure 3.1 for wiring diagram and specifications.

4) Connect 90 - 264VAC line to J1 use Phoenix contact connector block # 1805990(not provided) Pin 1= earth Pin 2 =Line and Pins 3= Neutral. Make sure AC line voltage is OFF when connecting to the unit.

5) Determine unit’s idle time and refer to Table 2 for seasoning procedure. If in doubt, use the longest seasoning schedule.

3.3 Analog monitors

1) Monitor kV output by measuring J2-8(reference to signal ground J2-10), 0-9.00v (0-80kV).

2) Monitor ma output by measuring J2-6 (reference to signal ground J2-10), 0-9.00V (0-2.00mA)

See Figure 3.3 for wiring diagram and specifications.

3.4 Local Mode (Analog enable)

1) In local mode, to enable X-ray On connect J2-13 to J215 through a dry contact. The external interlock must also be close for the X-ray to enable. This feature is disable after Digital enable command is sent.

See Figure 3.4 for wiring diagram and specifications.

3.5 Remote Mode (Digital control)

G.U.I and operation instruction

1) Install the G.U.I software to the host computer (See CD with GUI).

2) Start the G.U.I.

3) Read agreement then click AGREE.

4) Operate the unit using GUI. For instruction on GUI operation, see the “XRB80HR GUI INSTRUCTION” document provided on with the GUI on the CD.

3.6 X-ray Tube Seasoning Process

Caution: To prevent premature degradation of the X-ray tube, it is highly recommended to run the seasoning process if the unit has not been turned on for more than 3 days. See Table 2.

WARNING

XRB80PN100HR MONOBLOCK® MANUAL 10 118169-001 REV C

RELAY

Figure 3.1 Interlock Logic Control

____________________________________________________________________________________________

XRB80PN100HR MONOBLOCK® MANUAL 11 118169-001 REV C

Figure 3.3 Remote Monitoring

____________________________________________________________________________________________

Figure 3.4 Local Enable Logic Control

XRB80PN100HR MONOBLOCK® MANUAL 12 118169-001 REV C

Chapter 4

Diagnostics

Fault/Symptom

Possible Cause

OV led illuminated and Over voltage fault at RS-232 resulting in HV Status Off.

kV programming set greater than 80kV.

UV led illuminated and Under Voltage fault at RS-232 resulting in HV Status Off.

AC input voltage lower than minimum specified.

OC led illuminated and Over Current fault at RS-232 resulting in HV Status Off.

mA programming greater than

2.00mA.

UC led illuminated and Under current fault at RS-232 resulting in HV Status Off.

kV programming is less than 35kV or AC input voltage below spec.

OT led illuminated and Over temperature fault at RS-232 resulting in HV Status Off.

Internal oil temperature is above 65 deg C, could be caused by operation at ambient temperature greater than 40°C or failure of a customer supplied cooling fan.

ARC FLT led momentarily illuminated and a momentary Arc fault at RS-232 resulting in HV Status staying ON.

Occurrence of tube arc. Refer to tube re-seasoning procedure Table 2 and idle times.

ARC FLT led illuminated and Arc fault at RS-232 resulting in HV Status OFF

At least four arcs occurred in a ten second period causing shutdown. Clear fault and send X-ray command. Refer to tube re-seasoning procedure Table 2 and idle times. If problem continues contact Spellman service department.

Over Power

Kv and ma programming exceeded 107W.Reduce programming <100W.

Unit will not Enable

Interlock open and/or tank to controller interface cable unplugged.

TABLE 1

XRB80PN100HR MONOBLOCK® MANUAL 13 118169-001 REV C

Chapter 5

FACTORY SERVICE

5.1 Warranty Repairs

During the Warranty period, Spellman will repair all units free of charge. The Warranty is void if the unit is 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 Section 5.2. The customer shall pay for shipping to and from Spellman.

5.2 Factory Service Procedures

Spellman has a well-equipped factory repair department. If a unit is returned to the factory for calibration or repair, a detailed description of the specific problem should be attached.

For all units returned for repair, please obtain an authorization to ship from the Customer Service Department, either by phone or mail prior to shipping. When you call, please state the model and serial numbers, which are on the plate on the rear of the power supply, and the purchase order number for the repair. A Return Material Authorization Code Number (RMA Number) is needed for all returns. This RMA Number should be marked clearly on the outside of the shipping container. Packages received without an RMA Number will be returned to the customer. The Customer shall pay for shipping to and from Spellman.

A preliminary estimate for repairs will be given by phone by Customer Service. A purchase order for this amount is requested upon issuance of the RMA Number. A more detailed estimate will be made when the power supply is received at the Spellman Repair Center. In the event that repair work is extensive, Spellman will call to seek additional authorization from your company before completing the repairs.

5.3 Ordering Options and Modifications

Many of the options can be retrofitted into Spellman’s power supplies by our factory. For prices and arrangements, contact the Spellman Sales Department.

5.4 Shipping Instructions

All power supplies returned to Spellman must be sent shipping prepaid. Pack the units carefully and securely in a suitable container, preferably in the original container, if available. The power supply should be surrounded by at least four inches of shock absorbing material. Please return all associated materials, i.e. high voltage output cables, interconnection cables, etc., so that we can examine and test the entire system.

All correspondence and phone calls should be directed to: Spellman High Voltage Electronics Corp.

475 Wireless Boulevard Hauppauge, New York 11788 TEL: (631) 630-3000 FAX: (631) 435-1620 E-Mail: sales@Spellmanhv.com

XRB80PN100HR MONOBLOCK® MANUAL 14 118169-001 REV C

RE-SEASONING PROCESS

for

XRB80PN100HR

Parameters

Step 1

Step 2

Step 3

Step 4

Step 5

Step 6

Step 7

Step 8

Step 9

Step 10

Voltage (kV)

Current (uA)

250

400

550

700

850

1000

1150

1250

For units with

idle time >3

months

5 min

For units with

idle time of 1-3

months

60 sec

For units with

idle time of 2-30

days

30 sec

Daily turn on

3 sec

TABLE 2

To obtain information on Spellman’s product warranty please visit our website at:

http://www.spellmanhv.com/en/About/Warranty.aspx

XRB80HR Digital Interface

Serial – RS-232

This information contained in this publication is derived in part from proprietary and patent data. This information h as

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.

118170-001 REV A

475 Wireless Boulevard • Hauppauge, New York 11788, USA • www.spellmanhv.com • T:+1 631.630.3000 • F:+1 631.435.1620

Changes

REVISION DATE DESCRIPTION

1 10/13/16 Draft version

2 4/13/17 Update Photo & remove 5.7

118170-001 REV A Page 2 of 37

Table Of Contents

1.0 Scope ....................................................................................................................... 4

2.0 Functional Description ........................................................................................... 4

3.0 Getting Started - Interface Wiring and Pin-outs ................................................... 4

3.1 RS232 Interface ..................................................................................................... 4

3.4 RS-232 Cabling ..................................................................................................... 5

4.0 Getting Started - Software ...................................................................................... 6

4.1 RS-232 .................................................................................................................. 6

5.0 Serial Commands – RS-232 .................................................................................... 8

5.1 Serial Interface Protocol ........................................................................................ 8

5.2 Command Arguments ............................................................................................ 8

5.3 Checksums ............................................................................................................ 8

5.4 Command Overview ............................................................................................ 10

5.5 Response Overview ............................................................................................. 11

5.6 Command Structure ............................................................................................ 13

6.0 SerialCommand Handling ..................................................................................... 37

6.1 Command Time out ............................................................................................. 37

6.2 Buffer Flushing .................................................................................................... 37

6.3 Hand shaking ....................................................................................................... 37

118170-001 REV A Page 3 of 37

WARNING

THIS EQUIPMENT GENERATES DANGEROUS VOLTAGES THAT MAY BE FATAL.

PROPER GROUNDING OF ALL HIGH VOLTAGE EQUIPMENT IS ESSENTIAL.SEE 80kv

MONOBlOCK OWNERS MANUAL FOR PROPER GROUNDING TECHNIQUE AND SAFETY

PRECAUTIONS BEFORE APPLING AC INPUT POWER TO THE XRB UNIT.

TO PREVENT DAMAGE TO THE HOST COMPUTER THE COMPUTER SHOULD BE

GROUNDED TO THE SAME GROUND AS THE UUT.

This unit is capable of producing X-ray radiation, please proceed only after

proper precautions have been taken to prevent X-ray exposure.

1.0 SCOPE

This document applies to the communications interfaces on the XRB, assembly 460350-001.

2.0 FUNCTIONAL DESCRIPTION

The XRB provides 1 type of digital communications interface:

 RS-232 on J3

3.0 GETTING STARTED - INTERFACE WIRING AND PIN-OUTS

3.1 RS232 INTERFACE

The RS232C interface has the following attributes:

 115K bits per second  No Parity  8 Data Bits  1 Stop Bit  No handshaking  DB-9 connector as shown

Figure 1 – J3, RS-232 DB-9M pinout (front view)

118170-001 REV A Page 4 of 37

DESCRIPTION

1 - 2

Tx Out

Rx In 4 -

Ground

6 - 7 - 8 - 9

PC to XRB Board Cable Details

PC Connector (DB-9 Female)

XRB Connector (DB-9 Male)

Pin 2: RX In

Pin 2: TX Out

Pin 3: TX Out

Pin 3: RX In

Pin 5: Ground

3.4 RS-232 CABLING

A standard shielded RS-232 cable is used to connect the XRB serial port to the serial port on a standard personal computer. Please refer to the following chart.

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4.0 GETTING STARTED – SOFTWARE The following sections detail how to create software to interface to the XRB communications interfaces.

4.1 RS-232

The RS-232 interface makes use of a standard ‘command/response’ communications protocol. See section 5.0 for the syntax of the serial interface protocol. The programmer should also review section 4.3 for programming considerations for the RS-232 interface.

All software that addresses the RS-232 interface must adhere to the following parameters:

 A default Baud rate of 115.2K bps  No Parity  8 Data Bits  1 Stop Bit  No handshaking

4.1.1 Enabling Communications Objects in Visual Basic for RS-232

Communications in Microsoft Visual Basic 6.0 are directed to a control that abstracts the port. In the case of serial and USB we need Microsoft Comm Control 6.0. To enable this in your VB 6 project, go to:

Project -> Components

Then in the list make sure that Microsoft Comm Control 6.0 has a check next to it. The Comm Control Object should then appear in your toolbox. It will have an icon of a telephone and will be named: MSComm. This can be dragged and dropped into your application. You will then need to set the object’s properties.

4.1.2 Configuring Communications in Visual Basic for RS-232

In order to configure the MSComm Object, first you must initialize it in the Object properties:

Settings 115200,n,8,1 Handshaking 0 – comNone

The application can be set to either default to a specific COM Port or the End User can be allowed to choose one for the particular

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PC. For the “Default” scenario, include the following commands in the Form_Load() routine:

MSComm1.CommPort = portNumber

MSComm1.PortOpen = True

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5.0 SERIAL COMMANDS – RS-232

5.1 SERIAL INTERFACE PROTOCOL

Serial communications will use the following protocol:

There are two categories of commands from the host computer to the tank.

1. Commands that have an argument.

2. Commands that do not have an argument.

The syntax of commands that have an argument is:

The syntax of commands that do not have an argument is:

The specification of the above symbols is as follows:

<STX> = 1 ASCII 0x02 Start of Text character

<CMD> = 3 - 4 ALPHA ASCII characters representing the command ID

<SP> = 1 ASCII 0x20 character

<ARG> = Command Argument

<;> = 1 ASCII 0x3B semicolon character 0x3B

<CSUM> = Checksum (see section 5.3 for details)

<CR> = Carriage return character 0x0D.

<LF> = Line feed character 0x0A

5.2 COMMAND ARGUMENTS

The format of the numbers is a variable length string. To represent the number

42, the string ‘42’, ‘042’, or ‘0042’ can be used. This being the case, commands

and responses that carry data are variable in length.

5.3 CHECKSUMS

The checksum is computed as follows:

 Add the <CMD>, <,>, and <ARG> bytes excluding the <STX> byte into

a 16 bit (or larger) word. The bytes are added as unsigned integers.

 Take the 2’s compliment (negate it) and add the value of 1 to the resulting

value.

 Truncate the result down to the eight least significant bits.  Clear the most significant bit (bit 7) of the resultant byte, (bitwise AND with

0x7F).

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 Set the next most significant bit (bit 6) of the resultant byte (bitwise OR

with 0x40). Using this method, the checksum is always a number between 0x40 and 0x7F. The checksum can never be confused with the <STX> or <ETX> control characters, since these have non-overlapping ASCII values.

If the DSP detects a checksum error, the received message is ignored – no acknowledge or data is sent back to the host. A timeout will act as an implied NACK.

CheckSum Calulate Example for VREF command:

VREF<SP>4095; = 0x260H – total sum in Hex. = 0xD9FH – negate. = 0xDA0H – add one. = 0xA0H – truncate down to 8 least significant bits. = 0x20H – clear bit 7. = 0x60H – set bit 6.

CheckSum = 0x60H

The following is sample code, written in Visual Basic, for the generation of checksums:

Public Function ProcessOutputString(outputString As String) As String

Dim i As Integer Dim CSb1 As Integer Dim CSb2 As Integer Dim CSb3 As Integer Dim CSb$ Dim X

X = 0 For i = 1 To (Len(outputString)) 'Starting with the CMD character X = X + Asc(Mid(outputString, i, 1)) 'adds ascii values together Next i

CSb1 = 256 - X CSb2 = 127 And (CSb1) 'Twos Complement CSb3 = 64 Or (CSb2) 'OR 0x40 CSb$ = Chr(Val("&H" & (Hex(CSb3)))) ProcessOutputString = Chr(2) & outputString & CSb$ & Chr(13) & Chr(10)

End Function

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5.4 COMMAND OVERVIEW

Command Name

<CMD>

<ARG>

RANGE

Program kV

VREF

1-4 ASCII

0-4095

Program mA

IREF

1-4 ASCII

0-4095

Request kV Sepoint

VSET

None

Request mA Sepoint

ISET

None

Request kV Monitor

VMON

None

Request mA Monitor

IMON

None

Request Filament Monitor

FMON

None

Turn XRAY On/Off

ENBL

1 ASCII

0-1

Enable Comm Watchdog

WDTE

1 ASCII

0-1

Tickle Comm Watchdog

WDTT

None

Reset Faults

CLR

None

Request Faults

FLT

None

Read XRAY Status

STAT

None

Request Software Version

FREV

None

Request Voltage Scaling

SLVR

None

Request Current Scaling

SLIR

None

Request Model Number

MODR

None

Request Hardware Version

HWVR

None

Request Software Build Version

SOFT

None

Request –15V LVPS

LVPS

None

Request Tank Temperature

TEMP

None

Program Baud Rate

BAUD 1 1-2

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Serial Number Program

SNUS

16 ASCII character

string

Request Serial Number

SNUR

16 ASCII character

string

Response Name

<CMD>

Response

Request kV Monitor

VMON

6-9

Request mA Monitor

IMON

6-9

Request kV Setpoint

VSET

6-9

Request mA Setpoint

ISET

6-9

Request Filament Monitor

FMON

6-9

Request Faults

FLT

Read XRAY Status

STAT

Request Software Version

FREV

Request Voltage Scaling

SLVR

Request Current Scaling

SLIR

Request Model Number

MODR

6-15

Request Hardware Version

HWVR

Request Software Build Version

SOFT

9-10

Request –15V LVPS

LVPS

6-9

5.5 RESPONSE OVERVIEW

The command responses will follow the same format as outlined above in

section 5.1. This list is comprised of Commands with complex responses

only. Commands using a simple response will use the <;> character

(ASCII 0x3B) as a “Success” response. These responses will be 5 ASCII

characters in length.

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Request Tank Temperature

TEMP

6-9

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5.6 COMMAND STRUCTURE

5.6.1 Program kV

Description:

The host requests that the firmware change the setpoint of kV.

Direction:

Host to supply

Syntax:

Where:

<ARG> = 0 - 4095 in ASCII format

Example:

Response:

See 5.6.15 for voltage scaling

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5.6.2 Program mA

Description:

The host requests that the firmware change the setpoint of mA.

Direction:

Host to supply

Syntax:

Where:

<ARG> = 0 - 4095 in ASCII format

Example:

Response:

See 5.6.16 for current scaling

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5.6.3 Request kV Monitor

Description:

The host requests that the firmware report kV monitor.

Direction:

Host to supply

Syntax:

Example:

Response:

Where:

<ARG>=0-4095 in ASCII format representing unscaled value.

Example:

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5.6.4 Request kV Setpoint

Description:

The host requests that the firmware report kV setpoint.

Direction:

Host to supply

Syntax:

Example:

Response:

Where:

<ARG>=0-4095 in ASCII format representing unscaled value.

Example:

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5.6.5 Request mA Setpoint

Description:

The host requests that the firmware report mA setpoint.

Direction:

Host to supply

Syntax:

Example:

Response:

Where:

<ARG>=0-4095 in ASCII format representing unscaled value.

Example:

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5.6.6 Request mA Monitor

Description:

The host requests that the firmware report mA monitor.

Direction:

Host to supply

Syntax:

Example:

Response:

Where:

<ARG>=0-4095 in ASCII format representing unscaled value.

Example:

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5.6.7 Request Filament Monitor

Description:

The host requests that the firmware report Filament monitor.

Direction:

Host to supply

Syntax:

Example:

Response:

Where:

<ARG>=0-4095 in ASCII format representing unscaled value.

Example:

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5.6.8 Turn XRAYS On/Off

Description:

The host requests that the firmware to turn XRAY On/Off.

Direction:

Host to supply

Syntax:

Where:

<ARG> 1 = XRAY On, 0 = XRAY Off in ASCII format

Example:

Response:

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5.6.9 Enable Commuunication Watchdog

Description:

The host requests that the firmware to enable communication watchdog.

Direction:

Host to supply

Syntax:

Where:

<ARG> 1 = Enable Watchdog, 0 = Disable Watchdog

Example:

Response:

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5.6.10 Tickle Communication Watchdog

Description:

The host requests that the firmware reset communictation watchdog timer.

Direction:

Host to supply

Syntax:

Example:

Response:

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5.6.11 Reset Faults

Description:

The host requests that the firmware resets all Fault messages and

indicators.

Syntax:

Example:

Response:

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5.6.12 Request Faults

Description:

The host requests that the firmware report Faults.

Direction:

Host to supply

Syntax:

Example:

Response:

Where:

<ARGx> 1 = Fault, 0 = No Fault in ASCII format

ARG1 = ARC

ARG2 = Over Temperature

ARG3 = Over Voltage

ARG4 = Under Voltage

ARG5 = Over Current

ARG6 = Under Current

ARG7 = Watchdog Time-out

ARC8 = Open Interlock

ARC9 = Over Power

Example:

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5.6.13 Request XRAY Status

Description:

The host requests that the firmware read the XRAY status.

Direction:

Host to supply

Syntax:

Example:

Response:

Where ARG is status. A 1 indicates XRAY On. A 0 indicates XRAY Off.

Example:

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5.6.14 Request DSP Software Part Number/Version

Description:

The host requests that the firmware sends the DSP firmware.

Direction:

Host to supply

Syntax:

Example:

Response:

Where:

<ARG> consists of eleven ASCII characters representing the current

firmware part number/version. The format is SWM9999-999.

Example:

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5.6.15 Request Voltage Scaling

Description:

The host requests requests that the firmware send the current unit voltage

scaling.

Direction:

Host to supply

Syntax:

Example:

Response:

Where:

ARG = KV scaling (8889 = 88.89 kV)

Example:

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5.6.16 Request Current Scaling

Description:

The host requests requests that the firmware send the current unit current

scaling.

Direction:

Host to supply

Syntax:

Example:

Response:

Where:

ARG = mA scaling (2220 = 2.220 mA)

Example:

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5.6.17 Request Model Number

Description:

The host requests that the firmware sends the unit model number

Direction:

Host to supply

Syntax:

Example:

Response:

Where:

<ARG> consists of one to ten ASCII characters representing the model

number. The format is XBR80N100 or CB for cone beam option

Example:

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5.6.18 Request Hardware Version

Description:

The host requests that the firmware sends the hardware version.

Direction:

Host to supply

Syntax:

Example:

Response:

Where:

<ARG> consists of 3 ASCII characters representing the hardware version.

The format is ANN, where A is an alpha character and N is a numeric

character

Example:

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5.6.19 Request Software Build Version

Description:

The host requests that the firmware sends the hardware version.

Direction:

Host to supply

Syntax:

Example:

Response:

Where:

<ARG> consists of four to five ASCII characters representing the current

firmware build version. The format is 12345.

Example:

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5.6.20 Request –15V LVPS

Description:

The host requests that the firmware report –15V LVPS.

Direction:

Host to supply

Syntax:

Example:

Response:

Where:

<ARG>=0-4095 in ASCII format representing unscaled value.

To convert the unscaled value to voltage, use the equation below:

x = unscaled value.

Voltage = -(3972 - x) * 0.006224.

Example:

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5.6.21 Request Tank Temperature

Description:

The host requests that the firmware sends the tank temperature.

Direction:

Host to supply

Syntax:

Example:

Response:

Where:

<ARG>=0-956 in ASCII format representing 0 – 70.036 degrees C.

Example:

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5.6.22 Program Baud Rate Select

Description:

The host requests that the firmware select a baud rate.

Direction:

Host to supply

Syntax:

Where:

<ARG> = 1 in ASCII format = 115200 Baud

<ARG> = 2 in ASCII format = 9600 Baud

Example:

Response:

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5.6.23 PROGRAM SERIAL NUMBER

Description: After the password command (PASS) and correct password are sent, the user can program the unit serial number. Up to 16 alphanumeric characters are allowed. Password ARG = 1212

Direction: Host to supply

Syntax: <STX><SNUS><SP><ARG><;><CSUM><CR><LF>

Where: <ARG> = 16 ASCII character string.

Example: <STX><SNUS><SP><1234-ABCDE><;><CSUM><CR><LF>

Response:

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5.6.24 REQUEST SERIAL NUMBER

Description: The host requests that the firmware sends the current stored unit serial number. The unit always replies with 16 characters. It is up to the Host to accept valid character string.

Direction: Host to supply

Syntax: <STX><SNUR><;><CSUM><CR><LF>

Response: <STX>< ARG><;><CSUM><CR><LF>

Where:

<ARG>= 16 ASCII character string.

Example:

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6.0 SERIAL COMMAND HANDLING

6.1 Command Time OutThe host computer should set a serial time

out at approximately 100mS. This allows the DSP to process the incoming

message, and transmit a response. The DSP will initiate a reply to

incoming messages in approximately 1-2mS, with a worst case of 5mS.

6.2 Buffer Flushing

The DSP will flush the incoming serial data buffer every time an STX is

received. This provides a mechanism to clear the receive buffer of partial

or corrupt messages.

6.3 Handshaking

The only handshaking implemented on the host interface, is built in to the

implementation of this protocol. That is, the host must initiate all

communications. If the supply receives a program command, an

acknowledge message is sent back to the host via the “;” message. If the

host does not receive an acknowledge within the time out window, the

host should consider the message lost or the device off-line.

Similarly, if the supply receives a request command, the requested data is

sent back to the host. If the host does not receive the requested data

within the time out window, the host should consider the message lost or

the device off-line.

This essentially uses the full-duplex channel in a half-duplex

communication mode.

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Spellman MONOBLOCK Series, XRB80HR Instruction Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

SAFETY

Table of Contents