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118153-001 Rev. B

37

uX_Manual.doc REV -

6.9 Request Filament Current Limit

Description:
The host requests that the firmware report the filament current limit
setpoint. The A/bit scaling for the argument is model dependent. See the
tables in section 8 of this document.

Direction:
Host to supply

Syntax:
<STX><17><,><CSUM><ETX>

Response:
<STX><17><,><ARG><,><CSUM><ETX>

Where:
<ARG> = 0 - 4095 in ASCII format

Example:
<STX>17,4095,<CSUM><ETX>

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Summary of Contents for uX SERIES

Page 1: ...n Manual 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 uX SERIES ...

Page 2: ... 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 par...

Page 3: ...spannungsnetzteiles benötigen ca 5 Minuten um sich zu entladen Erden Sie sich nicht und arbeiten Sie nicht in feuchter oder nasser Umgebung 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 ...

Page 4: ...de l alimentation Ne vous mettez pas à la masse ou ne travaillez pas sous conditions mouillées ou humides 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 m...

Page 5: ...carica 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 ...

Page 6: ...tures 7 4 PRINCIPLES OF OPERATION 4 1 Chassis 12 4 2 Inverter 12 4 3 High Voltage Transformer 13 4 4 High Voltage Assembly 13 4 5 Control PWB 13 4 6 Filament Supply 13 4 7 Options 13 5 OPTIONS 5 1 XCC Option 14 5 2 5VPM 14 5 3 GB 14 5 4 K5302 14 5 5 K2001 14 563 Custom Designed Models 14 6 MAINTENANCE 6 1 Periodic Servicing 15 6 2 Performance Test 15 6 3 High Voltage Dividers 15 7 REPLACEMENT PART...

Page 7: ...ols Custom Models Only LIST OF FIGURES Figure 2 1 Dimensions 50kV uX 4 Figure 2 2 Dimensions 65kV uX 5 Figure 3 1 Typical Operating Setup uX 8 Figure 3 2 DC Input Filament Connections 9 Figure 3 3 Monitors Voltage Current Control Connections 10 Figure 3 4 Recommended Interlock HV on Connections 11 LIST OF TABLES Table 1 1 Options 2 ...

Page 8: ... ripple provides higher intensity levels with no increase in tube loading All these advancements are possible only by Spellman s long history in X ray power systems This series of power supplies utilize extremely advanced resonant conversion techniques along with sophisticated digital technology The uX series is specifically designed for X ray tube application where the high voltage is a positive ...

Page 9: ...are provided on the Analog Interface connector on the front of the chassis for connection to a safety switch The unit will not operate unless the interlock circuit is closed The recommended configuration is to close the interlock circuit through a 12V lamp rated for 0 5W to 0 8W and a safety switch This configuration provides fail safe interlocking During high voltage operation opening the safety ...

Page 10: ...ndard Spellman uX X Ray generators are covered by warranty Custom and special order models with an X suffix in the model number are also covered by warranty 2 2 Mechanical Installation The uX Series of modular X ray generators are designed for installation into existing or newly developed OEM equipment The X ray generator can also easily fit into bench top applications or test set requirements Sta...

Page 11: ...uX MANUAL 4 118151 001 REV A Figure 2 1 50kV uX DIMENSIONS ...

Page 12: ...uX MANUAL 5 118151 001 REV A Figure 2 2 65kVuX DIMENSIONS ...

Page 13: ... preferably to a water system ground using copper pipe or other earth ground using the connection terminal at the rear of the unit See Figure 3 1 for a typical operating setup The return line from the load should be connected to the terminal on the rear of the power supply Using a separate external ground at the load is not recommended C Attach the output cable to the load D Plug the high voltage ...

Page 14: ...al or remote adjustment of the output voltage and current Adjustments are made using the screwdriver adjustable potentiometers accessible through the top cover of the power supply or via an external voltage source provided by the operator In local control jumpers are installed on the 15 pin interface connector between pin 7 and pin 8 for voltage control and between pin 10 and pin 11 for current co...

Page 15: ...applied to the unit and the Interlock is Open High Voltage OFF The Preheat Level is adjustable from between 8A to 2 5A Selecting the correct preheat current level can greatly reduce or eliminate the overshoot that typically occurs on the output emission current when operating into a cold filament The Preheat adjustment is made when the power supply is in the high voltage OFF mode Interlock Open vi...

Page 16: ...uX MANUAL 9 118151 001 REV A Table 3 2 DC Input Filament Connections ...

Page 17: ...uX MANUAL 10 118151 001 REV A Figure 3 3 Monitors Voltage Current Control Connections ...

Page 18: ...uX MANUAL 11 118151 001 REV A Figure 3 4 Recommended Interlock HV on Configurations ...

Page 19: ...an be lethal Do not attempt to operate the power supply unless the user has a sufficient knowledge of the dangers and hazards of working with high voltage Do not attempt to approach or touch any internal or external circuits or components that are connected or have been connected to the power supply Be certain to discharge any stored energy that may be present before and after the power supply is ...

Page 20: ... PWB High Voltage On Off control is accomplished by K2 and its associated circuitry Interlock control is provided by K2 Voltage feedback from a high voltage divider located on the High Voltage Assembly is sent to U16 Gain adjustment is provided by R98 The KV feedback signal is sent to the 15 pin D connector for remote monitoring Program voltages are typically ramped up to set level by the slow sta...

Page 21: ... current programming inputs and monitors to 0 5V 0 full rated output 5 3 Grid Bias Option GB Plug n play compatibility for Oxfords Apogee X ray tubes that utilize grid bias control 5 4 Mammoflex HV Cable K5302 Mammoflex HV cable for uX 5 5 Mammoflex HV Cable K2001 Mammoflex HV cable for uX with XCC option 5 6 Custom Designed Models X Units built to customer specifications are assigned an X number ...

Page 22: ...tage test procedures are described in Bulletin STP 783 Standard Test Procedures for High Voltage Power Supplies Copies can be obtained from the Spellman Customer Service Department Test equipment including an oscilloscope a high impedance voltmeter and a high voltage divider such as the Spellman HVD 100 or HVD 200 is needed for performance tests All test components must be rated for operating volt...

Page 23: ...nd serial number of the power supply 7 2 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 When requesting engineering or applications information please state the model and serial number of the power supply If specific components or circuit sections are involved in the inquiry it is help...

Page 24: ... 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 see...

Page 25: ...To obtain information on Spellman s product warranty please visit our website at http www spellmanhv com en About Warranty aspx ...

Page 26: ...tion 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...

Page 27: ...ision Table Revision Release Date Revision Number Changes Made To Document November 8 2013 Initial Release 2 18 14 1 Added Sections for Ethernet and USB 10 09 14 2 Added section 8 3 for uX80P100 02 13 15 3 Included HP model ...

Page 28: ...ID communication DLL USB_DLL dll 17 4 3 3 USB Example Code 18 5 0 Command Format 19 5 1 Serial Interface Protocol RS232 19 5 1 1 Command arguments 19 5 1 2 Checksums 19 5 2 Ethernet Interface 22 5 2 1 Ethernet Command Format 23 5 2 2 Ethernet Default IP Address 23 5 2 3 Ethernet Web Server 23 5 3 Universal Serial Bus 26 5 4 Control Command Overview 27 5 5 Response Overview 28 6 0 Command descripti...

Page 29: ...umber 44 6 17 Reset Run Hours 45 6 18 Reset Faults 46 6 19 Request Auxiliary KV Feedback 47 6 20 Request SVN Revision 48 6 21 Program High Voltage On Off 49 7 0 Command Handling 50 7 1 Command Time Out 50 7 2 Buffer Flushing 50 7 3 Handshaking 50 8 0 Product Specific Usage 51 8 1 uX50P50 51 8 2 uX65P65 53 8 3 uX80P100 55 ...

Page 30: ...ard 3 1 DIP Switches The DIP switch SW1 settings determine if the unit is running in local mode analog control or remote mode digital control via serial Ethernet USB Switch Settings for Local or Remote Mode ID Local Mode Description Switch Position SW1 1 Local Disable processor KV setting control OFF SW1 2 Local Bypass processor KV enable relay ON SW1 3 Local Disable processor mA control OFF SW1 4...

Page 31: ...erface The RS232C interface has the following attributes 115 2K bits per second factory default No Parity 8 Data Bits 1 Stop Bit No handshaking DB 9 connector as shown Figure 1 below shows the pin location and definition Figure 1 JB2 RS 232 DB 9M pinout front view Pin Definition PIN DESCRIPTION 1 2 Tx Out 3 Rx In 4 5 Ground 6 7 8 9 ...

Page 32: ...stem integrator TCP Port Number can be set by the system integrator RJ 45 connector Network attachment via Crossover and Standard Ethernet cables LED 1 LED 2 PIN DESCRIPTION 1 TX 2 TX 3 RX 4 5 6 RX 7 8 The Ethernet RJ 45 has two LED indicators as shown in Figure 5 The left LED LED1 indicates that the network processor has a valid network link The right LED LED2 indicates network activity ...

Page 33: ...and the second is through the use of a switch hub or network A direct connection requires a non standard cable where the wires are not run straight through Please refer to the two cable ends shown below in Crossover Cable for Direct Connection A standard connection through a hub switch or network uses a standard CAT5 patch cable Please refer to the two cable ends shown below in figure 8 Standard S...

Page 34: ...ace has the following attributes Compliant with USB 1 1 and USB 2 0 specifications Type B male connector Included driver can be communicated with via standard Windows serial communications methods Figure 6 JB4 USB Type B front view PIN DESCRIPTION 1 Vbus 5V 2 D 3 D 4 Ground ...

Page 35: ...to achieve acceptable operation under these conditions Block Diagram if USB Cable Utilizing Ferrites Ferrite beads should be attached to the USB cable next to the connectors both sides should be installed In extreme cases ferrite cores may be added where the cable is looped 3 or 4 times around the core as shown in figure 11 Cores of 1 5 to 2 inches should be used at both ends of the cable In addit...

Page 36: ...mmunications protocol See section 5 0 for the syntax of the serial interface protocol The baud rate for the RS232 is adjustable using a serial control command see the change baud rate command The factory default is 115200 baud Supported baud rates are 115200 57600 38400 19200 9600 and 4800 All software that addresses the RS 232 interface must adhere to the following parameters No Parity 8 Data Bit...

Page 37: ... parity Parity None Send Routine For example void SendCommand Command cmd string parameters ref byte buf Receive Routine That is polled or interrupt called For example void ReceiveCommand ref byte buf 4 1 2 Configuring Communications in C for RS 232 In order to configure the COM port object first you must initialize it in the COM port properties Settings 115200 n 8 1 Handshaking 0 None The followi...

Page 38: ...uf Array Clear buf 0 128 Clear a transmit buffer len BuildCommand cmd parameters buf Build Message port Write buf 0 len Send buffer to COMM Port lastResult CommResult CmdGood For the receive routine the reply routine would be polled when the receive buffer is filled with messages Then a user routine would be needed to parse the reply messages void ReceiveCommand ref byte buf Wait for response Arra...

Page 39: ...troduction is given here First a socket must be created and initialized to the correct IP address and port number In the following code snippet address has the IP address assigned to the uX and IPPort the port number public CommResult Connect byte address int IPPort lastResult CommResult CmdErr socket new Socket AddressFamily InterNetwork SocketType Stream ProtocolType IP socket NoDelay true try s...

Page 40: ...k Send buf idx SocketFlags None Send the command via the socket Array Clear buf 0 buf Length Clear the buffer response is put here counter 0 Counts the number of bytes received Response loop keep reading socket until timer expires timeout or the STX char is found in the buffer while timer 6000 IList byte buf Contains ETX counter sock Receive buf 128 SocketFlags None Thread Sleep 5 timer cmd System...

Page 41: ...tiple buffers and it is possible that multiple messages can be present in a single buffer Unused bytes in write reports should be filled with zeros Unused bytes in read reports will be filled with zeros 4 3 1 USB Driver Installation The Windows USB Human Interface Device HID driver is included with the windows operating system The driver should automatically install itself when the uX is first con...

Page 42: ...ation DLL USB_DLL dll Spellman provides a dll dynamic link library to help communicate with the uX via the Windows driver This file is named USB_DLL dll and is included on the CD that comes with the uX unit This library contains 3 functions FindTheHid Finds the connection with the correct VID PID WriteReport str Writes a string to the connected device ReadReport Reads a string from the connected d...

Page 43: ... buffers required to send report int blocksToSend len 64 if len blocksToSend usbconst rpt_size blocksToSend for int iBlk 0 iBlk blocksToSend iBlk for each report for int i 0 i len i format byte buffer as string str str System Convert ToChar buf i usbPort WriteReport str write report to uX Wait for report back from uX while timeout_cnt 50 Response timeout counter loop rptstr usbPort ReadReport Read...

Page 44: ...rry data are variable in length 5 1 2 Checksums The checksum is computed as follows Add the CMD ARG bytes into a 16 bit or larger word The bytes are added as unsigned integers Take the 2 s compliment 1 s compliment plus 1 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 Set the next most significant bit bi...

Page 45: ...the checksum is STX 10 4095 CSUM ETX First you add up all the characters starting with the 1 in the command number to the comma before the checksum with their ASCII values in hexadecimal 0x31 0x30 0x2C 0x34 0x30 0x39 0x35 0x2C 0x18B Next you then take the two s complement of that number by negating it by subtracting it from 0x100 decimal 256 and only retain the lowest 7 bits by bitwise AND the res...

Page 46: ...e the checksum with their ASCII values in hexadecimal 0x32 0x32 0x2C 0x90 Next you then take the two s complement of that number by negating it by subtracting it from 0x100 decimal 256 and only retain the lowest 7 bits by bitwise AND the results with 0x7F NOTE This combines the steps of getting the twos complement truncating the result to 8 bits and clearing the 8th bit 0x100 0x90 0x7F 0x70 Finall...

Page 47: ... by the required data bytes as specified in section 5 2 1 The following figure summarizes theTCP IP header configuration Please note that this functionality is provided by the software implementation of the Open Systems Interconnection OSI TCP IP protocol stack specifically the upper 4 layers Network TCP IP datagram header ...

Page 48: ...mmunication except that when using Ethernet communication there is no checksum byte 5 2 2 Ethernet Default IP Address The default factory settings for the Ethernet interface are IP Address 192 168 1 4 Port Number 50001 5 2 3 Ethernet Web Server The uX has resident an applet that can be accessed using a Web Browser such as Internet Explorer This can be used to change the Ethernet settings To access...

Page 49: ...and click the login button in the lower left corner You will now get the network settings page Settings Screen You can change the IP address subnet mask gateway address and port number Remember to record these values because at the next power up they will be used to access the Ethernet Type the values in their respective fields Internet address is ...

Page 50: ...s using the Reset IP Address switch on the uX unit To do this power down the uX unit Push the Reset IP Address switch and hold it down and then power up the unit while continuing to hold down the switch Wait 5 seconds while holding the switch down Release the switch power cycle the unit You should now be able to access the unit at the default 192 168 1 4 address The applet also has an About page T...

Page 51: ...x02 Start of Text character CMD 2 ASCII characters representing the command ID 1 ASCII 0x2C character ARG Command Argument 1 ASCII 0x2C character CSUM Checksum see section 5 1 2 for details ETX 1 ASCII 0x03 End of Text character This is identical to the Serial RS232 protocol as described in section 5 1 Note that the checksum is used for USB communication ...

Page 52: ...equest DAC A Setpoint 14 None Request DAC B Setpoint 15 None Request DAC D Setpoint 16 None Request DAC C Setpoint 17 None Request Analog Readbacks Channels 7 15 19 None Request Analog Readbacks Channels 0 6 20 None Request HV On Hours Counter 21 None Request Status 22 None Request Software Version 23 None Request Hardware Version 24 None Request Model Number 26 None Reset HV On Hours Counter 30 N...

Page 53: ...Response Request DAC A Setpoint 14 11 ASCII Request DAC B Setpoint 15 11 ASCII Request DAC D Setpoint 16 11 ASCII Request DAC C Setpoint 17 11 ASCII Request Analog Readbacks Ch 7 15 19 24 51 ASCII Request Analog Readbacks Ch 0 6 20 20 41 ASCII Request Total Hours High Voltage On 21 14 ASCII Request Status 22 12 ASCII Request MCU Software Version 23 18 ASCII Request Hardware Version 24 10 ASCII Req...

Page 54: ...the same command would be sent as STX 10 4095 ETX 6 1 Change Baud Rate Description The host requests that the firmware change the baud rate of the RS232 serial communications port The factory default is 115200 The newly programmed baud rate will be saved in non volatile memory and will become the new default power up baud rate Direction Host to supply Syntax STX 7 ARG CSUM ETX Where ARG 0 5 in ASC...

Page 55: ...d of 200ms before sending new commands at the new baud rate 6 2 Program kV Setpoint Description The host requests that the firmware change the kV output setpoint The kV bit scaling for the argument is model dependent See the tables in section 8 of this document Direction Host to supply Syntax STX 10 ARG CSUM ETX Where ARG 0 4095 in ASCII format Example STX 10 4095 CSUM ETX Response Success STX 10 ...

Page 56: ...put The mA bit scaling for the argument is model dependent See the tables in section 8 of this document Direction Host to supply Syntax STX 11 ARG CSUM ETX Where ARG 0 4095 in ASCII format Example STX 11 4095 CSUM ETX Response Success STX 11 CSUM ETX Error STX 11 ARG CSUM ETX where ARG error code Error Codes TBD 1 out of range ...

Page 57: ...eheat setpoint The A bit scaling for the argument is model dependent See the tables in section 8 of this document Direction Host to supply Syntax STX 12 ARG CSUM ETX Where ARG 0 4095 in ASCII format Example STX 12 4095 CSUM ETX Response Success STX 12 CSUM ETX Error STX 12 ARG CSUM ETX where ARG error code Error Codes TBD 1 out of range ...

Page 58: ...mum filament current that will be allowed by the hardware The A bit scaling for the argument is model dependent See the tables in section 8 of this document Direction Host to supply Syntax STX 13 ARG CSUM ETX Where ARG 0 4095 in ASCII format Example STX 13 4095 CSUM ETX Response Success STX 13 CSUM ETX Error STX 13 ARG CSUM ETX where ARG error code Error Codes TBD 1 out of range ...

Page 59: ...hat the firmware report the kV output setpoint The kV bit scaling for the argument is model dependent See the tables in section 8 of this document Direction Host to supply Syntax STX 14 CSUM ETX Response STX 14 ARG CSUM ETX Where ARG 0 4095 in ASCII format Example Response STX 14 4095 CSUM ETX ...

Page 60: ...hat the firmware report the current mA output setpoint The mA bit scaling for the argument is model dependent See the tables in section 8 of this document Direction Host to supply Syntax STX 15 CSUM ETX Response STX 15 ARG CSUM ETX Where ARG 0 4095 in ASCII format Example Response STX 15 4095 CSUM ETX ...

Page 61: ...the firmware report the current filament preheat setpoint The A bit scaling for the argument is model dependent See the tables in section 8 of this document Direction Host to supply Syntax STX 16 CSUM ETX Response STX 16 ARG CSUM ETX Where ARG 0 4095 in ASCII format Example Response STX 16 4095 CSUM ETX ...

Page 62: ...ts that the firmware report the filament current limit setpoint The A bit scaling for the argument is model dependent See the tables in section 8 of this document Direction Host to supply Syntax STX 17 CSUM ETX Response STX 17 ARG CSUM ETX Where ARG 0 4095 in ASCII format Example STX 17 4095 CSUM ETX ...

Page 63: ...TX 20 CSUM ETX Example STX 20 CSUM ETX Response STX 20 ARG1 ARG2 ARG3 ARG4 ARG5 ARG6 ARG7 CSUM ETX Where ARG1 Control Board Temperature Sensor Reading range 0 4095 ARG2 Low Voltage Supply Monitor range 0 4095 ARG3 kV Feedback Reading range 0 4095 ARG4 mA Feedback Reading range 0 4095 ARG5 Filament Current Reading range 0 4095 ARG6 Filament Voltage Reading range 0 4095 ARG7 High Voltage Board Tempe...

Page 64: ...ends the present value of the Total Hours High Voltage On Direction Host to supply Syntax STX 21 CSUM ETX Example STX 21 CSUM ETX Response STX 21 ARG1 CSUM ETX Where ARG1 is the HV On time as a decimal string X Y and X hours on The ASCII Period Character Y Tenths of hours Example Response for 1234 9 hours STX 21 1234 9 CSUM ETX ...

Page 65: ...icator indicates 1 of 3 possible faults Interlock Fault Interlock Opened while High Voltage was On Over Voltage Fault Output Voltage exceeds 106 of unit maximum Configuration Fault Unit Configuration stored in NV memory is invalid This response will also be sent in an unsolicited manner when either the interlock is opened while High Voltage is On interlock fault or an Overvoltage fault occurs This...

Page 66: ...2 1 0 0 0 0 CSUM ETX Note For this command the Interlock and Over voltage fault indicators persist until they are cleared The Interlock fault interlock opened while HV was on is automatically cleared when the interlock is closed The Over Voltage fault High Voltage 106 of unit maximum is automatically cleared when High Voltage is again turned on In addition the Clear Faults command can be sent to m...

Page 67: ... Host to supply Syntax STX 23 CSUM ETX Example STX 23 CSUM STX Response STX 23 ARG CSUM ETX Where ARG consists of eleven ASCII characters representing the current firmware part number version The format is SWMxxxx yyy where xxxx is a 4 numeric character software identification number and yyy a 3 numeric character version number Example Response STX 23 SWM9999 999 CSUM ETX ...

Page 68: ... that the firmware sends the hardware version Direction Host to supply Syntax STX 24 CSUM ETX Example STX 24 CSUM ETX Response STX 24 ARG CSUM ETX Where ARG consists of 3 ASCII characters representing the hardware version The format is NNN where N is a numeric character Example STX 24 001 CSUM ETX ...

Page 69: ...t the firmware sends the unit model number Direction Host to supply Syntax STX 26 CSUM ETX Example STX 26 CSUM ETX Response STX 26 ARG CSUM ETX Where ARG consists of five ASCII characters representing the model number The format is XNNNN where N is a numeric character Example STX 25 X9999 CSUM ETX ...

Page 70: ...B 45 uX_Manual doc REV 6 17 Reset Run Hours Description The host requests that the firmware resets the run hour counter Direction Host to supply Syntax STX 30 CSUM ETX Example STX 30 CSUM ETX Response STX 30 CSUM ETX ...

Page 71: ...quests that the firmware resets all Fault messages and indicators Direction Host to supply Syntax STX 52 CSUM ETX Example STX 52 CSUM ETX Response STX 52 CSUM ETX Note This command does not clear a configuration fault The configuration problem must be corrected to clear that fault ...

Page 72: ...ry KV Feedback This is similar to kV feedback but is scaled differently to allow a higher full scale value The kV bit scaling for the argument is model dependent See the tables in section 8 of this document Direction Host to supply Syntax STX 65 CSUM ETX Example STX 65 CSUM ETX Response STX 65 ARG CSUM ETX Where ARG 0 4095 Example STX 65 4095 CSUM ETX ...

Page 73: ... Spellman HV version control number that specifically identifies the firmware build Direction Host to supply Syntax STX 66 CSUM ETX Example STX 66 CSUM ETX Response STX 66 ARG CSUM ETX Where ARG consists of ASCII characters representing the SVN firmware revision number The length is variable but will be a maximum of 6 characters Example STX 66 12345 CSUM ETX ...

Page 74: ...n on or off High Voltage Direction Host to supply Syntax STX 99 ARG CSUM ETX Where ARG 1 On 0 Off in ASCII format Example Turn High Voltage On STX 99 1 CSUM ETX Response Success STX 99 CSUM ETX Error STX 99 ARG CSUM ETX Where ARG error code Error Codes 1 out of range ARG must be 0 or 1 2 Interlock 1 open High Voltage Disabled ...

Page 75: ... 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...

Page 76: ...Auxiliary High Voltage output Monitor mA Feedback 2 4 mA 0 58608 uA Bit Output Current Monitor Filament Current 3 6 A 0 87912 mA Bit Filament Current Monitor Filament Voltage 5 5 V 0 001243 V Bit Filament Voltage Monitor Control Board Temperature 300 deg C 0 07326 C Bit Temperature Sensor 10 mV Degree C High Voltage Bd Temperature 300 deg C 0 07326 C Bit Temperature Sensor 10 mV Degree C max Low V...

Page 77: ... Program Filament Current Limit Program DAC Channel C LSB 2 442 mA Vref 10v Request Voltage Setpoint Request DAC A Setpoint LSB 12 21 v Request Emission Current Setpoint Request DAC B Setpoint LSB 488 uA Request Filament Pre heat Setpoint Request DAC D Setpoint LSB 2 442 mA Vref 10v Request Filament Current Limit Request DAC C Setpoint LSB 2 442 mA Vref 10v Request Analog Readbacks Request Analog ...

Page 78: ...A 2 442 mA Bit FIL_PREHEAT Analog Signal Full Scale 4095 Digital Counts Scaling LSB Multiplier Notes kV Feedback 65 0 15 87 V Bit High Voltage output Monitor kV Feedback 2 71 5kV 17 46 V Bit Auxiliary High Voltage output Monitor mA Feedback 2 4 mA 0 58608 uA Bit Output Current Monitor Filament Current 3 6 A 0 87912 mA Bit Filament Current Monitor Filament Voltage 5 5 V 0 001243 V Bit Filament Volt...

Page 79: ... Program Filament Current Limit Program DAC Channel C LSB 2 442 mA Vref 10v Request Voltage Setpoint Request DAC A Setpoint LSB 12 21 v Request Emission Current Setpoint Request DAC B Setpoint LSB 488 uA Request Filament Pre heat Setpoint Request DAC D Setpoint LSB 2 442 mA Vref 10v Request Filament Current Limit Request DAC C Setpoint LSB 2 442 mA Vref 10v Request Analog Readbacks Request Analog ...

Page 80: ...2 uA Bit Output Current Monitor Filament Current 3 6 A 0 87912 mA Bit Filament Current Monitor Filament Voltage 5 5 V 0 001243 V Bit Filament Voltage Monitor Control Board Temperature 300 deg C 0 07326 C Bit Temperature Sensor 10 mV Degree C High Voltage Bd Temperature 300 deg C 0 07326 C Bit Temperature Sensor 10 mV Degree C max Low Voltage Supply Monitor 42 9V 0 10476 V Bit 24V supply monitor Se...

Page 81: ...Program Filament Current Limit Program DAC Channel C LSB 2 442 mA Vref 10v Request Voltage Setpoint Request DAC A Setpoint LSB 19 536 v Request Emission Current Setpoint Request DAC B Setpoint LSB 1 221 uA Request Filament Pre heat Setpoint Request DAC D Setpoint LSB 2 442 mA Vref 10v Request Filament Current Limit Request DAC C Setpoint LSB 2 442 mA Vref 10v Request Analog Readbacks Request Analo...

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