MP1 TECHNICAL MANUAL
MP-1 TECHNICAL MANUAL © GULMAY Ltd 2003
File Name Issue
CONTROLLED DOCUMENT © GULMAY LTD 2003 MPMANF.DOC Date 14th July 03 F Change Number DC0194
Engineering
APPROVALS Production
GULMAY LTD,CHERTSEY,ENGLAND E-mail:
[email protected]
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MP1 TECHNICAL MANUAL
CE MARKING Units with the CE Label applied (See below) are certified by Gulmay Ltd as complying with the European EMC & Low Voltage Directives.
Gulmay makes this statement on compliance based on measurements to the following harmonised European standards:Conducted Emissions to BS EN 50081-2 Radiated Emissions to BS EN 50081-2 Electromagnetic Field Immunity to BS EN 50082-2 Electrical Fast Transient Immunity to BS EN 50082-2 Electrical Safety to BSEN 61010-1 Electrical Testing to BSEN 60204-1 (Section 20 only)
_______________________ J.S.Hall Director 10th December 1997
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MP1 TECHNICAL MANUAL
CONTENTS
PAGE
DRAWINGS LIST
4
TABLES LIST
5
MECHANICAL DESCRIPTION
6
OVERVIEW
7
OPERATING INSTRUCTIONS
9
PROGRAMMING METHOD AND MODES
13
INSTALLATION AND INTERFACE REQUIREMENTS
15
INITIALISING THE MP1
16
ERROR NUMBER ALLOCATIONS
22
DATA TABLES
24
APPLICATION DATA
30
TABLE DECODE SWITCH POSITIONS
33
ENGINEERING CODE SUMMARY
33
RS232 CONNECTIONS AND SETTING
35
RS232 COMMAND SUMMARY
36
INTERCONNECTION DIAGRAM DESCRIPTION
38
SUGGESTED MP1 INTERFACE DIAGRAM DESCRIPTION
39
I/O PCB CIRCUIT DESCRIPTION
40
U PCB CIRCUIT DESCRIPTION
43
DISPLAY PCB CIRCUIT DESCRIPTION
46
PSU PCB DESCRIPTION
46
RECOMMENDED SPARE PARTS
47
APPENDIX A: FAULT DIAGNOSIS
48
APPENDIX B: REVISION HISTORY
53
APPENDIX C: PROGRAMME EPROM OPTIONS
57
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DRAWINGS LIST
FRONT DRAWING
FIG. 1.0
SUGGESTED MP1 INTERFACE (LAB I/O)
MP3-042
MP1 INTERCONNECTION DIAGRAM
MP2-003
I/O PCB CIRCUIT DIAGRAM
MP2-020
U PCB CIRCUIT DIAGRAM
MP2-008
DISPLAY PCB CIRCUIT DIAGRAM
MP3-014
DISPLAY PCB (2) CIRCUIT DIAGRAM
MP2-054
KEYBOARD CIRCUIT DIAGRAM
MP3-048
P.S.U. PCB CIRCUIT DIAGRAM
MP3-026
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TABLES LIST Page TABLE 1
ERROR NUMBER ALLOCATIONS
22
TABLE 2
WARM UP MODES DATA
24
TABLE 3
IDENTIFIER AND LIMITS DATA
27
TABLE 4
APPLICATIONS DATA
30
TABLE 5
SWITCH POSITIONS FOR TABLE SELECTION
33
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MP1 TECHNICAL MANUAL
MECHANICAL DESCRIPTION
Width
482mm
Height 133mm Depth
240mm
Weight 5.3 Kg
CONNECTORS GENERATOR I/O
25 WAY 'D' SKT
LAB I/O BOX
23 WAY CHASSIS PLUG BURNDY UTG0 18-23P
EARTH STUD
6 mm
RS232
9 WAY 'D' PLUG
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MP1 TECHNICAL MANUAL
OVERVIEW The MP1 is a microprocessor controlled control to be used in conjunction with X-ray Generators manufactured by Gulmay Ltd. The can be set to run with a variety of X-ray Tubes and generators by switch selecting different positions in a Tube personality EPROM. The interfaces directly to the generator through one connection. The interfaces to a mains supply distribution unit which can incorporate safety interlocking, cooler interfacing and warning lamps. The design of such a unit is suggested in the LAB I/O BOX circuit and description. This can only be an indication of the capability. GULMAY CANNOT BE RESPONSIBLE FOR INTERPRETING THE PREVAILING SAFETY REQUIREMENTS FOR INSTALLED X-RAY SYSTEMS. Each Generator/X-Ray Tube combination can have up to 4 warm up routines pre programmed at the factory. A real time clock in the MP1 then determines the most suitable, in line with the recommendations of the X-Ray tube manufacturer. The is capable of operating in the following modes:Manual Warm Up Radiographic Fluoro Auto Watt Fluoro Auto Watt
(Front Potentiometers) (Set kV, mA and Time) (Set kV and mA only) (Set kV and Time) (Set kV only)
| | | |
KEYBOARD DATA ENTRY
Additionally the Manual Modes are sub divided into manual versions of the latter four modes ie. Manual Radiographic Manual Fluoro Manual Auto Watt Manual Fluoro Auto Watt There is sufficient memory space to allow programmes of the principal techniques (kV, mA and time) to be stored as follows:Radiographic Fluoro Auto Watt Fluoro Auto Watt
200 locations 200 locations 100 locations 100 locations
All of these programmes are loaded and retrieved by use of the keyboard. Any additional information about the selected focus is also ed. Focus selection is allowed for when the X-ray tube and generator selection permit. The MP1 will limit the mA demand according to the allowed power for the selected focus.
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Bipolar generators and X-Ray Tubes are allowed for in the data tables stored in the MP1. The Generator, when installed as a bipolar signals its status to the MP1. The has an RS232 connector built in. This allows monitoring of the MP1 status at all times. A special mode can be selected which allows for external control of the including initiation and termination and technique selection. Provision is made in the LAB I/O box interface for remote initiation and termination of X-Rays to enable the to be integrated into an automated system. There are two prewarn intervals. The first is always counted and the second is only counted in the event of the safety 2 line being interrupted.
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OPERATING INSTRUCTIONS (SEE FIG 1.0 FOR MP1 LAYOUT) 1/
KEYSWITCH (SW) There are three positions : 1 - NO POWER SWITCHED ON IN UNIT. 2 - MAINS ON 3 - HT ON ENABLE
2/
X-RAY ON (SW) This is a green illuminated push button switch. With the Key switch in position 3 and with all safety circuits closed, the X-RAY ON sequence will be initiated.
3/
X-RAY OFF (SW) This is a red illuminated push button switch. Terminates the X-RAY ON mode at any time. Does not reset the elapsed time display.
4/
MAINS ON (IND) This is a White indicator and is illuminated as soon as the keyswitch is moved to position 2 or 3.
5/
SAFETY (IND) This is a Green indicator that shows (when in the MAINS ON condition) that the safety interlocks and the cooler interlocks are made.
6/
PREWARN (IND) This is a Blue indicator that shows when an X-RAY ON sequence has begun. It extinguishes after the PREWARN period (adjustable up to 30 Seconds) prior to the illumination of the X-RAY ON indicator. A different PREWARN period may be set which is triggered by safety line 2 being interrupted. In this case the processor will choose the longer of the 2 PREWARN times. The PREWARN is factory set to blink at 1Hz, this may be turned off.
7/
X-RAY ON (IND) This is an amber blinking indicator that illuminates at the end of the PREWARN period, it continues to blink at 1 Hz during the X-RAY ON period and after the X-RAY ON period is terminated until the generator output has fallen to 5kV. The blink may be turned off.
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8/
kV CONTROL (POTENTIOMETER) This control is used to pre indicate and control the value of the high voltage output in the manual programming mode. See programming modes.
9/
mA CONTROL (POTENTIOMETER) This control is used to pre indicate and control the value of the output current in two of the manual programming modes. See programming modes.
10/
TIME CONTROL (POTENTIOMETER) This control is used to set the exposure duration in two of the manual programming modes. See programming modes.
11/
AUTO WATT (IND) This indication shows that the output current is being limited to the maximum allowable under the X-Ray tube characteristic. This can occur in the programmed or manual Auto Watt modes or when the operator selects a load current in excess of that allowed by the X- Ray tube and focus combination.
12/
MANUAL (IND) This indication occurs in the manual modes when data is being input by the front controls rather than the keyboard. See programming modes.
13/
FLUORO (IND) This illumination occurs in the fluoro programmed and manual modes. Under this condition exposure time is unlimited and will only be determined by the X-RAY OFF switch. The timer display indicates elapsed time in this condition. See programming modes.
14/
WARM UP (IND) This is illuminated during certain automatic warm up modes. These modes are preselected at switch on depending on the time that the system has been idle. The use of these modes is advisory not compulsory. See programming modes.
15/
BIPOLAR (IND) Some generators are capable of being converted to bipolar operation that doubles the output voltage indication. This is illuminated when such systems are configured. Different power and technique limit factors are programmed for this mode.
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16/
FINE (IND) This is illuminated whenever the Fine/alternate focal spot is successfully selected.
17/
CLEAR (SW) This switch will reset the exposure time to its initial value if the exposure has been terminated, only if the key switch is in position 3. The switch will begin an update sequence for the data stored in a specific programme. The key switch must be in position 2 and some programmes will not have date which you can change, e.g. the warm up routines.
18/
SET (SW) This switch is used when the key switch is in position 2 to set a new programme. After pressing SET a new programme number can be keyed in. Pressing the ENTER button on the Keypad signifies you have finished entering the new programme number. A set of techniques will now be displayed if they have been pre programmed to that number. Pressing CLEAR at this time will allow you to re programme the techniques stored in that programme number.
19/
FOCUS (SW) This is used to select the small focal spot (if available) in an X- RAY tube. This switch is only enabled in the X-RAY OFF condition and with the key switch in position 2. Selecting this feature may cause the POWER LIMIT to be illuminated if the programme calls for a value of current in excess of that allowed for the focus. The mA will automatically be limited to the allowed maximum.
20/
kV DISPLAY This is a 3 Digit 13 mm high LED display. Prior to initiating the X-RAY ON sequence the kV display will show the value of the kV that will be output. This value will be determined by differing factors; a) The kV control setting in manual mode. b) The kV programme setting in programme mode. c) The initial point in warm up mode. The range of display will depend on the tube type selected. At the start of the Prewarn mode the display will be switched to read the actual kV monitor signal and should therefore be zero.
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21/
mA DISPLAY This is a 3 Digit 13mm high LED display, the last digit indicates tenths. Prior to initiating the X-RAY ON sequence the mA display will show the value of the mA that will be output. This value will be determined by differing factors; a) The mA control setting in manual mode. b) The mA programme setting in programme mode. c) The initial point in warm up mode. At the start of the Prewarn mode the display will be switched to read the actual mA monitor signal and should therefore be zero.
22/
TIME DISPLAY This is a 3 Digit 13mm high LED display, the last digit indicates tenths. The display output shows the length of exposure time remaining in decimal minutes. In fluoro modes the display will show elapsed time. In other modes, prior to initiating the X-RAY ON sequence, the display will indicate the exposure time. During the Prewarn mode the display will show the exposure time. After the beginning of the X-RAY ON period and as soon as the generator output is within limits the display will count down. If an exposure is interrupted the time display will be frozen. The exposure may be continued by switching on again or reset by pressing CLEAR and then switching on again.
23/
PROGRAMME/ERROR DISPLAY This is a 3 Digit 13mm high LED display. During normal operation this display will continuously show the selected Programme number. In the event of the programme being terminated by a fault then a 2 digit error code will be displayed preceded by an 'E'. This error code will be cleared by commencing the XRAY ON sequence. Interruption of a safety line will be indicated by the display showing S1 or S2. Advisory codes will be preceded by 'A'. Some processor errors may be preceded by an 'F'. See error number allocations Table 1.
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24/
PROGRAMMING METHOD Pressing SET when the key switch is in position 2 will cause the Programme display to flash. The display will be updated from the right most digit as you key in new numbers. You can continue to key in numbers until the correct 3 are displayed, you signify acceptance by pressing the ENTER button. The other displays will now display the techniques stored under this programme number. You can change these by now pressing CLEAR and updating the 3 displays in the same manner as the programme number. You press ENTER as you reach an acceptable figure and the display will stop flashing and the next one will start to flash. If you key in a number which is outside the specification of the X- Ray tube and/or focal spot then the number you have chosen will be clipped to the maximum allowed. For instance if Programme 233 is loaded as 100kV 30mA 10 min., when the BROAD focus is selected, it will be accepted. If you select FINE the mA will be clipped to say 6.4mA but the programme value will not be altered. If you tried to programme 100kV and 30mA when FINE was selected then the mA would be clipped to 6.4mA and this would be the stored value. If a programme is keyed in with FINE selected it will automatically select FINE when recalled. To select FINE as part of a programme press the Focus select after pressing CLEAR.
25/
PROGRAMMING MODES The programming modes are sub divided according to the first number into groups of 99 programmes. These are subdivided as follows:0xx 002 003 004 005 006 007
MANUAL PROGRAMMES MANUAL RADIOGRAPHIC DITTO MANUAL,FLUORO DITTO MANUAL,AUTO WATT MANUAL,FLUORO,AUTO WATT
1xx 2xx 3xx 4xx 5xx 6xx 7xx 800 9xx
WARM UP PROGRAMMES RADIOGRAPHIC PROGRAMMES MORE RADIOGRAPHIC PROGRAMMES FLUORO PROGRAMMES MORE FLUORO PROGRAMMES AUTO WATT PROGRAMMES FLUORO, AUTO WATT PROGRAMMES RS 232 MODE ENGINEERING TEST MODES.
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(kV, mA & TIME) (kV & mA) (kV & TIME) (kV only)
(kV, mA & TIME) (kV & mA) (kV & TIME) (kV only)
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26/
DIFFERENT X-RAY TUBES Each has an internal PCB socket for a tube personality EPROM that contains range limits tables for one or more focal spots on the supplied tube. This EPROM will also contain auto-warm up tables for the supplied tube. The tube selection EPROM is designated MP1 T Rev xx. To select a different tube and generator combination the switch SW1 must be changed on the U PCB, See Table 4 for Application Data and Table 5 for SW1 Positions.
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INSTALLATION AND INTERFACING REQUIREMENTS INSTALLATION The generator should be installed in accordance with the manufacturers recommendation. The X-Ray tube should be installed in accordance with the manufacturers recommendation. The MP-1 Control should have a suitable (20A rated) earth attached to the 6mm terminal on the rear . The MP-1 should then be connected to the generator and a suitable interface unit. CHECK THAT SW1 ON THE U PCB IS SET FOR THE CORRECT TUBE AND GENERATOR COMBINATION. INTERFACING REQUIREMENTS A suggested circuit for the interface unit (LAB I/O BOX) is shown on drawing MP3-042 and described later in this manual.
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INITIALISING THE MP1 On the C.P.U. Board, set switch bank SW1 to the required setting. 1.
CALIBRATION This procedure should only be required at initial test. The Engineering switch (POS8 on SW1 on the U PCB) must be switched to on to allow calibration. Connect a DVM to the I/O PCB between TP13 (+ lead) and TP11 (- lead), set the DVM to 20V FSD and turn the key to position 2. Press SET & 900 & ENTER, a figure should appear in the kV display window. On older issue PCBs without TP13 the connection is to D38 anode. Hit the CLEAR button. The display should flash. Load the digital number (3 digits no point) into the MP1 that the DVM displays and press ENTER. The DVM should now return to 0V. If a voltage is entered which is less than 7.80 volts and greater than 8.2V then the MP1 will indicate an error E38. After a successful calibration, reset the Engineering switch to off.
2.
PREWARN (NORMAL) Press SET, 901, ENTER Press CLEAR, 50, ENTER
3.
(5 seconds)
PREWARN (SAFETY 2) Press SET, 902, ENTER Press CLEAR, 100, ENTER
4.
(10 seconds)
BUZZER Press SET, 903,ENTER that it is 'ON' to change press CLEAR
press
0 - OFF 1 - ON
Press ENTER 5.
PREWARN FLASH Press SET,904,ENTER that it is 'ON' To change press CLEAR
press
0 - OFF 1 - ON
Press ENTER
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6.
X-RAY ON FLASH Press SET,905,ENTER that it is 'ON' To change press CLEAR
press
0 - OFF 1 - ON
Press ENTER 7.
GENERATOR TYPE Press SET,906,ENTER displays are as expected from switch SW1 setting eg. '' '160' '2'
8.
MAX mA, kV, kW Press SET,907,ENTER displays are as expected from switch SW1 setting eg. '160' '30.0' '3.0'. Pressing the FINE button will display the limits for a smaller focus (if available).
9.
CLOCK HRS/MIN/SEC Press SET,908, ENTER Press CLEAR, HR (0-23),ENTER MIN (0-59),ENTER SEC (0-59),ENTER
10.
CLOCK DAYS/MONTH/YEAR Press SET,909,ENTER Press CLEAR, DAY (1-31),ENTER MTH (1-12),ENTER YR (0-99), ENTER
11.
PROGRAMME REVISION Press SET,910,ENTER The revision number of the programme EPROM will appear in the mA display.
12.
TIME OF LAST USE Press SET,911,ENTER The time that the equipment was last used at 75% of its maximum voltage will be displayed.
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13.
DATE OF LAST USE Press SET,912,ENTER The date that the equipment was last used at 75% of its maximum voltage will be displayed
12.
CUMULATIVE X RAY HOURS Press SET,913,ENTER The total X Ray On time will be displayed as xxx xx.d hours in the mA and Time displays.
13.
WARM UP POWER Press SET,918,ENTER Press CLEAR enter a 3 digit number between 010 and 100 which represents the percent of full power that all warm ups will be run at. Press ENTER
14.
ADVISORY DATE You may set a date which can act as a service reminder. When this date is reached the Code "A1" will flash for 10 seconds at power up in the PROGRAMME/ERROR display. Press SET,920,ENTER Press CLEAR, DAY (1-31), ENTER MTH (1-12),ENTER YR (0-99),ENTER
15.
OFFSET ADJUSTMENT With long interface cables it is possible to accumulate 20mV drops on kV and mA monitor signals. On some systems (320 and 450) this may represent a 1kV meter error. This feature allows you to enter an offset to kV and to mA to counteract the drop. Switch the Engineering switch to on. Measure the voltage drops on the monitor lines and add the offset correction ( between 0 and 99mV) as follows. Press SET,940,ENTER Press CLEAR, kV (0-99mV), ENTER mA (0-99mV),ENTER Switch the Engineering switch to off.
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16.
DATE FORMAT You may set a new date format depending on your national standard or preference. This modified date display will be used in Engineering codes 909, 912 and 920. To check the current standard: Press SET, 941, ENTER. The display will read 1 of 3 ways, STD, ISO or USA. The shipping default is STD. To change the format: Press CLEAR and 0,1 or 2 where they represent the following:Enter 0 1 2
Name STD ISO USA
Format DD/MM/YY YY/MM/DD MM/DD/YY
When dates are entered under Engineering codes 909 or 920 then when CLEAR is pressed the flashing display alternates between the format and the value. 17.
X RAY OFF BUZZER You may require an audible warning of the MP1 changing to the X Ray Off mode. This can occur automatically due to the end of a programmed Radiographic procedure or due to an error in any mode. The normal termination of a Radiographic exposure will be indicated by a 3 second buzzer. The termination of any operation by an error will result in 3 discrete 1 second beeps. This feature may be useful when the control or external warning lights are not easily visible to the operator. To enable this feature: Press SET, 942, ENTER. that it is 'ON' to change press CLEAR
press
0 - OFF 1 - ON
Press ENTER The shipping default is OFF, however if the Programme EPROM is changed from an old version (before 4.4) then this feature will be automatically enabled. Use this procedure to turn it off if it is not desired. 18.
HARDWARE FLOURO INDICATOR The difference between Radiographic (timed exposures) and Fluoroscopic (continuous real time) is indicated by a status LED on the MP1 front . The LED is labelled FLOURO and illuminated in that mode. There can be a need to have a hardware indication of this
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status. This is provided on the U PCB PL2 pin 3. Fluoroscopy would be represented as a high signal (5V) and Radiography by a low (0V). To enable this feature: Press SET,947,ENTER. to change press CLEAR
press
0 - OFF 1 - ON
Press ENTER. The shipping default is OFF. 19.
FILAMENT SELECT LOCK There are some X Ray Tubes available with identical filaments. The Table data programmed by Gulmay allows Warming Up on either spot. It may desirable to prevent customer use of the second focal spot until the first one is worn out or failed. To enable this a filament select lock has been added which is only effective on those tables that allow warming on either spot. To enable this feature: Press,SET,948,ENTER To change : Press,CLEAR ,then 0,1 or 2 as follows Function
Select
Both Allowed Large Only Small Only
0 1 2
Indication 2 L F
Press ENTER. The shipping default is 0. 20.
SYSTEM VOLTAGE LIMIT A feature to limit the operating voltage of a system to a value below the maximum stated in programme 907. The kV is limited to this value and the Warm Up routines finish at this value. If the value is increased the system will automatically select the longest warm up available. This feature may prolong the X ray tube life according to one manufacturer (Comet). IT MUST NOT BE USED TO LIMIT THE VOLTAGE OF A SYSTEM FOR RADIATION PROTECTION REASONS. To set a new value, such as 150:-
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Press, SET, 949, ENTER Press CLEAR,150,ENTER Separate values can be entered for unipolar and bipolar. 21.
FILAMENT LIMIT Modifying the setting of RV1 on the I/O PCB can reduce the Filament limit setting on some types of Generator.
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TABLE 1 :ERROR NUMBER ALLOCATIONS DISPLAY ERRORS
RS232 ERRORS
DESCRIPTION
S1 S2 A1 E1 E2 E3 E4 E5 E6 E7 E8 E9 E10
065 066 129 1 2 3 4 5 6 7 8 9 10
E11 E12 E13 E14 E15 E16 E17 E18 E19 E20 E21 E22 E23 E24 E25 E26
11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27-37 38 40-53 54 55 56 57 58 59 60 61 62
Safety 1 Broken Safety 2 Broken Advisory Code 1 Illegal Programme Code Attempt to Divide by Zero Divide Overflow kV Exceeds Demand mA Exceeds Demand NOT USED NOT USED Programme not Defined for Use Focus Selected, not Returned Bipolar Status Mismatch (Table to Generator Status) Over kV (Generator) Over mA (Generator) Converter Over Current Converter Over Voltage No Cooler Flow Cooler Over Temperature or Pull In Failure kV less than Demand mA less than Demand Generator Not Powered No X-Ray On Status Returned kV Decay greater than 5 Seconds or Drop Out In X Ray On kV Monitor >Min. in X Ray Off mA Monitor >Min. in X Ray Off X ray On Status from Generator illegally NOT USED Calibration voltage out of range NOT USED kV did not exceed 5 X ray OFF signal open at power up X ray terminated by Safety 1 X ray terminated by Safety 2 X ray terminated by Cooler Flow X ray terminated by Cooler Temp Safety or Engaged at power up X ray terminated by Focus change X ray terminated by Bipolar status change
E38 E54 E55 E56 E57 E58 E59 E60 E61 E62
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See System Troubleshooting Manual for further assistance. FATAL ERRORS F1 F2 F3 F4 F5
Programme Eprom Checksum Ram Fault Table Eprom Checksum Watchdog Triggered Background Timing Fault
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TABLE 2 :WARM UP MODES DATA TABLE (EPROM MP1-T REVISION 2.2) TABLE No 1 2 2 3 3 4 4 5 5 6 6 7 8 9 10 11 12 12 13 13 14 14 15 15 16 16 17 18 18 19 19 20 20 21 22 23 24 25 26
BIPOLAR BIPOLAR BIPOLAR BIPOLAR BIPOLAR
BIPOLAR BIPOLAR BIPOLAR BIPOLAR BIPOLAR
BIPOLAR BIPOLAR BIPOLAR
PROGRAM 100 kV mA TIME 100 6.4 11.0 100 30.0 11.0 200 16.0 17.0 100 16.0 11.0 200 16.0 17.0 100 30.0 11.0 200 16.0 17.0 100 16.0 11.0 200 16.0 17.0 100 30.0 15.0 200 16.0 17.0 50 12.0 10.0 50 12.0 10.0 100 3.0 11.0 100 6.4 11.0 50 8.0 10.0 100 6.4 11.0 200 9.0 17.0 100 6.4 11.0 200 16.0 17.0 100 30.0 11.0 200 8.0 17.0 100 16.0 11.0 200 8.0 17.0 100 3.0 11.0 200 8.0 17.0 100 3.0 11.0 100 3.0 11.0 200 8.0 17.0 100 30.0 15.0 200 8.0 17.0 100 16.0 15.0 200 8.0 17.0 50 60.0 11.0 50 32.0 11.0 50 45.0 10.0 80 4.0 13.0 50 3.3 10.0 100 30.0 17.5
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PROGRAM 101 kV mA TIME 100 6.4 35.0 100 30.0 35.0 200 16.0 65.0 100 16.0 35.0 200 16.0 65.0 100 30.0 35.0 200 16.0 65.0 100 16.0 35.0 200 16.0 65.0 100 30.0 55.0 200 16.0 65.0 50 12.0 30.0 50 12.0 30.0 100 3.0 35.0 100 6.4 35.0 50 8.0 30.0 100 6.4 35.0 200 8.0 65.0 100 6.4 35.0 200 16.0 65.0 100 30.0 35.0 200 8.0 65.0 100 16.0 35.0 200 8.0 65.0 100 3.0 35.0 200 8.0 65.0 100 3.0 35.0 100 3.0 35.0 200 8.0 17.0 100 30.0 35.0 200 8.0 65.0 100 16.0 55.0 200 8.0 65.0 50 60.0 35.0 50 32.0 35.0 50 45.0 30.0 80 4.0 90.0 50 3.3 60.0 100 30.0 72.5
NOTE 1 NOTE 2
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TABLE 2 :WARM UP MODES CONTD. (EPROM MP1-T REVISION 2.2) TABLE No
PROGRAM 100 PROGRAM 101 kV mA TIME kV mA TIME 26 BIPOLAR 200 16.0 17.0 200 16.0 65.0 27 100 16.0 17.5 100 16.0 72.5 27 BIPOLAR 200 8.0 17.0 200 8.0 65.0 28 100 10.0 11.0 100 10.0 35.0 29 80 7.5 12.0 80 7.5 40.0 30 80 7.5 10.0 80 7.5 30.0 31 50 10.0 10.0 50 10.0 30.0 32 100 3.0 11.0 100 3.0 35.0 33 100 30.0 17.5 100 30.0 72.5 33 BIPOLAR 200 20.0 27.0 160 20.0 62.0 34 100 16.0 17.5 100 16.0 72.5 34 BIPOLAR 200 20.0 27.0 160 20.0 62.0 35 100 22.5 17.5 100 22.5 72.5 35 BIPOLAR 200 20.0 30.0 160 20.0 68.0 36 100 22.5 17.5 100 22.5 72.5 36 BIPOLAR 210 5.0 15.2 210 5.0 25.3 37 100 16.0 11.0 100 16.0 35.0 37 BIPOLAR 200 8.0 17.0 200 8.0 65.0 38 100 16.0 11.0 100 16.0 35.0 38 BIPOLAR 200 8.0 17.0 200 8.0 65.0 39 100 30.0 11.0 100 30.0 35.0 39 BIPOLAR 200 16.0 17.0 200 16.0 65.0 40 100 30.0 11.0 100 30.0 35.0 40 BIPOLAR 200 8.0 17.0 200 8.0 65.0 41 100 4.8 11.0 100 4.8 35.0 42 100 6.4 17.5 100 6.4 67.5 43 50 30.0 10.0 50 30.0 30.0 44 100 1.6 11.0 100 0.16 35.0 45 100 30.0 17.5 100 30.0 72.5 45 BIPOLAR 200 20.0 20.0 160 20.0 48.0 46 100 30.0 17.5 100 30.0 72.5 46 BIPOLAR 200 16.0 20.0 160 20.0 48.0 47 100 16.0 17.5 100 16.0 72.5 47 BIPOLAR 200 8.0 20.0 160 10.0 48.0 48 100 2.9 17.5 100 2.9 67.5 48 BIPOLAR 200 20.0 27.0 160 20.0 62.0 49 100 2.9 17.5 100 2.9 67.5 50 100 3.2 11.0 100 3.2 35.0 51 100 30.0 11.0 100 30.0 35.0 51 BIPOLAR 200 21.0 17.0 200 21.0 29.0 52 50 30.0 11.0 50 30.0 35.0 TABLE 2 :WARM UP MODES CONTD. (EPROM MP1-T REVISION 2.2) Copyright Gulmay Ltd June 2003 File: MP1MANF.DOC
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TABLE No 53 54 55 56 57 58 59 60 60 61
BIPOLAR
NOTE 1 NOTE 2 NOTE 3
PROGRAM 100 kV mA TIME 50 12.0 15.0 50 12.0 10.0 100 6.4 17.5
PROGRAM 101 kV mA TIME 50 9.0 35.0 50 12.0 30.0 100 6.4 67.5
100 100 100 100 225 50
100 100 100 100 225 50
10.0 10.0 10.0 20.0 5.0 6.0
11.0 11.0 11.0 17.5 15.0 10.0
ADDITIONAL 102 WARM UP ADDITIONAL 102 WARM UP ADDITIONAL 102 WARM UP
Copyright Gulmay Ltd June 2003 File: MP1MANF.DOC
10.0 10.0 10.0 20.0 5.0 6.0
50 50 225
35.0 35.0 35.0 67.5 30.0 30.0
60.0 32.0 5.0
NOTE 3
60.0 60.0 45.0
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TABLE 3:
IDENTIFIER AND LIMITS DATA TABLE (EPROM MP1-T REVISION 2.2) TABLE No. ENG.CODE 906 ENG. CODE 907 GEN.TYPE SEL kV mA POWER 1 FL 160 1 160 10.0 0.64 1 BIPOLAR F3 2 160 2 160 30.0 3.00 2 BIPOLAR 320 2 320 30.0 3.20 3 160 3 160 30.0 1.60 3 BIPOLAR 320 3 320 30.0 3.20 4 160 4 160 30.0 3.00 4 BIPOLAR 320 4 320 30.0 3.20 5 225 5 210 30.0 1.60 5 BIPOLAR 450 5 320 20.0 3.20 6 225 6 210 30.0 3.00 6 BIPOLAR 450 6 320 20.0 3.20 7 FL 100 7 75 12.0 0.60 7 BIPOLAR F3 8 FL 100 8 100 12.0 0.60 8 BIPOLAR F3 9 9 160 3.0 0.32 dµF 160 9 BIPOLAR F3 10 FL2 160 10 160 10.0 0.64 10 BIPOLAR F3 11 FL 100 11 100 8.0 0.48 11 BIPOLAR 12 160 12 160 15.0 0.64 12 BIPOLAR 320 12 320 20.0 1.60 13 160 13 160 15.0 0.64 13 BIPOLAR 320 13 320 30.0 3.20 14 160 14 160 30.0 3.00 14 BIPOLAR 320 14 320 20.0 1.60 15 160 15 160 30.0 1.60 15 BIPOLAR 320 15 320 20.0 1.60 16 160 16 160 3.0 0.32 16 BIPOLAR 320 16 320 20.0 1.60
WARM B B B B B B B B B B B B B
B E
B E B E B B B B B B B
CONTINUED N.B. F3 DENOTES UNDEFINED TABLE N.B. WARM INDICATES WHICH FOCUS A WARM UP IS PERMITTED WITH:B=BROAD E=EITHER
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Contd... TABLE 3:IDENTIFIER AND LIMITS DATA TABLE (EPROM MP1-T REVISION 2.2) TABLE No. ENG.CODE 906 ENG. CODE 907 GEN.TYPE SEL kV mA POWER WARM 17 FL 160 17 160 3.0 0.32 B 17 BIPOLAR F3 18 160 18 160 3.0 0.32 B 18 BIPOLAR 320 18 320 20.0 1.60 B 19 225 19 210 30.0 3.00 B 19 BIPOLAR 450 19 320 20.0 1.60 B 20 225 20 210 30.0 1.60 B 20 BIPOLAR 450 20 320 20.0 1.60 B 21 102 21 100 75.0 3.00 B 21 BIPOLAR F3 22 101 22 100 45.0 1.60 B 22 BIPOLAR F3 23 101 23 100 45.0 3.00 B 23 BIPOLAR F3 24 dµF 160 24 160 4.0 0.32 B 24 BIPOLAR F3 25 dµF 160 25 100 4.0 0.32 B 25 BIPOLAR F3 26 225 26 225 30.0 3.00 B 26 BIPOLAR 450 26 320 20.0 3.20 B 27 225 27 225 30.0 1.60 B 27 BIPOLAR 450 27 320 20.0 1.60 B 28 160 28 160 12.0 1.00 B 28 BIPOLAR F3 29 FL 160 29 150 10.0 0.60 B 29 BIPOLAR F3 30 FL 160 30 130 10.0 0.60 B 31 FL2 160 31 100 10.0 0.60 B 32 225 32 160 3.0 0.32 B 33 225 33 225 30.0 3.00 B 33 BIPOLAR 450 33 420 20.0 4.20 B 34 225 34 225 30.0 1.60 B 34 BIPOLAR 450 34 420 20.0 4.20 B 35 225 35 225 30.0 2.25 B 35 BIPOLAR 450 35 450 20.0 4.20 B N.B. F3 DENOTES UNDEFINED TABLE N.B. WARM INDICATES WHICH FOCUS A WARM UP IS PERMITTED WITH:B=BROAD E=EITHER
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Contd... TABLE 3:IDENTIFIER AND LIMITS DATA TABLE (EPROM MP1-T REVISION 2.2) TABLE No. ENG.CODE 906 ENG. CODE 907 GEN.TYPE SEL kV mA POWER WARM 36 225 36 225 30.0 2.25 B 36 BIPOLAR 450 36 420 20.0 4.20 B 37 160 37 160 30.0 1.60 B 37 BIPOLAR 320 37 320 20.0 1.60 B 38 160 38 160 30.0 1.60 B 38 BIPOLAR 320 38 320 20.0 1.60 B 39 160 39 160 30.0 3.0 B 39 BIPOLAR 320 39 320 30.0 3.20 B 40 160 40 160 30.0 3.00 B 40 BIPOLAR 320 40 320 20.0 1.60 B 41 FL2 160 41 160 8.0 0.48 E 42 FL 225 42 225 7.0 0.64 B 43 160 43 100 30.0 1.50 B 44 dµF 160 44 160 3.0 0.16 B 45 225 45 225 30.0 3.00 B 45 BIPOLAR 450 45 350 20.0 4.2 B 46 225 46 225 30.0 3.00 B 46 BIPOLAR 450 46 350 20.0 3.20 B 47 225 47 225 30.0 1.60 B 47 BIPOLAR 450 47 350 20.0 1.60 B 48 225 48 225 3.0 0.32 B 48 BIPOLAR 450 48 420 20.0 4.20 B 49 FL 225 49 225 3.0 0.32 B 50 dF 160 50 160 3.0 0.32 B 51 160 51 160 30.0 3.00 B 51 BIPOLAR 320 51 320 30.0 4.20 B 52 100 52 100 30.0 3.00 B 53 100 53 100 9.0 0.90 B 54 FL2 100 54 100 12.0 0.64 E 55 FL2 225 55 225 7.0 0.64 B 56 57 FCH 160 57 160 16.0 1.00 B 58 FCH 160 58 160 16.0 1.00 B 59 FCH 160 59 160 16.0 1.00 B 60 225 60 225 20.0 3.00 B 60 BIPOLAR 450 60 450 20.0 4.50 B 61 FL 100 61 100 6.0 0.3 B
N.B. F3 DENOTES UNDEFINED TABLE N.B. WARM INDICATES WHICH FOCUS A WARM UP IS PERMITTED WITH:B=BROAD,E=EITHER Copyright Gulmay Ltd June 2003 File: MP1MANF.DOC
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TABLE 4: APPLICATIONS DATA TABLE No. 1 2 2 BIPOLAR 3 3 BIPOLAR 4 4 BIPOLAR 5 5 BIPOLAR 6 6 BIPOLAR 7 8 9 10 11 12 12 BIPOLAR 13 13 BIPOLAR 14 14 BIPOLAR 15 15 BIPOLAR 16 16 BIPOLAR 17 18 18 BIPOLAR 19 19 BIPOLAR 20 20 BIPOLAR 21 22 23
GENERATOR FL160 160 320 160 320 160 320 225 450 225 450 FL100 FL100 DMF160 FL160-2 FL100 160 320 160 320 160 320 160 320 160 320 FL160 160 320 225 450 225 450 102 101 101
(EPROM MP1-T REVISION 2.2)
X-RAY TUBE TYPE MXR-160/0,4-1,5 MXR-160/0,4-3,0 MXR-320/1,2-3,0 MXR-160/0,4-1,5 MXR-320/1,2-3,0 MXR-161 MXR-320/1,2-3,0 MXR-210/0,4-1,5 MXR-320/1,2-3,0 MXR-210/0,4-3,0 MXR-320/1,2-3,0 CIR-100/0,6 CIR-100/0,6 MXR-160/0,2 MXR-160/0,4-0,4 MCT 120-4A MXR-160/0,4-0,4 MXR-320/0,8-1,8 MXR-160/0,4-0,4 MXR-320/1,2-3,0 MXR-160/0,4-3,0 MXR-320/0,8-1,8 MXR-160/0,4-1,5 MXR-320/0,8-1,8 MXR-160/0,2 MXR-320/0,8-1,8 MXR-160/0,2 MXR-160/0,2 MXR-320/1,2-3,0 MXR-210/0,4-3,0 MXR-320/0,8-1,8 MXR-210/0,4-1,5 MXR-320/0,8-1,8 MXR-160/0,4-3,0 MXR-160/0,4-1,5 MB101/1
Copyright Gulmay Ltd June 2003 File: MP1MANF.DOC
POWER/FOCUS 640W 640W/3000.. 1000W/3200W 640W/1600W 1000W/3200W 3000W 1000W/3200W 640W/1600W 1000W/3200W 640W/3000W 1000W/3200W 600W 600W 320W 640W/640W 480W 640W/640W 640W/1600W 640W/640W 1000W/3200W 640W/3000W 640W/1600W 640W/1600W 640W/1600W 320W 640W/1600W 320W 320W 1000W/3200W 640W/3000W 640W/1600W 640W/1600W 640W/1600W 640W/3000W 640W/1600W 3000W
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TABLE 4: APPLICATIONS DATA TABLE No. 24 25 26 26 BIPOLAR 27 27 BIPOLAR 28 29 30 31 32 33 33 BIPOLAR 34 34 BIPOLAR 35 35 BIPOLAR 36 36 BIPOLAR 37 37 BIPOLAR 38 38 BIPOLAR 39 39 BIPOLAR 40 40 BIPOLAR 41 42 43 44 45 45 BIPOLAR 46 46 BIPOLAR 47 47 BIPOLAR 48 48 BIPOLAR 49 50 51 51 BIPOLAR Contd…..
GENERATOR DMF160 DMF100 225 450 225 450 160 FL160-1 FL160-1 FL160-2 225 225 450 225 450 225 450 225 450 160 320 160 320 160 320 160 320 FL160-2 FL225 160 DMF160 225 450 225 450 225 450 225 450 FL225 DF160 160 320
(EPROM MP1-T REVISION 2.2)
X-RAY TUBE TYPE MBF161/1 MBF161/1 MXR-225/0,4-3,0 MXR-320/1,2-3,0 MXR-225/0,4-1,5 MXR-320/0,8-1,8 MXRP160C CXR150/0,6 CXR150/0,6 CXR 100/0,6 MXR-160/0,2 MXR-225/0,4-3,0 MXR-420/1,5-4,0 MXR-225/0,4-1,5 MXR-420/1,5-4,0 MCN225 MCN451 MCN225 MCN421 MCF160 MCN322 MCN166 MCN322 MCN165 MCN321 MCN167 MCN322 MCN168 MCN225 MCN101 MCN167 MXR-225/0,4-3,0 MXR-350/1,5-4,0 MXR-225/0,4-3,0 MXR-350/1,2-3,0 MXR-225/0,4-1,5 MXR-350/0,8-1,8 MXR-225/0,2 MXR-420/1,5-4,0 MXR-225/0,2 MXR-160/0.2 MXR-160/0,4-3,0 MXR-320/1,5-4,0
Copyright Gulmay Ltd June 2003 File: MP1MANF.DOC
POWER/FOCUS 320W 320W 640W/3000W 1000W/3200W 640W/1600W 640W/1600W 1000W 600W 600W 600W 320W 640W/3000W 1500W/4200W 640W/1500W 1500W/4200W 675W/2250W 900W/4200W 675W/2250W 1260W/4200W 1600W 640W/1600W 640W/1600W 640W/1600W 640W/3000W 960W/3200W 160W/3000W 640W/1600W 480W/480W 640W 640W/1500W 160W 640W/3000W 1500W/4200W 640W/3000W 1000W/3000W 640W/1600W 640W/1600W 320W 1500W/4200W 320W 320W 640W/3000W 1500W/4200W
EDIT
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TABLE 4: APPLICATIONS DATA TABLE No. 52 53 54 55 56 57 58 59 60 60 BIPOLAR 61 62 63
GENERATOR 100 100 FL100-2 FL225-2 NOT USED FC160HP-1 FC160HP-2 FC160HP-2 225 450 FC100-1
(EPROM MP1-T REVISION 2.2)
X-RAY TUBE TYPE MXR-100/3,0 MCT-120/3x3 MXR-160/0,4-0,4 MXR 225/0.4-1.5
POWER/FOCUS 3000W 900W 640W/640W 640W/640W
MXR160HP/20 MXR160HP/20 MXR160/21 MXR225/0.4-3.0 MXR451 MCT100F-1.5x0.5
1000W 1000W/1000W 1000W/640W 3000W/640W 4500W/900W 300W
Copyright Gulmay Ltd June 2003 File: MP1MANF.DOC
NEW
NEW NEW NEW NEW NEW NEW
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TABLE 5: SWITCH POSITIONS FOR TABLE SELECTION SWITCH BANK SW1 ON U PCB
BINARY
POS 6
POS 5
POS 4
POS 3
POS 2
POS 1
1
2
4
8
16
32
ON ON ON ON ON ON ON OFF OFF OFF OFF OFF OFF OFF OFF ON ON ON ON ON
ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON OFF OFF OFF OFF OFF
ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON
OFF ON
OFF ON
ON OFF
OFF
OFF
OFF
TABLE No 1 OFF ON ON 2 ON OFF ON 3 OFF OFF ON 4 ON ON OFF 5 OFF ON OFF 6 ON OFF OFF 7 OFF OFF OFF 8 ON ON ON 9 OFF ON ON 10 ON OFF ON 11 OFF OFF ON 12 ON ON OFF 13 OFF ON OFF 14 ON OFF OFF 15 OFF OFF OFF 16 ON ON ON 17 OFF ON ON 18 ON OFF ON 19 OFF OFF ON 20 ON ON OFF . 31 OFF OFF OFF 32 ON ON ON : 63 OFF OFF OFF NB: SW7 and SW8 Normally OFF PCB EDGE 8 7 6 5 4 3 2 1
OFF ON
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EG. TABLE 2
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ENGINEERING CODE SUMMARY (PROGRAMME EPROM REV 4.7)
900 * 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 940 * 941 942 947 948 949
Calibration Set Normal Prewarn Time Set Safety 2 Prewarn Time Enable Buzzer Select Flashing Prewarn Light Select Flashing X-Ray On Light Display Generator Type and Table Number Display Max. kV, mA and Power (kW) Display/Change Clock Hours, Mins and Seconds Display/Change Clock Day, Month and Year Display Programme EPROM Revision Number Display Time of Last Use (See Note) Display Date of Last Use Display Elapsed X-Ray Hours Special Function Special Function Special Function Special Function Warm Up Power Select Special Function Set an Advisory Date Offset Adjust Date Format Change X Ray Off Buzzer Enable Hardware Fluoro Status Indicator Enable Filament Select Restrictor System Voltage Limit
Note: Time of last use is up dated every warm up or each time a technique exceeds 75% of full scale kV. Codes marked with * require the Engineering switch (POS8 on SW1 on the U PCB) to be set to on. The code numbers do not run in sequence because of the use by other related products.
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RS232 CONNECTIONS AND SETTING
SETTINGS The RS232 interface is set to 9600 baud, 8 bits with 1 start bit and at least 1 stop bit. The most significant bit of the 8 is ignored and no handshake lines or software start/stop protocols are used.
TYPICAL PC CONNECTION
Copyright Gulmay Ltd June 2003 File: MP1MANF.DOC
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RS232 COMMAND SUMMARY : REQUESTS Data request messages are of the form: ?
. Carriage return is denoted by CR. Recognised requests are: V
Requests kV voltage display. Response is ?Vnnn
I
Requests current mA display. Response is ?Innn
The decimal point is omitted.
T
Requests elapsed time. Response is ?Tnnn
. The decimal point is omitted.
P
Requests programme display. Response is ?Pnnn
M
Requests current mode. Response is ?Mnnn
Valid modes are
000 001 002 003 004
Key in position 2 Key in 3 but no X-Ray On Prewarning X-Rays switching on or off X-Ray On andExposure being logged
E
Requests currently displayed errors. Response is Ennn,nnn, nnn,nnn
. There may be no errors.
F
Requests selected focus. Response is F (fine) or B (Broad)
R
Requests programme revision. Response is Rnnn
U
Requests warm up power setting. Response is Unnn
Copyright Gulmay Ltd June 2003 File: MP1MANF.DOC
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RS232 COMMAND SUMMARY : COMMANDS Commands are of the form: !
or !
<3 digit number>
. The MP1 must be in programme 800 and the Key on position 3. (Also the number must be 3 digits ie. 50=050) V
!Vnnn
. Set kV request.
I
!Innn
. Set mA request.
T
!T
. Reset timer.
X
!X
. Initiate X-Ray.
O
!O
. Terminate X-Ray.
F
!F
. Set Fine focus.
B
!B
. Set Broad focus.
Copyright Gulmay Ltd June 2003 File: MP1MANF.DOC
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MP1 TECHNICAL MANUAL
INTERCONNECTION DIAGRAM
DWG No. MP2-003
This drawing details the connections in the MP1. At the top can be seen the three interface connections. The left hand connector, the RS232, is not required for normal operation. The Generator I/O Connector has to be connected via an external cable to the generator. The Lab I/O Box Connector has to be connected via an external cable to the Lab I/O Box. There are four principal circuit boards. I/O PCB
This contains all protection and 24V interface circuitry for the LAB I/O, Generator and RS232 link. All signals are then processed on the U PCB with the exception of the power and front switch connections.
U PCB
This PCB processes all signals from the above mentioned PCB and also interfaces to the DISPLAY PCB.
DISPLAY PCB
This PCB mounts on the inside of the MP1 front and includes the LED displays and the keyboard.
PSU PCB
This PCB rectifies, smoothes and regulates the +24V DC, +5V DC and +12V DC supplies.
The AC supply enters via PL2-B and PL2-C. This supply is fed from a or in the Lab I/O Box which is energised via the key switch SW3A. This of the key switch is closed when the key is in position 2 and 3. SW3B is made when the key switch is in position 3 and it is used to energise the HT or in the Lab I/O Box in conjunction with interlock circuitry on the I/O PCB. SK3 on the I/O PCB is the interface to 220V rated relay s used for switching externally supplied warning lamps. PL2 on the I/O PCB interfaces the 24V signals to the LAB I/O BOX. The RS232 and Generator connectors are mounted directly on the I/O PCB and protrude through the rear of the MP1 enclosure. RV1, 2 and 3 are the manual controls on the front . X-RAY ON and OFF switching is made with either SW1 and 2 on the front or using the remote switches in the LAB I/O BOX (or RS232). LP1 to 4 are the front warning lamps.
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SUGGESTED MP1 INTERFACE CIRCUIT DIAGRAM DWG No.MP3-042 (LAB I/O BOX) The circuit shown here utilises fully the interface options of the MP1 controller. THE CIRCUIT DOES NOT DEFINE A MEANS OF SATISFYING PREVAILING SAFETY REGULATIONS AS THIS IS THE RESPONSIBILITY OF THE INSTALLER OR SYSTEMS INTEGRATOR. The power rating of the AC supply depends on the type of Generator being controlled. That shown implies a 3kW system with allowances for additional power to a cooler, the controller and warning lamps. or K1 is energised when the KEYSWITCH on the is in position 2 and 3. The connection is made via pins D and E. When energised power is switched to the via B and C and also to the cooler and as auxiliary power to the Generator (220V AUX). or K2 is energised via a relay and key switch in the and this is the 220V MAIN supply to the Generator. K2 is energised via pin F and a sense signal is returned as +24V DC via pin H. THIS SUPPLY FEEDS THE EHT PRODUCING PART OF THE GENERATOR. THIS SUPPLY CAN BE ADDITIONALLY INTERLOCKED BY FEEDING TO THE GENERATOR VIA A DOOR SWITCH. A +24V DC feed from the is input at pin G. This can then be returned by safety and cooler interlocks via pins M,N,J and K. These connections must be made to enable the . An external lamp supply is shown as L2 and N2. Separate s are provided by the interface to switch 220V lamps. The PRE WARN s are pins S and T. The HT ON (X-RAY ON) s are pins P and R. There is provision for a bulb fail circuit to interface to the on pins U and V. A link is fitted to the as standard but an option exists to remove this link and open circuit these pins with a relay in the event of bulb failure. The connections for remote X-RAY ON/OFF switching are shown on pins W and X. THE CANNOT BE SWITCHED TO X-RAY ON IF THE REMOTE X-RAY OFF IS OPEN CIRCUIT.
N.B. THE USE OF THIS INTERFACE UNIT DOES NOT GUARANTEE ADHERENCE TO ANY PREVAILING REGULATIONS. OBSERVANCE OF SUCH REGULATIONS IS THE RESPONSIBILITY OF THE INSTALLER.
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I/O PCB CIRCUIT DIAGRAM
DWG No.MP2-020
This drawing is divided into three sheets. SHEET 1 PL2 interfaces to the LAB I/O BOX. SK2 interfaces to the Generator. SK1 interfaces to the U PCB. Safety 1 and 2 are both returned as +24V DC by the safety circuits in the installation via the LAB I/O BOX. Cooler 'TEMP' and 'FLOW' are both returned as +24V DC by the sense circuits in the cooler via the LAB I/O BOX. HT or sense is returned as +24V DC when the HT or is energised in the LAB I/O BOX. All the above signals are clamped by 12V zeners and then they source current into the optodiodes of isolators. The isolator outputs source current from the +5V DC logic supply and are then diode clamped and filtered before being buffered by schmitt inverters which interface the signals directly to the U PCB. The Generator signals in SK2 are all open collector (normally on) signals which pull current from the 'OPTO +12V' supply through the optodiodes of isolators. The isolator outputs are processed in the same way as the interface to the LAB I/O BOX.
SHEET 2 The HT OFF (X-RAY OFF) signal at PL4-15 is normally +24V DC. If either HT OFF switch (front or remote) is depressed this signal will become open circuit and no current will flow into IC8:D-8. In this event a +5V signal will be sent to the U PCB at SK1-27. The AUDIBLE WARNING signal from the U at SK1-20 energises the buzzer BZ1 via IC1:A and IC4:A. The BLINK signal at SK1-15 energises the relay RL1 via IC1:B and IC4:B to switch an external supply to an X-RAY ON warning lamp. This signal is normally switching on and off at 1Hz but may be continuous if the is so set. (See engineering codes) NEW On Issue 3 PCBs the relay RL1 has been replaced by a solid state relay SSR1 and the front HT ON indicator is driven by TR2.
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The PRE WARN signal at SK1-16 energises the relay RL2 via IC1:C and IC4:C to switch an external supply to a PRE WARN lamp. The signal is present prior to the X-RAY ON period. This signal is normally switching on and off at 1Hz but may be continuous. The duration of PRE WARN depends on settings and whether SAFETY-2 has been interrupted. (See engineering modes) On Issue 3 PCBs the relay RL2 has been replaced by solid state relay SSR2 and the front PRE WARN indicator is driven by TR3. The X-RAY ON (CONTROL) signal at SK1-21 does two things. It sends a 12V DC signal to the Generator at SK2-2, this signal is normally routed via LK1 but there is a provision for a remote bulb fail circuit in the LAB I/O Box to switch this line via PL2-7 and 8. The signal also energises the bulb in the X-RAY ON switch on the via IC13:A and TR1 and PL4-2. The INTERLOCK signal does three things. It energises the lamp in the SAFETY indicator via IC1:E, IC4:E and PL4-5. From the same node it also energises RL3 only if the SAFETY-1 line is returned as +24V DC. When RL3 is energised a +12V DC INTERLOCK signal is sent to the Generator via SK2- 8. The KEYSWITCH is connected between PL4-1 and 12. This is the made when the KEYSWITCH is in position 3. Turning the KEY to this position will energise RL4 only if the SAFETY-2 line is returned as +24V DC and the interlock relay RL3 is energised. Energising RL4 will switch on the external HT ON relay in the LAB I/O Box. This will connect the MAIN power to the Generator without which EHT cannot be produced. When RL4 is energised the XRAY OFF switch on the is illuminated via PL4-13 and 14. The X-RAY ON signal is initiated by switching PL2-10 or PL4-3 to +24V DC. The former is remote and the latter is on the . The signal is momentary and its interface circuit is shown on sheet 1 of the drawing. The link between the remote and mounted, normally closed, X-RAY OFF switches is from PL2-9 to PL4-10. When a focus selection is permitted by the X-RAY tube selection and conditions, the signal is input at SK1-17. A low signal to select the FINE focus is buffered by IC13:B, IC4:F and isolated and inverted by IC5:B. A +12V DC signal is sent to the Generator via SK2-11.
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SHEET 3 The RS232 interface connector PL1 is protected by series zeners and is sourced from the U PCB. The three analogue outputs from the are kV-DEMAND, mA-DEMAND and FIL-LIMIT. The first two are sourced from the U PCB and connected to the Generator via SK2-22 and SK2-10. The latter is set by RV1 (MAX=+12V DC) and connected to the Generator via SK2-9. The three analogue inputs from the Generator are mA-MONITOR, kV- MONITOR and the 12V REFERENCE. These are connected to the U PCB. The power from the PSU PCB is input in PL3. The test points, protection zeners and decoupling capacitors are shown. All power for the U PCB is routed from the PSU PCB via the I/O PCB. The outputs to the U PCB are shown in SK1.
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MP1 TECHNICAL MANUAL
U PCB CIRCUIT DIAGRAM
DWG No.MP2-008
SHEET 1 The U PCB has two main connectors, PL4 connects to the DISPLAY PCB and PL1 which connects to the I/O PCB. There are two connectors for future expansion, PL2 and PL3. At the top of Sheet 1 part of PL4 is shown with the power supply from the U PCB to the DISPLAY PCB and the interface to the keyboard. The keys are normally open circuit and their outputs are pulled up by resistor arrays RU1 and RU2. The keys are read by the Parallel Input/Output (PIO) IC, IC12. PL2 is an unused 8 bit port which is for future expansion. Port B of the PIO, IC13, is used for 4 I/O PCB signals:X RAY ON SWITCH AUDIBLE WARNING X RAY ON STATUS X RAY OFF SWITCH
INPUT OUTPUT INPUT INPUT
Port B bit 4 is used to enable the 8 input analogue multiplexer, IC23 on sheet 2 and bits 5,6 and 7 are used to select channels on the same IC. Port A of the PIO, IC14 is used to interface to the I/O PCB with the following signals:COOLER TEMP SAFETY 1 SAFETY 2 X RAY ON (CONTROL) INTERLOCK BROAD/FINE SELECT PRE WARN BLINK
INPUT INPUT INPUT OUTPUT OUTPUT OUTPUT OUTPUT OUTPUT
Port B of the PIO, IC14 is used to interface to the I/O PCB with the following signals:OVER kV INPUT OVER mA INPUT CONVERTER O/CURRENT INPUT CONVERTER O/VOLTAGE INPUT 320/160 STATUS INPUT FINE/BROAD STATUS INPUT HT ON SENSE INPUT COOLER FLOW INPUT
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MP1 TECHNICAL MANUAL
The power on reset circuit for the processor, IC3, comprises R5, D3 and C2. On power up this holds the reset pin IC3-6 low allowing all associated devices to power up before the processor initialises. A 1MHz signal is output at IC3-40 and is labelled E. This is input to IC4 which is a counter configured to divide by 13. This counter output at IC4-11 is the clock for the RS232 and is input to the processor at IC3-10. The processor outputs to the RS232 at IC3-11 and inputs at IC3-12. These are 5V signals which are converted to +/- 12V by the RS232 interface device IC5. The output of IC5 is connected to PL1 on the I/O PCB via PL1 on the U PCB and SK1 on the I/O PCB. IC1:B is a resettable mono stable which if not reset by the processor at IC3-8 will generate a non maskable interrupt at IC3-4 and will reset all the PIO devices at their reset pin (34). This circuit protects the system from problems that may arise through noise or incorrect operation. The programme is designed to continually retrigger IC1. Should this fail for any reason the system will be reset as described in under 20 milliseconds. Port 3 of the processor is the 8 bit data bus multiplexed with the low order address bits. The address bits are decoded by the octal latch IC7 which is controlled by the address strobe signal AS originating from IC3-39. The high order address bits originate from IC3 port 4. The memory devices on the bus are:IC11 PROGRAMME EPROM IC15 TABLE EPROM IC16 RAM IC17 EEPROM (SEE SHEET 2) The READ, WRITE and R/W signals are decoded by IC6. SW1 is the table select switch array, settings are given in the switch position table. SHEET 2 PL3 is uncommitted. It contains power, all the bus signals and two unused chip select signals CS4 and CS5. PL3 allows for additional circuitry to be added in future. IC8 and IC9 are decoder circuits which produce all the various chip select signals. IC18 is a 12 bit A/D converter. The input for IC18 can be one of the 8 inputs to the analogue multiplexer IC23. The output of IC23 is buffered by IC22:D.
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MP1 TECHNICAL MANUAL
IC19 is a dual 12 bit D/A converter. The 2 outputs are buffered by IC20:B and IC20:A. The 2 analogue outputs are kV DEMAND and mA DEMAND. These are output to the I/O PCB at PL1-45 and PL1-44 and also to the multiplexer at IC23-11 and IC23-10. This allows the processor to calibrate the D/A converters. D4 is a reference diode.The reference is buffered (-5V) and fed to IC18-2. The link option is provided as some pin compatible A/D converters contain their own reference circuits. In this case D4 would be omitted and the link changed over. A -10V reference is generated at IC20:D for the D/A converter. A +10V reference is generated at IC20:C for the potentiometers on the DISPLAY PCB. The outputs of the potentiometers are input at PL4 pins 1,2 and 3. They are buffered by IC22:A,B and C and input to the multiplexer IC23. The output of the multiplexer is buffered by IC22:D. Analogue signals from the generator mA , kV and +12V INPUT are connected at PL1 pins 48, 47 and 46. These are buffered and then input to the multiplexer. IC24 is a DC to DC converter which produces a -15V DC power supply for the analogue ICs. IC25 is a REAL TIME CLOCK (RTC) IC. When the main +5V DC supply is powered down this IC is fed from the battery B1. This is charged via R23 when the +5V DC is powered up. TR2 buffers the clock chip select and TR1 is turned off as the +5V DC decays. The RTC contains 64 bytes of battery backed RAM which retains the time of last use and the programme number being used.
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MP1 TECHNICAL MANUAL
DISPLAY PCB CIRCUIT DIAGRAM
DWG No MP3-014
The DISPLAY PCB includes 15 normally open switches that consist of 12 for the numeric keypad and 3 function keys. Connections for the three potentiometers are routed through the main connector SK1. Data from the U PCB is input serially at SK1-35. The 3 digit displays include driver circuitry which also drive the status LEDs LED1 to LED6. The various displays are addressed by the 4 data enable signals.
DISPLAY PCB (2) CIRCUIT DIAGRAM
DWG No MP2-054
On recent units the Display PCB has been changed and divided into a Display PCB and a Keyboard PCB. The Display PCB has the same circuit as previously but now has discrete instead of integrated decoder driver ICs.
KEY BOARD PCB CIRCUIT DIAGRAM
DWG No MP3-048
On recent units the Display PCB has been divided into this PCB and a separate Display PCB. The circuit function is as before.
P.S.U. PCB CIRCUIT DIAGRAM
DWG No MP3-026
The P.S.U. PCB includes 3 regulator ICs which control the +5V DC, +12V DC and +24V DC. This PCB contains the fusing, rectification and smoothing for each supply. An optional power output connector is fitted providing +5V and +24V.
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MP1 TECHNICAL MANUAL
RECOMMENDED SPARE PARTS
DESCRIPTION
PART_No.
FUSE
F002 (20mm 1A A/S)
BULB
H174
P.S.U. PCB
MP2-024
I/O PCB
MP1-018
U PCB
MP1-006
DISPLAY PCB
MP1-012
DISPLAY PCB (2)
MP1-052
KEY BOARD PCB
MP2-046
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MP1 TECHNICAL MANUAL
APPENDIX A:
FAULT DIAGNOSIS
MP1 DIAGNOSTICS BY ERROR CODES E1
This means you have pressed the ENTER button after selecting an illegal programme eg. 801.
E2
A processor divide by zero has occurred. The MP1 will need to be powered off and on to reset.
E3
A processor divide overflow has occurred. The MP1 will need to be powered off and on to reset.
E4
The kV has exceeded demand by 3% or 3 steps. This can be caused by a change in the power supply (220V) if sufficiently large. This may be caused by too fast a rate of change of demand or a fault in the MP1.
E5
The mA has exceeded demand by 3% or 3 steps. This may be caused by too high a filament standby setting.
E6
Not Used.
E7
Not Used.
E8
This error is shown if the key is turned to position 3 with non operational programme selected such as 906.
E9
This error occurs if the Filament status from the Generator does not match your selection.
E10
This error occurs if the bipolar status changes after power up.
E11
This is fed from the generator and means that the kV sense has exceeded the maximum allowable. In Bipolar mode this can show a kV imbalance which may be permanent or indicate a tube arc.
E12
This is fed from the generator and means that the mA sense has exceeded the maximum allowable. THIS IS QUITE COMMON IN THE EVENT OF A TUBE DISCHARGE. In Bipolar mode this can show a mA imbalance
E13
This is fed from the generator and means the current to the high frequency inverter has exceeded the maximum allowable. THIS IS QUITE COMMON IN THE EVENT OF A TUBE DISCHARGE.
E14
This is fed from the generator and means that the voltage to the high frequency inverter has exceeded a maximum level. This can occur if the high voltage multiplier has a damaged diode, consult the repair guide.
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MP1 TECHNICAL MANUAL
E15
The flow switch in the cooler has opened, this will cause the SAFETY to extinguish.
E16
The temperature switch in the cooler has opened, this will cause the SAFETY to extinguish.
E17
The or sense signal is not present whilst an X- Ray On Command is detected. This may be because the key is in the wrong position.
E18
The kV is still less than the demand by 3% or 3 counts after 10 seconds. This may be due to a missing MAIN supply (see error 54) or a converter problem.
E19
The mA is still less than the demand by 3% or 3 counts after 10 seconds. This is most likely caused by too low a limit setting on the filament PCB in the generator.
E20
This is caused by the MP1 not measuring the 12V Reference in the generator. The generator may be completely un-powered or the 25 way interconnect cable may not be connected.
E21
This means that on receipt of an X-Ray ON (Control) signal the generator does not respond with an X-Ray On Status signal becoming true.
E22
This means that the kV took longer than 5 seconds to reduce to 5kV. This normally only occurs when running with a very low filament limit or when using a blanking plug (ie. running the generator open circuit). On bipolar units this threshold has been increased to 10kV (ver. 4.8)
E23
This occurs if the HT or drops out in the X Ray On state. This can also be caused by the operator terminating X Rays by turning the key.
E24
At power up this occurs if a kV Monitor signal is detected that is greater than 5kV. Safety is inhibited.
E25
At power up this occurs if a mA Monitor signal is detected that is greater than 0.5mA. Safety is inhibited.
E26
At power up this occurs if an X-Ray On Status signal is returned from the generator. Safety is inhibited.
E27
Reserved for a special additional module.
E28
Ditto.
E38
This error means that the unit calibration voltage is outside a defined tolerance band. The unit should be recalibrated in accordance with the initialisation procedures in this manual.
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MP1 TECHNICAL MANUAL
The following errors need software programme revision 4.8 or later. E54
This indicates that the kV output did not exceed 5kV and implies a missing MAIN supply (220V) or converter problem.
E55
At power up the X Ray off signal chain is open circuit. This can be caused by the remote X Ray Off signal being open circuit in the LAB I/O interface.
E56
X Rays were terminated by the Safety 1 input being interrupted.
E57
X Rays were terminated by the Safety 2 input being interrupted.
E58
X Rays were terminated by the Cooler Flow (Error 15) input being interrupted.
E59
X Rays were terminated by the Cooler Temperature (Error 16) input being interrupted.
E60
At power up the safety or in the Lab I/O Box was detected as activated.
E61
X Rays were terminated by the Focus status changing (Error 9).
E62
X Rays were terminated by the Bipolar status changing (Error 10).
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MP1 TECHNICAL MANUAL
FATAL ERRORS F1
A check sum error is detected in the programme eprom at power up. This must be a defective EPROM.
F2
The RAM is tested at power up and must be defective.
F3
A check sum error is detected in the tube table EPROM at power up. This is most likely to be due to an incorrect switch setting on the U PCB.
F4
A programme corruption has caused the watchdog timer to trigger. The only option is to turn off power to the MP1 wait 10 seconds and switch back on.
F5
A programme corruption has caused a process to time out, reset as for F4. SAFETY LINES These status signals will probably be caused by the breaking of an external interlock as part of the normal operation of the safety system. The GREEN safety lamp on the front should extinguish.
S1
S1 indicates the lack of a +24V SAFETY 1 signal on the I/O PCB at PL2/1 or a component fault.
S2
S2 indicates the lack of a +24V SAFETY 2 signal on the I/O PCB at PL2/2 or a component fault.
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MP1 TECHNICAL MANUAL
INTERFACE FAULTS
NO PREWARN
When the KEY is in position 3 the X-RAY OFF switch should be illuminated RED. This will be the case only if the SAFETY lamp is illuminated GREEN. If pressing the X-RAY ON switch does not cause the PREWARN lamp to illuminate BLUE (and optionally blink) then one of two interface faults may be to blame. First make sure that the Keyboard buzzer is enabled by selecting programme 903. If the display reads OFF then press CLEAR,1 and ENTER: a: If you press the SET key and a buzz is heard then you know you are in the X-RAY ON enable mode because the processor is detecting a +24V return from the HT or in the LAB I/O connector pin H and so you should suspect the remote X-RAY OFF wire in the LAB I/O connector pin W not being returned as +24V. b: If a buzz is not heard then the processor thinks it is still in programme mode probably because the HT or sense wire is not returning +24V in the LAB I/O connector pin H.
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MP1 TECHNICAL MANUAL
APPENDIX B : REVISION HISTORY OF PROGRAMME EPROM MP1-P
REVISION 2.4 Early production release. Do Not Use ! Problems with LED display dissipation. REVISION 2.9 Replaced 2.4. Fixed problem of LED display reliability and added Enginnering code 918 to set the Warm Up power limit. Fast clock (1 second timer ) added as an option. See Appendix C. REVISION 3.0 Errors corrected in the way the Errors E4,E5,E18 and E19 are calculated. Changes were made to the RS232 routines to prevent the main programme latching up due to excessive serial line traffic. The displays used to blink "88F" at switch on, this was corrected. A/D converter routines changed to prevent mains supply frequency synchronisation. REVISIONS 3.1 AND 3.2 Not released for production. REVISION 3.3 Display stability improved. Advisory code with Engineering switch 920 added. REVISION 3.4 An error in the real time display timer caused a display of "---" after 99.9 minutes. The display now wraps around to zero. An error in the storage routine for elapsed X ray hours (engineering code 913) caused a maximum time of 999.9 hours before resetting to zero. This was fixed to allow a new limit of 65535.9 hours. REVISION 3.5 Not generally released. Customer specific.
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MP1 TECHNICAL MANUAL
REVISION 3.6 The calibration routine was changed so that the internal Engineers switch had to be selected to allow this procedure. (SW8 of SW1 on the U PCB). An Engineering routine 940 was added to correct for small monitor line offsets. See initialisation in this manual. A special programme option was enabled to switch between two unipolar tubes. See appendix C. REVISION 3.7 An error was found in the advisory code calender routines. This caused the advisory code to be erroneously triggered in the month of December. This was fixed. Due to the danger of incorrect operating parameters caused by erroneous calibration a new error was added, E38. If the calibration voltage is outside of a narrow band then this error will prevent operation. REVISION 3.8 A small start up bug was corrected which only had an affect with the table switch suffix versions. REVISION 3.9-4.0 Not released. REVISION 4.1 Changes were made to the programme resolution to allow special Tables to have 2 decimal places on mA and 1 decimal place on kV. this can only be the case for kV maximum under 100 and mA maximum under 10 due to the 3 digit limit. Numbers on the RS232 interface have the same decimal point position as the displays. Warmup ramp times can now exceed 100 minutes. The allowed rundown time for a tube can be changed from 5 seconds by setting a new rundown time in seconds in the tube table. REVISION 4.2 Bug Fix Exponential ramps of longer than 53 minutes. kV dipped back at regular intervals.
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MP1 TECHNICAL MANUAL
REVISION 4.3 Initialisation of LED display blocks moved to avoid display errors on initialisation. Exponential warmup current changed to rise over 10 seconds at start of hold time. REVISION 4.4 Date display in UK,US or ISO formats. Uses engineering code 941 to select.:0 1 2
STD ISO USA
MM/DD/YY YY/MM/DD MM/DD/YY
Date format flashes against digits in date set modes. 3 second buzzer at end of radiographic exposure can be enabled using engineering code 942. Intermittent (3 pulses) buzzer indicates interruption of any X Ray process. SIO interrupt enabled during timer interrupt processing to improve RS232 response and reliability. Input and ouput buffers are 64 characters (no change).
REVISION 4.5 New engineer program 947 enabled and disabled option port bit 7 reflecting exposure status. Fluoroscopy = high, Radiography = low. This Bit is on U PCB PL2-3. From this version some space is used in the battery backed real time clock space to which spot the system was running on. On a system which allows warm up on either spot and the large spot is burnt out then the system would have kept reverting to the large on power up for a warm up. Most of the other modifications in this release were aimed at the case of a tube capable of warming up on either spot. New engineer program 948 allowed spot enable for tubes with warmup on both spots. The purpose of this was to limit the Filament selection on X Ray tubes with the ability to warm up on either focal spot.(Usually identical filaments). Options are :Function Both Allowed Large Only Small Only
Select 0 1 2
Indication 2 L F
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MP1 TECHNICAL MANUAL
A bug causing a flicker in the time display (Engineering code 908) fixed together with a bug in the Advisory display introduced in 4.4 REVISION 4.6 Bug fix for autobrightness believed introduced in 4.1. Bug fix for tube parameter calculation that was introduced in 4.1. This affects voltages over 320kV at Impedances of 1Meg or less. Namely Tables 33B and 34B. Warning was issued not to use Programme revisions between 4.1 and 4.5 with tables 33B and 34B (Bipolar). REVISION 4.7 Comet, the X-Ray tube manufacturers have suggested that it will enhance tube life if the systems are only warmed up to the voltage required rather than the maximum allowed. To this end we have added Engineering Code 949. Using this code the operator can set a new voltage limit for the system. The default value will be 0 which means that the EPROM Table value will not be over ridden. Entering a new value will modify the limit for the system including the warm ups and full scale of the potentiometers and all demanded voltage values. There is a separate store for the Bipolar kV limit. If the limit is increased the unit will “beep” and automatically select the longest warm up available. If the limit is set to the same as the normal warm up start point then the warm up will become unselectable. The warm up times will be modified by the new limit as the ramp rates are maintained. The start points and mA settings for the exponential warm ups are not changed. REVISION 4.8 To prevent E22 errors on 450 units with long interface cables, the threshold for discharge is increased from 5 to 10kV in Bipolar mode. Several new errors (54-62) were added to improve diagnostics.
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MP1 TECHNICAL MANUAL
APPENDIX C : PROGRAMME EPROM OPTIONS We can assemble certain options into the main programme EPROM MP1-P. These are identified by a suffix letter. Engineering code 910 reports on revision status including any suffix. SELECTABLE CLOCK VERSION TYPE 'U' (eg 3.7U) The timer can be switched from 0.1 minute to 1 second resolution. The new maximum time would be 9 Min. 59 Secs. Engineering code 919 is associated and special instructions are available. FAST CLOCK VERSION TYPE 'F' (eg 3.7F) The 1 second timer only is enabled.
TABLE SWITCH VERSION TYPE 'S' (eg 3.7S) This is the programme version that works with a special add in PCB to enable switching between two unipolar tubes. Special instructions are available.
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MP1MANF.PDF
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ISSUE DATE
MP2-003 Sheet of Drawn By: 1
MP0059 MP0031 MP0017 MP0008 CHANGE REF.
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