Pyramid Technical Consultants I128r5 User manual

I128r5
Ionization Chamber Controller
User Manual
Pyramid Technical Consultants, Inc.
1050 Waltham Street Suite 200, Lexington, MA 02421 USA
US: TEL: [phone]  FAX: [phone]  EMAIL:
[email protected]
Europe: TEL: [phone]

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1 Contents
1 CONTENTS ........................................................................................................................................................ 2
2 FIGURES ............................................................................................................................................................ 6
3 SAFETY INFORMATION ............................................................................................................................... 8
4 MODELS .......................................................................................................................................................... 10
5 SCOPE OF SUPPLY ....................................................................................................................................... 11
6 OPTIONAL ITEMS AND RELATED PRODUCTS .................................................................................... 12
6.1 I
ONIZATION CHAMBERS
.................................................................................................................................. 12
6.2 P
OWER SUPPLIES
............................................................................................................................................ 12
6.3 S
IGNAL CABLES AND CABLE ACCESSORIES
..................................................................................................... 12
6.4 D
ATA CABLES
................................................................................................................................................ 13
6.5 D
IGITAL SIGNALS
........................................................................................................................................... 13
6.6 R
ELAY CONNECTIONS
.................................................................................................................................... 14
7 INTENDED USE AND KEY FEATURES .................................................................................................... 15
7.1 I
NTENDED
U
SE
............................................................................................................................................... 15
7.2 K
EY
F
EATURES
.............................................................................................................................................. 15
7.3 C HANGES IN THE I128 REV 5 ........................................................................................................................... 16
SPECIFICATION ..................................................................................................................................................... 18
8 INSTALLATION ............................................................................................................................................. 25
8.1 M
OUNTING
..................................................................................................................................................... 25
8.2 G
ROUNDING AND POWER SUPPLY
................................................................................................................... 25
8.3 C
ONNECTION TO SIGNAL SOURCE
................................................................................................................... 26
Example setup ...................................................................................................................................... 26
Cables .................................................................................................................................................. 28
Fiber optics .......................................................................................................................................... 29
Signal current path .............................................................................................................................. 29
9 HOW THE I128R5 WORKS AND HOW TO USE IT - AN OVERVIEW ................................................ 31
9.1 M
ULTICHANNEL ELECTROMETER INPUT
(
CHANNELS
1
TO
128) ...................................................................... 31
9.2 I
NTEGRAL PLANE ELECTROMETER INPUT
(
CHANNEL
0 - HCC) ....................................................................... 32
9.3 A
CQUISITION MODES
...................................................................................................................................... 33
9.4 T
RIGGERING
................................................................................................................................................... 34
9.5 S
ELF
-
TESTING AND CALIBRATION
.................................................................................................................. 34
9.6 H
IGH VOLTAGE OUTPUT
................................................................................................................................. 34
9.7 E
NVIRONMENTAL SENSOR INPUT
.................................................................................................................... 35
9.8 G
ENERAL
-
PURPOSE
I/O .................................................................................................................................. 35
9.9 A
CTUATOR CONTROL
..................................................................................................................................... 35
9.10 A
CCELERATOR INTERFACING
.................................................................................................................... 35
9.11 S
AFETY SYSTEM INTERFACING
.................................................................................................................. 36
9.12 F
IBER OPTIC COMMUNICATION INTERFACES
.............................................................................................. 36
9.13 M
ONITOR UNIT OUTPUT
............................................................................................................................. 37
9.14 C
OMMUNICATION TO THE HOST COMPUTER
............................................................................................... 37

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9.15 E
MBEDDED SOFTWARE
.............................................................................................................................. 37
10 GETTING STARTED USING THE PTC DIAGNOSTIC G2 HOST PROGRAM ................................... 38
10.1 I
NSTALLATION
........................................................................................................................................... 38
10.2 C
ONNECTING TO THE
I128
R
5 ..................................................................................................................... 39
10.3 S
CREEN LAYOUT
– T
OP BANNER
................................................................................................................ 43
10.4 S
CREEN LAYOUT
– R
IGHT
-
HAND TABS
...................................................................................................... 44
Data tab .......................................................................................................................................... 44
Data analysis .................................................................................................................................. 46
Device ............................................................................................................................................. 47
Setup ................................................................................................................................................ 51
Calibration ...................................................................................................................................... 54
Real Time Processing ...................................................................................................................... 55
Interlocks......................................................................................................................................... 56
Properties ........................................................................................................................................ 57
10.5 S
CREEN LAYOUT
- G
RAPHIC DISPLAY
........................................................................................................ 58
Strip display .................................................................................................................................... 59
Scope display .................................................................................................................................. 59
Histogram display ........................................................................................................................... 60
Cursor ............................................................................................................................................. 60
Filtering and zero subtraction ........................................................................................................ 60
Data record period.......................................................................................................................... 62
10.6 D
ATA LOGGING
......................................................................................................................................... 63
11 I128R5 CIRCUIT OVERVIEW ..................................................................................................................... 64
11.1 O
VERVIEW
................................................................................................................................................ 64
11.2 F
UNCTIONS
................................................................................................................................................ 65
Signal current inputs ....................................................................................................................... 65
Calibration current switching ......................................................................................................... 65
Analog signals ................................................................................................................................. 65
Digital signals ................................................................................................................................. 65
Compatibility switch ....................................................................................................................... 65
High voltage .................................................................................................................................... 66
Interlocks......................................................................................................................................... 66
A61 .................................................................................................................................................. 66
Secondary FPGA............................................................................................................................. 66
Power supplies ................................................................................................................................ 67
12 HIGH VOLTAGE SUPPLIES ........................................................................................................................ 68
12.1 S
ETTING THE
H
IGH
V
OLTAGE
S
UPPLIES
.................................................................................................... 68
12.2 C
HANGING THE
H
IGH
V
OLTAGE
S
UPPLY
R
ANGE AND
P
OLARITY
.............................................................. 69
13 SAMPLES, LOGGED DATA, INTEGRATION AND AVERAGING ....................................................... 70
13.1 R
EADINGS AND LOGGED DATA
.................................................................................................................. 70
13.2 I
NTEGRATION TIME
.................................................................................................................................... 70
13.3 C
ONVERSIONS PER SAMPLE
....................................................................................................................... 71
13.4 G ENERAL PURPOSE ANALOG INPUTS .......................................................................................................... 72
14 TRIGGERS AND DATA BUFFERING ........................................................................................................ 73
14.1 I
NTERNAL TRIGGER MODE
......................................................................................................................... 73
14.2 D
ATA BUFFERS
.......................................................................................................................................... 73
I128r5 internal buffer...................................................................................................................... 73
PTC DiagnosticG2 buffer ............................................................................................................... 74
14.3 E
XTERNAL TRIGGERING
............................................................................................................................ 74
Custom triggering ........................................................................................................................... 74
Pre-defined trigger modes .............................................................................................................. 77

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Trigger response time ..................................................................................................................... 78
15 Q PULSE OUTPUT ......................................................................................................................................... 79
16 ACTUATOR CONTROL ................................................................................................................................ 80
17 INTERLOCKS AND DIRECT CONTROL LINES ..................................................................................... 81
17.1 P
ROCESS CONTROL OUTPUTS AND INPUTS
................................................................................................. 81
17.2 I
NTERLOCKS
.............................................................................................................................................. 82
Status in/out .................................................................................................................................... 83
18 CONNECTING SLAVE DEVICES ............................................................................................................... 86
19 CALIBRATION ............................................................................................................................................... 87
19.1 C
URRENT CALIBRATION
............................................................................................................................ 87
19.2 O
THER CALIBRATIONS
............................................................................................................................... 87
20 PEAK FITTING ............................................................................................................................................... 88
21 USING THE TRIANGLE GENERATOR TEST BOARD .......................................................................... 89
22 GATE CONNECTIONS .................................................................................................................................. 91
23 I128 REVISION 4 EMULATION .................................................................................................................. 92
24 CONNECTORS ............................................................................................................................................... 93
24.1 F
RONT PANEL CONNECTORS
...................................................................................................................... 93
Monitor output ................................................................................................................................ 93
Environmental sensors .................................................................................................................... 93
General I/O ..................................................................................................................................... 93
Actuator .......................................................................................................................................... 94
HCC: High current input (channel 0) ............................................................................................. 95
Signal inputs (strip inputs) .............................................................................................................. 95
High voltage output and input......................................................................................................... 98
24.2 R
EAR PANEL CONNECTORS
........................................................................................................................ 98
Ethernet communications ................................................................................................................ 98
Fiber-optics ..................................................................................................................................... 98
Status port ....................................................................................................................................... 98
Interlock port .................................................................................................................................. 99
Power input, 24 VDC .................................................................................................................... 100
Ground lug .................................................................................................................................... 100
25 CONTROLS AND INDICATORS ............................................................................................................... 101
25.1 F
RONT PANEL CONTROLS
........................................................................................................................ 101
25.2 R
EAR PANEL CONTROLS
.......................................................................................................................... 101
Reset button ................................................................................................................................... 101
25.3 F
RONT PANEL INDICATORS
...................................................................................................................... 101
Power on ....................................................................................................................................... 101
Safety bypass ................................................................................................................................. 101
HV on ............................................................................................................................................ 101
25.4 R
EAR PANEL INDICATORS
........................................................................................................................ 101
S1 .................................................................................................................................................. 101
S2 .................................................................................................................................................. 101
S3 .................................................................................................................................................. 101
S4 .................................................................................................................................................. 101

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Power up LED sequence ............................................................................................................... 102
RJ-45 indicators ............................................................................................................................ 102
26 COMMUNICATIONS INTERFACES ........................................................................................................ 103
26.1 E
THERNET
............................................................................................................................................... 103
26.2 W
EB SERVER
........................................................................................................................................... 103
26.3 F
IBER OPTICS
........................................................................................................................................... 104
27 USING THE I128R5 ON A NETWORK ..................................................................................................... 105
27.1 N
ETWORK CONFIGURATIONS
................................................................................................................... 105
27.2 R
ECOVERY FROM UNKNOWN
IP
ADDRESS
............................................................................................... 106
27.3 S
YSTEM LOG ADDRESS
............................................................................................................................ 107
28 IG2 AND EPICS INTERFACE .................................................................................................................... 108
28.1 W
HAT IS
EPICS? ..................................................................................................................................... 108
28.2 I
NSTALLING AND
C
ONFIGURING
IG2 ....................................................................................................... 109
29 FAULT-FINDING ......................................................................................................................................... 112
30 MAINTENANCE ........................................................................................................................................... 117
30.1 C
OOLING FAN MAINTENANCE
.................................................................................................................. 117
30.2 C
ALIBRATION
.......................................................................................................................................... 118
31 RETURNS PROCEDURE ............................................................................................................................ 119
32 SUPPORT ....................................................................................................................................................... 120
33 DISPOSAL ...................................................................................................................................................... 121
34 DECLARATION OF CONFORMITY ........................................................................................................ 122
35 REVISION HISTORY................................................................................................................................... 123

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2 Figures
Figure 1. Redel PAG two-pin power connector ...................................................................................................... 12
Figure 2. Fiber optic cables ST bayonet terminated ............................................................................................... 13
Figure 3. X22 Bi-directional fiber optic / TTL converter ....................................................................................... 14
Figure 4. Summary of control signal changes introduced in the revision 5 I128 ................................................ 17
Figure 5. I128 rev5 front and rear panels. Dimensions mm. ............................................................................... 23
Figure 6. I128 rev 5 case plan and side views. Dimensions mm. .......................................................................... 24
Figure 7. Schematic example: I128r5 installation to read out an ionization chamber with strip and integral
plane electrodes ................................................................................................................................................ 27
Figure 8. Connection diagram for an IC128-25LC-2I read out by a pair of I128r5 electrometers ................... 28
Figure 9. Current return path: ionization chamber bias provided by HV module in the I128r5 ...................... 30
Figure 10. Current return path: ionization chamber bias provided separate HV module ................................ 30
Figure 11. ADAS electrometer input (one of 128 identical parallel inputs, ch1 to 128) ..................................... 31
Figure 12. HCC (integral or dose plane, ch0) electrometer input ........................................................................ 33
Figure 13. High voltage loopback arrangement ..................................................................................................... 35
Figure 14. Schematic example: I128r5 control of remote devices ........................................................................ 36
Figure 15. PTC DiagnosticG2 installation .............................................................................................................. 39
Figure 16. Direct Ethernet connection. ................................................................................................................... 40
Figure 17. Configuring the IP address on the host computer. .............................................................................. 40
Figure 18. Ping test of the Ethernet connection. .................................................................................................... 41
Figure 19. Discover devices in progress .................................................................................................................. 42
Figure 20. Ready to connect to the I128r5 .............................................................................................................. 42
Figure 21. Opening the I128r5 window .................................................................................................................. 43
Figure 22. HCC plot displayed, strip chart mode .................................................................................................. 45
Figure 23. Data analysis display – I128r5 and PTC DiagnosticG2 calculations.................................................. 46
Figure 24. IC Device Support ................................................................................................................................... 47
Figure 25. Pixelated device setup screen .................................................................................................................. 48
Figure 26. Measured parameters from pixelated data ........................................................................................... 49
Figure 27. Pixelated Display Options ....................................................................................................................... 50
Figure 28. MLFC setup ............................................................................................................................................. 51
Figure 29. MLFC Energy Display ............................................................................................................................ 51
Figure 30. Setup - Measuring sub-tab ................................................................................................................... 52
Figure 31. Setup - Trigger sub-tab ........................................................................................................................ 53
Figure 32. Setup - HCC sub-tab ............................................................................................................................ 53
Figure 33. Calibration source control ..................................................................................................................... 54
Figure 34. Current input calibrations ..................................................................................................................... 55
Figure 35. Real time processing controls ................................................................................................................ 55
Figure 36. Interlock test functions ........................................................................................................................... 56
Figure 37. Firmware versions .................................................................................................................................. 57
Figure 38. Communication settings ......................................................................................................................... 58
Figure 39. IP Configuration control ........................................................................................................................ 58
Figure 40. Scope mode capture of a pulse............................................................................................................... 59
Figure 41. Strip chart data display showing cursor. .............................................................................................. 60
Figure 42. Increasing the low pass filtering of the displayed data. ....................................................................... 61
Figure 43. Zero correction of displayed data ......................................................................................................... 62
Figure 44. Data record period options .................................................................................................................... 62
Figure 45. I128r5 overview schematic. .................................................................................................................... 64
Figure 46. High voltage jumper settings ................................................................................................................. 69
Figure 47. Data feed into samples............................................................................................................................ 71
Figure 48. Contiguous data number of samples as a function of input data rate ............................................... 74
Figure 49. Signal and trigger used for custom trigger examples .......................................................................... 75
Figure 50. Time-varying signal seen in internal mode .......................................................................................... 76
Figure 51. Time-varying signal seen in custom buffered mode ............................................................................ 76
Figure 52. Using trigger signals and burst size to capture a portion of the signal .............................................. 77

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Figure 53. I128r5 actuator control circuit. ............................................................................................................. 80
Figure 54. Actuator connections for 24 VDC solenoid. ......................................................................................... 80
Figure 55. Interlock relays in series on multiple devices wired for current loop ................................................ 83
Figure 56. Interlock relays in series on multiple devices wired for 24 V logic .................................................... 83
Figure 57. Status opto-coupler input - I128r5 internal circuit. ............................................................................. 84
Figure 58. Safety bypass input - I128r5 internal circuit. ....................................................................................... 84
Figure 59. I128r5 with two M10 general purpose I/O devices connected as slaves on loop 1 ............................ 86
Figure 60. Triangle generator test board ................................................................................................................ 89
Figure 61. Test pattern from triangle generator board using 5V source ............................................................. 90
Figure 62. Time varying signal injected to BNC input of test board.................................................................... 90
Figure 63. Gate passthrough latency: gate in (yellow), gate out (blue) ............................................................... 91
Figure 64. Gate connection to multiple I128r5 units ............................................................................................. 91
Figure 65. Location of revision 4 emulation mode switch .................................................................................... 92
Figure 66. Emulation switch positions .................................................................................................................... 92
Figure 67. Interrogating the I128r5 via a web browser. ...................................................................................... 104
Figure 68. Direct Ethernet connection .................................................................................................................. 105
Figure 69. Connection via switch........................................................................................................................... 106
Figure 70. Network including router .................................................................................................................... 106
Figure 73. Fan filter removal ................................................................................................................................. 117
Figure 74. Fan power connector (2 pin Molex) .................................................................................................... 118

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3 Safety Information
This unit is designed for compliance with harmonized electrical safety standard EN61010-
1:2000. It must be used in accordance with its specifications and operating instructions.
Operators of the unit are expected to be qualified personnel who are aware of electrical safety
issues. The customer’s Responsible Body, as defined in the standard, must ensure that operators
are provided with the appropriate equipment and training.
The unit is designed to make measurements in Measurement Category I as defined in the
standard.
CAUTION. According to installed options, the I128r5 can generate high voltages as follows,
present on the central conductor of the SHV (Safe High Voltage) output connector.:
+ or – 2000 V DC at 0.5 mA maximum.
or
+ or – 1000 V DC at 1.0 mA maximum
or
+ or – 500 V DC at 2.0 mA maximum
The hazardous live voltages on the SHV central conductor are not accessible under the
definitions of EN61010 but may nevertheless give a noticeable shock if misuse were to lead you
to come into contact with them. The user must therefore exercise appropriate caution when
using the device and when connecting cables. Power should be turned off before making any
connections.
The unit must not be operated unless correctly assembled in its case. Protection from high
voltages generated by the device will be impaired if the unit is operated without its case. Only
Service Personnel, as defined in EN61010-1, should attempt to work on the disassembled unit,
and then only under specific instruction from Pyramid Technical Consultants, Inc.
The unit is designed to operate from +24VDC power, with a typical maximum current
requirement of 1000 mA. A suitably rated power supply module is available as an option. Users
who make their own power provision should ensure that the supply cannot source more than
3000 mA.
A safety ground must be securely connected to the ground lug on the case.
Some of the following symbols may be displayed on the unit, and have the indicated meanings.

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Direct current
Earth (ground) terminal
Protective conductor terminal
Frame or chassis terminal
Equipotentiality
Supply ON
Supply OFF
CAUTION – RISK OF ELECTRIC SHOCK
CAUTION – RISK OF DANGER – REFER TO MANUAL

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I128r5 User Manual I128r5_UM_190923 Page 10 of 123
4 Models
I128r5 Ionization chamber controller with 128 electrometer channels, and
one multi-range I-V converter / gated integrator channel.
-XP20/10/5 Add positive 0 to 2000V / 1000 V / 500 V HV output
-XN20/10/5 Add negative 0 to 2000V / 1000 V / 500 V HV output
Example:
I128r5-XP20 I128r5 with 2000V positive high voltage output.