Kaman KDM-8206 User manual

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Copyright © 2014 Kaman Precision Products
PART NO: 860515-001 A Division of Kaman Aerospace Corporation
Last Revised 12/05/14 217 Smith Street
Middletown, CT 06457
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KDM-8206
Non-Contact Displacement Measuring
System
Rack Reference Manual
1/2 Rack Instrumentation Case (3U/42HP)
3/4 Rack Instrumentation Case (3U/63HP)
Full 19" Sub-Rack (3U/84HP)
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Table of Contents
PART 1 INTRODUCTION ...............................................................................................4
PART 2 REAR PANEL CONNECTIONS........................................................................5
PART 3 MEASURING CHANNEL CONNECTIONS.......................................................6
3.1 Back Plane PCB ....................................................................................................6
3.2 Back Panel PCB ....................................................................................................8
PART 4 OPTIONAL DISPLAY MODULE .......................................................................9
PART 5 ENCLOSURES................................................................................................12
5.1 Full 19" Instrumentation Sub-Rack - 3U/84HP ................................................12
5.2 1/2 Rack Instrumentation Enclosure - 3U/42HP ..............................................16
5.3 3/4 Rack Instrumentation Enclosure - 3U/63HP ..............................................21
PART 6 INTEGRAL POWER SUPPLY ........................................................................25
6.1 Power Supply ......................................................................................................25
6.2 Power Entry Module ..........................................................................................26
APPENDIX A REPLACEMENT OR EXPANSION PARTS .........................................27
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List of Figures
Figure 1 Rear Panel I/O...............................................................................................5
Figure 2 Measuring Channel Back Plane PCB, Front View ........................................6
Figure 3 Measuring Channel Back Plane PCB, Rear View .........................................7
Figure 4 Back Panel PCB............................................................................................8
Figure 5 Display Module Front Panel ..........................................................................9
Figure 6 Display Module Back Plane PCB, Front View .............................................10
Figure 7 Display Module Back Plane PCB, Rear View..............................................10
Figure 8 Back Panel P4 Jumper Configuration .........................................................11
Figure 9 Full 19" Sub-Rack Side Outline drawing .....................................................12
Figure 10 Full 19" Sub-Rack Rear / Front Outline drawing .........................................13
Figure 11 Full 19" Sub-Rack Top View Outline Drawing .............................................14
Figure 12 Full 19" Sub-Rack Front/Top with Display...................................................15
Figure 13 1/2 Rack Front View Outline Drawing .........................................................17
Figure 14 1/2 Rack Rear View Outline Drawing ..........................................................18
Figure 15 1/2 Rack Side/Top View Outline Drawing ...................................................19
Figure 16 1/2 Rack Top View With Display .................................................................20
Figure 17 3/4 Rack Front View Outline Drawing .........................................................21
Figure 18 3/4 Rack Rear View Outline Drawing ..........................................................22
Figure 19 3/4 Rack Side/Top View Outline Drawing ...................................................23
Figure 20 3/4 Rack Top View With Display .................................................................24
Figure 21 Power Supply ..............................................................................................26
Figure 22 Power Entry Module ....................................................................................26
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PART 1 -INTRODUCTION
The KDM-8206 is a modular packaging system for Kaman Precision Products’ line of
inductive displacement transducer electronics. The KDM-8206 enclosures integrate
various measuring channels, power supplies, and displays into a coherent application
specific industrial package. Sensors for the measuring channels are available that
measure displacements in the micro inch/nanometer ranges as well as sensors that can
make accurate displacement measurements at up to 1000oF. The KDM-8206 system is
versatile and flexible. This manual is designed to help put it all together for the specific
system you have purchased.
Features:
•Inductive Sensing Technology
•Eurocard/Eurorack packaging
•Up to 12 Measuring Channels per rack system
•Integral power supply
•Single Ended or Differential Output Voltages
•4-20mA outputs
•Optional Multi-channel display
•Optional Multi-rack synchronization
The KDM8206 rack systems are prewired and set up at the factory with all measuring
channels installed. To get started with the 8206 system you will need to:
•Install the sensors in the application or cal fixture
•Connect the sensors to the enclosure (see the Back Panel Connections Section)
•Connect the power cord and turn on the unit
•If you have a display see the Optional Display Panel Section)
As with any complex electronics system you should thoroughly familiarize yourself with
all the manuals dealing with the product. Refer to these manuals for specific
information. Manuals are available on line @ www.kamansensors.com
WARNING:The integral rack power supply utilizes high voltage (120 or 240 VAC).
Unplug the unit before servicing.

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PART 2-REAR PANEL CONNECTIONS
Refer to Figure 1 below. Twin BNC connectors on the bottom row are for connecting
the Sensors to the rack or enclosure. The rack was configured at the factory to enable
the measuring channel to use a single coil or dual coil sensor. If a measuring channel is
being changed from a single coil sensor to a dual coil sensor, it will be necessary to add
an additional RF cable between the measuring channel backplane board and backpanel
board.
Measuring channel output voltages are available on two rows of (isolated from chassis)
BNC connectors on the back panel.
•The upper row (V+) is for single ended outputs.
•The upper (V+) and lower (V-) are used for differential outputs. The lower (V-)
connectors are present only if differential voltage output is specified at time of
order.
Measuring channel output current (4-20 mA) is also available on the back panel through
a terminal block. The plug in terminal block may be unplugged, connected to customer-
supplied wire, and plugged back in.
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Figure 1Rear Panel I/O

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PART 3 -MEASURING CHANNEL CONNECTIONS
Internal wiring for each Measuring Channel in a rack or instrument enclosure is in
modular format. Each Measuring Channel requires:
•A Back Plane PCB to connect to the Measuring Channel
•A Back Panel PCB for sensor input and analog voltage or current output
•A 6 inch interconnecting ribbon cable between back plane and back panel for
output
•Interconnecting 6 inch coaxial cable(s) for sensor input. One cable is required for
a single coil sensor. Two cables are required for a dual coil sensor.
3.1 Back Plane PCB
The Back Plane PCB is installed to the horizontal rails inside the rack and secured with
four screws. A Back Plane PCB is required for each Measuring Channel installed in the
rack. Its purpose is to provide all I/O connections to each Measuring Channel, which
are:
•Sensor connections
•Input power
•Synchronization signal
•Analog output
•Optional Display Module input signals
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Figure 2 Measuring Channel Back Plane PCB, Front View
P2!
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J
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Figure 3 Measuring Channel Back Plane PCB, Rear View
There are two versions of the Back Plane PCB. The Channel 1 version is installed in
the channel 1 position only. The Channel 1 version is not installed if the rack has a
display module, refer to Part 4 of this manual. The Channel 2+ version is installed for
channel 2 and subsequent measuring channels in the rack. Differences between the
two versions are the connectors installed. Connections to the Back Plane PCB are:
•J1 Euro connector to Measuring Channel
•J2 Connects to subsequent Measuring Channel Back Plane PCB.
•JA Sensor input for a single coil sensor. Sensor active coil for a dual coil sensor
•JB Sensor inactive coil for a dual coil sensor. Not connected for a single coil
sensor
•P1 Input DC power. Only present on channel 1 Back Plane PCB
•P2 Connects to previous Measuring Channel Back Plane PCB. Only present on
channel 2+ Back Plane PCB.
•P3 Ribbon cable connector. To Back Panel PCB
•P4 Dual row terminal strip for optional display module. Refer to Part 4 of this
manual.
•SIN Synchronization signal input for optional multi-rack synchronization. Only
present on channel 1 Back Plane PCB
•SOUT Synchronization signal output for optional multi-rack synchronization.
Only present on channel 1 Back Plane PCB
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P1!
P3!
JA!
JB!
SIN!
SOUT!
P4!

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3.2 Back Panel PCB
The Back Panel PCB is installed in the rack just as its name indicates, to the rear panel
of the rack or instrument enclosure. It is secured to the rear panel with three flat head
screws and with the BNC connector nuts. A Back Panel PCB is required for each
Measuring Channel installed in the rack. Its purpose is to provide external I/O
connections for each Measuring Channel and transmit them to the Back Plane PCB.!
Figure 4 Back Panel PCB
Connections to the Back Panel are:
•BNC1 Coaxial V+ connector for single ended and differential voltage output.
•BNC2 Coaxial V- connector for differential voltage output option. Not installed if
this option is not requested.
•JA Sensor connection to Back Plane PCB for a single coil sensor. Sensor active
coil for a dual coil sensor.
•JB Sensor inactive coil connection to Back Plane PCB for a dual coil sensor.
Not connected for a single coil sensor.
•P1 Ribbon cable connector to Back Plane PCB
•SEN Twin BNC sensor connector.
•TB1 Two position terminal block for 4-20 mA current output.
JB!
JA!
P1!
SEN!
TB1!
BNC2!
BNC1!

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PART 4 –OPTIONAL DISPLAY MODULE
The Display Module provides a convenient method to monitor Measuring Channel
output for Sub-Racks and Instrument Enclosures. The Display Module is a two slot
wide panel with an LED display and selector switch. It can display output of a single
Measuring Channel in the rack at a time. The Display Module must be installed in slots
1 and 2 of a rack or instrument enclosure.
The Display Module includes:
•a front panel with a 4-½Digit ±10VDC LED display, a switchboard with a 10-
position switch
•a back plane PCB for DC power and Measuring Channel input
•A ribbon cable connection between front panel and back plane PCB
The Displayed output is the single ended voltage (the difference between V+ and
Ground) of the Measuring Channel selected. For the meter to display differential output
(the difference between V+ and V- Outputs), jumper J7 on the KDM-8206 Measuring
Channel must be changed from positions 1 and 2 to positions 2 and 3 . (Reference the
KDM-8206 System User’s Manual)
Figure!5!!Display!Module!Front!Panel!
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Figure 6Display Module Back Plane PCB, Front View
Figure 7Display Module Back Plane PCB, Rear View
J1!
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P3!
P1!

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For Figures 6 and 7 above, the connections labeled are:
•J1 connects to the back plane PCB of Measuring Channel No. 1
•P1 input DC power from rack power supply
•P3 ribbon cable connection to the front panel display module
To configure the rack enclosure for the Display Module, jumpers need to be set on
terminal strip P4 on the Back Panel PCB of each Measuring Channel. Placement of
jumpers determines the channel on the Display Module where output from that
Measuring Channel is displayed.
The top two rows of P4 are for Channel 1 on the Display Module and are labeled V1+
and V1-. When jumpers are placed on P4 connecting pins A and B of that of the V1+
and V1- rows, output is routed to the Channel 1 (switch) position on the Display Module.
Rows 3 and 4 (V2+ and V2-) are for Channel 2. Rows 5 and 6 (V3+ and V3-) are for
Channel 3.And so on through V10+ and V10- for Channel 10.
Channel 1 is the Measuring Channel adjacent to the Display Module and channels are
numbered in sequence from left to right when viewed from the front of the rack or
instrument enclosure.
Figure 8 Back Panel P4 Jumper Configuration
Figure 8 is a depiction of P4. The left side is a top view showing the row labels. The
right side of Figure 8 shows P4 with jumpers installed for Measuring Channel 1.

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PART 5 -ENCLOSURES
Kaman Precision Products provides three different enclosures for the KDM-8206
Measuring Channels.
5.1 Full 19" Instrumentation Sub-Rack - 3U/84HP
The sub-Rack is a 19" wide frame having solid side panels and horizontal rails across
the top and bottom to hold the Measuring Channels in place. Use of a sub-Rack
enables installation of the KDM-8206 system into a standard 19" test equipment rack.
The sub-Rack normally includes a built in 120VAC/240VAC power supply to provide
±15VDC required by the Measuring Channels. It also can be configured with a display
module that has up to ten selectable inputs.
Part Number Configuration
855859-0XX No display module, 12 available positions
855859-1XX One display module, 10 available positions
855859-2XX No display module, rack to rack Synchronization, 12 available
positions
855859-3XX One display module, rack to rack Synchronization, 10 available
positions
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Figure 9Full 19" Sub-Rack Side Outline drawing

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Figure 10 Full 19" Sub-Rack Rear / Front Outline drawing

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Figure 11 Full 19" Sub-Rack Top View Outline Drawing
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Figure 12 Full 19" Sub-Rack Front/Top with Display

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5.2 1/2 Rack Instrumentation Enclosure -3U/42HP
The 1/2 rack instrument case is a fully enclosed stand-alone enclosure for the KDM-
8206 system with a tilt bar to elevate the front of the case. The instrument case has an
integral 120VAC/240VAC power supply to provide ±15VDC required by the Measuring
Channels.
The instrument case also can be configured with a display module with selectable
inputs.
Part Number Configuration
855861-0XX No display module, 6 available positions
855861-1XX One display module, 4 available positions

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Figure 13 1/2 Rack Front View Outline Drawing

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Figure 14 1/2 Rack Rear View Outline Drawing

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Figure 15 1/2 Rack Side/Top View Outline Drawing

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Figure 16 1/2 Rack Top View With Display