Isolated, digital input and output (i/o) boards (76 pages)
Summary of Contents for Keithley 7022
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(217) 352-9330 | Click HERE Find the Keithley 7022 at our website:...
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Model 7022 Matrix-Digital I/O Card Instruction Manual A G R E A T E R M E A S U R E O F C O N F I D E N C E Artisan Scientific - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisan-scientific.com...
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WARRANTY Keithley Instruments, Inc. warrants this product to be free from defects in material and workmanship for a period of 1 year from date of shipment. Keithley Instruments, Inc. warrants the following items for 90 days from the date of shipment: probes, cables, rechargeable batteries, diskettes, and documentation.
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Addendum A (Document Number 7022-901-02) ................August 1998 Revision B (Document Number 7022-901-01)..................March 2001 All Keithley product names are trademarks or registered trademarks of Keithley Instruments, Inc. Other brand and product names are trademarks or registered trademarks of their respective holders.
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Keithley products are designed for use with electrical signals that For maximum safety, do not touch the product, test cables, or any are rated Installation Category I and Installation Category II, as de- other instruments while power is applied to the circuit under test.
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Chassis connections must only be used as shield connections for leads, and input jacks, must be purchased from Keithley Instru- measuring circuits, NOT as safety earth ground connections. ments. Standard fuses, with applicable national safety approvals, may be used if the rating and type are the same.
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7022 Matrix-Digital I/O Card ANALOG MATRIX SPECIFICATIONS DIGITAL I/O SPECIFICATIONS MATRIX CONFIGURATION: 5 rows×6 columns. Jumpers can be removed DIGITAL I/O CAPABILITY: 10 independent inputs. 10 independent to isolate any row from the backplane. Rows A–D are connected to the outputs.
Table of Contents General Information Introduction ................................. Features ................................Warranty information............................Manual addenda ..............................Safety symbols and terms ........................... Specifications ..............................Unpacking and inspection ........................... Inspection for damage ..........................Shipping contents ............................Instruction manual............................Repacking for shipment ............................Optional accessories............................Matrix Configuration Introduction .................................
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Two-mainframe system ..........................4-14 Typical digital I/O connection schemes ......................4-16 Output connection schemes........................4-16 Input connection scheme ........................... 4-17 Model 7022 installation and removal ........................ 4-18 Card installation............................4-18 Card removal ............................. 4-18 Models 7022-D and 7022-DT ........................... 4-19 Internal connections...........................
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Service Information Introduction ................................. Handling and cleaning precautions ........................Performance verification............................. Environmental conditions ........................... Recommended equipment........................... Matrix connections............................Channel resistance tests ..........................Offset current tests ............................Contact potential tests ..........................Path isolation tests............................Differential and common-mode isolation tests ................... Channel functionality test ..........................6-10 Special handling of static-sensitive devices......................
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List of Illustrations Matrix Configuration Figure 2-1 Model 7022 simplified schematic ....................... Figure 2-2 Model 7001/7002 analog backplane ......................Figure 2-3 Matrix row connections to backplane ......................Figure 2-4 Single-ended switching example ........................ Figure 2-5 Differential switching example ........................Figure 2-6 Sensing example ............................
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Figure 4-18 Digital input, monitoring micro-switches....................4-17 Figure 4-19 Model 7022 card installation in Model 7001 .................... 4-18 Figure 4-20 Mating the PC-boards..........................4-19 Figure 4-21 Mating connector (solder-side view)......................4-20 Operation Figure 5-1 Model 7001 channel status display......................Figure 5-2 Model 7002 channel status display (slot 1) ....................
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Table 7-1 Relay card for Model 7022, parts list......................Table 7-2 Mass terminated connector card for Model 7022, parts list................ Table 7-3 Model 7011-KIT-R 96-pin female DIN connector kit, parts list ..............Artisan Scientific - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisan-scientific.com...
General Information Introduction Features The Model 7022 has a two-pole, 5 × 6 (five rows by six col- This section contains general information about the Model 7022 matrix-digital I/O card. umns) matrix. It also has ten independent inputs and outputs for digital I/O capabilities.
Model 7022 Instruction Specifications Manual. Model 7022 specifications are found at the front of this man- If an additional instruction manual is required, order the ual. These specifications are exclusive of the mainframe manual package, Keithley part number 7022-901-00. The specifications.
General Information Repacking for shipment Optional accessories Should it become necessary to return the Model 7022 for The following accessories are available for use with the repair, carefully pack the unit in its original packing carton, Model 7022: or the equivalent, and include the following information: Model 7011-MTC-2 ...
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General Information Artisan Scientific - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisan-scientific.com...
Basic matrix configuration (5 × Backplane jumpers A simplified schematic of the Model 7022 matrix is shown in Figure 2-1. The card is configured as a 5 × 6 matrix. Each In Figure 2-1, the four pairs of backplane jumpers shown are of the 30 crosspoints is made up of a two-pole switch.
Figure 2-2. It is through this analog backplane where the from the backplane, and subsequently, any card installed in rows of a Model 7022 card installed in one slot can be con- the adjacent slot. For information on removing the jumpers, nected to the rows (or banks) of a compatible card installed refer to Section 4.
Each terminal of the instrument can be connected to any matrix crosspoint. Columns Optional Shield Source or 7022 Measure Figure 2-4 Single-ended switching example Rows Columns Source or...
SMU connections Figure 2-6 shows how the matrix can be configured to use Figure 2-7 shows how a Keithley Model 236, 237, or 238 instruments that have sensing capability. The main advan- Source Measure Unit could be connected to the matrix. By...
The two cards will due to triggering. be controlled by the same mainframe, but they will be elec- trically isolated from each other. Figure 2-8 shows an exam- ple using two Model 7022 cards. Card 1 Card 2 7022...
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The 4 × 12 matrix is shown in Figure 7002 mainframe. By leaving the backplane jumpers 2-9. installed, matrix rows A through D of the card installed in Card 1 Card 2 7022 7022 Columns Columns 7001/7002 Analog...
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A wide ten-row by six-column matrix is shown in each other. Figure 2-10. For this configuration, the six columns of the two matrices must be physically hard-wired together. Also Card 1 Jumpers 7022 Removed Columns Rows External Column 7001/7002...
For example, you could have a frames together, which provides 360 crosspoints. Also, a 60- Model 7022 matrix-digital I/O card installed in one slot and card matrix is possible by using six Model 7002 mainframes a Model 7011 card installed in the adjacent slot.
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For example, a source connected to rows F, G, H, I, Matrix card #1 (7022 #1) installed in one of the slots of the or J (Figure 2-12) cannot be connected to a column of Model first mainframe (7001/7002 #1) provides a 5 ×...
This section covers the basic digital input and output config- Typically, the digital outputs are used to provide drive for rel- urations for the Model 7022. Connection information for atively high current devices such as solenoids, relays, and these configurations is provided in Section 4 of this manual, small motors.
If you need a higher logic level, you drivers. can place the jumper in the alternate position and apply an external voltage (via V 7022 Jumper 10kΩ gate Logic...
When the resistor is connected to 5V, the channel is pulled high. Thus, with nothing connected to the channel, the input is pulled high to 5V which displays the channel as on. 7022 = Pull-up resistor 10kΩ = Input protection resistor 10kΩ...
The procedures in this section are • Model 7022 installation and removal — Provides a intended only for qualified service per- procedure to install and remove the Model 7022 card sonnel.
The Model 7001/7002 mainframe has an analog backplane that allows the matrix rows of a Model 7022 to be internally 1. If mated together, separate the relay card from the con- connected to a compatible switching card installed in the nector card by removing the mounting screw and then adjacent slot.
Card Connections and Installation CAUTION J201 Failure to set J201 to the Vext posi- tion, when using external pull-up voltages, may result in damage to the output drivers. A plug-in jumper for the bank allows you to select the inter- U203 U201 U202...
Card Connections and Installation Configuring digital I/O output logic Jumper Referring to Figure 4-5 for the digital I/O output logic loca- tion, perform the following steps to configure J101: 1. If mated together, separate the relay card from the con- nector card by removing the mounting screw and then pulling the two cards away from each other.
Card Connections and Installation Keithley has a variety of cable and connector accessories Jumper available to accommodate connections from the connector card to test instrumentation and DUT (devices under test). In general, these accessories, which are summarized in Table 4-1, utilize a round cable assembly for connections.
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32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 View from pin side of connector Channel Schematic Designator Connector Designator Pins of the Model 7022 mass termination connector can be identified in one of three ways: • Matrix row (A-E) or column (1-6). •...
Card Connections and Installation Table 4-2 Pin designation identification Connector Schematic Connector Schematic Connector Schematic Matrix designator designator Matrix designator designator Matrix designator designator terminal 1a-32c 1-96 terminal 1a-32c 1-96 terminal 1a-32c 1-96 row A, HI IN 1 row A, LO 22c IN 2 row B, HI IN 3...
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96-pin female DIN connector. The following con- 7022 is installed in the Model 7001/7002 mainframe and with the mainframe power nection techniques provide some guidelines and suggestions off.
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Card Connections and Installation Wire instrumentation Multi-Pin and DUT to bulkhead connector (See Table 4-2 Connector and Figures 4-8 and 4-10 Card for terminal identification) 7011-MTC-2 cable assembly 7011-MTR bulkhead connector Wire directly to Multi-Pin instrumentation Connector and DUT Card 7011-MTC-2 (Cut in Half) Wire directly to...
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Card Connections and Installation In Figure 4-9A, connections are accomplished using a Model In Figure 4-9C, connections are accomplished using a 7011-MTC-2 cable and a Model 7011-MTR bulkhead con- custom-built cable assembly that consists of a Model 7011- nector. The two-meter round cable is terminated with a 96- KIT-R connector and a suitable round cable.
Typical matrix connection schemes directly to both the external bulkhead connector and the Model 7022. Notice that the bulkhead connector is shown The following information provides some typical connection mounted to a fixture to help keep the cabling stable during schemes for single-card, two-card, and two-mainframe sys- the test.
DUT as shown in the drawing. The the backplane of the mainframe. To connect rows internally, other ends of these cables mate directly to the Model 7022 the backplane row jumpers of both cards must be installed.
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Card Connections and Installation Row A Note: Backplane row jumpers for Instrument both cards must be installed. Row B 7001/7002 #2 Instrument 7011-MTC-2 7022 Cable Assembly Row C (Cut in half to 7022 provide two cables) Instrument Row D Instrument...
(installed in a second main- connector (Model 7011-KIT-R) that will mate to the Model frame) is added. 7022. The unterminated end of the cable is connected directly to instrumentation and DUT. Notice that the row Figure 4-14 shows the connection scheme for the multi-pin connections for the third card are made at the instruments.
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Card Connections and Installation 7011-Kit-R DUT Test Fixture Connector Kit 7001/7002 #2 Trigger Link 7022 Cable 7022 Instrument Trigger Link Cable 7001/7002 #2 Instrument Note: Backplane 7011-MTC-2 Trigger Link 7022 row jumpers for Cable Assembly both cards in 7001/ (Cut in half to...
(closed). The following examples show output connections from the card to external circuitry and summarizes the required inter- 7022 nal connections on the card. Each example assumes negative MOTORS true logic is used. To configure for positive true logic, refer to the Configuring digital I/O output logic paragraph.
Card Connections and Installation Logic device control — Figure 4-17 shows a digital output MICRO- 7022 connection scheme to control a logic device. This example SWITCHES assumes that an internal +5V voltage source is being used. IN 1 IN 2...
7022 card in. Installation or removal of the Model 3. Referring to Figure 4-19, feed the Model 7022 card into 7022 is to be performed by qualified ser- the desired slot so the edges of the relay card ride in the vice personnel.
The Models 7022-D and 7022-DT are alternate configura- screw (see Figure 4-20). tions of the Model 7022 Matrix-Digital I/O Card. The Model 7022 consists of a relay card and a connector card in Input/output connections a sandwich. The configurations are as follows: WARNING •...
Card Connections and Installation Table 4-3 Terminal identification Male D-Sub (Dig I/O) Female D-Sub (Matrix) Signal Signal Signal Signal Vext In 1 Col 3 LO Row E LO Inter Row C HI Out 31 Row B LO Out 34 Col 4 LO Out 37 Col 6 HI Out 40...
Mainframe control of the card • Measurement considerations — Reviews a number of considerations when using the Model 7022 to make The following information pertains to the Model 7022 card. measurements. It assumes you are familiar with the operation of the Model 7001/7002 mainframe.
Operation 7001 Display CARD 1 CARD 2 = Open Channel = Closed Channel Figure 5-1 Model 7001 channel status display Channel assignments The hardware for the digital output channels is user config- urable for negative or positive true logic. That is, depending The Model 7001 has a channel status display (Figure 5-1) on the user configuration, the output can go high or be pulled that provides the real-time state of each available channel.
Operation Closing and opening channels Pressing CLOSE will turn on channel 2!1 and the channels that make up channel pattern M1. Refer to the instruction NOTE manual for the mainframe and for information on defining channel patterns. This procedure applies to matrix channels (channels 1!1 through 1!30) and digital I/O output channels (1!31 through 1!40).
1 through 4 of slot 1 and the channels that make up channel pattern M1: Bus operation is demonstrated using Microsoft QuickBASIC 4.5, the Keithley KPC-488.2 (or Capital Equipment Corpo- PRINT #1, "output 07; *rst" ration) IEEE interface and the HP-style Universal Language PRINT #1, "output 07;...
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Operation The first statement selects the *RST default configuration for Read input channels; slot 9 :SENSe10:DATA? <list> the scan. The second statement sets channel count to the Read input channels; slot 10 :SENSe11:DATA? <list> scan-list-length (5). The third statement defines the scan list, and the last statement takes the mainframe out of the idle The conventional form for the <list>...
Matrix switching examples film, but it can be expanded to test more by simply using additional Model 7022 cards. The Model 7001 accommo- Some applications to test thick film resistor networks and dates two cards. Daisy-chaining six Model 7001s expands transistors are provided in the following paragraphs.
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The effects of thermal EMFs generated by relay contacts and thley Model 230 to source voltage and the Model 2000 to connections can be cancelled by using the offset compen- measure voltage. sated ohms feature of the Model 2000. (The Model 7022 Thick Film Cols Input HI Ω...
EMFs generated by the card. (The Model impedance is shunted across the resistor being measured. 7022 has been designed to keep relay EMF at a minimal The resultant divider resistance is the parallel combination of level.) A matrix crosspoint can generate up to 3µV of thermal the resistor under test and the input impedance.
This system tests two transistors but can be expanded to test tor network and measuring the voltage across each resistor more by simply using additional Model 7022 cards. The element and/or across combined elements. In Figure 5-7, Model 7001 will accommodate two cards. Daisy-chaining...
Output LO Rows SMU #2 Output HI Source I Sense HI Measure V Sense LO Output LO 7022 X = Closed Crosspoint Figure 5-9 DC parameter checks 5-11 Artisan Scientific - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisan-scientific.com...
Measurement considerations Common-emitter characteristic curves A profile of the transistor operating characteristics can be Many measurements made with the Model 7022 are subject obtained by measuring the collector current over a specified to various effects that can seriously affect low-level measure-...
Operation Even when the conductor is stationary, magnetically induced signals may still be a problem. Fields can be produced by various signals such as the AC power line voltage. Large inductors such as power transformers can generate substan- tial magnetic fields, so care must be taken to keep the switch- PATH ing and measuring circuits a good distance away from these potential noise sources.
Figure 5-13 AC frequency response Power line ground loops The AC frequency response of the Model 7022 is important in test systems that switch AC signals. Refer to the specifica- tions at the front of this manual. 5-14...
Handling and cleaning precautions WARNING The information in this section is Because of the high impedance circuits on the Model 7022, intended only for qualified service per- care should be taken when handling or servicing the card to sonnel. Some of the procedures may...
96-pin female DIN connector and then mating formance verification procedures must be performed with it to the connector on the Model 7022. Row and column only one card (the one being checked) installed in the Model shorting connections can also be done at the connector. The 7001/7002 mainframe.
6. Connect INPUT LO and SENSE Ω 4 WIRE LO to the cedure in steps 7 through 13 for rows B, C, D, and E. high (H) terminal of row A. 7. Install the Model 7022 in slot 1 (CARD 1) of the Model 7001/7002. Ω...
(Measure Current) Rows Note: Setup shown is configured to test row A pathways for offset current. Model 7022 Chassis ground is accessible at rear panel of the 7001/7002. Figure 6-2 Common-mode offset current testing Artisan Scientific - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisan-scientific.com...
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FOR CONTINUED PROTECTION AGAINST FIRE HAZARD,REPLACE FUSE WITH SAME TYPE AND RATING. MODEL 6517A (Measure Current) Rows Note: Setup shown is configured to test row A pathways for offset current. Model 7022 Figure 6-3 Differential offset current testing Artisan Scientific - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisan-scientific.com...
Service Information Contact potential tests 7. Install the Model 7022 in the Model 7001/7002 slot 1 and turn on the mainframe. These tests check the EMF generated by each relay contact 8. Allow the Models 7022, 7001/7002, and 182 to warm up pair (H and L) for each pathway.
15. Using Table 6-2 as a guide, repeat the basic procedure in 4. Install the Model 7022 in slot 1 of the Model 7001/7002. steps 9 through 14 for the rest of the path pairs (starting with test 3).
The isolation resistance is then calculated as R = V/I. In the make sure there are no other connections to the card. following procedure, the Model 6517A functions as a volt- 3. Install the Model 7022 in slot 1 of the Model 7001/7002. Model 7025 Banana to Banana Cable...
Service Information WARNING 16. Connect the Model 6517A to row A as shown in Figure 6-7, and repeat steps 6 through 14 to check The following steps use high voltage common-mode isolation. (100V). Be sure to remove power from the circuit before making connection Table 6-3 changes.
FOR CONTINUED PROTECTION AGAINST FIRE HAZARD,REPLACE FUSE WITH SAME TYPE AND RATING. Model 6517A Source V and Measure V/I Rows Unterminated Banana Cables Jumpers (1 of 5) Model 7022 Chassis Ground is accessible at 7001/7002 rear panel Figure 6-7 Common-mode isolation testing Channel functionality test Output Channel Input Channel 1.
The following paragraphs discuss the basic operating princi- mended that they all be treated as static-sensitive. ples for the Model 7022 and can be used as an aid in trouble- shooting the card. The schematic drawings of the card are 1.
Service Information ID data circuits 2. The mainframe sends the ROM address location to be read over the IDDATA line. The ROM then transmits an Upon power-up, card identification information from each acknowledge signal back to the mainframe, and it then card is read by the mainframe.
Service Information Matrix relay control Digital I/O input channel control Card relays are controlled by serial data transmitted via the The mainframe reads digital input channels of the I/O card relay OUTDATA line. A total of five bytes for each card are from a serial, two-byte data stream (via INDATA line).
Service Information Troubleshooting Troubleshooting equipment Table 6-4 summarizes recommended equipment for trouble- WARNING shooting the Model 7022. Lethal voltages are present within the Model 7001/7002 mainframe. Some of Table 6-4 the procedures may expose you to haz- Recommended troubleshooting equipment ardous voltages.
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Service Information Table 6-5 Troubleshooting procedure Step Item/Component Required condition Comments GND pad All voltages referenced to digital ground (GND pad). Q100, pin 2 +6VDC Relay voltage. U101, pin 16 +5VDC Logic voltage. R135 +15VDC Relay bias voltage. Q100, pin 3 +3.5VDC* Regulated relay voltage.
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Service Information 6-16 Artisan Scientific - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisan-scientific.com...
Replaceable Parts Introduction Factory service This section contains replacement parts information, sche- If the card is to be returned to Keithley Instruments for repair, matic diagrams, and component layout drawings for the perform the following: Model 7022. 1. Complete the service form at the back of this manual and include it with the card.
Replaceable Parts Table 7-1 Relay card for Model 7022, parts list Circuit Keithley designation Description part no. 2-56X3/16 PHILLIPS PAN HEAD SCREW 3-56X3/16PPH 2-56X5/8 PHILLIPS PAN HEAD FASTENER (FOR P2001 TO FA-245-1 STANDOFF AND SHIELD) 2-56X7/16 PHILLIPS PAN HEAD SCREW...
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Replaceable Parts Table 7-2 Mass terminated connector card for Model 7022, parts list Circuit Keithley designation Description part no. 2-56X3/16 PHILLIPS PAN HEAD SCREW (FOR SHIELD) 2-56X3/16PPH 2-56X3/8 PHILLIPS PAN HEAD SCREW (FOR BRACKET) 2-56X3/8PPH 2-56X7/16 PHILLIPS PAN HEAD SCREW...
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APPR. C O N N E C T O R B O A R D DIM. TOL. UNLESS OTHERWISE SPECIFIED C A B KEITHLEY INSTRUMENTS INC. XX=+.01 ANG.=+1 7 0 2 2 - 1 7 0 DO NOT SCALE THIS DRAWING CLEVELAND, OHIO 44139 XXX=+.005...
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5-14 Matrix relay power control, 6-13 resistors, Matrix switching examples, Controlling pull-up devices, Measurement considerations, 5-12 Mixing card types, Model 7022 installation and removal, 4-18 Handling and cleaning Models 7022-D and 7022-DT, 4-19 precautions, Multi-pin (mass termination) Handling precautions, 1-2, connector card, Artisan Scientific - Quality Instrumentation ...
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Narrow matrix expansion (4 × 12 Radio frequency interference, 5-13 Thick film resistor network matrix), Reading digital I/O input channels, testing, Reading input channels, Transistor testing, 5-10 Recommended equipment, Troubleshooting, 6-14 Repacking for shipment, Troubleshooting access, 6-14 Replaceable parts, Troubleshooting equipment, 6-14 Troubleshooting procedure, 6-14...
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Service Form Model No. Serial No. Date Name and Telephone No. Company List all control settings, describe problem and check boxes that apply to problem. Intermittent Analog output follows display Particular range or function bad; specify IEEE failure Obvious problem on power-up Batteries and fuses are OK Front panel operational All ranges or functions are bad...
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Specifications are subject to change without notice. All Keithley trademarks and trade names are the property of Keithley Instruments, Inc. All other trademarks and trade names are the property of their respective companies. Keithley Instruments, Inc. 28775 Aurora Road • Cleveland, Ohio 44139 • 440-248-0400 • Fax: 440-248-6168 1-888-KEITHLEY (534-8453) www.keithley.com...
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