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TMA VXI-27
User Manual
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KEPCO TMA VXI-27 User Manual

OPERATOR’S MANUAL
TMA VXI-27
plug & play POWER MODULE CONTROLLER
INTERACTIVE DIGITALLY CONTROLLED
POWER MODULE SYSTEM
KEPCO INC.
An ISO 9001 Company.
plug & play POWER MODULE
MODEL
TMA VXI-27
CONTROLLER
ORDER NO. REV. NO.
IMPORTANT NOTES:
1) This manual is valid for the following Model and associated serial numbers:
MODEL SERIAL NO. REV. NO.
2) A Change Page may be included at the end of the manual. All applicable changes and revision number changes are documented with reference to the equipment serial num­bers. Before using this Instruction Manual, check your equipment serial number to identify your model. If in doubt, contact your nearest Kepco Representative, or the Kepco Docu­mentation Office in New York, (718) 461-7000, requesting the correct revision for your par­ticular model and serial number.
3) The contents of this manual are protected by copyright. Reproduction of any part can be made only with the specific written permission of Kepco, Inc.
Data subject to change without notice.
KEPCO®
©2007, KEPCO, INC P/N 243-0886R8a
KEPCO, INC. z 131-38 SANFORD AVENUE z FLUSHING, NY. 11352 U.S.A. z TEL (718) 461-7000 z FAX (718) 767-1102
email: hq@kepcopower.com z World Wide Web: http://www.kepcopower.com
THE POWER SUPPLIER™
TABLE OF CONTENTS
SECTION PAGE
SECTION 1 - INTRODUCTION
1.1 Scope of Manual ..................................................................................................................................... 1-1
1.2 General Description................................................................................................................................. 1-1
1.3 Specifications ......................................................................................................................................... 1-2
1.4 TMA VXI-27 Interconnections ................................................................................................................. 1-2
1.5 Accessories ............................................................................................................................................. 1-3
SECTION 2 - INSTALLATION
2.1 Unpacking and Inspection ....................................................................................................................... 2-1
2.2 Installation ............................................................................................................................................... 2-1
2.2.1 VXI Address Select............................................................................................................................ 2-1
2.3 Front Panel Terminations ........................................................................................................................ 2-1
SECTION 3 - OPERATION
3.1 Local Operation....................................................................................................................................... 3-1
3.1.1 Front panel indicators ........................................................................................................................ 3-1
3.1.2 Auxiliary Signals ................................................................................................................................ 3-1
3.1.2.1 Emergency Output Shutdown...................................................................................................... 3-1
3.1.2.2 Discrete Fault Line....................................................................................................................... 3-1
3.1.2.3 +5V Output................................................................................................................................... 3-2
3.2 Remote Operation................................................................................................................................... 3-2
3.3 VXI
3.3.1 Background........................................................................................................................................ 3-2
3.3.2 Driver Installation ............................................................................................................................... 3-2
3.3.3 Operating the Soft Panel ................................................................................................................... 3-3
3.3.3.1 Understanding the Controls. ........................................................................................................ 3-4
3.3.3.2 Select the Channel....................................................................................................................... 3-6
3.3.3.3 Set the Voltage/current................................................................................................................ 3-6
3.3.3.4 Apply Programmed Settings to the Power Supply....................................................................... 3-6
3.3.3.5 Enable the Power Supply Output................................................................................................. 3-6
3.4 VXIbus Communication........................................................................................................................... 3-6
3.4.1 Typical VXIbus Start-up Sequence.................................................................................................... 3-8
3.5 SCPI Programming ................................................................................................................................. 3-8
3.5.1 SCPI Messages................................................................................................................................. 3-8
3.5.2 Common Commands/Queries ........................................................................................................... 3-9
3.5.3 SCPI Subsystem Command/Query Structure.................................................................................... 3-9
3.5.4 Program Message Structure.............................................................................................................. 3-10
3.5.4.1 Keyword....................................................................................................................................... 3-11
3.5.4.2 Keyword Separator ...................................................................................................................... 3-12
3.5.4.3 Query Indicator ............................................................................................................................ 3-12
3.5.4.4 Data ............................................................................................................................................. 3-12
3.5.4.5 Data Separator............................................................................................................................. 3-12
3.5.4.6 Message Unit Separator.............................................................................................................. 3-12
3.5.4.7 Root Specifier .............................................................................................................................. 3-12
3.5.4.8 Message Terminator.................................................................................................................... 3-13
3.5.5 Understanding The Command Structure........................................................................................... 3-13
3.5.6 Addressing Multiple Power Supplies ................................................................................................. 3-14
3.5.7 Understanding The Command Structure........................................................................................... 3-14
3.5.8 Program Message Syntax Summary................................................................................................. 3-15
3.5.9 Status Reporting................................................................................................................................ 3-15
3.5.9.1 STATUS REPORTING STRUCTURE ......................................................................................... 3-16
3.5.9.2 Operational Status Register......................................................................................................... 3-16
3.5.9.3 QUEStionable Status Register..................................................................................................... 3-16
3.5.9.4 Multiple Logical Instruments ........................................................................................................ 3-18
3.5.10 Program Example.............................................................................................................................. 3-19
3.6 CIIL Programming ................................................................................................................................... 3-19
plug&play
Operation........................................................................................................................ 3-2
TMA VXI-27 SVC 101602
i
TABLE OF CONTENTS
SECTION PAGE
3.7 Calibration............................................................................................................................................... 3-19
3.8 Maintenance ........................................................................................................................................... 3-19
APPENDIX A - MS WINDOWS HELP FILES
A-1 Soft Front Panel...................................................................................................................................... 1
A.1.1 Soft Front Panel Overview ............................................................................................................... A-1
A.1.2 Soft Front Panel Controls................................................................................................................. A-1
A.1.2.1 Init ............................................................................................................................................... A-1
A.1.2.2 Channel....................................................................................................................................... A-1
A.1.2.3 Voltage ........................................................................................................................................ A-1
A.1.2.4 Current ........................................................................................................................................ A-1
A.1.2.5 Mode ........................................................................................................................................... A-1
A.1.2.6 Output ......................................................................................................................................... A-1
A.1.2.7 Polarity ........................................................................................................................................ A-1
A.1.2.8 Sys Reset.................................................................................................................................... A-2
A.1.2.9 Chan Reset ................................................................................................................................. A-2
A.1.2.10 Test ............................................................................................................................................. A-2
A-2 LabView Library...................................................................................................................................... 2
A.2.1 LabView Library Overview ................................................................................................................ A-2
A.2.1.1 Instr handle in.............................................................................................................................. A-2
A.2.1.2 Instr handle out ........................................................................................................................... A-2
A.2.1.3 Error in ........................................................................................................................................ A-2
A.2.1.4 Error out ...................................................................................................................................... A-2
A.2.2 LabView Library Functions................................................................................................................ A-3
A.2.2.1 About........................................................................................................................................... A-3
A.2.2.2 AutoCon ...................................................................................................................................... A-3
A.2.2.3 Chanl........................................................................................................................................... A-3
A.2.2.4 Close ........................................................................................................................................... A-3
A.2.2.5 GetStatus .................................................................................................................................... A-3
A.2.2.6 Initialize ....................................................................................................................................... A-4
A.2.2.7 Mode ........................................................................................................................................... A-4
A.2.2.8 Outp ............................................................................................................................................ A-4
A.2.2.9 Read............................................................................................................................................ A-4
A.2.2.10 Reset ........................................................................................................................................... A-5
A.2.2.11 RevisionQuery............................................................................................................................. A-5
A.2.2.12 SelfTest ....................................................................................................................................... A-5
A.2.2.13 Set ............................................................................................................................................... A-5
A.2.2.14 Vers ............................................................................................................................................. A-6
A-6 Knowledge Base..................................................................................................................................... 6
APPENDIX B - SCPI COMMON COMMAND/QUERY DEFINITIONS
B.1 Introduction ............................................................................................................................................. B-1
B.2 *CLS — Clear Status Command .......................................................................................................... B-1
B.3 *ESE — Standard Event Status Enable Command................................................................................ B-1
B.4 *ESE? — Standard Event Status Enable Query..................................................................................... B-1
B.5 *ESR? — Event Status Register Query................................................................................................. B-2
B.6 *IDN? — Identification Query.................................................................................................................. B-2
B.7 *OPC — Operation Complete Command ............................................................................................... B-2
B.8 *OPC? — Operation Complete Query.................................................................................................... B-2
B.9 *OPT? — Options Query ........................................................................................................................ B-3
B.10 *RST — Reset Command....................................................................................................................... B-3
B.11 *SRE — Service Request Enable Command ........................................................................................ B-4
B.12 *SRE? — Service Request Enable Query .............................................................................................. B-4
B.13 *STB? — Status Byte Register Query ................................................................................................... B-4
ii
TMA VXI-27 SVC 101602
TABLE OF CONTENTS
SECTION PAGE
B.14 *TRG — Trigger Command................................................................................................................... B-4
B.15 *TST? — Self Test Query....................................................................................................................... B-4
B.16 *WAI — Wait-to-Continue Command ..................................................................................................... B-5
APPENDIX C - SCPI COMMAND/QUERY DEFINITIONS
C.1 Introduction............................................................................................................................................. C-1
C.2 INITiate[:IMMediate] Command ............................................................................................................. C-1
C.3 INITiate:CONTinuous Command ........................................................................................................... C-1
C.4 INITiate:CONTinuous Query .................................................................................................................. C-2
C.5 INSTrument:CATalog Query .................................................................................................................. C-2
C.6 INSTrument[:NSELect] Command ......................................................................................................... C-2
C.7 INSTrument[:SELect] Command............................................................................................................ C-2
C.8 INSTrument[:SELect]? Query................................................................................................................. C-3
C.9 INSTrument:STATe Command .............................................................................................................. C-3
C.10 MEASure[:SCALar]:CURRent[:DC]? Query ........................................................................................... C-3
C.11 MEASure[:VOLTage][:SCALar][:DC]? Query......................................................................................... C-3
C.12 OUTPut[:STATe] Command................................................................................................................... C-4
C.13 OUTPut[:STATe] Query ......................................................................................................................... C-4
C.14 [SOURce:]CURRent[:LEVel][:IMMediate][:AMPlitude] Command.......................................................... C-4
C.15 [SOURce:]CURRent[:LEVel][:IMMediate][:AMPlitude] Query ................................................................ C-4
C.16 [SOURce:]CURRent:[:LEVel]TRIGgered[:AMPlitude] Command........................................................... C-5
C.17 [SOURce:]CURRent:[:LEVel]TRIGgered[:AMPlitude]? Query ............................................................... C-5
C.18 [SOURce:]VOLTage[:LEVel][:IMMediate][:AMPlitude] Command.......................................................... C-6
C.19 [SOURce:]VOLTage[:LEVel][:IMMediate][:AMPlitude]? Query .............................................................. C-6
C.20 [SOURce:]VOLTage:[:LEVel]TRIGgered[:AMPlitude] Command........................................................... C-6
C.21 [SOURce:]VOLTage:[:LEVel]TRIGgered[:AMPlitude]? Query ............................................................... C-6
C.22 [SOURce:]FUNCtion:MODE Command ................................................................................................. C-7
C.23 STATus:OPERation:CONDition Query................................................................................................... C-7
C.24 STATus:OPEReration:ENABle Command ............................................................................................. C-7
C.25 STATus:OPEReration:ENABle? Query.................................................................................................. C-7
C.26 STATus:OPERation[:EVENt] Query....................................................................................................... C-7
C.27 STATus:PRESet Command ................................................................................................................... C-8
C.28 STATus:QUEStionable[:EVENt]? Query ................................................................................................ C-8
C.29 STATus:QUEStionable:CONDition? Query............................................................................................ C-9
C.30 STATus:QUEStionable:ENABle Command............................................................................................ C-9
C.31 STATus:QUEStionable:ENABle? Query ................................................................................................ C-9
C.32 STATus:QUEStionable:INSTrument? Query.......................................................................................... C-9
C.33 STATus:QUEStionable:INSTrument1? Query........................................................................................ C-10
C.34 STATus:QUEStionable:INSTrument2? Query........................................................................................ C-10
C.35 STATus:QUEStionable:INSTrument:ENABle Command....................................................................... C-10
C.36 STATus:QUEStionable:INSTrument:ENABle Query.............................................................................. C-11
C.37 STATus:QUEStionable:INSTrument1:ENABle Command ..................................................................... C-11
C.38 STATus:QUEStionable:INSTrument1:ENABle? Query .......................................................................... C-11
C.39 STATus:QUEStionable:INSTrument2:ENABle Command ..................................................................... C-11
C.40 STATus:QUEStionable:INSTrument2:ENABle? Query .......................................................................... C-11
C.41 STATus:QUEStionable:INSTrument:ISUM Query.................................................................................. C-11
C.42 STATus:QUEStionable:INSTrument:ISUM:ENABle Command ............................................................. C-11
C.43 STATus:QUEStionable:INSTrument:ISUM:ENABle? Query .................................................................. C-12
C.44 SYSTem:ERRor[:NEXT]? Query............................................................................................................ C-12
C.45 SYSTem:ERRor:CODE? Query ............................................................................................................. C-12
C.46 SYSTem:ERRor:CODE:ALL? Query...................................................................................................... C-12
C.47 SYSTem:LANGuage Command............................................................................................................. C-12
C.48 SYSTem:SET Command ....................................................................................................................... C-13
C.49 SYSTem:VERSion Query....................................................................................................................... C-13
TMA VXI-27 SVC 101602
iii
TABLE OF CONTENTS
SECTION PAGE
APPENDIX D - CIIL COMMAND DEFINITIONS
D-1 Introduction ............................................................................................................................................. 1
APPENDIX E - GLOSSARY OF VXI TERMS
E-1 Introduction............................................................................................................................................. 1
APPENDIX F - SAMPLE PROGRAM
F-1 Introduction ............................................................................................................................................. 1
F-1 Description.............................................................................................................................................. 1
iv
TMA VXI-27 SVC 101602
LIST OF FIGURES
FIGURE TITLE PAGE
1-1 Remotely Controlled Power Supply Configurations Using Kepco Products................................................ viii
1-2 Typical Controller to Power Module Interface ............................................................................................. 1-3
1-3 Mechanical Outline Drawing ....................................................................................................................... 1-4
2-1 VXI Address Select..................................................................................................................................... 2-2
2-2 TMA VXI-27 Front Panel............................................................................................................................. 2-3
3-1 TMA VXI-27 plug&play Directory Structure................................................................................................. 3-3
3-2 TMA VXI-27 3-3 TMA VXI-27 plag&pla
3-4 Tree Diagram of SCPI Commands Used with TMA VXI-27 Controller ....................................................... 3-9
3-5 Message Structure...................................................................................................................................... 3-11
3-6 Status Reporting Structure.......................................................................................................................... 3-17
3-7 Expansion of QUEStionable Register for Multiple Logical Instruments ...................................................... 3-19
B-1 GPIB Commands ....................................................................................................................................... B-3
B-2 Using the *WAIt-to-continue Command ..................................................................................................... B-5
C-1 Use of INSTrument:CATalog Query .......................................................................................................... C-2
C-2 Identifying and Selecting Devices on BITBUS ........................................................................................... C-3
C-3 Programming the Output............................................................................................................................ C-5
C-4 Programming Current ................................................................................................................................ C-6
C-5 Using Status Commands and Queries....................................................................................................... C-8
D-1 FNC — Function Command....................................................................................................................... D-1
D-2 INX — Initiate Op Code Command............................................................................................................ D-2
D-3 FTH — Fetch Command............................................................................................................................ D-2
D-4 SET Command .......................................................................................................................................... D-3
D-5 OPN, CLS — Open, Close Relay Commands ........................................................................................... D-4
D-6 RST — Reset Command ........................................................................................................................... D-4
D-7 CNF, IST — Confidence Test, Internal Self Test Commands.................................................................... D-4
D-8 STA — Status Command........................................................................................................................... D-5
D-9 GAL — Go to Alternate Language Command .......................................................................................... D-6
plug&play Controller Selection ............................................................................................... 3-3
y
panel...................................................................................................................... 3-4
TMA VXI-27 101602
v/(vi Blank)
LIST OF TABLES
TABLE TITLE PAGE
1-1 Specifications ..............................................................................................................................................1-2
1-2 Accessories .................................................................................................................................................1-3
2-1 Input/output Pin Assignments .....................................................................................................................2-3
3-1 Plug&play Panel Controls and Indicators ....................................................................................................3-4
3-2 VXI Bus Commands ....................................................................................................................................3-6
3-3 SCPI Command Index ................................................................................................................................3-10
3-4 Rules Governing Shortform Keywords ........................................................................................................3-11
B-1 IEEE 488.2 Command/query Index ........................................................................................................... B-1
B-2 Standard Event Status Enable Register and Standard Event Status Register Bits ................................... B-1
B-3 Service Request Enable and Status Byte Register Bits ............................................................................. B-4
C-1 SCPI Subsystem Command/query Index ..................................................................................................C-1
C-2 Operation Condition Register, Operation Enable Register,
and Operation Event Register Bits ..........................................................................................................C-7
C-3 Questionable Event Register, Questionable Condition Register
and Questionable Condition Enable Register Bits ..................................................................................C-9
C-4 Questionable Instrument Register 0 Bits ................................................................................................... C-10
C-5 Questionable Instrument Register 1 Bits ................................................................................................... C-10
C-6 Questionable Instrument Register 2 Bits ................................................................................................... C-10
C-7 Error Messages ..........................................................................................................................................C-13
D-1 CIIL Subsystem Command/query Index ....................................................................................................D-1
D-2 CIIL Error Messages ..................................................................................................................................D-5
D-3 CIIL Error Handling Utility Commands .......................................................................................................D-6
TMA VXI -27 101602
vii

FIGURE 1-1. REMOTELY CONTROLLED POWER SUPPLY CONFIGURATIONS USING KEPCO PRODUCTS

viii
TMA VXI -27 101602

1.1 SCOPE OF MANUAL

This service manual contains the specifications and instructions for the installation and opera­tion of the Model TMA VXI-27 Power Module Controller, manufactured by Kepco, Inc. Flushing, N.Y. U.S.A. A parts list and schematic diagrams are located in Section 4

1.2 GENERAL DESCRIPTION

The Kepco model TMA VXI-27 is a Power Module Controller which plugs into a VXI computer chassis and allows the user to program a VXI computer to control and monitor the outputs of up to 27 Kepco power modules (such as “MAT”s, “MBT”'s, “MST”s and “BOP”s) equipped for com­munication via the IEEE 1118 two-wire serial bus (see Figure 1-1). The IEEE 1118 two-wire serial bus, also referred to as the Control Bus, allows the TMA VXI-27 to communicate with the 27 power modules up to a maximum distance of 1000 feet (300 meters).
The TMA VXI-27 includes plug&play software drivers which greatly simplify programming of the power supplies connected to the IEEE 1118 serial bus. This is accomplished through a “soft panel,” a virtual panel that gives the operator access to power supply operating controls and indicators, allowing power supply operation by clicking a mouse on the virtual control, and observing power supply indicators and measured values on a computer monitor.
The TMA VXI-27 communicates with the VXI computer via the VXIbus (an abbreviation for “VMEbus eXtensions for Instrumentation”) which is based on the worldwide VMEbus standard (IEEE STD 1014). The VXI backplane includes the 32-bit VME computer bus as well as high-performance instrumentation buses for precision timing and synchronization between instrument components. (See Appendix E for a Glossary of VXI terms.)

SECTION 1 - INTRODUCTION

The TMA VXI-27 is a Message Based VXI servant interface with Programmable Interrupter capabilities for Event generation, conforming to Specification VXI-1, REV. 1.4. As a Message Based Device it implements all Word Serial Commands required for an I4 class (IEEE 488 com­patible) Instrument (see Table 2-1). It is a Single Width C sized card.
The TMA VXI-27 communicates through the VXI backplane with the Resource Manager (Slot 0 Controller) using commands in either the default language, SCPI (Standard Commands for Pro­grammable Instruments) commands (default), or CIIL (Control Interface Intermediate Lan­guage), the alternate language. The VXI Resource Manager, known as the Slot 0 Controller, is a common resource system module containing the VMEbus Resource Manager and VMEbus System Controller. The Resource Manager provides configuration management services, com­mander/servant mapping, self test and diagnostics.
The VXI Slot 0 Controller can set the output voltage with current limit, or the output current with voltage limit of any one of the 27 KEPCO Power Supplies interconnected through the Control Bus to the TMA VXI-27. It can then program the TMA VXI-27 to read back (through the Control Bus) the actual output voltage and current delivered by each of the power modules to their respective loads. The TMA VXI-27 continually polls all of the power modules on the Control Bus for error flags. All data transmissions between the Slot 0 Controller and the TMA VXI-27 are ASCII encoded. The values for the command parameters can be written in integer, decimal or scientific notation.
TMA VXI-27 101602
1-1
1.3 SPECIFICATIONS (SEE TABLE 1-1)

TABLE 1-1. SPECIFICATIONS

SPECIFICATION DESCRIPTION
Device Type Message-based
Device Substates Initialize, Configure, Normal Operation
Applicable
VXI Commands
Addresses Static, configurable between 1 and 254 using DIP switch (see PAR. 2.2.1).
Manufacturer ID 380410, (0EDCH), read from register 0
Address Space A16, normal handshake only
Programmable Interrupt Generates Request True or Request False events
Interrupt Priority
Capabilities
Input Power Requirement Approximately 2A from +5V backplane of VXI.
Physical Dimensions See Outline Drawing, Figure 1-3.
See Table 3-2.
Software assigned (via Slot 0 Controller) from 0 to 7; 0 = no interrupt (default),1 = highest priority, 7 = lowest priority
Message-based Device with Word Serial Capabilities; VXIbus Instrument Protocol; I4 Class VXI Instrument
1.4 TMA VXI-27 INTERCONNECTIONS
A shielded two (2) wire twisted-pair cable equipped with a 9 pin D-type, male, plug-in connector (supplied) is used to connect the TMA VXI-27 with the power modules. Input power and input/ output signals are provided through the VXI backplane (see Figure 1-2).
An opto-isolated, active high or non-isolated, active low, emergency shutdown input is provided on the 15 pin D-type female connector located on the front pane (see PAR. 3.1.2.1)l. On the same connector 2 additional lines provide a normally open contact indicating the proper func­tioning of the internal microsystem (Discrete Fault line). If either a serious malfunction or a cata­strophic error occurs, the contacts will close (see PAR. 3.1.2.2)
FIGURE 1-1.
1-2
In configurations where power modules are daisy chained on the IEEE 1118 control bus (see Figure 1-2), the last power module control bus outlet (in the daisy chain) must be terminated with the IEEE Control Bus Terminator supplied with the controller to reduce spurious noise and provide proper impedance matching. The terminator supplied is a 9-pin, D-type connector; for Kepco MAT Power Supplies with a round 5 pin connector use the 5 pin terminator listed in Table 1-2.
TMA VXI-27 101602
.

FIGURE 1-2. TYPICAL CONTROLLER TO POWER MODULE INTERFACE

1.5 ACC ESSORIES

Table 1-2 lists the accessories for the TMA VXI-27 Controller.

TABLE 1-2. ACCESSORIES

ACCESSORY PART NUMBER USE NOTE
Cable - two 9-pin connec­tors, ~ 6 ft. (2 m)
15 -Pin Connector
Hood 108-0204
(Amphenol P/N 17-2588-6)
Snap-in 107-0187
Terminator, 9-pin 195-0086 Terminate IEEE 1118 bus daisy chain Supplied Terminator,
5-pin Cable - two 5-pin connectors
Cable - one 5-pin and one 9­pin connector, ~6 ft. (2 m)
118-0844
142-0276
(Amp P/N 205206-1)
(Amp P/N 66504-2)
195-0075 Terminate IEEE 1118 bus daisy chain (for MAT
118-0699
118-0749 Daisy chain TMA VXI-27 and Kepco Power Supplies
Daisy chain TMA 4882-27and Kepco Power Sup­plies with 9-pin connector on IEEE 1118 bus.
Mating Connector for AUXILIARY SIGNALS con­nector
Used with 15-Pin Connector Supplied
Used with 15-Pin Connector Supplied
power supply with 5 pin round connector) Daisy chain Kepco Power Supplies with 5-pin con-
nectors on IEEE 1118 bus.
with 5-pin connector on IEEE 1118 bus.
Supplied
Supplied
Not
supplied
Not
supplied
Not
supplied
Cable - one 5-pin and one 9­pin connector, ~12 ft. (4 m)
Cable - two 9-pin connec­tors, ~ 12 ft. (4 m)
TMA VXI-27 040507 1-3
118-0852
118-0853
Daisy chain TMA VXI-27and Kepco Power Supplies with 5-pin connector on IEEE 1118 bus.
Daisy chain TMA VXI-27and Kepco Power Supplies with 9-pin connector on IEEE 1118 bus.
Not
supplied
Not
supplied

FIGURE 1-3. MECHANICAL OUTLINE DRAWING

1-4
TMA VXI-27 101602

SECTION 2 - INSTALLATION

2.1 UNPACKING AND INSPECTION

The Model TMA VXI-27 has been carefully inspected and tested prior to packing. Inspect the shipping carton immediately upon receipt for evidence of damage during transit. Save the orig­inal packing material. If any indication of damage is found file a claim immediately with the responsible transport service.
For repairs of a product damaged in shipment, contact the Kepco Factory Representative nearest you or the Kepco Customer Service Department directly for further instruction.

2.2 INSTALLATION

The installation and setup procedure for the TMA VXI-27 consists of the following steps:
1. Set the VXI Address Selector (PAR. 2.2.1)
2. Select an empty slot in the C size VXI chassis and remove the slot cover plate.
3. Turn off the power if it is on and slide the TMA VXI-27 module into the chassis with the LEDs up (or to the left in the case of a horizontal chassis). Secure TMA VXI-27 to chassis with self-retaining screws at the top and bottom of the front panel
4. Connect the 9 pin D-type connector located on the front panel to the power modules through the Control Bus in a daisy chain configuration using the control bus cable supplied (see Figure 1-2). For installations that exceed the length of the control bus cable supplied, refer to Table 1-2 for cable specifications; the maximum cable length is 300 meters (1000 feet).
5. Connect Terminator (supplied) to last IEEE 1118 control bus connector in daisy chain (see Figure 1-2). (For Kepco MAT power supplies with 5-pin round connector, use terminator P/ N 195-0075; see Table 1-2.)
NOTE: Terminator must be used even if only one power supply is connected to the Controller
to ensure reduction of spurious noise and proper impedance matching.
6. To use the AUX. SIGNALS connector refer to PAR. 3.1.2 for a description of the available signals and PAR. 2.3 for connector type and pin assignments.
7. Connect all power module outputs to their respective loads.

2.2.1 VXI ADDRESS SELECT

Set the VXI address selector to an unused VXI address between 1 and 254 using DIP switches accessible through the right shield as shown in Figure 2-1. The TMA VXI-27 address is preset to the factory default address of 6.
2.3 FRONT PANEL TERMINATIONS (SEE FIGURE 2-2.)
a. IEEE 1118 (Control Bus) connector. Connections to the control bus are made through the
IEEE 1118 connector, a 9 pin D-type female receptacle. Refer to Table 2-1 for pin assign­ments.
TMA VXI -27 101602
2-1
b. Auxiliary Signals connector. This is a 15 pin D-type female receptacle. Refer to Table 2-1 for
pin assignments.
The DISCRETE FAULT LINE relay has the contacts open if the internal microsystem is functioning normal by monitoring a pulse generated in the timer interrupt routine. If the micro­system is not functioning normally or a catastrophic condition appears on one of the power mod­ules the contacts will close and then reopen when the catastrophic condition disappears and the error buffer has been read (if the Command Language is CIIL) or when the Device Dependent Error from the Event Status Register has been read (if the Command Language is SCPI).
The ISOLATED and NON ISOLATED EMERGENCY SHUT-DOWN INPUTS activates the non-maskable interrupt of the microsystem forcing the microsystem to send a reset to all KEPCO power supplies.
2-2

FIGURE 2-1. VXI ADDRESS SELECT

TMA VXI -27 101602

TABLE 2-1. INPUT/OUTPUT PIN ASSIGNMENTS

CONNECTOR PIN FUNCTION
IEEE 1118
(9-Pin, D-type, female)
AUX. SIGNALS
(15-Pin, D-type, female)
1, 2, 6, 7 Ground
3, 4, 5 IEEE 1118 (2-Wire Differential Interface)
8, 9 IEEE 1118 (2-Wire Differential Interface)
1, 7. 8 Emergency Shut-down - Isolated Input Cathode (–)
2, 5, 6 Emergency Shut-down - Isolated Input Anode (+)
3, 4 +5v Output (Through 390 Ohm)
9, 11 Ground
10 Emergency Shut-down Input - Non Isolated
12, 13 Discrete Fault Line - Relay Contact Pin 1
14, 15 Discrete Fault Line - Relay Contact Pin 2
TMA VXI -27 101602

FIGURE 2-2. TMA VXI-27 FRONT PANEL

2-3/(2-4 Blank)

SECTION 3 - OPERATION

3.1 LOCAL OPERATION

There is no local operation of the TMA VXI-27 controller; however, the controller provides three front panel LEDs (see PAR. 3.1.1) and three auxiliary functions (see PAR.3.1.2) to the user in addition to the remote programming capability described in PAR.’s 3.2 through 3.5.

3.1.1 FRONT PANEL INDICATORS

The TMA VXI-27 is equipped with 3 front panel LEDs which have the following functions: (see Figure 2-2)
a. ONLINE. The top LED (for vertically mounted unit), green colored, indicates that the power is
applied and the internal microsystem is ON LINE. It is turned ON by an output port instruc­tion executed by the internal microprocessor.
b. ACCESS. The middle position LED, green colored, indicates that a VXI ACCESS cycle to
address the module has been executed.
c. FAILED. The bottom LED (for vertically mounted unit), red colored, indicates the FAILED
condition. It is on during the power-up self test which is executed by the module every time the power is first applied or after a hardware reset. The VXI standard requires that this LED go off within 5 seconds. If this LED is still ON after 5 seconds, the VXI module is defective and has to be serviced.

3.1.2 AUXILIARY SIGNALS

The AUX SIGNALS connector (see Table 2-1 and Figure 2-2) at the front panel provides the fol­lowing auxiliary functions: emergency output shutdown, discrete fault, and +5V output.

3.1.2.1 EMERGENCY OUTPUT SHUTDOWN

The emergency output shutdown function allows the user to reset all the power modules con­nected to the Control Bus with a single discrete signal. A user-initiated emergency shutdown activates the non-maskable interrupt of the microsystem, forcing the microsystem to send a reset to all power modules connected to the Control Bus. The NON-ISOLATED EMERGENCY SHUT-DOWN INPUT accepts a TTL input signal to initiate shutdown; this signal is referred to signal common. The ISOLATED EMERGENCY SHUT-DOWN INPUT requires a 2-wire isolated signal and return path.

3.1.2.2 DISCRETE FAULT LINE

The DISCRETE FAULT LINE function provides a discrete controller fault indication by means of an internal relay. The DISCRETE FAULT LINE relay contacts are open (open circuit between DISCRETE FAULT LINE PIN 1 and PIN 2) if the internal microsystem is functioning normally; this is accomplished by monitoring a pulse generated in the timer interrupt routine. If the micro­system is not functioning normally, or a catastrophic condition appears on one of the power modules, the contacts will close. The contacts reopen when the catastrophic condition disap­pears and either the error buffer has been read (if the Command Language is CIIL) or when the Device Dependent Error from the Event Status Register has been read (if the Command Lan­guage is SCPI).
TMA VXI -27 101602
3-1

3.1.2.3 +5V OUTPUT

The +5V output is an auxiliary +5V source supplied through a 390 ohm resistor which can be used to power user-supplied external TTL circuits.

3.2 REMOTE OPERATION

The TMA VXI-27 Power Module Controller is programmed over the VXIbus using either SCPI (Standard Commands for Programmable Instruments) or CIIL (Control Interface Intermediate Language) commands. SCPI and CIIL provide a common language used in an automatic test system.
VXI plug&play drivers included with the TMA VXI-27 greatly simplify programming of power sup­plies connected to the controller via the IEEE 1118 serial bus (see PAR. 3.3). For detailed pro­gramming information, refer to PAR. 3.4 for VXIbus implementation, PAR. 3.5 for an explanation of SCPI programming, and PAR. 3.6 for CIIL programming.

3.3 VXI plug&play OPERATION

The TMA VXI-27 Controller includes two disks used to install VXI plug&play drivers. Once these drivers are installed, any of the power supplies connected to the TMA VXI-27 may be pro­grammed directly; knowledge of the programming languages (SCPI and CIIL) and correspond­ing syntax is not required if the plug&play drivers are used.

3.3.1 BACKGROUND

The VXI plug&play Systems Alliance was formed in September, 1993 with the objective of increasing ease of use for end users of VXI technoloogy. The Alliance endorsed and imple­mented additional common standards and practices in both hardware and software which exceeded the scope of the VXI Specifications. These standards are used to define system “frameworks” which give end users true “plug and play” interoperability at both the hardware and software levels. Of the three currently defined frameworks, DOS, WIN and GWIN, the TMA VXI­27 supports the GWIN (Graphical Windows) framework: an MS-DOS framework with key ele­ments consisting of MS-Windows Soft Front Panel and LabView Drivers and documentation.

3.3.2 DRIVER INSTALLATION

The VXI plug&play install program uses the following structure: Drive C: is the default drive on MS-DOS based computers (this may be changed during installation). The root directory for all VXI plug&play drivers is VXIPNP. Each framework (DOS, WIN, and GWIN) is assigned a sepa­rate subdirectory and each instrument is assigned a subdirectory of the applicable framework; Figure 3-1 illlustrates the directory structure for the TMA VXI-27 plug&play drivers.
• kptmavxi.exe — MS-Windows standalone executable file for TMA VXI-27 soft panel.
• kptmavxi.llb — LabView driver for soft panel.
• kptmavxi.hlp — MS-Windows help file (the MS Windows help files are also found in Appendix A).
• kptmavxi.kb — Knowledge base file which describes the TMA VXI-27.
3-2
To install the plug&play drivers, install floppy disk No. 1 in the appropropriate drive and run SETUP.EXE, then follow directions as they appear on the screen.
TMA VXI -27 101602
VXIPNP
KBASE
(KNOWLEDGE BASE SUBDIRECTORY)
kptmavxi.kb
(knowledge base file for TMA VXI-27)
GWIN
(INSTRUMENT SUBDIRECTORY)
KPTMAVXI
kptmavxi.exe kptmavxi.llb kptmavxi.hlp
FIGURE 3-1. TMA VXI-27

3.3.3 OPERATING THE SOFT PANEL

To intiate operation of the soft panel, either choose this option after plug&play driver installation is complete, or double-click on the TMA VXI-27 icon in the VXIPNP program group available from Windows Program Manager, or run kptmavxi.exe.
The software will search for TMA VXI-27 controllers installed in the VXI mainframe. The first screen (shown below, Figure 3-2) lists the TMA VXI-27 Controller(s) installed, showing the associated slot and assigned logical address. Leave ID QUERY and RESET switches set to NO.
If only one controller is installed, click on the CONNECT button. If more than one controller is installed, click on a box at the left to select one controller. (Figure 3-2 shows two TMA VXI-27 controllers installed in slots 2 and 4 corresponding to logical addresses 7 and 6, respectively.)
(KEPCO TMA VXI-27 SUBDIRECTORY)
(standalone soft front panel for TMA VXI-27) (LabView drivers for TMA VXI-27) (MS-Windows help file for TMA VXI-27)
plug&play
DIRECTORY STRUCTURE
The ID QUERY and RESET switches should be left in the NO position. (ID QUERY set to ON will send a verification of the type of instrument installed to the VXI Resource Manager. RESET set to ON will cause all power supplies to be reset to the initial power on condition when the con­troller is initialized.)
TMA VXI -27 101602
FIGURE 3-2. TMA VXI-27
plug&play
CONTROLLER SELECTION
3-3
Once a controller has been selected, you will see the "virtual" panel of the Kepco power supply, (Figure 3-3). The slot selected is displayed in the SLOT window at the upper left corner of the panel. To operate the controls, click the mouse.
FIGURE 3-3. TMA VXI-27
plag&play
PANEL

3.3.3.1 UNDERSTANDING THE CONTROLS. For on-line information about controls and indicators,

click on SHOW HELP from the HELP menu. Then move the cursor over each control and indi­cator on the panel. Help text will appear and explain the function of each. Table 3-1 lists the function of each control and indicator.
TABLE 3-1. Plug&play PANEL CONTROLS AND INDICATORS
CONTROL/INDICATOR FUNCTION
Click on arrows to increase or decrease the number of channels to be scanned; set to correspond to the number of power supplies actually connected to the controller.
Click on arrows to select channel. Power supply connected to selected channel (indi­cated by MODEL indicator) is visible on “virtual” panel.
TMA VXI -27 101602
3-4
MAX CHANNEL (switch)
SCAN SPEED(switch) Click on arrows to select scan speed from fastest (10) to slowest (1).
SCAN ON/OFF (switch) Click to enables or disable polling of power supplies connected to the active controller.
CHANNEL (switch)
MODEL (indicator) Indicates power supplly model connected to selected channel.
STATUS
(indicators)
OPERATIONAL Indicates value of status bits in operational register (see Figure B-17)
QUESTIONABLE Indicates value of status bits in questionable register (see Figure B-23)
TABLE 3-1. Plug&play PANEL CONTROLS AND INDICATORS (CONTINUED)
CONTROL/INDICATOR FUNCTION
INIT (switch)
SYS RESET (switch)
CHAN RESET (switch)
OUTPUT (switch)
POLARITY (switch)
MODE (switch) Click to select Constant Voltage or Constant Current (alternate action).
TEST (switch)
MEASURED
OUTPUT
(indicators)
OUTPUT
CONTROLS
Click to select a different controller. If only one controller is installed, it will be automat­ically selected.
Click to reset all power supplies connected to the selected controller (power supplies are reset to initial power-on condition)
Click to reset only the selected power supply (power supply is reset to initial power-on condition)
Click to enable or disable the selected power supply output. (Operates relays on power supply models with relays; otherwise output voltage and current is set to zero.
Click to reverse polarity of power supply models incorporating polarity reversal fea­ture.
Programs all power supplies connected to the controller to their maximum value, resets them, opens all relays (if present), then checks for errors in output. If error is detected, the channel number of the failed unit is selected, and the status values indi­cate the type of error detected.
VOLTAGE meter Provides analog and digital indication of measured voltage.
CURRENT meter
VOLTAGE
CURRENT
EXECUTE
(switch)
Provides analog and digital indication of measured current
Click on arrows to set voltage. If AUTOEXECUTE is set to ON, voltage value is imme­diately applied to power suply. If AUTOEXECUTE is set to OFF, voltage value is not applied to selected power supply until EXECUTE is clicked.
Click on arrows to set current. If AUTOEXECUTE is set to ON, current value is imme­diately applied to power suply. If AUTOEXECUTE is set to OFF, current value is not applied to selected power supply until EXECUTE is clicked.
With AUTOEXECUTE set to OFF, click to apply VOLTAGE and CURRENT values to selected power supply.
ACTIVE (indicator) Lights (green) to indicate controller is active.
SLOT (indicator) Displays slot of active controller
READ (indicator) Lights (green) to indicate controller is reading infirmation from power supply.
FAULT (indicator) Lights (red) to indicate error detected. Error indicated by STATUS register values.
OUTPUT ON (indicator) Lights (green) when power supply output is enabled.
REVERSED (indicator) Lights (green) when power supply output polarity is reversed.
CV (indicator)
CC (indicator)
TMA VXI -27 101602
AUTOEXECUTE
ON/OFF
(switch)
Click to set ON/OFF (alternate action). When set to OFF, EXECUTE must be clicked to apply VOLTAGE and CURRENT values to selected power supply. When set to ON, VOLTAGE and CURRENT values are immediately applied to the selected power sup­ply.
Lights (green) when power supply is in Constant Voltage mode. (If the Voltage Limit is exceeded while the power supply was programmed to be in Constant Current mode, the power supply will be forced into Constant Voltage mode (CV turns green) and the FAULT indicator lights (red).
Lights (green) when power supply is in Constant Current mode. (If the Current Limit is exceeded while the power supply was programmed to be in Constant Voltage mode, the power supply will be forced into Constant Current mode (CC turns green) and the FAULT indicator lights (red).
3-5
TABLE 3-1. Plug&play PANEL CONTROLS AND INDICATORS (CONTINUED)
CONTROL/INDICATOR FUNCTION
ABOUT Click for information about TMA VXI-27 plug&play driver.
CLOSE Click to close plug&play soft panel. Closing the panel does not

3.3.3.2 SELECT THE CHANNEL. Click on the arrows on the CHANNEL box at the lower left. You will see the Kepco power supply Models connected to the system.

3.3.3.3 SET THE VOLTAGE/CURRENT. In the OUTPUT CONTROLS box at the lower center, click on the arrows to increase or decrease the voltage and current. If the power supply is set to Con­stant Voltage mode (CV indicator green), the CURRENT setting is the Current Limit. Similarly, if the power supply is set to Constant Current mode (CC green), the VOLTAGE setting is the volt­age limit.

3.3.3.4 APPLY PROGRAMMED SETTINGS TO THE POWER SUPPLY. Click on EXECUTE. The programmed values for voltage and current limit are now applied to the selected power supply. If AUTOEXECUTE is clicked to ON, the VOLTAGE and CURRENT settings will be immediately applied to the selected power supply.

3.3.3.5 ENABLE THE POWER SUPPLY OUTPUT. Click on the OUTPUT button to the left of the meters to enable the output. The OUTPUT ON indicator turns green. The measured values of voltage and current are indicated by the VOLTAGE and CURRENT meters. Note that the meters give both a digital and analog representation of voltage and current.

3.4 VXIBUS COMMUNICATION

Table 3-2 defines the VXI commands implemented in the TMA VXI-27 in accordance with Spec­ification VXI-1, Rev. 1.4 for a class I4 instrument.
TABLE 3-2. VXI BUS COMMANDS
VXI Command Description
ABORT NORMAL OPERATION
ASSIGN INTERRUPTER LINE
ASYNCHRONOUS MODE CONTROL
BEGIN NORMAL OPERA­TION (With or without TOP LEVEL bit)
Causes the TMA VXI-27 to cease normal operation and return to its default configuration (the same configuration occurring after hardware reset at power up) with interrupt unasserted.
Used to assign a VXIbus IRQ line to the TMA VXI-27 module inter­rupter. The default value is 0 which means NO INTERRUPTS.
Used to direct the path of events and responses and also enable or disable the generation of events and responses. The TMA VXI-27 supports only EVENTS as INTERRUPTS; any other combination will generate an error
Notifies the TMA VXI-27 that it can begin normal operation. In response, the TMA VXI-27 sets the corresponding flags in order to be ready to receive commands through the WORD SERIAL PROTOCOL. The TOP LEVEL bit (bit 8) is used to identify the device as a Top Level Commander.
TMA VXI-27
Responds if active
substate is:
Configure
YES NO
YES NO
YES NO
YES NO
Normal
Operation
3-6
TMA VXI -27 101602
TABLE 3-2. VXI BUS COMMANDS (CONTINUED)
VXI Command Description
TMA VXI-27
Responds if active
substate is:
Configure
Normal
Operation
BYTE AVAILABLE Sends SCPI or CIIL commands to the TMA VXI-27. Also used to send
BYTE AVAILABLE + END Same as BYTE AVAILABLE except that bit 8 (END) is set to identify
BYTE REQUEST Reads responses from commands previously sent to the TMA VXI-27. NO YES
CLEAR Causes the TMA VXI-27 to clear its internal buffers and reset the VXI
CONTROL EVENT Causes the TMA VXI-27 to selectively enable or disable the genera-
CONTROL RESPONSE Implemented; however, since the TMA VXI-27 does not generate
END NORMAL OPERATION
IEEE 488.2 common commands.
the byte as the last byte of the message.
error.
tion of a specific event. The TMA VXI-27 can generate two events, REQUEST TRUE and REQUEST FALSE. After power up, these events are both enabled (in accordance with the VXI Specification).
The REQUEST TRUE event is sent when the TMA VXI-27 requires service from its commander (the SERVICE REQUEST bit from the status byte goes TRUE and the EVENTS AS INTERRUPT and REQUEST TRUE FLAG are enabled).
The REQUEST FALSE event is sent by the TMA VXI-27 when it no longer requires service from its commander (the SERVICE REQUEST bit from the status byte goes FALSE and the EVENTS AS INTER­RUPT and REQUEST FALSE FLAG are enabled).
response signals or response interrupts, any attempt to enable responses will generate an error.
Causes the TMA VXI-27 to end the normal operation and to go back to the CONFIGURE sub-state. This command will report an error (7 in the STATUS FIELD) if the device was already in the configure state when the command was issued.
NO YES
NO YES
YES NO
YES NO
YES NO
YES NO
READ INTERRUPTER LINE
READ INTERRUPTERS Used to determine the number of interrupters within a SERVANT
READ PROTOCOL Used to determine what protocols, in addition to the Word Serial Pro-
TMA VXI -27 101602
Used to determine the VXIbus IRQ line assigned to the TMA VXI-27 interrupter. The default value is 0 which means NO INTERRUPTS.
device. The TMA VXI-27 has only one interrupter, therefore 1 will be returned in the answer word. This result will be used in the next com­mand (READ INTERRUPTER LINE) in which the commander can interrogate the TMA VXI-27 to determine which IRQ line is connected to this interrupter.
tocol, the TMA VXI-27 supports. This is usually the first command sent by the Resource Manager after power up and determines all subse­quent commands issued to the device. The TMA VXI-27 response to this command is 8623 Hex which means that it is capable of Event Generation, that it has a Programmable Interrupter (which means it supports the Read Interrupters, Read Interrupter Line, and Assign Interrupter Line commands), that it supports Word Serial TRIGGER command and that it also supports the VXIbus Instrument Protocol as an I4 class Instrument.
YES NO
YES NO
YES NO
3-7
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