KEPCO BOP-MG Operator's Manual
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KEPCO BOP-MG Operator's Manual

1kw high power bipolar power supply
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OPERATOR'S MANUAL
HIGH POWER BIPOLAR POWER SUPPLY
KEPCO INC.
An ISO 9001 Company.
IMPORTANT NOTES:
1)
This manual is valid for the following Firmware Versions:
FIRMWARE VERSION
3.05 and higher
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 num-
bers. Before using this Instruction Manual, check your equipment firmware version num-
ber 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 firmware version 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.
©2012, KEPCO, INC
P/N 243-1027-r15b
KEPCO, INC.
131-38 SANFORD AVENUE
BOP-MG 1KW
MODEL
BOP-MG 1KW

POWER SUPPLY

ORDER NO.
FLUSHING, NY. 11355 U.S.A.
email: hq@kepcopower.com
NOTE.
KEPCO
THE POWER SUPPLIER™
TEL (718) 461-7000
World Wide Web: http://www.kepcopower.com
®
FAX (718) 767-1102

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Summary of Contents for KEPCO BOP-MG

  • Page 1: Power Supply

    Before using this Instruction Manual, check your equipment firmware version num- ber 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 firmware version number.

  • Page 3: Declaration Of Conformity

    93/68/EEC (CE mark) Standard to which Conformity is declared: EN61010-1:1993 (Safety requirements for electrical equipment for measurement, control and laboratory use) KEPCO INC. Manufacturer's Name and Address: 131-38 SANFORD AVENUE FLUSHING, N.Y. 11355 USA Importer's Name and Address: Component Power Supply Type of Equipment: Model No.:...
  • Page 4 There are no user or operator serviceable parts within the product enclosure. Refer all servicing to qualified and trained Kepco service technicians. 228-1529 COND/CONFORM 031912...

  • Page 5: Safety Instructions

    SAFETY INSTRUCTIONS 1. Installation, Operation and Service Precautions This product is designed for use in accordance with EN 61010-1 and UL 3101 for Installation Category 2, Pollution Degree 2. Hazardous voltages are present within this product during normal operation. The prod- uct should never be operated with the cover removed unless equivalent protection of the operator from accidental contact with hazardous internal voltages is provided: There are no operator serviceable parts or adjustments within the product enclosure.

  • Page 6: Safety Messages

    Service must be referred to authorized personnel. Using the power supply in a manner not specified by Kepco. Inc. may impair the protection provided by the power supply. Observe all safety precautions noted throughout this manual. The following table lists symbols used on the power supply or in this manual where applicable.

  • Page 7: Warnings And Cautions

    LIST OF WARNINGS AND CAUTIONS PAGE WARNING/CAUTION WARNING: 3-20 For inductive loads, and especially superconducting magnet type loads, the inherent offset of the BOP in the OFF state may generate significant current in the circuit. A properly rated switch in parallel with a resistor must be connected between the power supply and the load.
  • Page 8 LIST OF WARNINGS AND CAUTIONS PAGE WARNING/CAUTION CAUTION: it is recommended that source power of external equipment connected to the Analog Port be applied through an isolating transformer To avoid ground loops or possible damage to the BOP due to incorrect equipment a-c wiring (e.g., defeating of ground connection).
  • Page 9 LIST OF WARNINGS AND CAUTIONS PAGE WARNING/CAUTION 3-19 CAUTION: When working with active loads, always adjust the BOP protection limits to be above the maximum values of voltage or current expected from the load. For example, when the BOP is operating in voltage mode sinking energy from a constant current type load, set the current protection limits of the BOP above the maximum current expected from the load.

  • Page 11: Table Of Contents

    TABLE OF CONTENTS SECTION PAGE SECTION 1 - INTRODUCTION Scope of Manual ............................. 1-1 General Description..........................1-1 Specifications ............................1-1 Local Control ............................1-14 Remote Control ............................1-14 Features ..............................1-14 1.6.1 Digital Calibration..........................1-14 1.6.2 voltage/current Protection........................1-14 1.6.3 Waveforms............................
  • Page 12 TABLE OF CONTENTS SECTION PAGE 3.2.4 How to Access the menus ........................ 3-6 3.2.4.1 Overall menu Structure ....................... 3-6 3.2.4.2 How to Modify a Parameter......................3-7 3.2.4.3 Password Setup.......................... 3-7 3.2.4.4 How to Access a Password Protected Menu ................3-8 3.2.5 Operator Convenience Functions (Display Menu) ................
  • Page 13 TABLE OF CONTENTS SECTION PAGE 3.4.5 Monitoring Output Current Using an analog signal................3-43 Digital Remote Mode Programming ......................3-43 3.5.1 Operating Features Available only by Remote Commands............... 3-43 3.5.1.1 Expanded Waveforms and Programs ..................3-43 3.5.2 Programming Techniques to Optimize performance ................. 3-43 3.5.2.1 Programming Voltage/Current Limit and Current/Voltage Limit...........
  • Page 14 TABLE OF CONTENTS SECTION PAGE 3.6.4.6 Message Unit Separator ......................3-62 3.6.4.7 Root Specifier..........................3-62 3.6.4.8 Message Terminator ........................3-62 3.6.5 Understanding The Command Structure ..................3-62 3.6.6 Program Message Syntax Summary ....................3-63 3.6.7 Status Reporting ..........................3-63 3.6.7.1 Status Reporting Structure......................
  • Page 15 TABLE OF CONTENTS SECTION PAGE B.13 OUTP [:STAT ] Command........................B-6 B.14 OUTP STAT ] Query ......................... B-7 B.15 OUTP :CONT Command ......................... B-7 B.16 OUTP :CONT? Query .......................... B-7 B.17 OUTP :MODE Command........................B-7 B.18 OUTP :MODE? Query.......................... B-7 ediate litude B.19...
  • Page 16 TABLE OF CONTENTS SECTION PAGE B.71 [SOUR :]LIST:SET:SAMP ? Query ....................B-19 B.72 [SOUR :]LIST:SET:TRIG Command....................B-19 ger? B.73 [SOUR :]LIST:SET:TRIG QUERY ....................B-19 B.74 [SOUR :]LIST:SET:WAIT Command ....................B-19 B.75 [SOUR :]LIST:SET:WAIT? QUERY..................... B-19 B.76 [SOUR :]LIST:TRIG Command...................... B-19 B.77 [SOUR :]LIST:VOLT...
  • Page 17 TABLE OF CONTENTS SECTION PAGE B.129 SYSTem:COMMunication:SERial:PACE? Query................... B-32 B.130 SYSTem:COMMunication:SERial:PROMpt CommanD ................. B-33 B.131 SYSTem:COMMunication:SERial:PROMpt? Query................B-33 B.132 SYST :ERR ? Query ........................B-33 B.133 SYST :ERR :CODE? Query......................B-33 B.134 SYST :ERR :CODE:ALL? Query ..................... B-33 oard B.135 SYST :KEYB Command......................
  • Page 18 LIST OF FIGURES FIGURE TITLE PAGE High Power BOP Series Power Supply......................x 1000W BOP Power Supply, Outline Drawing..................... 1-12 BOP Output Characteristics ........................1-17 BOP Series Rear Panel..........................2-1 Load Connections, Local Sensing......................2-12 Load Connections, Remote Sensing......................2-12 Parallel Configuration, Local Sensing, Typical ...................
  • Page 19 LIST OF TABLES TABLE TITLE PAGE BOP 1000 Watt Model Parameters ......................1-1 BOP General Specifications ........................1-2 Equipment Supplied ............................1-16 Safety Symbols ............................1-16 Accessories ..............................1-18 Rear Panel Connector Functions ........................2-2 IEEE 1118 Connector Input/Output Pin Assignments .................2-2 Trigger Port Pin Assignments ........................2-3 External Protection Connector Input/Output Pin Assignments ..............2-3 RS232C PORT Input/Output Pin Assignments ...................2-4 Parallel/Serial Control Out Port Pin Assignments ..................2-4...
  • Page 20 FIGURE 1-1. HIGH POWER BOP SERIES POWER SUPPLY BOP-1K 031912...

  • Page 21: Section 1 - Introduction

    This manual contains instructions for the installation, operation and servicing of the BOP series of 1000 Watt rack-mounted, 4-quadrant bipolar, programmable, voltage and current stabilized d- c power supplies manufactured by Kepco, Inc., Flushing, New York, U.S.A. NOTE:This manual does not apply to units with Firmware Rev less than 2.0.

  • Page 22: Input Characteristics

    TABLE 1-2. BOP GENERAL SPECIFICATIONS SPECIFICATION RATING/DESCRIPTION CONDITION INPUT CHARACTERISTICS a-c voltage nominal 230 Va-c Single phase, or between two phases of a 3- phase system range 176 - 264 Va-c Frequency nominal 50/60 Hz range 47 - 63 Hz Current 176 Va-c 9.5A (7.5A)*...
  • Page 23 TABLE 1-2. BOP GENERAL SPECIFICATIONS (Continued) SPECIFICATION RATING/DESCRIPTION CONDITION OUTPUT CHARACTERISTICS (Continued) Digital Programming Voltage 14 bits / 0.03% 3% accuracy for Ext Ref Level (see PAR. resolution / accuracy 3.4.3.2). Unit gain adjustable between 0 and Current 14 bits / 0.1% (voltage) or I O (current).
  • Page 24 TABLE 1-2. BOP GENERAL SPECIFICATIONS (Continued) SPECIFICATION RATING/DESCRIPTION CONDITION OUTPUT CHARACTERISTICS (Continued) Analog Voltage and current limited in four quadrants, adjustable between 10% and 101%of or I O . The analog limits are converted to digital limits at 100mS update Output Protection rate.
  • Page 25 TABLE 1-2. BOP GENERAL SPECIFICATIONS (Continued) SPECIFICATION RATING/DESCRIPTION CONDITION PROGRAMMING/DISPLAY CHARACTERISTICS (Continued) Trigger Port (See Table 2-3) Shutdown (pin 2) : Operation of pin 2 is controlled by OUTP:CONT command (see Par. B.15). Settings are STANDBY (default), HIGH, LOW, OFF. Either OFF or STANDBY is required if using OUTP ON and OUTP OFF commands to control the output.
  • Page 26 TABLE 1-2. BOP GENERAL SPECIFICATIONS (Continued) SPECIFICATION RATING/DESCRIPTION CONDITION FUNCTION GENERATOR CHARACTERISTICS (Continued) Types of Basic waveforms Sine (Sinusoidal waveform) Triangle (Triangular waveform) Pos. Ramp (Ramp waveform) Neg. Ramp (Sawtooth waveform) Square (50% Duty Cycle Pulse) Level (DC waveform) Maximum number of points per basic wave- Local: 3933 form Count (Number of repetitions)
  • Page 27 TABLE 1-2. BOP GENERAL SPECIFICATIONS (Continued) SPECIFICATION RATING/DESCRIPTION CONDITION FUNCTION GENERATOR CHARACTERISTICS (Continued) LIST command characteristics for “string” type Maximum number of points Note: Dwell time list must match (balance) the waveform (Remote only) amplitude list. • For single (global) dwell time: 5900 (high resolution) •...
  • Page 28 TABLE 1-2. BOP GENERAL SPECIFICATIONS (Continued) SPECIFICATION RATING/DESCRIPTION CONDITION FUNCTION GENERATOR CHARACTERISTICS (Continued) Amplitude Range Main Channel Voltage (Volts p-p) 0 to 2 x E O Sine, Triangle, Square, ±Ramp Current (Amperes 0 to 2 x I O Sine, Triangle, Square, ±Ramp p-p) Protection Limit Channel .

  • Page 29: Miscellaneous Features

    TABLE 1-2. BOP GENERAL SPECIFICATIONS (Continued) SPECIFICATION RATING/DESCRIPTION CONDITION SAVE/RECALL CHARACTERISTICS (See PAR. 3.3.8) Number of Locations Parameters Saved or Recalled All parameters saved for power-up. Mode of operation Voltage, Current or External For External the operating mode is deter- mined by signal at I/O Port;...
  • Page 30 Types Factory defaults: Main: DEFAULT, Password Main, Admin1, Admin2 Admin1: none assigned, Admin2: KEPCO Protection Choices Unprotected, Main, Admin1, Admin2 Password menu always protected by Admin2 Items Protected Interface, max/min , Load type, Test, Multiple unit configurations are protected by Calibration, Power-up, Keypad @ Admin2 password.

  • Page 31: Physical Characteristics

    TABLE 1-2. BOP GENERAL SPECIFICATIONS (Continued) SPECIFICATION RATING/DESCRIPTION CONDITION PHYSICAL CHARACTERISTICS Dimensions English 5.25' X 19" X 21.5" H X W X D metric 133.3mm X 482.6mm X 546.1mm H X W X D Weight, 1000W models English 53 lbs metric 24.1Kg Connections...

  • Page 32: W Bop Power Supply, Outline Drawing

    18.805 [477.63] 18.018 [457.64] 17.675 [448.93] 16.835 [427.60] OBROUND 0.25x0.453 (4 LOC.) 18.235 [463.16] 18.985 [482.21] FIGURE 1-2. 1000W BOP POWER SUPPLY, OUTLINE DRAWING (SHEET 1 OF 2) 1-12 BOP HIPWR 031912...

  • Page 33: Rear View

    REAR VIEW REMOVE FEET FOR RACK MOUNTING. 22.000 [558.79] SLIDES TRAVEL DISTANCE: 23.000 [584.2] SEE NOTE 6. FIGURE 1-2. BOP POWER SUPPLY, OUTLINE DRAWING (SHEET 2 OF 2) 1-13 BOP HIPWR 031912...

  • Page 34: Local Control

    LOCAL CONTROL Either the front panel keypad or the adjust control can set and adjust output voltage and current under local control. The display provides a digital display of output voltage and current as well as a pictorial display of real-time analog voltage and current meters. The keypad includes five function keys which provide access to the menu-driven functions of the unit.

  • Page 35: Saving And Recalling Settings

    Up to 16 user-generated waveforms can be stored for later use. The user selects the operating mode, positive and negative protection levels, and a count (the number of times the waveform is to be repeated). Each waveform consists of up to 10 segments; each segment is assigned one of six basic waveform types: square, sine, triangle, negative ramp, positive ramp and level.

  • Page 36: Energy Recuperation

    Service must be referred to authorized personnel. Using the power supply in a manner not specified by Kepco. Inc. may impair the protection provided by the power supply. Observe all safety precautions noted throughout this manual (see listing on page E, preceding the Table of Contents).

  • Page 37: Bop Output Characteristics

    FIGURE 1-3. BOP OUTPUT CHARACTERISTICS 1-17 BOP HIPWR 031912...

  • Page 38: Accessories

    TABLE 1-5. ACCESSORIES ITEM FUNCTION PART NUMBER Mating Connector, Trigger Mates with Trigger port. 142-0527 (Kepco) SP2501 (CUI Stack) IEEE 1118 (BITBUS) Allows connection to IEEE 1118 (BITBUS) port. 142-0485 (Kepco) Mating connector KMDLA-5P (Kycon Inc.) IEEE 488 Cable, (1 meter long) Connects BOP power supply to GPIB bus.

  • Page 39: Section 2 - Installation

    SECTION 2 - INSTALLATION UNPACKING AND INSPECTION This instrument has been thoroughly inspected and tested prior to packing and is ready for operation. After careful unpacking, inspect for shipping damage before attempting to operate. Perform the preliminary operational check as outlined in PAR. 2.3. If any indication of damage is found, file an immediate claim with the responsible transport service.

  • Page 40: Rear Panel Connector Functions

    TABLE 2-1. REAR PANEL CONNECTOR FUNCTIONS NUMBER CONNECTOR/TERMINAL FUNCTION (FIGURE 2-1) (REFERENCE DESIGNATOR) IEEE 1118 (BITBUS) Used for multiple identical BOP master/slave parallel, and series and series-parallel PORT configurations (refer to PAR. 2.8, see Table 2-2). (connector A1J4) TRIGGER May be used to initiate BOP output. (See Table 2-3.) (connector A1J3) IEEE 488 (GPIB) PORT Used for Remote control of the BOP via the IEEE 488 (GPIB) interface (See Table...

  • Page 41: Trigger Port Pin Assignments

    TABLE 2-3. TRIGGER PORT PIN ASSIGNMENTS CONNECTOR SIGNAL NAME FUNCTION LOGIC GND Return for TRIGGER and SHUTDOWN signals. SHUTDOWN Operation of pin 2 is controlled by OUTP:CONT command (PAR. B.15): STANDBY, HIGH, LOW, DISABLED. OUTPUT ON-OFF Factory default is STANDBY upon power-up: Logic 0 ((0 volts µ...

  • Page 42: Rs232C Port Input/Output Pin Assignments

    TABLE 2-5. RS232C PORT INPUT/OUTPUT PIN ASSIGNMENTS CONNECTOR SIGNAL NAME FUNCTION Request To Send (protocol not used) Receive Data RS 232 Transmit Data PORT LOGIC GND Logic Ground A1J5 LOGIC GND Logic Ground Clear To Send (protocol not used) TABLE 2-6. PARALLEL/SERIAL CONTROL OUT PORT PIN ASSIGNMENTS CONNECTOR SIGNAL NAME FUNCTION...

  • Page 43: Parallel/Serial Protect In Port Pin Assignments

    TABLE 2-8. PARALLEL/SERIAL PROTECT IN PORT PIN ASSIGNMENTS CONNECTOR SIGNAL NAME FUNCTION SD_A Anode of LED optocoupler which is part of protection circuit for parallel or series combination. Cathode of LED is connected to PARALLEL/ SERIAL PROTECT OUT PORT (A2A5J2) pin 1 (see Table 2-9). When activated, the optocoupler shuts down the unit.

  • Page 44: Preliminary Operational Check

    TABLE 2-10. ANALOG I/O PORT INPUT/OUTPUT PIN ASSIGNMENTS CONNECTOR SIGNAL NAME FUNCTION CAUTION: IT IS RECOMMENDED THAT SOURCE POWER OF EXTERNAL EQUIPMENT CON- NECTED TO THE ANALOG PORT BE APPLIED THROUGH AN ISOLATING TRANS- FORMER TO AVOID GROUND LOOPS OR POSSIBLE DAMAGE TO THE BOP DUE TO INCORRECT EQUIPMENT A-C WIRING (E.G., DEFEATING OF GROUND CONNECTION).

  • Page 45: Ieee 488 Port Input/Output Pin Assignments

    2. With no load connected, set POWER switch to the ON position. Each time the unit is turned on an internal self-test is performed. The alphanumeric display (LCD) shows the processor firmware revision history and lists various tests performed during the internal self-test. As each test is completed, PASS or FAIL is displayed.

  • Page 46: Installation

    INSTALLATION 2.4.1 RACK MOUNTING The unit is shipped with four feet attached to bottom of the unit which must be removed prior to installation (see Figure 1-2). The BOP is designed to be rack mounted in a standard 19-inch wide rack using the mounting ears (supplied) attached to the front panel (see Figure 1-2). Allow a minimum of 7/8 in.

  • Page 47: Grounding Network Configuration

    It is hoped that the preceding paragraphs will be of some assistance in most cases. For help in special applications or difficult problems, consult directly with Kepco's Application Engineering Department. 2.5.3.1...

  • Page 48: Load Connection - General

    The stabilized d-c power supply is definitely not an ideal voltage or current source, and practical interfaces definitely fall short of the ideal. All voltage-stabilized power supplies have a finite source impedance which increases with frequency, and all current-stabilized power supplies have a finite shunt impedance which decreases with frequency.

  • Page 49: Load Connection Using Local Sensing

    2.5.6 LOAD CONNECTION USING LOCAL SENSING Figure 2-2 shows a typical configuration using local sensing and a grounded load; for local sensing with an isolated (“floating”) load, do not install the ground connection (see Figure 2-2, Note 2). 2.5.7 LOAD CONNECTION USING REMOTE SENSING Figure 2-3 shows a typical configuration using remote sensing and a grounded load;...

  • Page 50: Load Connections, Local Sensing

    FIGURE 2-2. LOAD CONNECTIONS, LOCAL SENSING N / C FIGURE 2-3. LOAD CONNECTIONS, REMOTE SENSING 2-12 BOP HIPWR 031912...

  • Page 51: Setup For Remote Operation Via Gpib

    NOTE: Multiple unit configurations require that all individual units be properly calibrated. (Units shipped from Kepco have been factory-calibrated.) If not, refer to Section 4 to calibrate the individual units prior to connecting them in parallel or series. Using calibrated units ensures that the multiple unit configuration is calibrated;...

  • Page 52: Multiple Unit Source Power

    three series-connected units. These figures allow other configurations, e.g., five parallel-con- nected units or two series connected units, etc. to be easily deduced. Figure 2-12 shows the connections for a typical 3 X 2 (two parallel branches each consisting of three series-connected units) configuration, as well as simplified diagrams showing required arrangements for 2 X 2.

  • Page 53: Parallel Configuration, Local Sensing, Typical

    FIGURE 2-4. PARALLEL CONFIGURATION, LOCAL SENSING, TYPICAL 2-15 BOP HIPWR 031912...

  • Page 54: Parallel Configuration, Remote Sensing, Typical

    FIGURE 2-5. PARALLEL CONFIGURATION, REMOTE SENSING, TYPICAL 2-16 BOP HIPWR 031912...

  • Page 55: Series Configuration, Local Sensing, Typical

    N / C N / C N / C FIGURE 2-6. SERIES CONFIGURATION, LOCAL SENSING, TYPICAL 2-17 BOP HIPWR 031912...

  • Page 56: Series Configuration, Remote Sensing, Typical

    N / C N / C N / C FIGURE 2-7. SERIES CONFIGURATION, REMOTE SENSING, TYPICAL 2-18 BOP HIPWR 031912...

  • Page 57: Configuring Parallel, Series, 2 X 2 Or 3 X 2 Combinations

    FIGURE 2-8. TYPICAL MASTER/SLAVE PROTECTION INTERCONNECTIONS Upon startup, PAR/SER PROT IN PORT pin 8 of the master goes low, and stays low until all slaves are powered up. Normal power up of a unit causes the transistor connecting PAR/SER PROT IN PORT pin 2 and PAR/SER PROT OUT PORT pin 2 to conduct. The transistors of all units are connected in series, effectively shorting out all the shutdown diodes (the shutdown diodes of all units are also connected in series) connecting PAR/SER PROT IN PORT pin 1 and PAR/SER PROT OUT PORT pin 1.

  • Page 58: Multiple Units Menu Functions

    TABLE 2-12. MULTIPLE UNITS MENU FUNCTIONS CHOICES SETTING FUNCTION (BOLD = Factory Default) CONFIGURATION STANDALONE STANDALONE - Unit operates independently, no additional units connected. PARALLEL PARALLEL - Unit to be configured for parallel operation; opens UNIT TYPE SERIES and CONNECTION TYPE options shown below. Used when units are con- MASTER 2 X 2 nected in parallel (increase output current) (see NOTE below).

  • Page 59: Master Power Up Screen

    a. From the power-up screen press to enter the General Setup Menu. Highlight Series/ Parallel and press to view the Multiple Units menu (see Table 2-12). When prompted, enter ADMIN2 password (see PAR. 3.2.4.4) before continuing. b. From the Multiple Units menu, highlight Configuration (use ADJUST control or the keys) and press to modify.

  • Page 60: Power On Default Screen For Master Unit

    TABLE 2-13. SLAVE STATUS MESSAGE DEFINITIONS Slave Status Message Displayed on Master Power Up Screen MEANING (see Figure 2-9) Ready Unit is ready for operation. If unit’s FAULT indicator is off, hardware error has NOT been detected, STANDBY output is ready to be turned on Powered OFF Unit is not responding to polls via BITBUS.

  • Page 61: Operating Instructions For Multiple Unit Combinations

    VOLTAGE SOURCE 0.0000 FIGURE 2-11. POWER ON DEFAULT SCREEN FOR SLAVE UNIT 2.8.4 OPERATING INSTRUCTIONS FOR MULTIPLE UNIT COMBINATIONS 1. Apply power to the combination by first turning on the master, then turn on the slave(s). If the master is in STANDBY, depress STANDBY key on the master to apply power to the output terminals.

  • Page 62: Restoring A Unit To Standalone Operation

    2.8.5 RESTORING A UNIT TO STANDALONE OPERATION 1. Turn off power to the master. 2. Turn off power to the slave(s). 3. Turn on power to the unit to be restored to standalone operation. 4. From the power-up screen press to enter the General Setup Menu.

  • Page 63: X 2 (3 Series X 2 Parallel) Configuration, Local Sensing, Typical

    N / C N / C N / C N / C N / C N / C FIGURE 2-12. 3 X 2 (3 SERIES X 2 PARALLEL) CONFIGURATION, LOCAL SENSING, TYPICAL 2-25/(2-26 Blank) BOP HIPWR 031912...

  • Page 65: Section 3 - Operation

    BOP (see PAR. 3.6, Appendix A and Appendix B) or 2) CIIL commands (for compatibility with older Kepco products). Operation in remote mode can be simplified by the use of the VISA driver (see PAR. 3.5.5).

  • Page 66: Front Panel Keypad

    TABLE 3-1. FRONT PANEL CONTROLS AND INDICATORS NUMBER CONTROL/INDICATOR FUNCTION (FIGURE 3-1) POWER ON/OFF Applies source power to unit circuit breaker A7CB1 Displays output voltage and current as well as information in response to Alphanumeric/graphic Display keypad and ADJUST control entries. Displays function of soft function (LCD) keys F1 through F5, and displays information as required to perform all local functions.

  • Page 67: Lcd And Power-Up Screen Description

    TABLE 3-2. SPECIAL KEY FUNCTIONS FUNCTION The STANDBY key toggles the unit between output on (enabled, STANDBY indicator off) and output off (disabled, STANDBY indicator on). When on, the output goes to the programmed settings. Behavior of the STANDBY unit in Standby (Output off) is determined by the options chosen for Load Type (see PAR. 3.3.6). The default Load Type is ACTIVE, i.e., in STANDBY the unit is set to voltage mode, voltage is set to zero, cur- rent protection is set to the nominal, and voltage limit is set to maximum.

  • Page 68: Power-Up Screen Showing Graphic Meters

    VOLTAGE 0000 FIGURE 3-3. POWER-UP SCREEN SHOWING GRAPHIC METERS VOLTAGE 0000 FIGURE 3-4. POWER-UP SCREEN SHOWING TIME LINE GRAPH When in Voltage mode, the power supply will (within the configured and rated limits) provide the programmed output voltage. Current is determined by the load, and cannot exceed the Current Protect limits.

  • Page 69: Turning The Power Supply On

    When in Sink mode, the power supply is operating as an electronic load, absorbing and recu- perating the energy of an active load. Recuperated energy is passed back into the a-c source power line. Mode displayed at the upper right is VOLTAGE SINK when the unit is in voltage mode and an external constant current is injected into the BOP.

  • Page 70: How To Access The Menus

    If the display is not viewable, press twice. The display will cycle through the range of con- trast settings. Press again to lock in the preferred contrast. To select between the meter (Figure 3-3) and time line (Figure 3-4) displays refer to PAR. 3.2.5.4.

  • Page 71: How To Modify A Parameter

    • - Analog Remote Setup • • Analog Remote Settings (Table 3-15): Reference input (internal/external/external reference level), protec- tion limit (internal/external/lesser limit), external mode (enable/disable) • - General Setup (Figure 3-6) • • Interface Settings (Table 3-16): Data format (SCPI/CIIL), GPIB address (default = 6), *RST sets Output (on/off), Device clear (SCPI/MATE), Serial Baud (Off/9600/19200), Xon/Xoff (enable/disable), prompt (enable/disable) •...

  • Page 72: How To Access A Password Protected Menu

    To change any password you must enter the Admin 2 password to access the Password Menu. The unit is shipped with the Admin 2 password set to “KEPCO,” the Main Unit password set to ”DEFAULT,” and the Admin 1 password is not assigned. To change the password or to protect one of the protected menus, proceed as follows: 1.

  • Page 73: Operator Convenience Functions (Display Menu)

    1. Enter the first character of the password using the keypad or ADJUST control (see PAR. 3.2.4.2 for entry of alphanumeric characters). (To change the password, refer to PAR. 3.2.4.3.) 2. Press to move to the next character and repeat step 1 for the next character of the pass- word.

  • Page 74: Displaying Programmed Settings In Remote Mode

    To change the background, press from the power-up screen, Highlight Background, press , highlight Black or White, then to save. Press exit and save for power-up or apply the changes (without saving for power-up) and exit. TABLE 3-3. DISPLAY (OPERATOR CONVENIENCE) MENU FUNCTIONS CHOICES SETTING FUNCTION...

  • Page 75: Enabling/Disabling Audible Beeps

    3.2.5.3 ENABLING/DISABLING AUDIBLE BEEPS From the power-up screen (Figure 3-3), press , then refer to Table 3-3 and modify the setting using the techniques described in PAR. 3.2.4). Even though audible beeps are set to off, the beeps will still sound upon power-up or detection of a power supply fault. 3.2.5.4 DISPLAYING METERS OR GRAPH (TIME LINE) The top screen can be configured to either display graphical analog meters (Figure 3-3) show-...

  • Page 76: Local Password Protection At Power-Up

    3.3.1.2 LOCAL PASSWORD PROTECTION AT POWER-UP It is possible to require a password before the front panel controls can function when the unit is powered up. From the power-up screen, press , highlight password, then . Enter Admin 2 password (see PAR. 3.2.4.4) and press to verify.

  • Page 77: Voltage And Current Parameter Definitions

    Use the ADJUST control to increase or decrease the main channel setting (e.g., volt- age when the unit is in voltage mode). Start with the most significant digit of the desired value, then use to highlight the next digit. For fine adjustment press the ADJUST control in while rotating the knob to modify the least significant digit.

  • Page 78: Selecting Bipolar/Independent Protection Limits

    TABLE 3-4. VOLTAGE AND CURRENT PARAMETER DEFINITIONS (CONTINUED) To modify refer to PAR. Term Definition Local Remote Minimum (box) Current mode only. Minimum (positive) setting for +Voltage Protect and +Voltage Protect Min maximum (maximum negative) setting for –Voltage Protect. Values of ±Volt- –Voltage Protect Max age Protect between +Voltage Protect Min and –Voltage Protect Max (near zero) are not allowed.

  • Page 79: General Setup Menu

    VOLTAGE CURRENT VOLTAGE 0.0000 0.0000 SOURCE FIGURE 3-6. GENERAL SETUP MENU VOLTAGE CURRENT VOLTAGE 0.0000 0.0000 SOURCE FIGURE 3-7. MAX/MIN SETTINGS MENU Selection of Bipolar does not immediately change the protect limit values; it changes how the protect settings are displayed and set from the power-up screen. So if maximum/minimum pro- tection limits were set to different values, (e.g, for BOP 36-28MG, current mode, no load, +V Protect Max = 25V and –V Protect Min = 7V) when BIPOLAR is selected, the previous protec- tion values (+25, –7) will remain in place until a new value is entered in the Voltage Protection...

  • Page 80: Understanding Voltage And Current Protect Limits

    3.3.3.2 UNDERSTANDING VOLTAGE AND CURRENT PROTECT LIMITS These values are the references for the complementary channels: voltage in current mode and current in voltage mode. The range for these values is between a minimum (box) value (see Fig- ure 1-3) and 1% above the rated nominal value (see PAR. 3.3.4.2). If the unit is in voltage mode, it will enter current protect mode when the load demands more current and energy than permit- ted by the ±current protect settings.

  • Page 81: Changing Maximum Accepted Voltage Or Current (Main Channel Software Limits)

    TABLE 3-5. MAX/MIN SETTINGS MENU CHOICES SETTING FUNCTION (BOLD = Factory Default) Protect Entry BIPOLAR BIPOLAR - Causes a single protection limit value (one for voltage, one for cur- INDEPENDENT rent) to apply to both ± limits. Only one value is displayed and edited from the front panel.

  • Page 82: Changing Maximum/Minimum Protection Software-Controlled Limits

    capable of delivering ±28A in current mode can be configured to allow current to be adjusted from –0.5A to +10A by setting –Current Min to –0.5 and +Voltage Max to +10. Adjustment range is between 0 and E for voltage and 0 and I for current.

  • Page 83: External Limits

    CAUTION: WHEN WORKING WITH ACTIVE LOADS, ALWAYS ADJUST THE BOP PRO- TECTION LIMITS TO BE ABOVE THE MAXIMUM VALUES OF VOLTAGE OR CURRENT EXPECTED FROM THE LOAD. FOR EXAMPLE, WHEN THE BOP IS OPERATING IN VOLTAGE MODE SINKING ENERGY FROM A CONSTANT CURRENT TYPE LOAD, SET THE CURRENT PROTECTION LIMITS OF THE BOP ABOVE THE MAXIMUM CURRENT EXPECTED FROM THE LOAD.

  • Page 84: Determining How The Unit Responds When Output Is Off (Load Type)

    3.3.6 DETERMINING HOW THE UNIT RESPONDS WHEN OUTPUT IS OFF (LOAD TYPE) TABLE 3-6. POWER SUPPLY BEHAVIOR WHEN OUTPUT IS SET TO OFF LOAD TYPE If unit was in Voltage Mode when output OFF If unit was in Current Mode when output OFF SETTING command issued.

  • Page 85: Changing The Default Power Up Settings

    RESISTIVE. This mode, as the name suggests, is useful for resistive loads. Table 3-6 indicates how the power supply responds to a command to go from Output ON to OFF. WARNING Accessing the BOP after the output is disabled in BATTERY mode is hazardous because (1) high current arcing is possible and (2) either the external battery voltage, or the voltage (±Voltage Protection max) on the BOP output terminals may be dangerous.

  • Page 86: Examples Showing How Power-Up Settings Function

    ues for protection limit channels (bipolar limits), voltage for current mode and current for voltage mode. Table 3-7 illustrates the relationship between Mode, Main Channel, Pro- tection Type and Levels settings. • Output: on (may be on or off) (see PAR. 3.3.5) To change the default settings refer to the applicable paragraph(s) specified above as needed, then from the power-up screen press .

  • Page 87: Storing/Recalling Power Supply Output Settings

    3.3.8 STORING/RECALLING POWER SUPPLY OUTPUT SETTINGS The power supply settings (mode, main channel reference type and setting, protection limit type and setting and output status) can be stored in one of 99 memory locations for later recall. This feature is accessible from the front panel by pressing from the power-up screen to view the Saved Settings screen (Figure 3-8).

  • Page 88: Viewing Saved Settings

    TABLE 3-8. SAVE/RECALL MENU (CONTINUED) CHOICES PARAMETER FUNCTION (BOLD = Factory Default) PROTECTION INTERNAL INTERNAL - Allows limits to be controlled by POSITIVE and NEGATIVE values. MODE EXTERNAL EXTERNAL: Allows limits to be controlled by analog signals applied to the analog LESSER LIMIT port (see PAR.

  • Page 89: Copying Previously Saved Settings To A New Location

    VOLTAGE CURRENT VOLTAGE 0.0000 0.0000 SOURCE FIGURE 3-8. SAVED SETUPS MENU 2. Use the keys to highlight the desired memory location; To erase a highlighted memory location, press . The list will show erased locations as Empty. 3. Press to see the details stored in the highlighted location. 4.

  • Page 90: Applying Saved Settings To The Output (Recall)

    3. Highlight an Empty location and press to save to the highlighted location, or press abort the copy. 3.3.8.5 APPLYING SAVED SETTINGS TO THE OUTPUT (RECALL) 1. Press from the power-up screen to enter the Save/Recall menu. 2. Use the keys to highlight the desired memory location.

  • Page 91: Understanding How Waveforms Are Generated

    VOLTAGE CURRENT VOLTAGE 0.0000 0.0000 SOURCE FIGURE 3-9. SAVED WAVEFORMS MENU 3.3.9.3 UNDERSTANDING HOW WAVEFORMS ARE GENERATED Waveform are generated by the BOP by producing a series of discrete output levels (points) in a prescribed pattern. In the case of sine, triangle and ramps, this produces an output that con- forms to an approximation of the selected waveform type.

  • Page 92: Waveform Specifications

    TABLE 3-9. SINE, TRIANGLE AND RAMP WAVEFORM FREQUENCY VS. POINTS Frequency Frequency (See Notes 1, 2, and 3) (See Notes 1, 2, and 3) Total Points Total Points From From 0.01Hz 2.7Hz 3840 55.5Hz 66.5Hz 2.71Hz 3.6Hz 2880 66.6Hz 88.7Hz 3.71Hz 5.5Hz 1920...

  • Page 93: Viewing Stored Waveforms

    3.3.9.5 VIEWING STORED WAVEFORMS After observing the precautions of PAR. 3.3.9.1, press from the power-up screen to access the Saved Waveforms screen (Figure 3-9). Use or the encoder to highlight the name of a previously saved waveform, then press to view the Waveform Settings screen (see Figure 3-10).

  • Page 94: Modifying Previously Stored Waveforms

    To change the Waveform Stop setting, press from the power-up screen (Figure 3-3), High- light Waveform Stop, press , highlight Standby, Last Level or Current Lvl, then to save. Press exit and save for power-up or to apply the changes (without saving for power-up) and exit.

  • Page 95: Waveform Segment Details Menu

    TABLE 3-11. WAVEFORM SEGMENT DETAILS MENU SETTING CHOICES FUNCTION Type Square Square - Square wave, bipolar, starts with positive excursion (see Note 1). Pos Ramp Pos Ramp - Increasing ramp, bipolar (see Note 1). Neg Ram Neg Ramp - Decreasing ramp, bipolar (see Note 1). Triangle Triangle - bipolar, starts with positive excursion, start/stop angle may be user con- Sine...

  • Page 96: Using Segments To Build A Waveform

    3. Refer to Table 3-12 and enter the desired settings for Mode, Positive and Negative Protec- tion and Count. These settings apply to all waveform segments. (Note that the setting for mode cannot be changed once it has been saved; to change the mode, create a new wave- form.) For each parameter listed in Table 3-12 use or ADJUST to highlight the parameter, then press...

  • Page 97: Sample Waveform

    FIGURE 3-11. SAMPLE WAVEFORM 2. The initial waveform settings are displayed (see Table 3-11 and Table 3-12 for parameter details. Use to modify the initial settings for the waveform. For each parameter, use to save the setting. Name CAP CHARG Mode VOLTAGE Protection...

  • Page 98: Copying A Waveform

    4. From the Waveform Settings screen, highlight segment LEVEL 0.002s 0.00 I and press to insert a new segment. Use to modify the following settings of the new segment. For each parameter, use to save the setting. Type Level Period (Sec) 0.001 Offset When all settings are complete, press...

  • Page 99: Reset

    . Then highlight a waveform location designated Empty and press to save or to abort the change and exit. The copied waveform may then be modified and saved with a new name if desired (see PAR. 3.3.9.7). 3.3.10 RESET CAUTION: PRESSING RESET WILL CAUSE VOLTAGE TRANSIENTS TO APPEAR AT THE OUTPUT WHICH MAY DAMAGE A CONNECTED LOAD.

  • Page 100: Error Message Explanations

    3.3.12 ERROR MESSAGE EXPLANATIONS When a key press is not accepted, an error message is displayed at the bottom of the screen. Although recovery from most operator errors is obvious and simple, Table 3-14 lists all the error messages along with associated explanations as to why they occurred. TABLE 3-14.

  • Page 101: Analog Remote Mode Programming

    TABLE 3-14. ERROR MESSAGE EXPLANATIONS (CONTINUED) ERROR MESSAGE EXPLANATION Unit in STANDBY - Please Change Output must be on for the waveform to be executed. press STANDBY key to set output on then press to run the waveform Can not delete Single Segment - use Waveform must have at least one segment.

  • Page 102: Remote Standby

    FIGURE 3-12. REMOTE SHUTDOWN USING EXTERNAL POWER, STANDALONE OR MULTIPLE UNITS FIGURE 3-13. REMOTE SHUTDOWN USING INTERNAL POWER, STANDALONE UNITS FIGURE 3-14. REMOTE SHUTDOWN USING INTERNAL POWER, MULTIPLE UNITS, 3.4.1.2 REMOTE STANDBY A standalone unit or a multiple unit configuration (parallel, series or series-parallel) can be set to STANDBY status by applying a remote signal to the TRIGGER PORT as shown in Figure 3-15.

  • Page 103: Voltage/Current Mode Control

    maximum delay of 200 mS and the STANDBY indicator goes on. Depressing the STANDBY key or sending the OUTP ON command via the remote interface restores the unit to the previous state and the STANDBY indicator goes off. FIGURE 3-15. REMOTE STANDBY, STANDALONE OR MULTIPLE UNITS 3.4.2 VOLTAGE/CURRENT MODE CONTROL...

  • Page 104: Analog Remote Setup Menu

    2. To return to digital or local control, from the power-up screen press , then highlight Refer- ence Input and press . Highlight Internal and press to save. Then press to apply the change and exit. TABLE 3-15. ANALOG REMOTE SETUP MENU CHOICES SETTING FUNCTION...

  • Page 105: Variable Gain Using External Reference Level

    input signal exceeds the limit value (either ±10V if the software limit is set to nominal, or a lesser voltage for a user-determined software limit) clipping of the output voltage or current to the limit will occur. NOTE: If the system limits have been modified (PAR. 3.3.4), the output of the power supply will never exceed the modified system limits.

  • Page 106: External Protection Limits

    3.4.4 EXTERNAL PROTECTION LIMITS When PROTECTION LIMIT on the Reference Menu is set to EXTERNAL, the protect limits are determined by four analog signals referenced to Ground (pin 12) which are applied to the Ana- log I/O Port (see PAR. 3.4.4). To be functional this feature must first be configured from the front panel.

  • Page 107: Monitoring Output Current Using An Analog Signal

    3.5.2.1 PROGRAMMING VOLTAGE/CURRENT LIMIT AND CURRENT/VOLTAGE LIMIT Kepco's auto-crossover digital supplies can operate in either voltage mode with current limit, or current mode with voltage limit. The operating mode is determined by the voltage and current commands received, as well as the load. Each time voltage and current commands are received, the unit must evaluate the commands and the load conditions to determine the neces- sary operating mode.

  • Page 108: Making Sure The Previous Command Is Complete

    1. Minimize programmed mode (voltage or current) changes. Unless absolutely required by the test parameters, allow the power supply to automatically switch modes as determined by the load. This will improve response time and reduce undesirable transients. 2. Once the mode (voltage or current) is programmed, program the active parameter to zero and the complementary limit parameter to the maximum anticipated for application.

  • Page 109: Remote Mode Setup

    The BOP can be substituted for a standard BOP that is currently being used with one of Kepco’s BIT cards, however there are differences in operation (see PAR. 3.5.3.4 and 3.5.3.5.

  • Page 110: Gpib Port Setup

    SCPI (Standard Commands for Programmable Instruments) - see PAR. Data Format CIIL 3.6. and Appendix B. CIIL - Provides compatibility with early Kepco power supplies and con- trollers. GPIB Address 0 - 30 (06) Assigns address used by external GPIB controller to communicate with BOP.

  • Page 111: Determining Whether *Rst Command Sets The Output Off Or On

    3.5.3.1.3 DETERMINING WHETHER *RST COMMAND SETS THE OUTPUT OFF OR ON The user can control whether the *RST command (see PAR. A.11) sets the output on or off. Table 3-17 describes how the unit operates depending on how *RST set Output is config- ured, and the load type selected.

  • Page 112: Configure Prompt Mode

    3.5.3.2.3 CONFIGURE PROMPT MODE From the power-up screen press , then press to enter the Interface menu (see Table 3- 16). Highlight Serial Prompt and press , highlight the desired option and press to save, then press to apply the changes (without saving for power-up) and exit, or press to save for power-up (see PAR.

  • Page 113: Status Reporting Differences In Bit 4886

    3.5.3.5.2 STATUS REPORTING DIFFERENCES IN BIT 4886 The status register responses from the BOP 1KW and the BOP BIT/4886 are very different. If these commands are used, then changes will be required in the user’s program. Commands affected are: SYST:OPER, SYST:QUES, *ESR and *STB. 3.5.3.5.3 TRIGGER OPERATION DIFFERENCES IN BIT 4886 The BOP/BIT 4886 only supports *TRG while the BOP 1KW supports TRIGGER:SOURCE EXTERNAL, BUS and IMMEDIATE.

  • Page 114: Bop Visa Instrument Driver

    Status Byte Sent 3.5.5 BOP VISA INSTRUMENT DRIVER The VISA instrument driver for the BOP power supply, available for download at www.kepco- power.com/drivers.htm, simplifies programming with a VISA compatible GPIB controller. Included are: • source code (C) for all VISA functions (kp_bophi.c) •...

  • Page 115: Rs232-C Operation

    Although the software drivers supplied by Kepco are VISA compliant, they also require the installation of the proper VISA driver from your GPIB card supplier. Many vendors supply this software with the hardware; National Instruments (http://www.natinst.com) has the driver for their cards available on the internet at a file transfer site (ftp://ftp.natinst.com —...
  • Page 116 The BOP provides an additional option that allow handshake communication: the Prompt method. By using the handshake options (prompt and XON XOFF) the host controller can ensure that serial data interrupts occurring after parsing of the incoming message do not result in lost data.

  • Page 117: Xon Xoff Method

    CAUTION: When the serial port has received an XOFF, the error message -400, QUE error will be placed in the queue to indicate the loss of transmitted informa- tion due to a received XOFF character. When XON is received, the unit will transmit all data in it's buffer followed by the exclamation character (!).

  • Page 118: Isolating Rs 232 Communication Problems

    If each of the above steps is completed successfully, the problem lies in the computer hard- ware and/or software. Refer to the Product Support area of the Kepco website for additional information regarding RS 232 communications problems: www.kepcopower.com/support.

  • Page 119: Common Commands/Queries

    3.6.2 COMMON COMMANDS/QUERIES Common commands and queries are defined by the IEEE 488.2 standard to perform overall power supply functions (such as identification, status, or synchronization) unrelated to specific power supply operation (such as setting voltage/current). Common commands and queries are preceded by an asterisk (*) and are defined and explained in Appendix A (see Table 4-4).
  • Page 120 ROOT : (colon) SYSTem subsystem ABORt subsystem STATus subsystem SYSTem ABORt STATus :BEEP :OPERation :COMM INITiate subsystem :CONDition? :GPIB:ADDR val :ENABle val INITiate :GPIB:ADDR? :ENABle? [:IMMediate] :SER [:EVENt]? :CONTinuous bool :BAUD :PRESet :CONTinuous? :BAUD? :QUEStionable :ECHO :CONDition? CALibrate subsystem :ECHO? :ENABle val CALibrate :PACE...
  • Page 121 ROOT : (colon) [SOURce:] subsystem LIST subsystem [SOURce:] [SOURce:] LIST CURRent VOLTage :CLEar [:LEVel] [:LEVel] :COUNt val [:IMMediate] [:IMMediate] :COUNt? [:AMPLitude] val [:AMPLitude] val :COUNt:SKIP int [:AMPLitude]? MIN, MAX [:AMPLitude]? MIN, MAX :COUNt:SKIP? :TRIGgered :TRIGgered :CURRent val,val [:AMPLitude] val [:AMPLitude] val APPLy type,val1,val2,val3 [:AMPLitude]? [:AMPLitude]?

  • Page 122: Measure Subsystem

    3.6.3.5 MEASURE SUBSYSTEM This query subsystem returns the voltage and current measured at the power supply's output terminals. 3.6.3.6 OUTPUT SUBSYSTEM This subsystem controls the power supply's voltage and current outputs 3.6.3.7 MEMORY SUBSYSTEM This subsystem controls the Flash Memory used by the BOP microprocessors and is used for storing setup parameters and for storing a list for later recall and execution The unit’s configuration, voltage and current, saved setups (*SAV and *RCL command) and Cal- ibration values are stored in Flash Memory.

  • Page 123: Trigger Subsystem

    If the password is lost, it is possible to enable the password interface by sending SYST:PASS:CEN POWERSUPPLIER Once enabled, the passwords can be set to the default values SYST:SEC:OVERRIDE This restores the passwords to the following: Main: DEFAULT Admin2: KEPCO Admin1: (none assigned) 3-59 BOP HIPWR 031912...

  • Page 124: Program Message Structure

    3.6.4 PROGRAM MESSAGE STRUCTURE SCPI program messages (commands from controller to power supply) consist of one or more message units ending in a message terminator. The message terminator is not part of the syntax; it is defined by the way your programming language indicates the end of a line (“newline” charac- ter).

  • Page 125: Keyword Separator

    TABLE 3-21. RULES GOVERNING SHORTFORM KEYWORDS IF NUMBER OF LETTERS IN AND FOURTH LETTER THEN SHORT FORM EXAMPLES LONGFORM KEYWORD IS: IS A VOWEL? CONSISTS OF: 4 OR FEWER (DOES NOT MATTER) ALL LONG FORM LETTERS MODE THE FIRST FOUR MEASure, OUTPut, EVENt LONG FORM LETTERS 5 OR MORE...

  • Page 126: Message Unit Separator

    • new line (<NL>), ASCII 10 (decimal) or 0A (hex) NOTE: Kepco power supplies require a message terminator at the end of each program mes- sage. The examples shown in this manual assume a message terminator will be added at the end of each message. Where a message terminator is shown it is represented as <NL>...

  • Page 127: Program Message Syntax Summary

    STAT:PRES<NL> The parser returns to the root due to the message terminator. STAT:OPER?;PRES<NL> The parser moves one level in from STAT. The next command is expected at the level defined by the colon in front of OPER?. Thus you can combine the following message units STAT:OPER? and STAT:PRES;...

  • Page 128: Status Reporting Structure

    3.6.7.1 STATUS REPORTING STRUCTURE The status reporting of the BOP uses four status registers, illustrated in Figure 3-20. These reg- isters are the Questionable, Operation, Standard Event and Service Request registers. The Questionable and Operation registers are 16 bit registers and the Standard Event and Service Request registers are 8 bits.

  • Page 129: Typical Example Of Bop Power Supply Program Using Scpi Commands

    Figure 3-20 also shows that if the error/event queue is not empty, bit 3 is set in the Service Request register and bit 4 indicates that a message is available in the output buffer. /**************************************************************************/ /* Sample Program For KEPCO power supply, using National Instruments */ /* GPIB interface card and IBM PC or compatible computer /**************************************************************************/ #include <stdio.h>...

  • Page 130: Operational Status Register

    3.6.7.2 OPERATIONAL STATUS REGISTER The OPERational condition register contains conditions which are a part of the instrument’s nor- mal operation. The definition of each of these bits (condition register) is as follows: • 0 through 4 - Not Used — always zero. •...

  • Page 131: Questionable Status Register

    3.6.7.3 QUESTIONABLE STATUS REGISTER The QUEStionable condition register (see Figure 3-20) contains status bits representing data/signals which give an indication of the quality of various aspects of the signal. A bit set in the QUEStionable condition register indicates that the data currently being acquired or generated is of questionable quality due to some condition affecting the parameter associ- ated with that bit.

  • Page 133: Section 4 - Calibration

    SECTION 4 - CALIBRATION GENERAL This section contains the calibration instructions for the Power Supply. It is recommended that the user be familiar with Local Mode operation (PAR.3.2) before calibrating the unit. A full calibration consist of a voltage calibration and a current calibration. Both voltage and cur- rent calibrations consist of zero, max and min, and protection limit calibration.

  • Page 134: Test Equipment Requirements

    (together) TEST EQUIPMENT REQUIREMENTS Table 4-2 lists sense resistors recommended for measuring current and includes Kepco and Manufacturer’s part numbers. The value of the sense resistor chosen should be known with 0.001% accuracy. If other than a recommended sense resistor is to be used, it must be rated for at least 100W power dissipation (actual power dissipation will be approximately 10W).

  • Page 135: Suggested Sense Resistors

    NOTE: Selected sense resistor must be mounted on a heatsink with a minimum surface area of 36 square inches to maintain ther- mal stability during calibration; forced cooling is recommended. Kepco Heatsink P/N 136-0451 will provide adequate cool- ing for the sense resistor.

  • Page 136: Calibration Using Remote Scpi Commands Via Gpib Or Rs 232 Interface

    TABLE 4-4. CURRENT CALIBRATION MEASUREMENTS AND TOLERANCES SENSE ±FULL SCALE ±FULL SCALE RESISTOR CURRENT CURRENT CPR LIMIT MODEL VALUE ZERO (SEE NOTE (TOLERANCE) MAX. MIN. TOLERANCE MAX. MIN. TOLERANCE AND TABLE 4-2) BOP 6-125MG 0.001 Ohm 0.125V –0.125V ±0.013mV 0.125V –0.125V ±0.063mV (±0.0013mV)

  • Page 137: Calibration Procedure Using Scpi Commands

    b. MAX and MIN Calibrations. The primary means of adjustment is the CAL:DATA <VALUE> command to either increase (CAL:DATA 1) or decrease (CAL:DATA -1) the output value. Adjustment can be done in larger increments by increasing the numeric value, e.g., CAL:DATA +10 or CAL:DATA -10.
  • Page 138 2. Set the BOP to zero volts output by sending CAL:VOLT ZERO. Connect a Digital Voltmeter (DVM) to the BOP OUT S and COM S terminals to measure the output voltage. Send CAL:DATA commands as needed (see PAR. 4.3a) to adjust the BOP output until the DVM reads as close to zero as possible within tolerance specified in Table 4-3 for VOLTAGE ZERO.
  • Page 139 BOP current outputs, as well as the formula for calculating expected measured values and tolerances for any sense resistor other than those recom- mended. Table 4-2 lists Kepco and Manufacturer part numbers for those sense resistors rec- ommended.

  • Page 140: Calibration Setup For Current Mode

    CAUTION WIRES BETWEEN BOP OUTPUT AND SENSE RESISTOR MUST BE RATED TO CARRY THE RATED OUTPUT CURRENT OF THE POWER SUPPLY. AWG#6 IS RECOMMENDED. FIGURE 4-2. CALIBRATION SETUP FOR CURRENT MODE WARNING The sense resistor will be dissipating full rated current of the BOP. If it is hot to the touch, the sense resistor value, power rating and/or cooling are incorrect;...
  • Page 141 output until the DVM reads as close as possible above the nominal full scale value within tol- erance specified in Table 4-4 for +FULL SCALE CPR LIMIT. 24.Send CAL:CPR MIN to adjust the minimum (maximum negative) current protection limit of the power supply.

  • Page 142: Calibration Using Front Panel Keypad In Local Mode

    NOTE: Accuracy of the 10V d-c reference must be ±0.1mV in order for the calibrated unit to meet published specifications. 32.Connect a +10V ±0.1mV d-c reference to pin 3 (S_IN_PARALLEL) referenced to pin 1 (SGND) of the PAR/SER CONTROL IN connector (A2A5J3). Set the BOP to maximum posi- tive output current by sending CAL:PAR MAX.

  • Page 143: Main Calibration Screen

    • or ENTER - EXIT VOLTAGE*Ref Only* CURRENT VOLTAGE 0.0000 0.0000 SOURCE CALIBRATION MODE DATE FIELD FIGURE 4-3. MAIN CALIBRATION SCREEN 3. Press either to initiate Voltage or Current calibration, respectively. To calibrate multiple units refer to the Instruction Manual Included with the associated parallel or series connection cable kit.

  • Page 144: Calibration Procedure Using Local Mode

    5. Selecting one of the above options begins calibrating the output. The screen describes the function of the active keys: • - or clockwise rotation of the ADJUST control adjust the output by approximately 10 increments in the positive direction. •...
  • Page 145 as close as possible above the nominal full scale value within the limits specified in Table 4-3 for +FULL SCALE VPR LIMIT. Press once. 6. Press - NEGATIVE to adjust the maximum negative protection limit of the power supply. Adjust as needed until the reading is as close as possible above the nominal full scale value within the limits specified in Table 4-3 for –FULL SCALE VPR LIMIT.
  • Page 146 P terminal). Table 4-4 provides recommended sense resistor values for various BOP current outputs, as well as the formula for calculating expected measured values and tolerances for any sense resistor other than those recommended. Table 4-2 lists Kepco and Manufacturer part numbers for those sense resistors recommended.

  • Page 147: Calibration Storage

    26.Press - EXTERNAL, - POSITiVE. Measure the current by reading the voltage across the sense resistor. Adjust as needed until the DVM reads as close as possible above the nominal full scale value within tolerance specified in Table 4-4 for +FULL SCALE CURRENT. Press three times.

  • Page 148: Calibration Storage

    ibration. Each time a CAL:SAV is executed, the values are saved in the Working (active) area. At the same time, the values previously stored in Working are moved to Prior, and the values previously stored in Prior are moved to Oldest. The values previously stored in Oldest are no longer available.

  • Page 149: Appendix A - Scpi Common Command/Query Definitions

    APPENDIX A - SCPI COMMON COMMAND/QUERY DEFINITIONS INTRODUCTION This appendix defines the SCPI common commands and queries used with the BOP power supply. Common commands and queries are preceded by an asterisk (*) and are defined and explained in paragraphs A.2 through A.18, arranged in alphabetical order. Table A-1 provides a quick reference of all SCPI common commands and queries used in the Interface Card.

  • Page 150: Ese? - Standard Event Status Enable Query

    The character string contains the following fields: <Manufacturer>, <Model>, <Voltage>, <Current>, <Serial Number>, <Main revision>-<Flash revision> where: <Manufacturer> = KEPCO, <Model> = BOP 1000W, <Serial Number> = SSSSSS <date> = (string of up to 12 contiguous characters denoting calibration date) <Main revision=n.m, (e.g, 1.0) >...

  • Page 151: Opc? - Operation Complete Query

    Returns 33 (bit 5 set), indicating Command Error has occurred since the last time the register was read. Bit 1 indicates operation complete (OPC). *IDN? Power supply returns: KEPCO, BOP_1000W 36-28 123456 1.43. *OPC Allows status bit 0 to be set when pending operations complete.

  • Page 152: Opt? - Options Query

    *OPT? *OPT? — OPTIONS QUERY Syntax: *OPT? Returns string determined by power supply model. Description: Causes the power supply to return an ASCII string which defines the functionality of the power supply. The functionality is defined as follows: STRING DATA MEANING CCAL Support for limit calibrations is present.

  • Page 153: Sre - Service Request Enable Command

    *SRE A.13 *SRE — SERVICE REQUEST ENABLE COMMAND Syntax: *SRE<integer> where <integer> = value from 0 - 255 per Table A-3, except bit 6 cannot be pro- grammed. Description: Sets the condition of the Service Request Enable register. The Service Request Enable register determines which events of the Status Byte Register are summed into the MSS (Master Status Sum- mary) and RQS (Request for Service) bits.

  • Page 154: Tst? - Self Test Query

    *TST? A.17 *TST? — SELF TEST QUERY Syntax: *TST? Returned value: 7 bits coded per Table A-4. Description: Power Supply test.This query causes the power supply to do a self test and provide the controller with pass/fail results. A 0 is returned if the unit passes the test. If the unit fails, a number from 1 through 128 is returned to indicate the cause of the error.

  • Page 155: Appendix B - Scpi Command/Query Definitions

    APPENDIX B - SCPI COMMAND/QUERY DEFINITIONS INTRODUCTION This appendix defines the SCPI subsystem commands and queries used with the BOP power sup- ply. Subsystem commands are defined in PAR. B.3 through B.148, arranged in groups as they appear in the tree diagram, Figure 3-18. Table B-1 provides a quick reference of all SCPI subsys- tem commands and queries used in the BOP.

  • Page 156: Cal Commands And Queries

    To use these commands, refer to Kepco’s website (www.kepcopower.com/drivers) and download the LabWindows/ CVI Version 5 driver for BOP or refer to PAR. 4.3. This file provides remote calibration capability and...

  • Page 157: Initiate[:Immediate] Command

    CAL:CEXT command CAL:STAT command and query CAL:CGA command CAL:VEXT command CAL:CLIM command CAL:VGA command CAL:CPR command CAL:VLIM command CAL:CURR[:DATA] command CAL:VOLT[:DATA] command CAL:DATA value command CAL:VPR command CAL:DPOT command CAL:ZERO command CAL:SAVE command INIT[:IMM] INITiate[:IMMediate] COMMAND Syntax: Short Form: INIT:[IMM] Long Form: INITiate[:IMMediate] Description: Enables a single trigger.

  • Page 158: Init:cont

    INIT:CONT INITiate:CONTinuous COMMAND Syntax: Short Form: INIT:CONT {ON | OFF} or {1 | 0} (1 = on, 0 = off) Long Form: INITiate:CONTinuous {ON | OFF} or {1 | 0} (1 = on, 0 = off) Description: INIT:CONT ON enables continuous triggers.; INIT:CONT OFF disables continuous triggers. If INIT:CONT is OFF, then INIT[:IMM] arms the trigger system for a single trigger.

  • Page 159: Mem:upd

    MEM:UPD B.12 MEMory:UPDate COMMAND Syntax: Short Form: MEM:UPD {INT | LIM | SER | CONT | OUTP} Long Form: MEMory:UPDate {INTerface | SERial | LIMits | CONTrast | OUTPut} Description: Saves selected variables. MEM:UPD INT saves GPIB address, Language (SCPI or CIIL) and all SYST:SET (PAR.

  • Page 160: Using List Commands To Measure Sample At Start Of Pulse

    NOTES: 1. The power supply is assumed to be operating in constant voltage mode. 2. This example creates a 3 Ampere, 100mS current pulse and performs a current measurement dur- ing the first five mS of the pulse. LIST:CLE Clear list. LIST:SET:SAMPLE .0003125 Establishes the sample timing.

  • Page 161: Ut :Cont Rol Command

    OUTP? B.14 OUTPut[:STATe] QUERY Syntax: Short Form: OUTP[:STAT]? Long Form: OUTPut[:STATe]? Return Value: <int_value> (0 or 1) Description: Indicates whether power supply output is enabled or disabled. Returns 0 if output disabled, returns 1 if output enabled. Related Commands: OUTP. OUTP:CONT B.15 OUTPut:CONTrol COMMAND Syntax:...

  • Page 162: El ]:Lim It [:Both] Command

    ditions. The CURR?MAX query returns the maximum positive current allowed for a particular model. CURR? MIN returns minimum negative current allowed for power supply (always negative). Related Commands: CURR. (See example, Figure B-1.) CURR:LIM[:BOTH] B.21 [SOURce:]CURRent[:LEVel]:LIMit[:BOTH] COMMAND Syntax: Short Form: [SOUR:]CURR[:LEV]:LIM[:BOTH] <value> Long Form: [SOURce:]CURRent[:LEVel]:LIMit[:BOTH] <value>...

  • Page 163: El ]:Lim It :Neg Command

    CURR:LIM:NEG B.23 [SOURce:]CURRent[:LEVel]:LIMit:NEG COMMAND Syntax: Short Form: [SOUR:]CURR[:LEV]:LIM:NEG <value> Long Form: [SOURce:]CURRent[:LEVel]:LIMit:NEGative <value> Description: Establishes the negative software limit <value> for output current, i.e., sets the maximum value of out- put current that the unit will be allowed to source (quadrant 3, Figure 1-3) or sink (quadrant 2) to the value specified by the user.

  • Page 164: Ce :]Curr Ent :Mode? Query

    CURR:MODE? B.28 [SOURce:]CURRent:MODE? QUERY Syntax: Short Form: [SOUR:]CURR[:LEV]:MODE? Long Form: [SOURce:]CURRent[:LEVel]:MODE? Return value: FIXED, LIST, TRANSIENT, EXTERNAL or GAIN Description: Identifies active current mode. Returns LIST while list is being executed. Returns TRANSIENT after CURR:MODE:TRAN command has been issued, but before CURR: or *TRG command executes the transient.

  • Page 165: El ]:Prot Ect :Neg Ative ? Query

    CURR:PROT:NEG? B.34 [SOURce:]CURRent[:LEVel]:PROTect:NEGative? QUERY Syntax: Short Form: [SOUR:]CURR[:LEV]:PROT:NEG? Long Form: [SOURce:]CURRent[:LEVel]:PROTect:NEGative? Returns <value> Description: Identifies the negative protection limit for current. CURR:PROT:POS B.35 [SOURce:]CURRent[:LEVel]:PROTect:POSitive COMMAND Syntax: Short Form: [SOUR:]CURR[:LEV]:PROT:POS <value> Long Form: [SOURce:]CURRent[:LEVel]:PROTect:POSitive <value> where <value> is between minimum (box) value (Figure 1-3) and 1% above rated (nominal) output current.

  • Page 166: Ce :]Func Tion :Mode? Query

    B.41 [SOURce:]CURRent[:LEVel]:PROTect:LIMit:POSitive COMMAND CURR:PROT:LIM:POS Syntax: Short Form: [SOUR:]CURR[:LEV]:PROT:LIM:POS <exp_value> Long Form: [SOURce:]CURRent[:LEVel]:PROTect:LIMit:POSitive <exp_value> where <value> is between minimum (box) value (Figure 1-3) and 1% above rated (nominal) output current. Description: Establishes the maximum value possible for the positive protection limit for current. This may be set up to 1% greater than rated current.

  • Page 167: B-5 Using List Commands And Queries

    FUNC:MODE:TRIG? B.48 [SOURce:]FUNCtion:MODE:TRIGger? QUERY Syntax: Short Form: FUNC:MODE:TRIG? Long Form: [SOURce:]FUNCtion:MODE:TRIGger? Return value: 0 = voltage mode or 1 = current mode Description: Returns the operating mode which the power supply will enter when a trigger command is sent. VOLT = Constant Voltage mode (CV). CURR = Constant Current mode (CC). LIST:CLE B.49 [SOURce:]LIST:CLEar COMMAND Syntax:...

  • Page 168: T Command

    LIST:COUN B.50 [SOURce:]LIST:COUNt COMMAND Syntax: Short Form: LIST:COUN<int_value 0 to 255> Long Form: LIST:COUNt> <int_value 0 to 255> Description: Establishes how many times the list is executed. Allows user to establish how many times the list is executed. For LIST:COUN 0, the unit will execute the sequence indefinitely until a VOLT:MODE FIXED, command is received.

  • Page 169: B-2 List Data Table

    LIST:COUN:SKIP B.52 [SOURce:]LIST:COUNt:SKIP COMMAND Syntax: Short Form: LIST:COUN:SKIP nn Long Form: LIST:COUNt:SKIP nn nn = <int_value 0 to 255> Description: Allows beginning steps of list-generated waveform to be run once, then ignored. When a list is to be repeated using LIST:COUNT, this command allows the user to skip the first nn steps once the full set has been executed.

  • Page 170: Appl Y :Swe Ep Command

    LIST:CURR:APPL B.56 [SOURce:]LIST:CURR:APPLy COMMAND Syntax: Short Form: LIST:CURR:APPL <type>,<value1>,<value2>[,<value3>] Long Form: LIST:CURRent:APPLy <type>,<value1>,<value2>[,<value3>] Where <type> is {SQUARE | RAMP+ | RAMP- | TRIANGLE | SINE | LEVEL} <value1> is frequency (or period (duration) for LEVEL <value2> is p-p amplitude (or amplitude (offset) for LEVEL <value3>...

  • Page 171: Command

    LIST:DWEL? B.61 [SOURce:]LIST:DWELl? QUERY Syntax: Short Form: LIST:DWEL? Long Form: LIST:DWELl? Return Value: <value> Description: Identifies the dwell times entered for the list. Starting at location established by LIST:QUERy, returns comma-separated list of up to 16 values indicating the dwell time parameters entered. i.e., the contents of LIST:DWEL locations of Table B-2.

  • Page 172: Volt Age Command

    LIST:SAMP:CURR B.67 [SOURce:]LIST:SAMPle:CURRent COMMAND Syntax: Short Form: LIST:SAMP:CURR average,value Long Form: LIST:SAMPle:CURRent average,value where: <average> = number of measurements = integer: 2, 4, 8, 16, 32, 64, 128 or 256 <value> = programmed current (Amps) for current list, or programmed voltage (Volts) for voltage list. Description: Samples output current.

  • Page 173: Bop-1K

    LIST:SET:SAMP? B.71 [SOURce:]LIST:SET:SAMPle? QUERY Syntax: Short Form: LIST:SET:SAMP? Long Form: LIST:SET:SAMPle? Returns: <exp_value> Description: Returns sample pulse duration. Returns sample pulse duration set by LIST:SET:SAMP command, has not been set, error 100- “com- between 0.00025 and 0.034 Second. sample pulse duration mand error”...

  • Page 174: Multiple External Devices Using A Single External Pulse

    NOTES: 1. The power supply is assumed to be operating in constant voltage mode. 2. The WAIT commands provide a method to synchronize multiple instruments to a common control pulse. This example assumes BOP and a number of switching DVMs are connected to a Unit Under Test (UUT).

  • Page 175: Using List:wait Commands To Allow An External Device Time To Function While Imposing A Maximum Wait Time

    NOTES: 1. The power supply is assumed to be operating in constant voltage mode. 2. This example assumes a BOP and a DVM is connected to a Unit Under Test (UUT). The DVM is connected to EXT_E/ EXT_C (pins 5/6 of the BOP External Protection port). When the BOP out- puts a low EXT_E/ EXT_C, The DVM takes a series of measurements and places its wait line low.

  • Page 176: Age :Appl Y Command

    LIST:VOLT B.77 [SOURce:]LIST:VOLTage COMMAND Short Form: LIST:VOLT[:LEV] <exp_value>, <exp_value>, . . . (to max of 5900 data points) Long Form: LIST:VOLTage[:LEVel] <exp_value>, <exp_value>, . . . (to max of 5900 data points) <exp_value> = digits with decimal point and Exponent, e.g., 2.71E1 for 27.1 Description: Adds the voltage value (in Amps) to list.

  • Page 177: B.84 [Sour Ce :]List:wait:ledge Command

    LIST:VOLT:POIN? B.82 [SOURce:]LIST:VOLTage:POINts? QUERY Syntax: Short Form: LIST:VOLT:POIN? Long Form: LIST:VOLTage:POINts? Return Value: <n> where n = number of points used Description: Identifies the total number of points in a list and the next location to be filled by LIST:VOLT command.

  • Page 178: Multiple External Devices Using The Low-Going Leading Edge Of An External Pulse

    NOTES: 1. The power supply is assumed to be operating in constant voltage mode. 2. The WAIT commands provide a method to synchronize multiple instruments to a common con- trol pulse. This example assumes BOP and a number of switching DVMs are connected to a Unit Under Test (UUT).

  • Page 179: Lev El ]:Lim It [:Both]? Query

    This command must be preceded by LIST:CURR or LIST:VOLT command, otherwise a -221 “Settings Conflict” error results. The entries of the dwell list must match the values in the current or voltage list, otherwise a -236 “Lists Unbalanced” error results. (See Figures B-6 and B-7.) VOLT B.86 [SOURce:]VOLTage[:LEVel][:IMMediate][:AMPlitude] COMMAND Syntax:...

  • Page 180: Lev El ]:Lim It :Pos Itive ? Query

    VOLT:LIM:POS? B.93 [SOURce:]VOLTage[:LEVel]:LIMit:POSitive? QUERY Syntax: Short Form: [SOUR:]VOLT[:LEV]:LIM:POS? <value> Long Form: [SOURce:]VOLTage[:LEVel]:LIMit:POSitive? <value> Description: Identifies the software limit value for positive output voltage specified by the user. VOLT:MODE B.94 [SOURce:]VOLTage:MODE COMMAND Syntax: Short Form: [SOUR:]VOLT:MODE (FIX | LIST | TRAN <nn> | EXT | GAIN | PROT | HALT) Long Form: [SOURce:]VOLTage:MODE (FIXed | LIST | TRANsient <nn>...

  • Page 181: B-9 Using Prot:lim:pos And Prot:lim:pos Commands To Set Asymmetrical Limits

    NOTE: The power supply is assumed to be operating in constant voltage mode. VOLT:PROTECT:LIMIT:POS 5 Sets positive voltage protection limit to +5V. VOLT:PROTECT:LIMIT:NEG 15 Sets negative voltage protection limit to -15V. VOLT:PROTECT 10 Attempts to set voltage protection levels to ±10V. No error generated. VOLT:PROT:POS? Returns 5 (positive voltage protection set to +5V since 5 is less than VOLT:PROT:NEG?

  • Page 182: Lev El ]:Prot Ect :Pos Itive Command

    VOLT:PROT:POS B.102 [SOURce:]VOLTage[:LEVel]:PROTect:POSitive COMMAND Syntax: Short Form: [SOUR:]VOLT[:LEV]:PROT:POS <exp_value> Long Form: [SOURce:]VOLTage[:LEVel]:PROTect:POSitive <exp_value> where <value> is between minimum (box) value (Figure 1-3) and 1% above rated (nominal) output voltage. Description: Establishes the positive protection limit for voltage; maximum is 1% greater than rated output voltage. VOLT:PROT:POS? B.103 [SOURce:]VOLTage[:LEVel]:PROTect:POSitive? QUERY Syntax:...

  • Page 183: Query

    B.109 [SOURce:]VOLTage[:LEVel]:PROTect:LIMit:POSitive? QUERY VOLT:PROT:LIM:POS? Syntax: Short Form: [SOUR:]VOLT[:LEV]:PROT:LIM:POS? Long Form: [SOURce:]VOLTage[:LEVel]:PROTect:LIMit:POSitive? Returns: <exp_value> Description:Identifies the maximum value possible for the positive protection limit for voltage. VOLT:TRIG B.110 [SOURce:]VOLTage[:LEVel]:TRIGgered[:AMPlitude] COMMAND Syntax: Short Form: [SOUR:]VOLT[:LEV]:TRIG[:AMP] <exp_value> Long Form: [SOURce:]VOLTage[:LEVel]:TRIGgered[:AMPlitude] <exp_value> <exp_value> = digits with decimal point and Exponent, e.g., 2.71E1 for 27.1 Description: Programs voltage value to be transferred to output by *TRG command.

  • Page 184: B-4 Questionable Event Register, Questionable Condition Register And Questionable Condition Enable Register Bits

    STAT:OPER? B.115 STATus:OPERation[:EVENt] QUERY Syntax: Short Form: STAT:OPER[:EVEN]? Long Form: STATus:OPERation[:EVENt]? Return Value: <int_value> Description: Indicates changes in conditions monitored by Operational Event Register (see Table B-3). Returns the value of the Operation Event register. The Operation Event register is a read-only register which holds (latches) all events that occur.

  • Page 185: Using Status Commands And Queries

    NOTES: 1. The power supply is assumed to be operating in constant voltage (CV) mode. 2 Examples below are intended only to illustrate command functions. Refer to PAR. 3.5.2 for programming techniques to optimize performance. OUTP:ON Sets output on. STAT:PRES Operation Condition and Questionable Condition registers are reset.

  • Page 186: B.128 System:communication:serial:pace Command

    SYST:COMM:GPIB:ADDR B.122 COMMAND SYSTem:COMMunication:GPIB:ADDRess Syntax: Short Form: SYST:COMM:GPIB:ADDR<INT VAL> 0 to 30 Long Form: SYSTem:COMMunication:GPIB:ADDRess<INT VAL> 0 to 30 Description:Sets selected power supply GPIB address. NOTE: After executing this command, subse- quent commands must be directed to the new GPIB address. Requires MEM:UPD (PAR. B.12) to save for power up.

  • Page 187: B.130 System:communication:serial:prompt Command

    SYST:COMM:SER:PROM B.130SYSTem:COMMunication:SERiaL:PROMpt COMMAND Syntax: Short Form: SYST:COMM:SER:PROM {ON | OFF} or {0 | 1} Long Form: SYSTem:COMMunication:SERial:PROMpt {ON | OFF} or {0 | 1} Description: Enables (1 or ON) or disables (0 or OFF) prompt (see PAR. 3.5.6.2.3). Sending 1 or ON causes the unit to return >...

  • Page 188: Setting The Unit To Remote Mode Via Serial (Rs 232) Port

    Description: Identifies whether unit it in remote mode (1) or local mode (0) during serial (RS 232) communi- cation. See PAR. 3.5.6.3 and Figure B-11. *IDN? Unit responds with KEPCO,BOP 50-20,E1234,1.66 (typical). OUTP? Unit responds with 0 indicating output is off SYST:REM? Unit responds with 0 indicating unit is in local mode.

  • Page 189: Using System Commands And Queries

    SYST:SET B.144 SYSTem:SET COMMAND Syntax: Short Form: SYSTem:SET {CM0 | CM1 | DCL0 | DCL1 | LF0 | LF1 | RO0 | RO1} Long Form: SYSTem:SET {CM0 | CM1 | DCL0 | DCL1 | LF0 | LF1 | RO0 | RO1} Description: Establishes Device Clear, Line Feed, OUTP command and Reset functions.

  • Page 190: B-5 Error Messages

    2yy02,”CROWBAR ACTIVE” the BOP power supply or an auxiliary power supply, such as 2yy03,”DEVICE TURNED OFF” Kepco’s MST, MAT, MBT or low power (under 1KW) BOP, connected to the BITBUS. The last two digits of the error 2yy04,\”CURRENT FAULT” 2yy05,”POWER LOSS”...

  • Page 191: Bop-1K

    TABLE B-5. ERROR MESSAGES (CONTINUED) ESR ERROR BIT SET ERROR MESSAGE EXPLANATION (SEE PAR. A.5) -311,”Memory Error” Device Error bit 3 *SAV (save), *RCL (recall), MEMory:SAVE, MEMory:UPDAte or CALibrate:STORe error -314,”Save/recall Memory Lost” Device Error bit 3 A memory location that was saved earlier was lost due to a flash error in Analog processor memory.
  • Page 193 . Repeat for all parameters, then to exit or to save for power-up (see PAR. 3.3.7). KEPCO, INC. 131-38 SANFORD AVENUE FLUSHING, NY. 11355 U.S.A. TEL (718) 461-7000 FAX (718) 767-1102 http://www.kepcopower.com email: hq@kepcopower.com ©2005, KEPCO, INC 228-1530-R8A 3/19/12 Data subject to change without notice...
  • Page 194 +Voltage Max, -Voltage Min, +Current Max or -Current Min as desired, , press CLEAR to set to zero, then to exit or to save for power-up (see PAR. 3.3.4). Can I further customize the configuration? Yes, contact Kepco for further information.

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