OPERATING MANUAL AGILENT 603xA FAMILY AUTORANGING SYSTEM DC POWER SUPPLIES AGILENT Part No. 5959-3342 Microfiche Part No.
CERTIFICATION Agilent Technologies certifies that this product met its published specifications at time of shipment from the factory. Agilent Technologies further certifies that its calibration measurements are traceable to the United States National Bureau of Standards, to the extent allowed by the Bureau’s calibration facility, and to the calibration facilities of other International Standards Organization members.
Safety Summary The following general safety precautions must be observed during all phases of operation of this instrument. Failure to comply with these precautions or with specific warnings elsewhere in this manual violates safety standards of design, manufacture, and intended use of the instrument. Agilent Technologies assumes no liability for the customer’s failure to comply with these requirements. GENERAL This product is a Safety Class 1 instrument (provided with a protective earth terminal).
SAFETY SYMBOLS Direct current Alternating current Both direct and alternating current Three-phase alternating current Earth (ground) terminal Protective earth (ground) terminal Frame or chassis terminal Terminal is at earth potential. Used for measurement and control circuits designed to be operated with one terminal at earth potential.
Declaration Page DECLARATION OF CONFORMITY according to ISO/IEC Guide 22 and EN 45014 Manufacturer’s Name: Agilent Technologies Manufacturer’s Address: 150 Green Pond Road Rockaway, New Jersey 07866 U.S.A.
Acoustic Noise Statement Herstellerbescheinigung Diese Information steht im Zusammenhang mit den Anforderungen der Maschinenlärminformationsverordnung vom 18 Januar 1991. * Schalldruckpegel Lp < 70 dB(A) * Am Arbeitsplatz * Normaler Betrieb * Nach DIN 45635 T. 19 (Typprüfung) Manufacturer’s Declaration This statement is provided to comply with the requirements of the German Sound Emission Directive, from 18 January 1991. This product has a sound pressure emission (at the operator position) < 70 dB.
Table Of Contents 1. General Information Introduction .................................................................................................................................................. 11 Description .................................................................................................................................................... 11 Safety Considerations ........................................................................................................................
Table Of Contents (continued) Error .......................................................................................................................................................... 43 Local Operation............................................................................................................................................. 43 Constant Voltage Operation ........................................................................................................................
Table Of Contents (continued) Remote Sensing......................................................................................................................................... 69 Series Operation ............................................................................................................................................ 69 FLT & Remote INH Connections ...............................................................................................................
Table Of Contents (continued) Register Functions................................................................................................................................... 107 Status Programming Examples................................................................................................................ 108 Status Byte Register .................................................................................................................................. 108 The RQS Bit.................
1 General Information Introduction This manual contains specifications, installation instructions, and operating instructions for System Power Supply Models: Agilent 6030A, 6031A, 6032A, 6033A, 6035A, and 6038A. Refer to "Related Documents" for other information concerning these products. Description This system power supply is an autoranging GP-IB power supply. It uses power MOSFETs in a 20 kHz switching converter to provide an autoranging output characteristic with laboratory performance.
A fault indicator (FLT) and remote inhibit (INH) circuit provides additional shutdown protection, should either the GP-IB and/or controller fail. The FLT circuit provides the user with a means of knowing the status of any unmasked fault register bit independently of the SRQ function available through the GP-IB. You don’t have to rely on the controller to inform you of a fault within the power supply.
1494-0060 5060-2865 5060-2866 59510A 59511A 5062-3960 5062-3961 5062-3978 5061-9694 5062-3990 5061-2072 5062-3984 5062-4003 1460-1345 5062-3998 5062-4027 1494-0065 06033-60005 5060-0138 5060-2860 59510A 59511A Rack slide kit, non tilting Service kit, includes extenders for control and power mesh boards, three cables to allow GP-IB and PSI boards to lie on table outside unit, and control board test connector. FET service kit. Includes FETs and all components that should be replaced with FETs.
The serial number prefixes listed on the front of this manual indicate the versions of the supplies that were available when the manual was issued. If the serial prefix of your supply is not listed in this manual, the manual may include a yellow "Manual Change’’ sheet. That sheet updates this manual by defining any differences between the version of your supply and the versions included here, and may also include information for correcting any manual errors.
Related Documents The following documents may be useful for your GP-IB systems. The Agilent documents can be ordered from your local Agilent Sales Office. Agilent 6033A/38A Service Manual, Agilent part number 5959-3346. Agilent 6030A/31A/32A/35A Service Manual, Agilent part number 5959-3344. Tutorial Description of the Agilent Technologies Interface Bus, Agilent Part Number 5952-0156, November 1987 ANSI/IEEE Std 488.
Table 1-1. Performance Specifications Agilent Technologies Model DC Output: Voltage, current and power spans indicate range over output may be varied using front panel controls. Load Effect (Load Regulation) Voltage load effect is given for a load current change equal to the current rating of the supply. Current load effect is given for a load voltage change equal to the voltage rating of the supply.
6030A 6031A 6032A 6035A NOTES. 0-200 V 0-17 A 1000-1200 W 0.0l% + 5 mV 0-20 V 0-120 A 840-1072 W 0.0l% + 3 mV 0-60 V 0-50 A 1000-1200 W 0.0l% + 5 mV 0-500 V 0-5 A 1000-1050 W 0.0l% + 40 mV 0.0l% + l0 mA 0.0l% + l5 mA 0.0l% + l0 mA 0.03%+34 mA 0.0l% + 5 mV 0.0l% + 2 mV 0.0l% + 3 mV 0.0l% + l3 mV 1. Not specified 2. Initially, for each degree below 20°C the ripple increases 2.4 mV/°C. After loadis applied for 15 minutes, the increase becomes 1.4 mV/°C. 3 After a five-minute wait. 0.
Table 1-2. Supplemental Characteristics (continued) DC Floating Voltage: Either output terminal may be floated up to the following voltage (including the output voltage) from earth ground: ± 240 Vdc on Models 6031A, 6032A, 6033A, and 6038A ± 550 Vdc on Models 6030A and 6035A Exceeding these voltage can result in damage to the equipment. Remote Sensing: The power supply maintains specifications at the load with up to 0.5 volt drop per load lead.
Figure 1-1. Output Characteristic Curve Agilent Model Vp1 Ip1 Vp2 Ip2 Vp3 Ip3 6030A 200 V 5A 120 V 10 A 60 V 17 A 6031A 20 V 50 A 14 V 76 A 7V 120 A 6032A 60 V 17.5 A 40 V 30 A 20 V 50 A 6033a 20 V 10 A 14 V 17.2 A 6.7 V 30 A 6035A 500 V 2A 350 V 3A 200 V 5A 6038A 60 V 3.
General Information
2 Installation Introduction This section contains instructions for checking and repacking the supply, bench or rack mounting, connecting the supply to ac input power, and converting the supply from one line voltage to another if required. Instructions for connecting load and GP-IB cables, and for setting the GP-IB address are given in Section III. Note Agilent 603xA power supplies generate magnetic fields which may affect the operation of other instruments.
Figure 2-1. Outline Diagram Bench Operation The supply cabinet has plastic feet, which are shaped to ensure self aligning when stacked with other Agilent Technologies System II cabinets. Rack Mounting The supply can be mounted in a standard 19-inch rack enclosure. Rack mounting accessories for this unit are listed in the ACCESSORIES paragraph in Section I. Complete installation instructions are included with each rack mounting kit. Support rails are also required for rack mounting.
Agilent Models 6033A, 6031A, 6032A, 6036A. Figure 2-2 illustrates the standard configuration of power-cord plugs used by Agilent Technologies. To connect input power, to the instrument proceed as follows: a. Remove the AC filter assembly cover by unscrewing the four locating screws. b. Insert the power cord through the strain relief clamp located on the cover. c. Connect the wires to the terminal block in accordance with the prevailing color codes.
d. Replace the cover, tighten all four screws and tighten the strain relief clamp. (All four screws must be tightened for unit to meet RFI specifications.) e. Connect the other end of the power cord to an appropriate power source. Note Connections to the ac power line must be made in accordance with applicable electrical codes. The international color code for identifying mains supply conductors is green/yellow, blue, and brown for earth, neutral, and line respectively.
b. Use a small-blade screwdriver to set the two switch sections of S2 to match the pattern silk-screened on main board for nominal line voltage to be used. For example, to set switches for 120 V operation, move forward switch section so that its white slot is toward front of supply and move rearward switch section so that its white slot is toward rear of the instrument. c. Set switch S1 to match the rearward section of S2, i.e.
Figure 2-3.
AC Line Impedance Check The power supply is designed for proper operation with line impedance typically found in ac power lines. However, if the supply is connected to an ac power line having high impedance combined with line voltage near the minimum specified value, (e.g., 104 Vac for nominal 120 Vac), the unit will go out of regulation if it is asked to provide full rated output power.
sense barrier block barrier block screws FLT/INH connector output buss bar screws output buss bar sense screws red/black sense wires 2 - terminal barrier block M3.5 X 0.6 X 6 mm (qty 8) 4 - terminal removable connector M5 X 0.8 X 12 mm (qty 4) M2 X 0.
3 OPERATING INSTRUCTIONS Introduction This section describes the operating controls and indicators, turn-on checkout procedures, and operating procedures and considerations for the power supply. Local (front-panel) and remote (via GP-IB) operation are described separately, but the user should become familiar with both methods of operation. Information in pages 1-43 of this section applies to both local and remote operation.
Before the instrument is turned on, all protective earth terminals, extension cords, and devices connected to the power supply should be connected to a protective earth ground. Any interruption of the protective earth grounding will cause a potential shock hazard that could result in personal injury. This instrument can be damaged by electrostatic discharge into the GP-IB and control connectors, or the switches on the rear panel while the unit is turned on.
Load Resistance B equals the crossover resistance for the particular combination of voltage and current settings shown on the graph. Either the CV or CC LED will light. If the load resistance increases, the voltage setting decreases, or the current setting increases, the power supply will operate in CV mode. Conversely, if the load resistance decreases, voltage setting increases, or current setting decreases, the power supply will operate in CC mode.
Number 2 Table 3-1. Controls and Indicators (continued) Controls/Indicators Description GP-IB Status Indicators These four LEDs indicate the status of the power supply on the GP-IB. Page RMT (green) indicates that power supply is under remote (GP-IB) control. 43 LSN (green) indicates that power supply is addressed to listen. 45 TLK (green) indicates that power supply is addressed to talk. 45 SRQ (green) indicates that power supply is requesting service from controller.
Number Table 3-1. Controls and Indicators (continued) Controls/Indicators Description Page 5 Numeric Display Two 3-1/2 digit alphanumeric displays with automatically positioned decimal point that ordinarily indicate output VOLTS and AMPS (see items 6 & 7). When power supply is turned on all segments light for approximately 1 second. During an error condition, power supply output may exceed display range; displays will indicate + OL or - OL.
Once the all-indicators-off period is over, the GP-IB address switch setting is displayed on the meter displays for one second. For example, if the address switches were set for address 5, the display would be: Adr 5 If the unit fails any of the self tests an error code is displayed on the meter displays. The unit will not respond to any commands, either from the front panel or GP-IB, and it should be removed for service. See the Service manual for a listing of the self test failure codes.
d. Turn OUTPUT ADJUST knob clockwise, press DISPLAY SETTINGS switch, and check that AMPS setting has increased. CV indicator should be on and CC indicator should be off. e. Press momentary-contact OUTPUT ADJUST pushbutton switch once; VOLTAGE indicator should turn on and CURRENT indicator should turn off. f. Turn OUTPUT ADJUST knob clockwise and check that output voltage increases from zero to full output voltage as indicated on VOLTS display.
per lead. Table 3-2 lists resistivity for various wire sizes and the maximum lengths that may be used to limit voltage drop to 0.5 volts for various currents. Lengths listed are the sum of the lengths of the ( + ) and ( - ) load wires. Lengths are given in meters and (feet).
If multiple loads are connected to one supply, each load should be connected to the supply’s output terminals using separate pairs of connecting wires. This minimizes mutual coupling effects and takes full advantage of the supply’s low output impedance. Each pair of connecting wires should be as short as possible and twisted or shielded to reduce noise pickup and radiation.
Figure 3-5. Connecting a Bypass Capacitor Overvoltage Protection (OVP) The overvoltage trip point is adjusted at the front panel. The approximate trip voltage range is from zero volts to approximately 107% of maximum rated voltage of the power supply. When the OVP circuit trips, the power supply output is disabled and delivers no output power, and the OVP and DISABLED indicators turn on. Adjustment. OVP is set by the recessed single-turn OVP ADJUST potentiometer on the front panel.
Foldback Protection In some applications either CV or CC mode may be regarded as an error condition. The foldback protection feature protects sensitive loads by disabling the power supply output if the unit switches to the prohibited mode. In local control, foldback protection is toggled on or off by the FOLDBACK pushbutton switch. The output will be disabled if the power supply switches from whichever mode (CV or CC) is in operation when foldback is enabled to the other mode.
Figure 3-6. Remote Voltage Sensing Because the sensing leads carry only a few milliamperes, the wires used for sensing can be much lighter than the load leads. Each sense lead should have no more than 0.2 ohms resistance. Use the resistivity columns in Table 3-2 to determine the minimum wire size for the length of sense leads being used. The sense leads should be a shielded, twisted pair to minimize the pickup of external noise.
Table 3-4. Mode Switches Programming Mode GP-IB/RPG Voltage Mode Switches Resistance CV Circuits B6 B5 B4 0 0 1 0 0 0 1 0 0 CC Circuits B3 B2 B1 0 0 1 0 0 0 1 0 0 Typically, only one programming mode is used for both output parameters (voltage and current). However, the mode switches allow voltage and current to be programmed independently. For example, voltage could be programmed digitally, either via GP-IB or front panel, while current is resistance programmed.
1. The total number of devices is no more than 15. 2. The total length of all the cables used is no more than two meters times the number of devices connected together, up to an absolute maximum of 20 meters. (The length between adjacent devices is not critical as long as the total accumulated cable length is no more than the maximum allowed.) NOTE IEEE Std 488.1-1987 states that caution should be taken if individual cable length exceeds 4m.
Foldback. If foldback protection is enabled (FOLDBACK ENABLED LED on) and the power supply switches to the prohibited mode (CV or CC), the power supply output will be disabled and the FOLDBACK indicator turned on. Press the FOLDBACK pushbutton switch to reset the foldback protection circuit and restore the power supply output. Unless the conditions (voltage setting, current setting, load resistance) that caused foldback are changed, the circuit will trip again when the output is restored.
Constant Current Operation To set up the power supply for constant current operation: a. With power supply turned off, connect load to output terminals. b. Turn on power supply. Hold in DISPLAY OVP pushbutton switch and set OVP ADJUST potentiometer for desired OVP trip voltage. In CC mode the voltage setting will limit output voltage under quiescent conditions, and the OVP circuit provides added protection against hardware faults. c.
Multiline Message Control Functions. The Acceptor Handshake, Source Handshake, Listener, and Talker functions are implemented by the interface circuits of the power supply and the controller and require no action by the user. The LSN or TLK indicators turn on when the power supply is addressed to listen or talk. (The talker function includes serial poll, see below). Service Request. Service request is a uniline message that can be asserted by the power supply to interrupt the controller.
Remote/Local. The remote/local function allows the power supply to operate in either local (front panel) or remote (via GP-IB) control. The user can send Local Lockout to the power supply via GP-IB to disable the front-panel LCL switch only. With Local Lockout, the controller determines if the unit operates in local or remote control; this enables the controller to prevent anyone else from returning the power supply to local control. Device Clear.
Holding the LCL switch in for one second causes the power supply’s GP-IB address to be displayed on the front panel until the switch is released or two seconds elapse. The address switches are also used during troubleshooting to select which self tests are run in test mode. If the power supply has been serviced be certain to check the GP-IB address switches. Note that the top two switches are not address switches. Be careful to use only the five bottom switches for setting the address.
Table 3-6. Initial Conditions Voltage Current OUTPUT ADJUST Control OVP Soft Voltage Limit 0 Volts 0 Amps Enabled to adjust CURRENT determined by setting of OVP ADJUST potentiometer on front panel Agilent 6030A - 204.750 volts Agilent 6031A - 20.475 volts Agilent 6032A - 61.425 volts Agilent 6033A - 20.475 volts Agilent 6035A - 511.875 Agilent 6038A - 61.425 volts Soft Current Limit Agilent 6030 A -17.403 amperes Agilent 6031A -122.85 amperes Agilent 6032A - 51.1875 amperes Agilent 6033A - 30.
Plus and minus signs are considered numeric characters. All numeric data fields may contain an optional plus or minus sign on both the number itself and the scale factor, such as +1.23E-2. All numeric data fields may contain leading spaces, and embedded spaces will be accepted between optional signs and digits, digits and E, decimal point and E, and E and optional sign. The following two examples contain one embedded space in each position in which they are allowed: + 1.23 E + 4 + 123.
Command Table 3-7 GP-IB Commands *Range or **Response To Query Description Page Any of these commands is used to program output voltage. Initial Condition: 0 V 55 Any of these commands is used to program output current. Initial Condition: 0 A 56 **VSET xx.xxx **ISET xx.xxx Used to read voltage and current settings 56 VOUT? IOUT? **VOUT xx.xxx **IOUT xx.xxx Used to measure and read output voltage or current. 56 OVP? **OVP xx.
Table 3-7 GP-IB Commands (continued) *Range or **Response To Query Description Page DLY x DLY xS *0--31.999 s 57 DLY xMS *0--31999 ms Any of these commands is used to program the delay time after a new output voltage or current is implemented, or RST or OUT ON command is received. During delay power supply disables CV, CC, and OR conditions from being labeled as faults, and disables foldback protection. DLY? **DLY xx.xxx Used to read delay time setting. 57 OUT OFF OUT 0 .
Command Table 3-7 GP-IB Commands (continued) *Range or **Response To Query Description T TRG Page Used to implement commands that have been sent to and held by the power supply (power supply continues to operate with previous values until trigger command is received). See HOLD command. The device trigger interface message performs the same function. 59 STO x RCL x *0-15 Cause power supply to store and recall up to 16 sets of the complete machine state except for output on/off.
Page Command Table 3-7 GP-IB Commands (continued) *Range or **Response To Query Description UNMASK? **UNMASK xxx 62 Used to read which bits in the status register have been enabled to set bits in the fault register (i.e.,which power supply conditions are defined as faults). xxx is decoded using bit weights in Table 3-9. FAULT? **FAULT xxx SRQ OFF SRQ 0 SRQ ON SRQ 1 SRQ? **SRQ 0 or **SRQ 1 CLR ERR? **ERR xx Used to read which bits have been set in the fault register.
Page Command Table 3-7 GP-IB Commands (continued) *Range or **Response To Query Description TEST? **TEST xx Causes power supply to run selftests and report any failures. Type of tests run depends on whether power supply output is on or off. 63 ID? **Agilent 603xA or Causes power supply to report its model number and any options that affect the unit’s output capability. 65 **Agilent 603xA, OPT 100 [Bracketed commands are equivalent.
Table 3-8. Format of Numbers Sent from Power Supply For these query commands: VSET? ISET? DLY? VOUT? IOUT? VMAX? IMAX? the response consists of a header followed by a space* followed by 5 decimal digits with an embedded decimal point, in this format: d.dddd to < header > < space > dddd. d The header consists of the query alpha characters without the question mark. Leading zeroes are sent as spaces, except that the first digit to the left of the decimal point is never sent as a space.
VSET? and addressing the power supply to talk. The power supply can be instructed to measure its actual output voltage by sending: VOUT? The results are placed on the GP-IB when the power supply is addressed to talk, in this format (using 20 as an example): VOUT 20.000 NOTE The programming resolution (LSB) for the VSET and ISET commands are specified in Table 1-1. The power supply will round off settings received to the nearest multiple of these values. Current Setting.
Soft Limits. The power supply can be sent soft limit values that place maximum limits on the voltage and current programming values that will be accepted. If the power supply receives a programming value that exceeds the soft limit, it will ignore the command, turn on the ERROR indicator, and set the ERR bits in the status register and in the serial poll register. The power supply will not accept soft limit values that are lower than present output values or values that are being held.
DLY 0.500 Note that during the delay period CV and CC are masked from the foldback protection feature also. Delay does not affect the setting of the CV, CC, or OR bits in the status register or accumulated status register; delay affects only the setting of those bits in the fault register. Delay does not affect conditions other than CV, CC, or OR that may cause service request, nor will delay affect CV, CC, or OR if they occur at any time other than after a programmed output change. Output On/Off.
Reset. Reset restores the power supply output if it has been disabled by OVP, foldback, or remote inhibit. The output returns to the present voltage and current settings; the values may be changed while the output is disabled. The power supply is reset with the command: RST Note that if the condition which caused OVP or foldback remains, the power supply output will be disabled again after reset.
completed with the first. Therefore, sending device trigger after sending a command assures that the second instrument cannot begin to receive commands until the first instrument has processed its commands. For example, assume the following commands are sent to four power supplies assigned to addresses called PS1, PS2, PS3, and PS4: OUTPUT PS1; "HOLD ON’’ 5A’’ OUTPUT PS2; "HOLD ON; lA" TRIGGER PS1 TRIGGER PS2 OUTPUT PS3; "HOLD OFF; 10A" TRIGGER PS3 OUTPUT PS4; "HOLD OFF.
For example, if bits for both ERR (128) and CC (2) are set, the power supply would send ASCII digits 1 3 0 (128 +2 = 130). Bits remain set in the status register as long as the corresponding conditions are true. Bit Position Bit Weight Condition CV CC OR OV OT AC FOLD ERR RI 8 256 RI 7 128 ERR Table 3-9.
Note that bits can be set in the fault register only when there is a change in either the status register or the mask register. Therefore, if a bit is set in the mask register (unmasked) after the corresponding condition becomes true in the status register, the associated bit will also be set in the fault register. Bits may be set in the mask register (conditions unmasked) in either of two ways.
SRQ? and addressing the power supply to talk. The response from the power supply is in this format: SRQ 0 or SRQ 1 in which 0 indicates that service request capability is disabled, and 1 indicates it is enabled. Note that service request capability for power on is controlled by the rear-panel PON SRQ switch, the setting of which will not be indicated in response to an SRQ? query. Clear.
Table 3-10. Status Register Errors Description Error # 0 No Errors 1 Unrecognized Character—A character like ! " # was received 2 Improper Number—A numeric character ( + -. 0...9) was received but the following characters did not 3 Unrecognized String—A string of consecutive alpha characters that could not be found in the table of command words was received. Cause could be a spelling error or missing separator. For example, OUTON would be seen as one word, and would be an error.
When the power supply is addressed to talk after and addressing the power supply to talk. The response from TEST? has been received, it responds in this format: the power supply will be either: TEST x where x is a decimal number from 0 to 22. See the Service Manual for a listing of the selftest failure codes. TEST 0 indicates that all tests passed. The test command does not complete until the power supply control circuits have had time to settle. This prevents perturbations on the power supply output.
The following paragraphs discuss in greater detail the methods of remotely programming the output voltage or current using either a resistance or voltage input. Whichever method is used, the wires connecting the programming device must be shielded to reduce noise pickup. The outer shield of the cable should not be used as a conductor, and should be connected to ground at one end only. Refer to Table 3-4 for mode-switch settings for voltage or resistance programming.
Figure 3-10. Voltage Programming of Output Voltage Constant Current Output, Resistance Control. The setup shown in Figure 3-12 allows the output current to be varied by using an external resistor to program the supply. The discussion on Page 56 for constant voltage operation also applies for constant current operation. If the programming terminals (IP to P) become open circuited during resistance programming the output current will tend to rise above rating.
Figure 3-12. Resistance Programming of Output Current Figure 3-13. Voltage Programming of Output Current Auto-Parallel Operation Two units can be connected in an auto-parallel combination to provide twice the output current capability. One of the power supplies, the master, is programmed normally via the GP-IB. The other power supply, the slave, is analog programmed by the master. The slave may be connected to the GP-IB for readback, status, etc.
Figure 3-14. Auto-Parallel Operation Setting Voltage and Current. Program the slave unit’s output voltage above the master’s to avoid interference with masterunit CV control. The slave unit’s mode switches disable the slave unit’s digital current setting from having any effect in autoparallel operation. Program the master unit to the desired output voltage and 50% of total current. Verify that the slave is in CC operation.
It is not recommended that Agilent 6035A supplies be connected in series. if you do so, the common connection between the two supplies must be connected to earth ground (see Figure 3-15). Add the voltage settings of each power supply together to determine the total output voltage. Set the current limits for each power supply to the maximum that the load can handle without damage.
Figure 3-16. FLT/INH Connections Figure 3-17. INH Example Figure 3-18.
Figure 3-19a. FLT and INH with Multiple Supplies Figure 3-19b. Typical INH Setup Closing the hood will not re-enable the supply, and during a serial poll the controller would be made aware that a fault exists via the FAU bit in the serial poll register. The fault register must now be read to reset the FLT and RI bit. Finally sending CLR will initialize the supply to its power on state (see Table 3-6). Figure 3-18 shows an example of how to physically isolate the output of the supply from the load.
In Figure 3-21 the FLT output drives not only the INH input, but also triggers a sequential down programmer circuit. This would allow any supply in the system to trigger the sequential down programmer (via their FLT outputs) and disable the supplies in a predetermined order (via their INH inputs). Timing relationships for FLT and INH are shown in Figure 3-20. Figure 3-20. Timing Diagram Figure 3-21.
A 100 VAC Input Power Option 100 General Information Description Option 100 is a modification of the power supply that involves changing the values of resistors located in the Overvoltage Protection and Power Limit Circuits. It also entails recalibrating the unit and changing the Front Panel These changes allow the unit to operate at a lower line voltage of 90-105 Vac, while operating on the same line frequency of 48-63 Hz.
Section ll Manual Changes For Agilent Models 6030A, 6031A, 6032A and 6035A: on page 2-7 (AC line Impedance Check, step b), where the maximum output voltages are tabulated, change the voltages as shown below: 6030A change 65 V to 50 V 6031A change 8 V to 6 V 6032A change 22 V to 13.5 V 6035A change 220 V to 150 V Section lll Manual Changes On page 3-10 (Overvoltage Protection), change 107% to 90%. On page 3-11 (Monitor Signals), change “0-5 Volts” to ‘’0-4.5 Volts’ ‘ .
On page 65 (Analog Programming, 2nd paragraph), change the second sentence to read: “Resistance of 0 to 3.33 K ohms programs the output voltage from 0 to full scale. and a resistance of 0 to 4 K ohms programs the output current from 0 to full scale.”. On page 65 (Analog Programming, 4th paragraph), change the second sentence to read, “A voltage of 0 to 4.25 V programs the output voltage from 0 to full scale and a voltage of 0 to 5 volts programs the output current from 0 to full scale.”.
B Blank Front Panel Option 001 Introduction This appendix describes the blank front panel option (Option 001) for the power supply. Option 001 is designed for applications in which front panel operation and monitoring are unnecessary. It has no front-panel controls and indicators except for the LINE switch and OVP ADJUST control found on the standard unit, and a pilot light to indicate when ac input power is turned on. All other characteristics of the standard power supply are retained.
Agilent Model Agilent 6030A Agilent 6031A Agilent 6032A Agilent 6033A Table B-1. ID Query Response Response ID Agilent 6030A or ID Agilent 6030A, Opt 100 ID Agilent 6031A or ID Agilent 6031A, Opt 100 ID Agilent 6032A or ID Agilent 6032A, Opt 100 ID Agilent 6033A or ID Agilent 6033A, Opt 100 If the power supply responds correctly, the microcomputer, associated circuits and software are almost certainly functioning properly.
Use format appropriate for your computer.): 10 OUTPUT 705; “VOUT?” 20 ENTER 705; A$ 30 OUTPUT 705; “OVP?” 40 ENTER 705; B$ 50 DISP A$,B$ 60 GOTO 10 70 END Turn OVP ADJUST potentiometer counterclockwise while observing VOUT and OVP readings on computer display. VOUT should drop to about 0 volts as OVP is adjusted below 10 volts. Stop program. Send string: STS? And address the power supply to talk. The response should be: STS 8 indicating that the OVP circuit has tripped.
C Standard Commands for Programmable Instruments (SCPI) ABOUT THIS APPENDIX IF YOU WILL NOT BE PROGRAMMING USING SCPI COMMANDS, YOU DO NOT HAVE TO READ THIS APPENDIX. This appendix documents the Standard Commands for Programmable Instruments (SCPI), formerly known as TMSL, and applies to Agilent Models 603xA Series Autoranging System DC Power Supplies with the serial numbers shown on the cover page of this manual. READER PATH All readers should read the "INTRODUCTION" of this appendix.
2 ANSI/IEEE Std 488.2-1987. IEEE Standard Codes, Formats, Protocols, and Common Commands. Recommended as a reference if you will do fairly sophisticated programming. Helpful for finding the precise definitions of certain types of SCPI message formats, data types, or common commands. 1 To obtain a copy, contact your local Agilent Sales Office. Available from IEEE (Institute of Electrical and Electronics Engineers), 345 East 47th Street, New York, NY 10017, USA.
LINKED CONNECTIONS When programming with SCPI commands, it is possible to connect up to 15 additional power supplies per GP-IB address using linked connections, and still communicate with each supply individually. Installation As shown in Figure C-lb, the first power supply in a linked connection is connected directly to the controller via a GP-IB cable. It is the only power supply connected directly to the bus and has a unique primary bus address.
Setting the Address NOTE The primary and secondary addresses cannot be selected over the GP-IB. However, there are important differences in addressing power supplies over the bus depending on if only primary or a combination of primary and secondary addresses are used. (See ’’Addressing Over the Bus’’). Primary Address--is set using the switches A1 through A5 on the rear panel of the GP-IB Board as explained in Section III of this manual.
LANGUAGE DICTIONARY This section gives the syntax and parameters for all the IEEE 488.2 common commands and SCPI commands used by the Agilent Series 603xA power supplies. It is assumed that you are familiar with the introductory reference material (see "Related Documents" in Section I), which explains the terms, symbols, and syntactical structures used here and gives an introduction to programming. Original language (ARPS) commands are covered in Section III of this manual.
Figure C-2. Common Command Syntax Diagram Figure C-3 is a tree diagram of the subsystem commands. Commands starting at the root direction are listed as either single commands or command subsystems. Command subsystems may consist of a single command, but usually are comprised of a set of commands that extend two or more levels below the root. Commands followed by a question mark (?) take only the query form. Except as noted in the syntax descriptions, all other commands take both command and the query form.
*CLS Meaning and Type Clear Status Device Status Description This command causes the following actions (see "Status Reporting" for descriptions of all registers): ♦ Clears the following registers without affecting any corresponding Enable Registers or Transition Filters: ◊ Standard Event Status Event Register ◊ Operation Status Event Register ◊ Questionable Status Event Register ◊ Status Byte Register ♦ Clears the Error Queue ♦ Forces a previously executed *OPC command to appear as if it had been completed
Command Syntax Parameters Default Value *RST Value Example Query Syntax Returned Parameters Related Commands *ESE 0 to 255 (See *PSC) 0 *ESE 129 *ESE? (Register value) *ESR? *PSC *STB? *ESR? Meaning and Type Device Status Event Status Register Description This query reads the Standard Event Status Event register. Reading the register clears it. The bit configuration of this register is the same as the Standard Event Status Enable register (*ESE).
Description This command causes the interface to set the OPC bit (bit 0) of the Standard Event Status register when the power supply has completed all pending operations. (See *ESE for the bit configuration of the Standard Event Status register.) Pending operations are complete when: ♦ ♦ ♦ all previous commands have been executed any change in the output level caused by previous commands has been completed (completion of settling time, relay bounce, etc.
If the command parameter = 0, then the above registers are not cleared at power turn on, but are programmed to their last previous state. This can enable the power supply to request service at turn on. Any non-zero parameter causes both registers to be cleared at turn on, preventing the power supply from being capable of requesting service at that time. See "Status Reporting" for details of these registers. *PSC causes a write cycle to nonvolatile memory.
*RST Meaning and Type Device State Reset Description This command reset the power supply to a factory-defined state as defined below. *RST also forces an ABORt and an OUT:PROT:CLE command. CURR[:LEV] [:IMM] * CURR[:LEV]:TRIG* CURR:PROT:STAT OFF INIT:CONT OFF OUTP OFF OUTP:PROT:DEL* OUTP:REL OFF OUTP:REL:POL NORM VOLT[:LEV][:IMM]* VOLT[:LEV][:TRIG]* *Model-dependent value. See ISET, DI,Y, and VSET in Table 3-7 of Section III..
*SRE Meaning and Type Device Interface Service Request Enable Description This command sets the condition of the Service Request Enable Register. This register determines which events of the Status Byte Register (see *STB for its bit configuration) are summed into the MSS (Master Status Summary) and RQS (Request for Service) bits. RQS is the service request bit that is cleared by a serial poll; the MSS is not cleared when read.
*TRG Meaning and Type Device Trigger Trigger Description This command, which is essentially the same as the Group Execute Trigger () and the subsystem TRIG[:IMM] signals, generates a trigger to the power supply. Command Syntax *TRG *TST? Meaning and Type Device Test Test Description This query causes the power supply to do a self test and report any errors. Query Syntax Returned Paramters *TST? 0 Indicates power supply passed self-test. Nonzero Indicates a self-test failure.
Current Subsystem This subsystem programs the output current of the power supply. CURR[:LEV] Sets the immediate current level or the pending triggered current level of the power supply. The immediate level is the current programmed for the output terminals. The pending triggered current level is a stored value that will be transferred to the output when a trigger occurs. If no pending triggered level has been programmed, then the immediate command programs both levels to the same value.
Initiate Subsystem This subsystem enables the trigger system. When a trigger is enabled, the triggering action will occur upon receipt of a , *TRG, or TRIGger command. If a trigger circuit is not enabled, all trigger commands are ignored. The actions of the two initiate commands are: ♦ ♦ If INIT:CONT is OFF, then INIT[:IMM] arms the trigger system for a single trigger. If INIT:CONT is ON, then the trigger system is continuously armed and INIT[:IMM] is redundant.
OUTP:PROT There are two output protection commands that do the following: OUTP:PROT:CLE Clears any OV (overvoltage), OC (overcurrent, unless set via external voltage control),OT (overtemperature), or RI (remote inhibit) status conditions. If the power supply is configured with the Agilent 59510A/llA Relay Accessory, it will be restored to the state it was in before the protection circuit tripped.
Status Subsystem This subsystem programs the power supply status registers. The power supply has two groups of status registers; Operation and Questionable.
Query Syntax Returned Parameters Examples STATus:OPERtion:EVENt? (Register Value) STAT: OPER: EVEN? STATUS: OPERATIONAL: EVENT? NTR/PTR Commands These commands allow you to set or read the value of the Operation NTR (NegativeTransition) and PTR (Positive-Transistion) registers.
STAT:QUES:COND? Returns the value of the Questionable Condition register. That is a read-only register which holds the real-time (unlatched) questionable status of the power supply. Query Syntax Examples Returned Parameters STATus:QUEStionable:CONDition? STAT: QUES: COND? STATUS: QUESTIONABLE: CONDITION? (Register value) STAT:QUES:ENAB Sets or reads the value of the Questionable Enable register.
Command Syntax Parameters Default Value Examples Query Syntax Returned Parameters STATus:QUEStionable:NTRansition STATus:QUEStionable:PTRansition 0 to 32727 0 STAT:QUES:NTR 16 STATUS:QUESTIONABLE:PTR 512 STAT:QUES:NTR? STAT:QUES:PTR? (Register value) SYST:ERR? Returns the next error number followed by its corresponding error message string from the remote programming error queue. The queue is a FIFO (first-in, first-out) buffer that stores errors as they occur.
Trigger Subsystem This subsystem controls remote triggering of the power supply. TRIG[:IMM] When the trigger subsystem is armed, TRIG generates a trigger signal. The trigger will then: 1. Initiate the output change from the pending level to the immediate level (see CURR[:LEV]:TRIG and VOLT[:LEV]:TRIG). 2. Clear the WTG bit in the Status Operation Condition register. 3. If INIT:CONT has been sent, the trigger subsystem is immediately rearmed for subsequent triggers.
Query Syntax Returned Parameters [SOURce]:VOLTage[:LEVel] [:IMMediate][:AMPLitude]? [SOURce]:VOLTage[:LEVel] [:IMMediate][:AMPLitude]? MAX [SOURce] :VOLTage[:LEVel] [:IMMediate] [:AMPLitude] ? MIN [SOURce]:VOLTage[LEVel]:TRIGger [:AMPLitude]? [SOURce]:VOLTage[LEVel]:TRIGger [:AMPLitude]? MAX [SOURce]:VOLTage[:LEVel]:TRIGger [:AMPLitude]? MIN VOLT? and VOLT:TRIG? return presently programmed voltage levels. If the TRIG level is not programmed, both returned values are the same.
Bit Table C-5.
Figure C-4. Power Supply Status Structure Register Condition PTR Filter NTR Filter Event Enable Table C-2.
Example Example 1: Example 2: Example 3: Example 4: Example 1: Table C-3. Examples of Questionable Status Register Bit Programming Signal Cond Reg PTR NTR Event Enable Change Filter Filter Reg Reg 0 1 OT 1 0 1 1 UNR 0=1or 1 1 1 1 RI RI x 0 x x 1 0 Explanation of Examples Allow an overtemperature event to set the QUES summary bit.
NOTE Since the power supply impliments *PSC, this register is cleared at power turn on if *PSC = 1 Status Programming Examples ESE 60 Enables all error conditions into the ESB summary bit ESE 129 Enables only the power-on and operation complete events into the ESB summary bit Status Byte Register The Status Byte register summarizes the information from all other status groups and is fully defined in the IEEE 488.2 Standard Digital Interface for Programmable Instrumentation.
Status Programming Examples SRE 255 Enables all bits to generate seruice requests SRE 239 Excludes the MAV bit from gerlerating a service request SRE 8 Enables only Questionable events to generate service requests Output Queue The Output Queue is a FIFO (first-in, first-out) data structure that stores power supply-to-controller messages until the controller reads them. Whenever the queue holds one or more bytes, it sets the MAV bit (4) in the Status Byte register.
Hardware Errors During Operation. If an error does not occur during selftest but after the power supply has been operating correctly for a time, error -240 is placed in the error queue. Most subsequent commands will not be executed and will also cause one or more - 240 errors to be placed in the queue after each command.
Table C-5. Summary of Error Messages (continued) Error String [Description/Explanation/Examples] Error Number -178 -180 -181 -183 -184 - 200 - 220 - 221 - 222 - 223 - 240 - 241 - 270 - 272 - 273 - 276 - 277 - 310 - 313 -330 - 350 - 400 - 410 - 420 - 430 - 440 Expression data not allowed Macro error Invalid outside macro definition [e.g., ’$1’ outside macro definition.
Command Summary (continued) Subsystem Commands Parameters Command OUTP[:STAT] OUTP? OUTP:PROT:CLE OUTP:PROT:DEL ABOR OUTP:PROT:DEL? OUTP:REL:POL OUTP:REL:POL? OUTP:REL[:STAT] OUTP:REL:? STAT:OPER:COND? STAT:OPER:ENAB STAT:OPER:ENAB? STAT:OPER[:EVEN]? STAT:OPER:NTR STAT:OPER:NTR? STAT:OPER:PTR STAT:OPER:PTR? STAT:PRES STAT:QUES:COND? STAT:QUES:ENAB STAT:QUES:ENAB? STAT:QUESL:EVEN]? TRIG[:IMM] TRIG:SOUR TRIG:SOUR? [SOUR]:VOLT[:LEV][:IMM][:AMPL] [SOUR]:VOLT? [SOUR]:VOLT[:LEV]:TRIG[:AMPL] [SOUR]:VOLT[:LEV]:TR
ARPS/SCPI Commands Table C-6 lists the ARPS commands and compares them with the equivalent SCPI commands recognized by the Agilent series 603xA power supplies. Note that the Agilent Series 603xA power supplies use only a subset of SCPI commands. Use the SYST:LANG command to change between the two languages.
D Programming the Agilent 603xA Power Supplies Using Basic Introduction The examples in this appendix are provided as an introduction to programming the Agilent 603xA power supplies with HPSeries 200/300 controllers using the BASIC programming language. The programming examples explain some of the more frequently used programmable functions of the power supplies. NOTE: The examples in this appendix use the original language commands (ARPS) as described in section III of this manual.
Note the use of a semicolon as a separator between the device command and the data in the second example program line above. The semicolon suppresses the carriage return and line feed which would be sent with a comma. The carriage return and line feed sent with a comma would cause an unrecognized statement. A non-zero value of current should be programmed even without a load if constant voltage operation is desired.
120 130 140 ! 150 ! 160 ! 170 180 190 200 210 220 230 240 250 260 270 280 290 300 310 320 330 340 350 360 370 380 390 400 410 420 430 440 450 460 470 480 490 500 510 520 530 540 ! DEF FNSettled(OPTIONAL Band, Rdgs.Timelimit) BAND=SETTLING BAND IN VOLTS RDGS=READINGS WITHIN BAND TIMELIMIT=SETTLING TIME ALLOWED, SECONDS COM /Ps/ @Ps OUTPUT @Ps:”VSET?” ENTER @Ps;Vset SET TIMEDATE 2.1E+11 ! Band_p=.
Output Inhibit / Enable The output of the supply can be inhibited without disturbing other programmed functions by sending the device command "OUT OFF" . While the supply is disabled in this manner, it can still accept new programming commands. The device command "OUT ON" will re-enable the output. Power Supply Status The power supply makes available several forms of status information. The present-status register contains continuously updated status information.
80 90 100 110 120 130 140 ! DEF FNOr_mode COM /Ps/ @Ps OUTPUT @Ps; “STS” ENTER @Ps; Stat RETURN BIT (Stat .
Fault and Mask Registers Two additional registers provide the user with the ability to obtain selected subsets of the information available in the status register. The fault register can then be read to determine which condition caused the interrupt. Bits in both registers are assigned as in the present-status register. The mask register allows the user to select which bits in the present status register can set bits in the fault register.
Condition Bit position Bit Weight Where • RQS ERR RDY • • PON FAU 7 128 6 64 5 32 4 16 3 8 2 4 1 2 0 1 • - Not Used FAU - Fault Condition PON - Power on Reset RDY - Ready to Process Commands ERR - Programming Error RQS - Requesting Service The ERR bit is set when a remote programming error is detected and is cleared when the "ERR?" device command is received. (See the section on detecting programming errors.) The FAU bit is the logical OR of all the bits in the fault register.
Service Request Service request provides the programmer with the means for interrupting the controller when a fault condition occurs. Service is requested when the FAU bit in the serial poll register, which is the logical OR of all bits in the fault register, becomes true with SRQ enabled. The mask register is used to specify conditions which can cause an interrupt. The fault register can be read to determine which condition caused an interrupt.
Delay Time When changing the output voltage or current level of the supply it may change state to overrange, CV, or CC mode during the transition. This may not be desirable if an interrupt is enabled upon a mode transition. To deal with such situation, a time delay is implemented, during which CC, CV and OR bits are masked to the fault register. In addition, to avoid nuisance tripping, the conditions are also masked to the foldback feature during the delay time.
80 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 250 260 270 280 290 300 310 320 330 340 350 360 370 380 390 SUB Err_trap OFF KEY COM /Ps/ @Ps OUTPUT @Ps:”ERR?” ENTER@Ps;Err OUTPUT 2 USING "#.
Protection Functions Overvoltage The trip level of the overvoltage protection circuit can be read by sending the device command "OVP?" and entering the result. If the overvoltage protection circuit has tripped the supply can be reset by sending the "RST" device command . Foldback In certain applications, it may be desirable to have an overcurrent protection similar in function to the over-voltage protection. An application of this feature might occur in the testing of P.C. board subassemblies.
Advanced Topics Hold Mode At times it may become necessary to program several power supplies synchronously. The hold mode provides advantages over other less precise means of synchronous programming. With hold mode, functions with first and second rank are all loaded into first rank buffers. When triggered with the "TRG" or "T" device commands or the group execute trigger interface management command, second rank is loaded. Voltage and current settings, foldback and mask register have dual rank storage.
130 140 150 160 170 180 190 200 210 220 230 240 250 260 270 280 290 OUTPUT @Ps:"VSET 3.ISET 6.7.STO3" OUTPUT @Ps:"VSET 4,ISET 5.STO4" OUTPUT @Ps:"VSET 5,ISET 4,STO5;CLR;OUT ON" ! ! NOTE: CLR COMMAND DOES NOT CLEAR THE STATE REGISTERS. THE LAST ! FOR STATES HAVE FOLDBACK ENABLED.
Index A AC bit .........................................................................................................................................................................61 accumulated status ....................................................................................................................................................119 AH1 ......................................................................................................................................................
FOLDBACK indicator..........................................................................................................................................32, 43 foldback protection .............................................................................................................................................68, 125 fuse - line ....................................................................................................................................................................
OC bit .........................................................................................................................................................98, 101, 105 OPC bit ...............................................................................................................................................................89, 105 OPER bit............................................................................................................................................................
serial poll ....................................................................................................................................................45, 108, 121 service request ..........................................................................................................................................................122 SH1..................................................................................................................................................................
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Manual Updates The following updates have been made to this manual since the print revision indicated on the title page. 2/24/99 Figure 2-4 has been added to page 28. Pages 23 to 28 have been reformatted to make room for this figure. A Caution has been added to the *ESE, *PSC, *SAV, and *SRE, commands between pages 89 and 93. 2/01/00 All references to HP have been changed to Agilent. All references to HP-IB have been changed to GPIB.
