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Chroma 6430 Use Manual

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Programmable AC Source
6430/6420/6415
User's Manual
Version 1.4
June 2008
P/N A11 000054

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Summary of Contents for Chroma 6430

  • Page 1 Programmable AC Source 6430/6420/6415 User’s Manual Version 1.4 June 2008 P/N A11 000054...
  • Page 2 The information in this document is subject to change without notice. Chroma ATE INC. makes no warranty of any kind with regard to this manual, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. Chroma ATE INC.
  • Page 3 Any recommendations made by Chroma for use of its products are based upon tests believed to be reliable, but Chroma makes no warranty of the results to be obtained. This warranty is in lieu of all other warranties, expressed or implied, and no representative or person is authorized to represent or assume for Chroma any liability in connection with the sale of our products other than set forth herein.
  • Page 4 “ ” indicates that the level of the specified chemical substance exceeds the threshold level specified in the standards of SJ/T-11363-2006 and EU 2005/618/EC. Chroma is not fully transitioned to lead-free solder assembly at this moment; however, most of the components used are RoHS compliant.
  • Page 5 CE-Conformity Declaration For the following equipment: Product Name: Programmable AC Source Model Name: 6430/6420/6415 Manufacturer’s Name: Chroma ATE Inc. Manufacturer’s Address: 66 Hwa-Ya 1st Rd., Hwa-Ya Technical Park, Kuei-Shan Hsiang, Taoyuan Hsien, Taiwan is herewith confirmed to comply with the requirements set out in the Council...
  • Page 6 WARNINGS given elsewhere in this manual will violate safety standards of design , manufacture , and intended use of the instrument. Chroma assumes no liability for the customer‘s failure to comply with these requirements. BEFORE APPLYING POWER Verify that the product is set to match with the line voltage.
  • Page 7 SAFETY SYMBOLS DANGER - High voltage. Explanation: To avoid injury, death of personnel, or damage to the instrument, the operator must refer to an explanation in the instruction manual. Protective grounding terminal: To protect against electrical shock in case of a fault.
  • Page 8 Date Version Revised Sections Aug. 2002 Complete this manual May 2005 Change the address and phone number of Chroma Dec. 2007 Add “Material Contents Declaration” Modify the Accuracy of Voltage and Frequency in the section of “Specifications”. Mar. 2008 Add the description of “NOTICE” in the section of “Range”.

  • Page 9: Table Of Contents

    Programmable AC Source 6430/6420/6415 User‘s Manual Table of Contents An Overview of the Products..................1-1 Introduction ........................1-1 The Features .......................1-1 Specifications ......................1-2 Operational Panels .....................1-4 1.4.1 Front Panel ........................1-4 1.4.2 Rear Panel ........................1-6 Installation........................2-1 Inspection ........................2-1 Preparation for Use.....................2-1 Requirements of Input Power..................2-1...
  • Page 10 Programmable AC Source 6430/6420/6415 User‘s Manual Ext Prog........................3-8 Measurement ......................3-9 3.7.1 Select the Items of Measurement .................. 3-9 3.7.2 Functions of Measurement ..................3-10 Local Operation......................3-10 Protection .........................3-10 Theories of Operation.....................4-1 General Information ....................4-1 Description of Overall System ...................4-1 AC/DC Power Stage Converter..................4-3 DC/DC Power Stage Converter..................4-3...
  • Page 11 Programmable AC Source 6430/6420/6415 User‘s Manual 6.6.2 Command Dictionary ....................6-9 Status Reporting .......................6-21 6.7.1 Questionable Status ..................... 6-21 6.7.2 Standard Event Status....................6-22 6.7.3 Status Byte Register ....................6-22 Error Messages......................6-23 Appendix A TTL I/O Pin Assignment................A-1...

  • Page 13: An Overview Of The Products

    The PWM (Pulse Width Modulation) approach of the power stage provides full volt-ampere and current rating to loads. The 6430 supplies power up to 3000 VA, the 6420 to 2000 VA, and the 6415 to 1500 VA.

  • Page 14: Specifications

    Programmable AC Source 6430/6420/6415 User‘s Manual 1.3 Specifications The operational specifications of Chroma 6430/6420/6415 are listed in the subsection. All specifications are tested according to the standard Chroma test procedures. All specifications are based on the resistor load of 25 ± 1°C unless specified otherwise.
  • Page 15 An Overview of the Products MEASUREMENT Voltage Range 0-150V/0-300V 0-150V/0-300V 0-150V/0-300V 0-150V/0-300V 0-150V/0-300V Accuracy 0.1%F.S.+0.1% 0.1%F.S.+0.1% 0.1%F.S.+0.25% 0.1%F.S.+0.25% 0.1%F.S.+0.25% Resolution 0.1V 0.1V 0.1V 0.1V 0.1V Current Range 0-2A/2-10A 0-4A/4-20A 0-70A 0-100A 0-140A Accuracy 0.2%F.S.+0.5% 0.2%F.S.+0.5% 0.2%F.S.+0.4% 0.15%F.S.+0.4% 0.1%F.S.+0.4% Resolution 0.01A 0.01A 0.01A 0.01A...

  • Page 16: Operational Panels

    Programmable AC Source 6430/6420/6415 User‘s Manual 1.4 Operational Panels 1.4.1 Front Panel Figure 1-1 Front Panel Table 1-1 The Description of the Front Panel Item Symbol Description Alphanumeric LED: A row of red seven-segment LEDs are equipped for displaying setup messages and numeric value of settings, or measurement results.
  • Page 17 PC to front panel keypad. LOCAL OUT/QUIT command key : In normal operation, pressing of the OUT/QUIT key may enable the 6430/6420/6415 output power to the loading -------- or devices. If the user has entered into setup procedures, this key --------- will be used to quit from present setting routine.

  • Page 18: Rear Panel

    Programmable AC Source 6430/6420/6415 User‘s Manual 1.4.2 Rear Panel Figure 1-2 Rear Panel Table 1-2 The Description of the Rear Panel...
  • Page 19 An Overview of the Products Item Name Description The label marks model, serial no. of AC Source and input rating. Label Only for 6460, 6490, 6560 and 6590 Printer Port The BNC connector inputs amplitude of control waveform from Ext. Ref. external device.

  • Page 21: Installation

    The input power terminal block is located on the rear panel of the instrument. Please refer to figure 2-1. Input of the 6430/6420/6415 must be connected from a three-wired single phase AC power outlet. The current rating of the power line input must be larger than or equal to that of...

  • Page 22: Output Connection

    Programmable AC Source 6430/6420/6415 User‘s Manual ** WARNING ** To protect operating personnel, the wire connected to the GND terminal must be connected to an earth ground. In no event shall this instrument be operated without adequate ground connection. Figure 2-1 Input Connection 2.4 Output Connection...

  • Page 23: Remote Sense Connection

    All LEDs on the front panel, including alphanumeric and indicator LEDs, are lighted for three seconds or so. Then, the seven-segment LEDs and alphanumeric LEDs will display “SELF TEST”. It means that the 6430, 6420 or 6415 is running a self-test.
  • Page 24 Frequency module test failure After the self-test is completed, the LEDs will show the current set values of V, F and the measured value of I, and indicate that the 6430, 6420 or 6415 is ready for use as below: 0.0 60.0 0.00...

  • Page 25: I/O Connectors (Optional)

    Installation 2.7 I/O Connectors (Optional) Figure 2-3 GPIB Figure 2-4 RS-232C...
  • Page 26 Programmable AC Source 6430/6420/6415 User‘s Manual Figure 2-5 APG Figure 2-6 Optional Board...

  • Page 27: Local Operation

    The Chroma 6430/6420/6415 AC sources can be configured to operate in local or remote operational mode. The operation of the 6430/6420/6415 through a keypad on the front panel for data entry as well as test execution in local mode will be described here while that through a remote GPIB controller in remote mode in Chapter Six.

  • Page 28: Rs-232C

    This note can be applied to all circumstances when the user enters numeric values. 3.2.2 RS-232C The 6430/6420/6415 can be operated remotely by the use of RS-232C bus. Communication protocol is set as follows: Example: set baud rate = “19200”, parity “ODD”.

  • Page 29: Over Voltage Protection

    “EVEn”, and “odd” respectively. 3.2.3 Over Voltage Protection The user can set the limit of output voltage, so when the 6430/6420/6415 output power, the voltage will never exceed the user-defined upper limit in order to protect the loading devices. Example: set the upper limit of output voltage as 120V.

  • Page 30: System Test

    Note 2 : In step 3 after pressing , the 6430/6420/6415 will perform the system test. ENTER Upon completion of the test, the 6430/6420/6415 will display the test result as “PASS” or “FAIL”. In case of failure please contact your dealer for help. 3.2.6 Power on Status The user can set the initial value on output voltage, frequency, and range when the power switch is on.

  • Page 31: Remote Sense (On/Off)

    The programmable range of rms current limit is from 0 to 30 amperes for 6430, 0 to 20 amperes for 6420, and 0 to 15 amperes for 6415. Operational example of setting I limit as 8A is given below:...

  • Page 32: Range

    Programmable AC Source 6430/6420/6415 User‘s Manual Action 7-segment LED Display 1. Enter into shift mode by pressing key, and the 40.5 60.0 0.00 SHIFT “SHIFT” LED will be on. 2. Press to turn on the “I LIMIT” LED. 40.5 30.0 0.00 I limit 3.

  • Page 33: Save And Recall

    3.4 Save and Recall The 6430/6420/6415 AC sources provide nine memory channels for the user to save a set of frequently used V, F as well as V full range, and recall them for later use.

  • Page 34: Data Lock

    “LOCK” LED. 3.6 Ext Prog The 6430/6420/6415 AC sources allow the user to use an external DC voltage level as a linear control reference for output Vrms. The relationship of Vout and Vref is listed as follows: Vout = Vref ÷...

  • Page 35: Measurement

    OUT/QUIT 3.7 Measurement The 6430/6420/6415 can measure the actual performances of V, F, I, P, PF, and CF of a connected load alone when they output power to the load. During operation, the data of the measurement of V and F are always shown on the LEDs at the left and middle zones. The right zone will display any of the measurement of I, P, PF, and CF according to the user‘s choice.

  • Page 36: Functions Of Measurement

    Power factor, calculation formula = true power/(Vrms×Irms) 3.8 Local Operation During remote operation, the 6430, 6420, or 6415 is controlled by a remote GPIB or RS-232C controller, and the green indicator LED of “RMT” remains lighted. When the user wants to return from remote operation to local operation, he has to press in “SHIFT”...

  • Page 37: Theories Of Operation

    4. Theories of Operation 4.1 General Information The 6430, 6420 or 6415 AC power source consists of 14 main boards and other discrete components. Each of them has its own specific function that will be described in the subsections below.
  • Page 38 Programmable AC Source 6430/6420/6415 User‘s Manual 6430/6420/6415 Hardware Structure K Board D Board M1 Board Switch-mode Input Power LED Display Keyboard Power Supply 190 ~ 250 V Rotary Encoder & Fan Controller 50/60 Hz I Board BM Board Measure Voltage,...

  • Page 39: Ac/Dc Power Stage Converter

    Theories of Operation 4.3 AC/DC Power Stage Converter The switch -mode PWM converter is composed of a power factor controller and a boost circuit on I board. To avoid the switching losses, the user has to turn on the converter at zero voltage. The auxiliary DC voltages identified as 15V, −15V, 12V, 5V, and −24V are generated on the M1 board.

  • Page 40: Measurement

    Programmable AC Source 6430/6420/6415 User‘s Manual 4.7 Measurement The measurement circuits on BM board monitor voltage, current, power, etc. Voltage and current from the output are scaled down first, and then convert the RMS value to DC voltage. The measurement of power is achieved by multiplying the scaled voltage and current with an integrated multiplier of output DC voltage.

  • Page 41: Self-Test And Troubleshooting

    5.2 Self-Test Routine The 6430, 6420 or 6415 AC power source has a built-in test/adjustment program for the user to test or adjust the instrument. Do not adjust any component without prior approval. Please consult the distributor for the information of adjustment.
  • Page 42 Programmable AC Source 6430/6420/6415 User‘s Manual Problem Reason Solution Poor Voltage HIGH or LOW line of output Isolate the output line from the case. Accuracy voltage may be shorted to the case ground. Poor Aging of components results in Refer to service manual for internal measurement of deviation of characteristics.

  • Page 43: Remote Operation

    Remote Operation 6. Remote Operation 6.1 General Information The AC source can be remotely controlled through the GPIB or the RS-232C interface. It is recommended that the timeout should not be less than one second. For RS-232C interface, only the signals of TXD, RXD, RTS, and CTS can be used for data transfer through it. The signals of CD, DTR, and DSR are shorted in the AC source.

  • Page 44: Introduction To Programming

    Items within the square brackets are optional. For example, OUTP[:STATe] means that :STATe may be omitted. 6.3.2 Numerical Data Formats Formats : The 6430/6420/6415 AC Sources accept numeric data of the following formats (see next page): Symbol Description Example Digits with no decimal point. The decimal point is 123, 0123 assumed to be to the right of the least significant digit.

  • Page 45: Boolean Data Format

    Remote Operation Flexible decimal form that includes NR1, NR2, NR3 12, 12.3, 1.23E2 NRf+ Expanded decimal form that includes NRf, MINimum 12, 12.3, 1.23E2 and MAXimum. MINimum and MAXimum are the MIN, minimum and maximum limit values for the MAXimum parameters.

  • Page 46: Basic Definition

    Programmable AC Source 6430/6420/6415 User‘s Manual 6.3.5 Basic Definition Command Tree Table: The commands of AC source are based on a hierarchical structure, also known as a tree system. To obtain a particular command, the full path to it must be specified. This path is represented in the table by placing the highest node in the hierarchy in the far left position.

  • Page 47: Traversal Of The Command Tree

    Remote Operation Examples: VOLT?, OUTPut ON. Program Message Unit Separator (';'): It separates the program message unit elements from one another in a program message. Example: VOLT 110 ; FREQ 120 <PMT> Program Message Terminator (<PMT>): A program message terminator terminates a program message. Three permitted terminators are: (1) <END>: end or identify( EOI).

  • Page 48: Execution Order

    Programmable AC Source 6430/6420/6415 User‘s Manual (1) FREQ 120;VOLT 110 <PMT> will set the frequency to 120Hz and voltage to 110 Volt. Note that FREQ 120 does not change the header path to FREQ:CW. (2) VOLT:LEV 110;RANG 150 <PMT> will set the rms output voltage to 110 Volt and the output voltage range to 150V range.
  • Page 49 Remote Operation :CREStfactor? Returns the output current crest factor :FREQuency? Returns the output frequency :POWer [:REAL]? Returns the output real power :PFACtor? Returns the output power factor :VOLTage :AC? Returns the output AC rms voltage OUTPut [:STATe] <Boolean> Enables/Disables the output :PROTection :CLEar Causes the latched protection to be cleared...
  • Page 50 Programmable AC Source 6430/6420/6415 User‘s Manual :RANGe 150|300 Sets the output voltage range :AUTO <Boolean> Enables/Disables AUTO output voltage range mode STATus PRESet Presets the PTR, NTR and Enable Registers of Questionable and Operation status :OPERation [:EVENt]? Returns the content of the Event Register...

  • Page 51: Command Dictionary

    Remote Operation *OPC? Returns “1” when operation completes *RST Reset *SRE <NRf> Sets Service Request Enable Register *STB? Returns Status Byte Register *TST? Performs self-test, then returns result *WAI Wait-to-continue 6.6.2 Command Dictionary MEASure:CURRent:AC? FETCh:CURRent:AC? Description: These queries return the output AC rms current. It is noted that there are two kinds of commands to get measurement data.
  • Page 52 Programmable AC Source 6430/6420/6415 User‘s Manual MEASure:FREQuency? FETCh:FREQuency? Description: These queries return the output frequency. Query Syntax: MEASure[:SCALar]:FREQuency? FETCh[:SCALar]:FREQuency? Parameters: None Return Parameters: <NR2> Query Example: MEAS:FREQ? returns the output frequency. MEASure:POWer:AC? FETCh:POWer:AC? Description: These queries return the output real power.
  • Page 53 Remote Operation Query Example: MEAS:VOLT:AC? returns the output AC rms voltage. OUTPut Description: This command enables or disables the AC source output. Syntax: OUTPut[:STATe] <Boolean> Parameters: 0 | 1 | OFF | ON *RST Value: OFF Example: OUTP ON enables output. OUTP 0 disables output.
  • Page 54 Programmable AC Source 6430/6420/6415 User‘s Manual FREQuency Description: This command sets the output frequency. Syntax: [SOURce:]FREQuency[:CW|:FIXed] <NRf+> Parameters: 45 to 500 *RST Value: 60 Hz Example: FREQ 120 It sets the output frequency to 120Hz. FREQ MAX It sets the output frequency to 500Hz.
  • Page 55 Remote Operation VOLTage:LIMit Description: This command sets the maximum bounds on the AC rms output voltage value. Setting a larger output voltage value will cause the output to be clamped to the LIMit value. Syntax: [SOURce:]VOLTage:LIMit[:AMPLitude] <NRf+> Parameters: 0 to 300 *RST Value: 300 Example: VOLT:LIM 130 It sets the AC rms output voltage limit to 130V.
  • Page 56 Programmable AC Source 6430/6420/6415 User‘s Manual Return Parameters: 0 | 1 Query Example: VOLT:RANG:AUTO? It returns the condition of AUTO range mode. STATus:PRESet Description: This command sets the PTR, NTR and Enable Registers of Questionable and Operation status as follows: all defined bits of PTR Registers to 1, all bits of NTR and Enable Registers to 0.
  • Page 57 Remote Operation Bit configuration of Questionable Status Register 8-15 Position Condition OTP UVP OPEN PFO Bit Weight Remarks: FAN : Fan failure : Over current protection : Over temperature protection : Short circuit protection UVP : Under voltage protection : Power failure protection : Over power protection OPEN : Open circuit protection STATus:QUEStionable?
  • Page 58 Programmable AC Source 6430/6420/6415 User‘s Manual Summary-Message of the Status Byte Register. Syntax: STATus:QUEStionable:ENABle <NRf> Parameters: 0 to 32767 Example: STAT:QUES:ENAB 8 It enables OTP event to be reported in the Status Byte Register. Query Syntax: STATus:QUEStionable:ENABle? Return Parameters: <NR1>...
  • Page 59 Remote Operation Parameters: None Return Parameters: <NR1>, <SRD> Query Example: SYSR:ERR? It returns the next error number and description. SYSTem:LOCal Description: This command sets the AC source to local state, which enables the control of front panel. It can only be used with the RS-232C interface. Syntax: SYSTem:LOCal Parameters: None Example: SYST:LOC...
  • Page 60 Programmable AC Source 6430/6420/6415 User‘s Manual Bit configuration of Standard Event Status Register Bit position Condition Bit Weight Remarks: PON : Power on QYE : Query error CME : Command error Execution error DDE : Device-dependent error OPC Operation complete...
  • Page 61 Field 3: Serial Number or 0 Field 4: Firmware Level or equivalent Query Example: *IDN? Return Example: CHROMA ATE, 6430, 0, 0.00 *OPC, Operation Complete Command Description: This command causes the AC source to set the OPC bit of Standard Event Status Register when all pending operations are completed.
  • Page 62 Programmable AC Source 6430/6420/6415 User‘s Manual Bit configuration of Status Byte Register Bit position Condition OPER QUES Bit Weight Remarks: RQS Request service MSS : Master Summary Status Event Status Bit MAV : Message Available QUES : Questionable status OPER :...

  • Page 63: Status Reporting

    Remote Operation *TST?, Self-Test Query Description: This query causes an internal self-test and reports the result. If the AC source completes the self-test without any detected errors, it returns a 0, otherwise it returns a 1. Note that during the self-test caused by *TST, the output voltage will reach 300V.

  • Page 64: Standard Event Status

    Programmable AC Source 6430/6420/6415 User‘s Manual (5) Enable Register: It selects which event bits in the Event Register will cause the QUEStionable Status summary-message of the Status Byte Register to be TRUE when it is set. It is cleared at power-on or by the STATus:PRESet command.

  • Page 65: Error Messages

    Remote Operation (3) Bit 5: Event Status Bit (ESB) Summary-Message. Its state indicates if one or more of the enabled events defined in Standard Event Status have occurred since the last reading or clearing of the Standard Event Status Register. (4) Bit 6: Master Summary Status (MSS) Message or Request Service (RQS) Message.
  • Page 66 Programmable AC Source 6430/6420/6415 User‘s Manual −103 Invalid separator −104 Data type error −108 Parameter not allowed [more parameters are received than expected] −109 Missing parameter [less parameters are received than required] −110 Command header error −111 Header separator error −112...

  • Page 67: Appendix A Ttl I/O Pin Assignment

    TTL I/O Pin Assignment Appendix A TTL I/O Pin Assignment 9 pins D type female connector: Signal Signal Pin No. Description Pin No. Description TRANS Transient AC ON Output enabled TRIG Trigger Only for 6460, 6490, 6560 and 6590 -------...

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