YOKOGAWA DL7440 User Manual
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YOKOGAWA DL7440 User Manual

YOKOGAWA DL7440 User Manual

Digital oscilloscope power supply analysis function g4 option
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User's
Manual
Yokogawa Electric Corporation
DL7440/DL7480
Digital Oscilloscope
Power Supply Analysis Function
(/G4 Option)
User's Manual
IM 701450-61E
2nd Edition

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Summary of Contents for YOKOGAWA DL7440

  • Page 1 User’s DL7440/DL7480 Manual Digital Oscilloscope Power Supply Analysis Function (/G4 Option) User’s Manual IM 701450-61E 2nd Edition Yokogawa Electric Corporation...
  • Page 2 Thank you for purchasing the DL7440 or DL7480 Digital Oscilloscope (herein after referred to as the DL7400) with the Power Supply Analysis Function (/G4 option, the /G4 option includes user-defined computation). This User’s Manual describes only the power analysis function. For information about other functions, operating procedures, and handling precautions of the DL7400, see the following manuals.

  • Page 3: How To Use This Manual

    Jog shuttle & SELECT indicates selecting or setting parameters and entering values using the jog shuttle, the SELECT key, and other keys. For details on the procedure, see section 4.1 or 4.2 in the DL7440/DL7480 User’s Manual IM701450-01E . Unit k Denotes 1000.

  • Page 4: Table Of Contents

    Contents How to Use This Manual ........................ 2 Overview of the Power Analysis Function ..............4 Connecting Probes/Performing Phase Correction, Degauss, and Zero Adjustment/Deskewing ..................6 Turning ON the Power Analysis Function/Selecting the Attenuation or Current-to- Voltage Conversion Ratio of Probes/Enabling Waveform Computation Setup ..7 Correcting (Deskewing) the Difference in the Transfer Time of Analyzed Signals ..

  • Page 5: Overview Of The Power Analysis Function

    DL7400 can correct (deskew) the difference in the transfer time of the signals automatically or manually and measure the power analysis parameters. * It is recommended that YOKOGAWA products listed below be used to execute deskew and measure the power analysis parameters.
  • Page 6 Using a procedure similar to the measurement and statistical processing per cycle (see section 10.7 in the DL7440/DL7480 User’s Manual ), the measured values of waveform parameters per cycle can be determined on the displayed waveform (within the display record length), and the change over time in the measured values can be shown on the trend display.

  • Page 7: Connecting Probes/Performing Phase Correction, Degauss, And Zero Adjustment/Deskewing

    For a description of the handling of voltage probes, see the manual that came with the product. For instructions on the phase correction of probes, see section 3.5 in the DL7440/ DL7480 User’s Manual .

  • Page 8: Turning On The Power Analysis Function/Selecting The Attenuation Or Current-To-Voltage Conversion Ratio Of Probes/Enabling Waveform Computation Setup

    HISTORY START/STOP • For a description of the operation using a USB keyboard or a USB mouse, see section 4.3 in the DL7440/DL7480 User’s Manual. Press SETUP. The SETUP menu appears. Press the Power Analyze Setup soft key. The Power Analyze Setup dialog box opens.
  • Page 9 3 Turning ON the Power Analysis Function/Selecting the Attenuation or Current-to-Voltage Conversion Ratio of Probes/Enabling Waveform Computation Setup Performing Waveform Computation (Enabling Power Analysis Parameters to Be Assigned to Computed Waveforms) Use jog shuttle & SELECT to turn ON/OFF Math1 or Math2. •...
  • Page 10 (CH2, CH4, and CH6 (CH6 is available only on the DL7480)). 10A:1V or 100A:1V * The conversion notation of the YOKOGAWA 700937 Current Probe is 0.1 V/A. This indicates that the output voltage of the current probe is 1 V when the current probe measures 10 A.

  • Page 11: Correcting (Deskewing) The Difference In The Transfer Time Of Analyzed Signals

    YOKOGAWA 701935 Deskew Correction Signal Source outputs, perform zero adjustment with the vertical sensitivity (V/div, see section 5.2 in the DL7440/DL7480 User’s Manual ) set to 20.0 mA/div. If zero adjustment is not performed correctly, auto deskew may not be possible.
  • Page 12 Likewise, execute deskew on the CH3 and CH4 pair and CH5 and CH6 pair. * For a description of the edge trigger and trigger source, see section 6.5 in the DL7440/ DL7480 User’s Manual .
  • Page 13 • As necessary, execute deskew on the channel pairs of CH1 and CH2, CH3 and CH4, and CH5 and CH6. * For a description of the edge trigger and trigger source, see section 6.5 in the DL7440/ DL7480 User’s Manual IM701450-01E .

  • Page 14: Performing Automated Measurement Of Power Analysis Parameters

    CH6) that has the power analysis function turned ON, the Item Setup dialog box showing power analysis parameters appears. • On the DL7440, you can select from CH1 to CH4, Math1, and Math2. • On the DL7480, you can select from CH1 to CH8, Math1, and Math2. CH6, CH7, CH8, Math1, and Math2 appear when you press the To Page 2 soft key.
  • Page 15 The procedure is the same as steps 1 to 15 in section 10.8 (pages 10-61 to 10-63) in the DL7440/DL7480 User’s Manual IM701450-01E . If the power analysis function is turned ON, power analysis parameters are available when selecting the measurement parameters in the Item box under Area1 or Area2 in the Item dialog box.
  • Page 16 UP-P, U+pk, U-pk, Udc, Urms, Uac, Umn, Urmn, S, P, Q, Z, λ, Wp, Wp+, and Wp- Standard measurement parameters: For details on how to determine each parameter, section 10.6 in the DL7440/DL7480 User’s Manual . +OShot, -OShot, Freq, Period, Rise, Fall, +Width, -Width, Duty, Burst1, Burst2, Pulse, High, Low, AvgFreq, AvgPeriod, Int1TY, Int2TY, Int1XY, Int2XY, and delay between waveforms * For CH5, Int1XY and Int2XY are not available.
  • Page 17 Note • T in the table above is the time range of measurement specified when performing automated measurement. For the measurement range, see section 10.6 in the DL7440/DL7480 User’s Manual . • u(t) and i(t) denote the sampled data of the voltage signal and the current signal, respectively.

  • Page 18: Performing Statistical Processing On The Measured Values Of Power Analysis Parameters

    UP-P of CH1 are displayed. For a detailed explanation on statistical processing, see the explanation given in section 10.7 (pages 10-59 and 10-60) in the DL7440/DL7480 User’s Manual . IM 701450-61E...

  • Page 19: Performing Waveform Computation On Power Analysis Parameters

    Press the Math Mode soft key to select Normal. The normal computation menu opens. Press the Math1 Setup soft key. The Math1 Setup dialog box opens. * For the setup procedure of Math1 Display, see section 9.1 in the DL7440/DL7480 User’s Manual .
  • Page 20 7 Performing Waveform Computation on Power Analysis Parameters Setting the Computed Waveform of Instantaneous Power (When Power Was Selected in Step 4 on Page 18) Use jog shuttle & SELECT to set the computation source waveform, scaling, unit, smoothing, and computation start point of computed waveform Math1. Select the waveform on which to perform computation.
  • Page 21 7 Performing Waveform Computation on Power Analysis Parameters Setting the Computed Waveform of Joule Integral (When I t Was Selected in Step 4 on Page 18) Use jog shuttle & SELECT to set the computation source waveform, scaling, unit, and computation start point of computed waveform Math1. Select I Select the waveform on which to perform computation.
  • Page 22 To perform waveform computation of harmonics continuously when waveform acquisition is started, set the trigger mode to Normal. For a description of the trigger mode, see section 6.1 in the DL7440/DL7480 User’s Manual . • When the Applicable Class of the Equipment under Test Is A or B Select Harmonics.
  • Page 23 7 Performing Waveform Computation on Power Analysis Parameters • When the Applicable Class of the Equipment under Test Is D Select Harmonics. Select the waveform on which to perform computation. When Display Mode (vertical scale of the bar graph) is set to LIN, the unit is fixed to A.
  • Page 24 (deskewed). For the setup procedure, see section 4 in this manual. Turning ON/OFF the Computed Waveform Display and Computed Waveform Label See section 9.1 in the DL7440/DL7480 User’s Manual . Computed waveforms are displayed only when the computed waveform display is turned ON. Operators You can select the operator for Math1 and Math2.
  • Page 25 Resolution 10 div ÷ display record length For a description of the display record length, see appendix 1 in the DL7440/DL7480 User’s Manual. Time Window You can select the time window for operator PS. For details, see section 9.6 in the DL7440/DL7480 User’s Manual .
  • Page 26 DL7400 with the Power Analysis Function (/G4 option). For instructions on saving the data in binary format, see section 12.7 in the DL7440/DL7480 User’s Manual . IM 701450-61E...

  • Page 27: Displaying The Trend Of The Measured Values Of Waveform Parameters Per Cycle

    Press the Math Mode soft key to select Normal. The normal computation menu opens. Press the Math1 Setup soft key. The Math1 Setup dialog box opens. * For the setup procedure of Math1 Display, see section 9.1 in the DL7440/DL7480 User’s Manual .
  • Page 28 Target waveform for trend Trend (computed waveform) Explanation Turning ON/OFF the Computed Waveform Display and Computed Waveform Label See section 9.1 in the DL7440/DL7480 User’s Manual IM701450-01E . Computed waveforms are displayed only when the computed waveform display is turned ON. Operator Trend Effects of Scaling, Unit of Computed Waveform, and Linear Scaling See section 7 in this manual.
  • Page 29 UP-P, U+pk, U-pk, Udc, Urms, Uac, Umn, Urmn, S, P, Q, Z, λ, Wp, Wp+, and Wp- Standard measurement parameters: For details on how to determine each parameter, section 10.6 in the DL7440/DL7480 User’s Manual . +OShot, -OShot, Freq, Period, Rise, Fall, +Width, -Width, Duty, Burst1, Burst2, Pulse, High, Low, AvgFreq, AvgPeriod, Int1TY, and Int2TY •...

  • Page 30: Performing History Search Using Measured Values Of Power Analysis Parameters

    • On the DL7440, you can select from CH1 to CH4, Math1, and Math2. • On the DL7480, you can select from CH1 to CH8, Math1, and Math2. CH7, CH8, Math1, and Math2 appear when you press the To Page 2 soft key.
  • Page 31 • For CH5 to CH8, measurement parameters Int1XY and Int2XY are not available. The rest of the procedure is the same as steps 13 to 22 in section 10.3 (pages 10-12 and 10-13) in the DL7440/DL7480 User’s Manual . IM 701450-61E...
  • Page 32 UP-P, U+pk, U-pk, Udc, Urms, Uac, Umn, Urmn, S, P, Q, Z, λ, Wp, Wp+, and Wp- Standard measurement parameters: For details on how to determine each parameter, section 10.6 in the DL7440/DL7480 User’s Manual . +OShot, -OShot, Freq, Period, Rise, Fall, +Width, -Width, Duty, Burst1, Burst2, Pulse, Delay (delay between waveforms), High, Low, AvgFreq, AvgPeriod, Int1TY, Int2TY, Int1XY, and Int2XY * For CH5, Int1XY and Int2XY are not available.

  • Page 33: Performing Go/No-Go Determination Using Measured Values Of Power Analysis Parameters

    The measurement parameters are the same as the “Search Measurement Parameters” in section 9 (page 31) in this manual. For a detailed explanation on GO/NO-GO determination using measured values, see the explanation given in section 10.10 (pages 10-74 and 10-75) in the DL7440/DL7480 User’s Manual . Note •...

  • Page 34: Saving The Computed Results Of Harmonics

    PRINT IMAGE SAVE SHIFT operation using the jog shuttle, SELECT, and RESET, see sections 4.1 or 4.2 in the DL7440/DL7480 User’s Manual. HISTORY START/STOP • For a description of the operation using a USB keyboard or a USB mouse, see section 4.3 in the DL7440/DL7480 User’s Manual.
  • Page 35 7 and 8 in this manual, and the trend can be displayed by loading the data into the DL7400 with the Power Analysis Function (/G4 option). For instructions on saving the data in binary format, see section 12.7 in the DL7440/ DL7480 User’s Manual .

  • Page 36: Communication Commands

    This section contains only the communication commands that have been added for the Power Analysis Function (/G4 Option). For a description of the standard communication commands and other communication interfaces, see the DL7440/DL7480 Communication Interface User’s Manual IM701450-17E (CD-ROM). Command...
  • Page 37 12 Communication Commands Command Function Page MEASure Group :MEASure:CHANnel<x>:{<Parameter>}:{COUNt|SDEViation|MAXimum|MEAN|MINimum}? Queries the statistical value of the power analysis parameter. :MEASure:CHANnel<x>:{<Parameter>}:STATe Turns ON/OFF the power analysis parameter or queries the current setting. :MEASure:CHANnel<x>:{<Parameter>}:VALue? Queries the value resulting from the automated measurement of the power analysis parameter.
  • Page 38 12 Communication Commands FILE Group The commands in this group deal with the saving of the computed results of harmonics to the storage medium. :FILE SAVE HARMonics EXECute ABORt :FILE:SAVE:HARMonics:ABORt :FILE:SAVE:HARMonics:[EXECute] Function Aborts the saving of the computed results of Function Executes the saving of the computed results of harmonics.
  • Page 39 12 Communication Commands GONogo Group The commands in this group deal with setting power analysis parameters to be evaluated by the GO/NO-GO determination. :GONogo PARameter ITEM <x> TYPE <Space> <NRf> <NRf> DONTcare DONTcare LAMBda <Space> <Voltage> <Current> DONTcare DONTcare INPeak IPPeak IPTopeak IRMN...
  • Page 40 12 Communication Commands HISTory Group The commands in this group deal with executing history search using power analysis parameters. :HISTor y PARameter ITEM <x> TYPE <Space> <NRf> <NRf> DONTcare DONTcare LAMBda <Space> <Voltage> <Current> DONTcare DONTcare INPeak IPPeak IPTopeak IRMN IRMS <Space>...
  • Page 41 12 Communication Commands MATH Group The commands in this group deal with executing waveform computation using power analysis parameters. :MATH <x> CLASs <Space> HARMonics LAMBda <Space> <NRf> LIST <Space> <NRf> <Space> MAXCurrent <Current> OPOWer <Space> <NRf> POWer <Space> <NRf> SPOint <Space>...
  • Page 42 12 Communication Commands TRENd MEASure <Space> UPTopeak UPPeak UNPeak URMS UA C URMN LAMBda IPTopeak IPPeak INPeak IRMS IRMN <Standard waveform parameter> EXECute :MATH<x>:HARMonics? Example :MATH1:HARMONICS:CLASS C :MATH1:HARMONICS:CLASS? -> Function Queries all settings related to the waveform :MATH1:HARMONICS:CLASS C computation of harmonics. Syntax :MATH<x>:HARMonics? :MATH<x>:HARMonics:DMODe...
  • Page 43 12 Communication Commands :MATH<x>:HARMonics:LAMBda :MATH<x>:HARMonics:POWer Function Sets the power factor for Class C or queries the Function Sets the power value for Class D or queries the current setting. current setting. Syntax :MATH<x>:HARMonics:LAMBda {<NRf>} Syntax :MATH<x>:HARMonics:POWer {<NRf>} :MATH<x>:HARMonics:LAMBda? :MATH<x>:HARMonics:POWer? <x> = 1 to 2 <x>...
  • Page 44 :MATH<x>:OPERation? <x> = 1 to 2 <x> of MATH<x> = 1 or 2 Example :MATH1:HARMONICS:VOLTAGE 220 <NRf> = 1 to 6 (1 to 4 on the :MATH1:HARMONICS:VOLTAGE? -> DL7440) :MATH1:HARMONICS: Example :MATH1:OPERATION HARMONICS,2 VOLTAGE 220.000000E+00 :MATH1:OPERATION? -> :MATH1:OPERATION HARMONICS,2 :MATH<x>:TRENd? Description •...
  • Page 45 12 Communication Commands MEASure Group The commands in this group deal with executing automated measurement and statistical processing on power analysis parameters. :MEASure CHANnel <x> COUNt SDEViation MAXimum MEAN MINimum STAT e <Space> INPeak <NRf> IPPeak IPTopeak VALue IRMN IRMS LAMBda UA C UNPeak...
  • Page 46 Queries the statistical value of the power Syntax :MEASure:CHANnel<x>:{<Parameter>}: analysis parameter. VALue? {<NRf>} Syntax :MEASure:CHANnel<x>:{<Parameter>}: <x> = 1 to 6 (1 to 4 on the DL7440) {COUNt|SDEViation|MAXimum|MEAN|MINimum}? <Parameter> = {AH|AHN|AHP|I2T|IAC| <x> = 1 to 6 (1 to 4 on the DL7440) IDC|IMN|INPeak|IPPeak|IPTopeak|IRMN| <Parameter> = {AH|AHN|AHP|I2T|IAC| IRMS|LAMBda|P|Q|S|UAC|UDC|UMN|...
  • Page 47 12 Communication Commands PANalyze Group The commands in this group deal with settings of the power analysis function. :PANalyz e MATH <x> MODE <Space> <NRf> <x> PROBe <Space> C100 MODE <Space> <NRf> PROBe <Space> <NRf> <Space> JUMP DESKew MATH MEASure IM 701450-61E...
  • Page 48 PWR<x>. Syntax :PANalyze? Syntax :PANalyze:PWR<x>:U? Example :PANALYZE? -> :PANALYZE:PWR1: <x> = 1 to 3 (1 or 2 on the DL7440) MODE 1;U:PROBE 10;:PANALYZE:PWR1:I: Example :PANALYZE:PWR1:U? -> PROBE C10;:PANALYZE:PWR2:MODE 1;U: :PANALYZE:PWR1:U:PROBE 10 PROBE 10;:PANALYZE:PWR2:I: :PANalyze:PWR<x>:U:PROBe PROBE C10;:PANALYZE:PWR3:MODE 1;U:...

  • Page 49: Messages And Corrective Actions

    This section contains only the status and error messages that have been added for the Power Analysis Function (/G4 Option). For a description of the standard messages see section 16.2 in the DL7440/DL7480 User’s Manual IM701450-01E or appendix 2 in the DL7440/DL7480 Communication Interface User’s Manual IM701450-17E (CD-ROM).

  • Page 50: Specifications

    14 Specifications Item Specification Correction of the difference Corrects (deskew) the difference in the transfer time of voltage and current signals automatically or in the transfer time manually (Deskew) The correction range is ±100 ns (0.01 ns resolution). Automated measurement of As with the standard measurement parameters (waveform parameters), performs automated power analysis parameters measurement of power analysis parameters (see page 4).

  • Page 51: Appendix 1 Setup Parameters That Are Changed During The Execution Of Auto Deskew

    Appendix 1 Setup Parameters That Are Changed during the Execution of Auto Deskew The settings of the following parameters are changed when auto deskew is executed. Panel Key and Knob Soft Key Setting CH1 to 6 (CH5 and CH6 can be used only on the DL7480): Channel Channel with voltage probe connected (CH1, CH3, or CH5) Display Position...

  • Page 52: Appendix 2 Record Length And T/Div Settings That Allow Waveform Computation Of Harmonics

    Appendix 2 Record Length and T/div Settings That Allow Waveform Computation of Harmonics Number of Waveform Data Points According to the Record Length and Time Axis (T/div) To perform waveform computation on harmonics, 16 cycles of the fundamental waveform is required.

  • Page 53: Index

    Index display example (trend) ............27 Symbols Display Mode ............... 21 dual areas, automated measurement of ....... 14, 16 !s!l ................16, 25, 28 25 W ..................42 40th order ................24 8192 points ................24 EN61000-3-2 ................5 error messages ..............48 extension ................
  • Page 54 Index PS ..................20 PWR ..................47 PWR1 Analyze ............... 7 limit ................22, 42 limit, conversion of ............... 25 LIN ..................21 linear ..................21 LOG ..................21 Q ................... 16, 28 logarithmic ................21 q ..................16, 28 q+ ..................
  • Page 55 Index vertical axis ................41 voltage input channel ............47 voltage probe ................. 6 voltage probe, attenuation of ..........9 waveform computation ..........5, 23, 41 waveform data points, number of ......... 24 waveform parameter search ..........5 waveform parameters ........... 38, 43 waveform to be computed ............

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