mse10021 - sequencer

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User Manual for the ISA Sequencer Module

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  • DATE : 09/18/2008 DOC. MSE10021 REV. 5.1.3

    SEQUENCER

    User Manual

    REV. 5.1.3

  • DOC. MSI10021 REV. 5.1.3 Page 2/29

    REVISION DESCRIPTION OF CHANGES VISA

    N PAG. DATE

    1 All 09/18/2008 Version 5.1.3 Released Rossoni

  • DOC. MSI10021 REV. 5.1.3 Page 3/29

    1 Preface .......................................................................................................................................... 4

    2 Program Start ................................................................................................................................ 5

    2.1 Connection to the instrument ............................................................................................... 5

    2.2 File menu.............................................................................................................................. 7

    2.2.1 New .................................................................................................................................. 7

    2.2.2 Open ................................................................................................................................. 7

    2.2.3 Save .................................................................................................................................. 8

    2.2.4 Save into TDMS............................................................................................................... 9

    2.2.5 Notes to the test .............................................................................................................. 10

    2.2.6 Print ................................................................................................................................ 11

    2.2.7 Exit (ESC) ...................................................................................................................... 12

    2.3 Header menu ...................................................................................................................... 13

    2.4 Window menu .................................................................................................................... 13

    2.4.1 Sequence editor .............................................................................................................. 13

    2.4.2 Contacts .......................................................................................................................... 13

    2.4.3 Waveform viewer ........................................................................................................... 13

    2.4.4 Tile vertical .................................................................................................................... 14

    2.5 Settings menu ..................................................................................................................... 14

    2.5.1 Digital Inputs Type ........................................................................................................ 14

    2.6 Language menu .................................................................................................................. 15

    2.7 Menu ?................................................................................................................................ 15

    2.7.1 About .......................................................................................................................... 15

    2.7.2 Instrument Information .................................................................................................. 15

    2.7.3 ISA Web Site ................................................................................................................. 15

    3 Sequences definition window ..................................................................................................... 16

    3.1 Toolbar ............................................................................................................................... 17

    3.2 Cycle frame ........................................................................................................................ 18

    3.3 Cycle frame of the Prefault cycle ....................................................................................... 19

    3.4 Cycle frame of a Generic cycle .......................................................................................... 20

    3.4.1 Header info of the Cycle ................................................................................................ 20

    3.4.2 Output values of the cycle .............................................................................................. 22

    3.4.3 Main contacts frame ....................................................................................................... 24

    3.4.4 Auxiliary contacts frame ................................................................................................ 27

    4 Waveform viewer window ......................................................................................................... 28

  • DOC. MSI10021 REV. 5.1.3 Page 4/29

    1 Preface

    The program SEQUENCER has been designed as an interactive test software for all I.S.A.

    Automatic relay test sets, to test any kind of relay: this tool is a sequence editor that allows the user

    to build and run a sequence defined by consecutive cycles or steps. It is useful to search trip and

    reset thresholds, trip and reset times, control trip contacts and auxiliary contacts, display the

    waveform created by the cycles definition.

    When uploaded to the instrument, all the cycles of the defined sequence will be executed step by

    step.

    Each cycle is defined by the output values of currents and voltages, the state of auxiliary contacts,

    by a condition for the timing start and a condition for the timing stop of the cycle itself.

    The user can define the condition of transition from one cycle to the next one: this may take place

    after a fixed timeout time, a trigger (trip or reset) condition of the main contacts of the connected

    instrument or by pressing a button by the user himself.

    In every cycle the user defines if the output condition is a Value Injection, a Ramp or if the

    instrument must hold values of the previous cycle.

    For each cycle of value injection type the user defines amplitude, phase, frequency values of

    currents and voltages.

    For each cycle of ramp type the user defines initial value and rate of change values for amplitude,

    phase and frequency of currents and voltages.

    The waveform viewer displays graphically the time signals of voltages, currents, auxiliary contacts

    and main contacts and is useful to study the reaction of the protection relay.

    With this tool you can save and reload created sequences, so that you can repeat you test

    indefinitely; finally you can print them with professional reports that allow to export in Acrobat

    Reader Format (*.PDF), Microsoft Word Format (*.DOC) and Microsoft Excel Format (*.XLS).

    The program is completely integrated with the database of TDMS.

    IMPORTANT NOTICE:

    The menu items are NOT active if the instrument is not connected. If the user wants to

    operate in not-connected mode, wait for about 15 seconds and the program will ask whether

    to try to re-connect to the instrument and then press No on the message box that follows.

    Only at this point the main window will open and the menu items will be enabled.

  • DOC. MSI10021 REV. 5.1.3 Page 5/29

    2 Program Start

    2.1 Connection to the instrument

    When the program starts, it opens a window to set the connection parameters to the instrument.

    Connect the instrument to the PC, select the connection mode (COM port or USB) and press OK.

    If the program is not able to perform the connection with the given settings, it will display the

    following window:

    By pressing on Yes the program will try again the connection to the instrument. By pressing

    No, the main window of the program will open and it will work in not-connected mode, as shown

    in the status bar at the bottom of the main window:

  • DOC. MSI10021 REV. 5.1.3 Page 6/29

    IMPORTANT NOTICE:

    1) The menu items of the program are NOT enabled until the instrument is connected. If the user wants to operate in not-connected mode, he has to wait for about 15 seconds and the

    program will ask whether to try to re-connect to the instrument and then press No on the

    message box that follows. Only at this point the main window will open and the menu items

    will be enabled.

    2) Depending on the type of the connected instrument, the program will allow to set the amplitudes for a number of voltages and currents that correspond to those present on the

    instrument. Similarly, the number of main contacts and auxiliary contacts will depend on the

    connected instruments capabilities.

    If the program runs in not-connected mode, by default it will be possible to use the settings

    for a DRTS.6: four voltages, six currents, ten main trip contacts and four auxiliary contacts.

    It is possible to create and save a sequence in not-connected mode too. This sequence will

    then be executed when the instrument is actually connected. Voltages (for instance V4) and

    currents (for instance I4, , I6) that are not present on the instrument will be ignored.

    The window that allows the user to define the instrument type and the connection

    parameters does not show up if in the Set Comm program (that can be run from TDMS

    under Additional Programs Utilities), the Choose model at startup option is not selected.

    When the program opens the following window is automatically displayed:

  • DOC. MSI10021 REV. 5.1.3 Page 7/29

    2.2 File menu

    2.2.1 New

    By selecting this menu item, the program will display a new sequence, starting from the prefault

    cycle. In case modifications have already been made to a sequence and the modifications have not

    yet been saved, the program will ask to save the sequence before creating a new one.

    2.2.2 Open

    By selecting this menu item, the standard Microsoft Windows file selection window is opened:

    By browsing the directories, it will be possible to open a file previously saved with Sequencer or by

    the Manual program of TDMS (only if the file contains a sequence). Before opening a new

    sequence, if there are modifications to the current sequence that have yet not been saved, the

    program will first prompt the user with the option to save the modifications.

  • DOC. MSI10021 REV. 5.1.3 Page 8/29

    2.2.3 Save

    By selecting this menu item, the standard Microsoft Windows file selection window is opened:

    By pressing the Save button, the program saves the sequence and the results that may have been

    obtained in a Sequencer format file, with the name chosen by the user and in the selected directory.

  • DOC. MSI10021 REV. 5.1.3 Page 9/29

    2.2.4 Save into TDMS

    This menu item allows the user to export the opened sequence into the TDMS database. By

    selecting this menu item, the following window opens, and allows the user to select the node of the

    network tree created by TDMS into which the sequence must be saved.

    To export the opened sequence, select the relay node in which the sequence must be saved, choose a

    descriptive name for the file and press the Save button. By pressing the Cancel button, the

    sequence will not be saved into TDMS.

  • DOC. MSI10021 REV. 5.1.3 Page 10/29

    2.2.5 Notes to the test

    By selecting this menu item, the following window is opened:

    In the text box it is possible to write notes that can be included in the printed report. By pressing the

    button Ok the notes will be saved along with the sequence. By pressing the Cancel button, all

    changes to the notes will be discarded.

    HINT: in the text field it is possible to insert text and images coming from other programs such as

    Acrobat Reader or Microsoft Word.

  • DOC. MSI10021 REV. 5.1.3 Page 11/29

    2.2.6 Print

    By selecting this menu item, the following window opens:

    By checking the option Include Notes Page the report will include a page containing the notes

    added by means of the menu item Notes to the test (see paragraph 2.2.5).

    In the Column Selection frame the user can select one by one up to nine parameters, which will

    be included into the report.

    It is also possible to insert a customized logo at the top of the report. By pressing the button

    Change Report Logo the following window opens:

    The button Browse allows to select the image file (*.BMP, *.JPG, *.TIFF or *.GIF) with the

    customers logo by browsing through the computer or network directories. By pressing Ok the

    window is closed and the logo is stored into the print preview. By pressing the Cancel button, the

    window is closed but modifications are not saved.

    Press the button Print preview to open a preview of the actual sequence printout.

  • DOC. MSI10021 REV. 5.1.3 Page 12/29

    The toolbar at the top of this window is the following:

    The first four buttons allow the user to browse thorough the pages of the report

    (first, previous, next and last page).

    The button allows the user to print the report, after selecting the printer.

    The button allows the user to export the report in the Adobe Acrobat (*.pdf), Microsoft Excel

    (*.xls), Microsoft Word (*.doc) or Rich Text Document (*.rtf) formats, by selecting the type

    from the drop down menu, as shown in the following picture:

    The button allows the user to zoom in or out the print preview.

    2.2.7 Exit (ESC)

    Select this menu item to close the program. If a sequence is opened and modifications have been

    performed, the program will first prompt the user to save the modification before closing the

    program.

  • DOC. MSI10021 REV. 5.1.3 Page 13/29

    2.3 Header menu

    By selecting this menu item, the following window is opened. It contains info that allows for the

    traceability of the test results. They are saved and printed along the results and include: the name of

    the Substation (Plant name), name of the Line (Feeder), info that identify the relay, such as

    Manufacturer, Model and Serial number. Furthermore the Operator and the ISA Instrument Serial

    Number can be added. Other fields are optional.

    By pressing the Ok button, the modifications will be saved along with the opened sequence and

    shown again at the next program startup.

    2.4 Window menu

    2.4.1 Sequence editor

    By selecting this menu item, it is possible to hide or view the main window for the definition of the

    sequence cycles.

    2.4.2 Contacts

    This menu item allows the user to view or hide the secondary window for the selection of some

    parameters related to the main and auxiliary contacts (see paragraph 3.4.3).

    2.4.3 Waveform viewer

    By selecting this menu item, it is possible to view or hide the window that displays the waveforms

    of the selected sequence.

  • DOC. MSI10021 REV. 5.1.3 Page 14/29

    2.4.4 Tile vertical

    This menu item allows the user to tile vertically the main window for the definition of the sequence

    and the waveform viewer window.

    2.5 Settings menu

    2.5.1 Digital Inputs Type

    By selecting this menu item, the following window opens, and it is possible to define the settings

    for the input contacts of the connected instrument. This option applies only for instruments type

    DRTS, DRTS.3, DRTS.6 and ART100:

    There are three possible settings for the type of the contact: Dry contact, DC voltage or AC voltage.

    In case of dry contacts it is not possible to select the voltage threshold. On the contrary, when the

    contact is wet, it is also possible to select the threshold: all inputs lower than the 80% of the

    threshold are zeroed. This prevents sensing a false contact status in case there is a protective resistor

    in parallel to the contact driving the breaker coil, in which case the Open contact does not

    correspond to zero volts. Available thresholds are 5V (for the digital inputs); 24 V; 48 V; over 100

    V. This selection should correspond to the wetting voltage of the contacts.

    If dry input is selected and a voltage is applied the instrument does not suffer, provided that the

    input is no more than 220 V. If a voltage is selected and the input is not polarized, the trip is not

    sensed.

    If a wrong voltage threshold is selected:

    1) Thresholds higher than the voltage: the trip is not sensed.

    2) Thresholds lower than the voltage; the contact could be found closed when it is open.

    With AC voltage selection the debounce is automatically set to 2000 us to avoid the zero crossing

    of the input.

  • DOC. MSI10021 REV. 5.1.3 Page 15/29

    The debounce is the time during which the instrument waits for the input to become stable: this

    avoids stopping the test because of noise, and also to ignore contact bounces. When a transition is

    sensed the debounce counter starts: any opposite transition before the debounce expires resets the

    counter. Only if the input does not change for the programmed duration the input is accepted, and

    the timer stopped. Default value 100us. With electronic inputs, the value can be programmed to 0s.

    With heavy contacts the debounce is better programmed to 2000us (maximum value). The time

    measurement is not affected by this selection.

    2.6 Language menu

    This menu allows the user to change the language of the program. The selection is saved and used

    also the next time the program starts.

    2.7 Menu ?

    2.7.1 About

    By selecting this menu item a window is displayed to show the software release version and the info

    on how to contact us with an internet link to our website (see paragraph 2.7.3).

    2.7.2 Instrument Information

    By selecting this menu item, when the instrument is connected it is possible to display its hardware

    settings (firmware revision, booster option, IEC61850 option, and so on).

    2.7.3 ISA Web Site

    By selecting this menu item, the default web browser will be opened to the page www.isatest.com.

    From this website it is possible to download the firmware upgrades for the instrument or the latest

    version of our software.

    2.7.4 Help On Line

    By selecting this menu item or pressing F1 key, this manual will be opened automatically.

    http://www.isatest.com/
  • DOC. MSI10021 REV. 5.1.3 Page 16/29

    3 Sequences definition window

    This is the main window of the program, and it allows defining all cycles of the sequence, each one

    with its voltage and current magnitudes and with the proper settings of main and auxiliary contacts.

    A sequence is made up of an initial cycle of type Prefault that cannot be deleted, and by a series

    of cycles that follow.

    The info that defines a cycle parameters are contained in a frame, as shown in the following picture:

    The cycle of the previous picture is active, as displayed by the red horizontal bar at the top of the

    frame.

    In the following picture two cycles are displayed; cycle n.1 is active and can be changed, whereas

    cycle n.2 is not active and therefore the parameters cannot be changed.

    To activate a cycle it is sufficient to click on the grey bar at the top of the cycle or on any part of the

    frame that holds all the cycle values.

  • DOC. MSI10021 REV. 5.1.3 Page 17/29

    After having defined a sequence it is possible to execute it by pressing the button Start sequence.

    PLEASE NOTE: all pictures that display the frames holding the cycle values of this manual are

    referred to the ISA instrument DRTS.6, which is the default instrument used in case the program

    works in not-connected mode. That is why there are four voltages, six currents, ten main contacts

    and four auxiliary contacts.

    3.1 Toolbar

    As the main program window is opened, the toolbar displayed is like the following:

    After the first cycle has been added, the toolbar will become the following:

    The meaning of the buttons is the following:

    New Cycle: by pressing this button a new cycle is added after the one currently selected. Those

    cycles on the right of the selected cycle will be right-shifted of one position to allow the insertion of

    the new cycle.

    Delete Cycle: by pressing this button, the cycle currently selected is deleted. Before deleting the

    program warns the operator asking for confirmation. The first Prefault cycle cannot be deleted.

    Copy Cycle: by pressing this button, the cycle currently selected is saved to allow the pasting of a

    copy into any position of the sequence. Copying a cycle means to copy ALL data relative to the

    selected cycle (header, voltage/current values, main contacts settings with optional messages for the

    operator, auxiliary contacts settings). The initial Prefault cycle cannot be copied.

    Cut Cycle: similar to the Copy cycle option. The difference is that the selected cycle for copy is

    deleted from the sequence, without asking confirmation to the user. To undo the Cut operation, it is

    possible to select the cycle before the one that has been deleted and press the button Paste cycle.

    Paste Cycle: the cycle that has been selected for Copy or for Cut is inserted immediately after the

    selected cycle. Cycles that may follow the selected one, are right-shifted of one position to allow the

    insertion of the Copied or Cut cycle.

    Waveform Viewer: by pressing this button the Waveform viewer window is displayed (see chapter

    4)

    Start Sequence: this button allows to start the currently opened sequence, by sending it to the

    instrument and executing it. The instrument must be connected to run the sequence.

    Stop Sequence: by pressing this button, the software sends to the instrument a command of

    immediate stop of the currently running sequence. The prefault values are then applied. The

    instrument must be connected to stop a sequence.

    Reset Sequence: by pressing this button, the software sends to the instrument a command of

    immediate stop of the currently running sequence. Furthermore all voltages and currents are

    immediately reset to zero.

  • DOC. MSI10021 REV. 5.1.3 Page 18/29

    3.2 Cycle frame

    A sequence is made up of a series of cycles that can be freely added, copied, cut or deleted. The

    only cycle that it is not possible to delete is the first cycle, which is the Prefault cycle. This frame

    can be logically divided into four areas:

    1) Header of the cycle

    2) Table with the voltage and current values

    3) Definition of the main contacts status: the contacts can be set to normally open or normally closed and the trip time can be measured on the trip or the reset of the contact; this part is

    not present on the prefault cycle

    4) Definition of the auxiliary contacts: the auxiliary contacts present on the instrument can be controlled to be open or close

    There are two types of cycle frames:

    1) Cycle frame of the Prefault cycle

    2) Cycle frame of a Generic cycle

  • DOC. MSI10021 REV. 5.1.3 Page 19/29

    3.3 Cycle frame of the Prefault cycle

    The frame for the Prefault cycle or zero cycle is shown in the following picture:

    It is the first cycle of the sequence and cannot be deleted (in order to avoid generating a prefault, it

    is possible to set Tprefault to zero). This cycle is needed to:

    1) set the value of the protection DC supply voltage

    2) define the amplitude, phase and frequency of the voltages and currents present on the instrument

    3) set the duration in seconds of the prefault

    4) define whether the auxiliary contacts are opened or closed at the start of the first cycle

    5) set a maximum safety value for all voltage and current outputs

  • DOC. MSI10021 REV. 5.1.3 Page 20/29

    3.4 Cycle frame of a Generic cycle

    The cycle frame of a Generic cycle added to the sequence is shown in the following picture:

    It is possible to insert a new cycle in any position of the sequence, following the prefault cycle.

    When the New cycle button is pressed, the cycle will be added immediately after the selected one

    (that is the one with the red horizontal bar at the top of the frame). Cycles that may be on the right

    of the selected one will be right-shifted of one position to allow the insertion of the new cycle.

    3.4.1 Header info of the Cycle

    In the header info of a cycle it is possible to add the following details:

    1) Cycle name: it is a text field that allows to describe the cycle

    2) Cycle type: the cycle can be of type Value Injection or Ramp; in the former case the injected values are constant in amplitude, phase and frequency for the duration of the whole

    cycle; in the latter case it is necessary to define whether to set the gradients (ROC: rate of

    change) on the amplitude, on the frequency or on the phase. By selecting this cycle type, the

    following frame becomes visible

  • DOC. MSI10021 REV. 5.1.3 Page 21/29

    The first option (ROC I/V) will allow to define the gradients on the amplitudes of the

    voltages and currents; the second option (ROC Freq in Hz/s) sets the gradient on the

    frequency parameter; the third and last option (ROC Phase) allows to set the gradient on the

    phases of the voltages and currents. By modifying these options it can be noted that in the

    voltages and currents tables some columns will be displayed or hidden to set the value of the

    gradients. In case of Frequency ROC the value of the gradient can be set in the box that is

    displayed immediately on the right of the option

    3) Freq (Hz): it represents the value of the frequency of all voltage and current outputs injected by the instrument. The items in the following drop-down menu

    allow to define whether the frequency is applied to All phases, to V1 only, to all voltages, to

    all voltages and I1, to all voltages and currents excluding V4, only to V1 and V2. If the

    selected option is different from the default one, it will be possible to set the frequency that

    has to be applied to the selected option: outputs not included in the list will be generated

    with the frequency set in the prefault cycle

    4) Hold Previous Cycle Values: this option is enabled only if the preceding cycle is of type Ramp or if the preceding cycle has this option selected; if this option is checked then the

    instrument will hold the values of the previous cycle and therefore, as an example, a ramp

    will start from the values reached by the previous ramp, as shown in the following picture

    (in this example, both cycles 2 and 3 have the option Hold Previous Cycle Values

    checked):

    5) Initial Fault Angle: this parameter allows the user to check the instantaneous value of the currents and the voltages at the starting of the fault. Since the outputs are only sinusoidal,

    the parameter is expressed in degrees. By selecting 0 degrees, the fault will start when the

    parameter is zero: by selecting 90 degrees, the fault will start when the parameter will reach

    the highest value (corresponding to 90deg). Since voltages and currents do not have the

    same phase and since when the test starts all parameters are applied at the same time, it is

    necessary to define which parameter controls the Initial Fault Angle. This selection is

    performed by choosing the reference output and the relative initial fault angle. The fault will

    be executed when the reference output matches the angle condition; all other outputs will

  • DOC. MSI10021 REV. 5.1.3 Page 22/29

    maintain an initial phase relative to the phase difference with the reference output (see the

    Phase column in the grid for the definition of output values). In this way, at the start of the

    fault, the continuity of the prefault values can be maintained

    6) Absolute Angles: normally the prefault values do not change their angle unless they are programmed to have different values: this guarantees the continuity of the parameters

    applied to the relay between the prefault and the fault conditions. When the Initial Fault

    Angle and the reference output are set as explained in the preceding point, the instrument

    starts the test when its internal angular reference matches the selected angle. This method

    though, does not guarantee that the fault angle of two different synchronized units is the

    same. If on the contrary the option Absolute Angles is selected, all angles will be modified

    at the start of the test, independently from the value of the voltage or current of the prefault.

    This allows to synchronize the outputs of two units on the same logical input; normally in

    these tests the prefault values are set to zero

    7) DC Supply (V): set this field to the value of the DC voltage that the instrument has to inject from the dedicated output to polarize the protection relay

    3.4.2 Output values of the cycle

    In the grids below the header info, it is possible to set the amplitude and phase values, or the

    gradient of the amplitude or phase of each output. For the Ramp cycles, the actual values reached in

    the cycle will also be displayed. The number of outputs depends on the connected instrument. In the

    following examples, the connection to a DRTS.6 is simulated.

    In case of the option type Value Injection or type Ramp with further option frequency ramp

    (ROC Freq) the grid is structured as in the following picture:

    In this case it is possible to set the r.m.s. value of the voltage or of the current and the phase value

    relative to the various outputs.

    In case of option type Ramp with further option current or voltage ramp (ROC I/V) the grid is

    structured as in the following picture:

    In this grid it is possible to modify voltage and current starting values (columns [Start V] and [Start

    A]), the value of the gradient expressed in a second (columns [V/s] and [A/s]) and the value of the

    relative phase in degrees between voltages and currents (columns [Ph ()]) that will be maintained

  • DOC. MSI10021 REV. 5.1.3 Page 23/29

    constant for the duration of the entire cycle. Columns [Stop V] and [Stop A] cannot be modified and

    will be set by the program with the values reached by the outputs during the cycle execution.

    In case the cycle has the option Hold Previous Cycle Values checked, the columns [Start V],

    [Start A], and [Ph ()] for currents and voltages will not be modifiable (symbol [-]), as shown in the

    following picture, since the instrument will hold the values reached by the previous cycle:

    In case of option Ramp with further option Phase ramp (ROC phase) the grid is structured as in

    the following picture:

    It is possible to modify the voltage and current values ([V] e [A]) that will be maintained constant

    during the entire cycle duration, the starting value of the phases (columns [Start ]) and the value of

    the gradient expressed degrees per second (columns [ / s ]). The columns [Stop ] and [Stop ] are

    not modifiable and will be set by the program with the values reached by the outputs during the

    cycle execution.

    In case the cycle has the option Hold Previous Cycle Values checked, the columns [V], [A], and

    the columns [Start ] for the currents and the voltages will not be modifiable (symbol [-]), as

    displayed in the following picture:

  • DOC. MSI10021 REV. 5.1.3 Page 24/29

    3.4.3 Main contacts frame

    This frame allows the user to set the conditions for the transition from one cycle to the next to

    happen. In the Tmax field the user has to set the maximum timeout in seconds after which the

    sequence executes the next cycle even if there has been no contact trip. The enabled contact is C1

    by default: therefore as a predefined setting, the transition to the next cycle happens when the

    contact C1 closes. To enable other contacts, it is enough to click on the green icon at the side of the

    label C2, , C10, as displayed in the following picture:

    NOTE: the number of contacts displayed depends on the connected instrument. If the user is

    working in not-connected mode, the default setting is that for the DRTS.6 instrument, that has 10

    contacts.

    By clicking on the contact it is possible to modify the status:

    (NORMALLY OPEN) means that in this cycle the contact will be considered normally open

    (NORMALLY CLOSE) means that in this cycle the contact will be considered normally

    closed

    (NOT AVAILABLE) means that in this cycle the transitions of this contact will not be

    sensed

    For the transition conditions, please remember to set the parameters relative to the contacts as

    explained in the paragraph 2.5.

    By default the instrument measures the trip of the contact. By pressing the button Next cycle

    transition the following window is opened:

  • DOC. MSI10021 REV. 5.1.3 Page 25/29

    Time Tmax is identical to the one set in the frame of the cycle in the main window. In the Tnom

    field it is possible to set the nominal trip time of the relay connected to the instrument. It is

    important to set this parameter for the cycles of type Ramp. To refine the results on tests of this

    type, Tnom is used. As the relay trips, the measured value reached by the ramp is corrected

    according to the following formula:

    (Result) = (Measure) (Value of the gradient)*(Tnom)

    In the drop-down menu Start Timer it is possible to select the moment in which the measure of

    the trip has to start, setting therefore if the timer for the current cycle starts at the start of the cycle

    itself or at the trip or reset of a main contact.

    For each contact of the connected instrument it is possible to set:

    1) LABEL column: optional free description

    2) STATUS column: sets the default condition of the contact during the cycle (Normally open, not applicable, or normally closed). By clicking on the images of the contact status, it is

    possible to cycle through all possible statuses of the contact; the modifications made on the

    status will be immediately copied into the cycle frame of the main window

    3) STOP TIMER column: sets whether the instrument has to consider the transition time of the contact on the first edge (trip) or on the following edge (reset)

    The following picture shows the meaning of trip and reset.

  • DOC. MSI10021 REV. 5.1.3 Page 26/29

    By clicking on the label C1-4: dry and C5:8: dry the window for the Setting of the Hardware

    status of the contacts is opened (see paragraph 2.5).

    The button Define Message allows adding an optional message for the user on the selected cycle.

    It has been designed to stop the sequence during the execution before executing the selected cycle.

    By pressing this button the following window is opened:

    The fields Message and Note can contain images or parts of documents (for example Acrobat

    Reader, and so on ) that may be useful as help and operative instruction for the operator.

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    If the option Enable Message is checked, the execution of the sequence will be paused before

    executing the selected cycle and a window with the message will appear. To continue the sequence,

    the operator will have to acknowledge the message by pressing on the Ok button.

    3.4.4 Auxiliary contacts frame

    This frame allows the user to activate the auxiliary contacts of the connected instrument during the

    selected cycle. By clicking on the icon placed on the side of the label A1, , A4, the logical

    condition of the contact will be modified (open or close):

    auxiliary contact is open

    auxiliary contact is close

    By pressing on the button Auxiliary Contacts the following window will be opened:

    This window allows the programming of the timing of the auxiliary contacts with respect to the

    other parameters (auxiliary contacts are A1, A2 for UTB, UTS and ART/3; are A1, A2, A3 and A4

    for DRTS, DRTS.3, DRTS.6 and ART/100) expressed in seconds. For each auxiliary contact it is

    possible to set an optional label, the status of the contact (the modifications will be immediately

    copied in the cycle frame of the main window) and the delay time of the closing or opening of the

    contact in seconds. The minimum time selectable is actually the maximum resolution, which is

    10msec.

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    4 Waveform viewer window

    By pressing the button Show waveform viewer in the toolbar of the main window or choosing the

    menu item Waveform Viewer from the Window menu, a new window is opened. This window

    displays the waveform of the voltages, currents, the trip time of the main contacts and the timing of

    the auxiliary contacts, as shown in the following picture:

    In this window it is possible to define these main areas:

    1) Toolbar, that will be explained later in this chapter

    2) Header of the cycles: each cycle in the sequence is represented by a blue horizontal bar; the duration of the cycle before test execution is equal to the Tmax value in seconds; at the end

    of the sequence execution is equal to the maximum time between the trips or resets of the

    contacts enabled for the cycle. A blue vertical line separates one cycle from the next

    3) Graphic of all current waveforms: it shows the time waveforms for the current outputs; the envelopes are superimposed and given a different colour; the y-axis scale is set to the

    maximum value in Ampere between all of the visible waveforms; the values are intended to

    be r.m.s.

    4) Graphic of all voltage waveforms: it shows the time waveforms for the voltage outputs; the envelopes are superimposed and given a different colour; the y-axis scale is set to the

    maximum value in Volt between all of the visible waveforms; the values are intended to be

    r.m.s.

    5) Graphic of the main contacts (that are displayed only when the sequence has been executed) and of the auxiliary contacts. The open contact is represented with a thin line,

    the closed contact with a wider line

    1 2

    3

    4

    5

    6 7

    8

    9

    10

  • DOC. MSI10021 REV. 5.1.3 Page 29/29

    6) Cursor T1: it is a vertical red line that can be moved with the left button of the mouse, by clicking it or dragging the mouse holding the button down. The label below the graph shows

    the time corresponding to the cursor position with an approximation of one millisecond

    7) Cursor T2: it is a vertical blue line that can be moved with the right button of the mouse, by clicking it or dragging the mouse holding the button down. The label below the graph shows

    the time corresponding to the cursor position with an approximation of one millisecond

    8) Difference in seconds between T2 and T1

    9) Current options panel: by clicking on the side of the labels I1, , I6 it is possible to display or hide the envelopes of the current outputs. By clicking on the label with the colour

    a window is opened to allow the user to select the colour for the selected waveform. In the

    label on the side of the colour the program displays the r.m.s. value of the corresponding

    output

    10) Voltage options panel: by clicking on the side of the labels V1, , V4 it is possible to display or hide the envelopes of the voltage outputs. By clicking on the label with the colour

    a window is opened to allow the user to select the colour for the selected waveform. In the

    label on the side of the colour the program displays the r.m.s. value of the corresponding

    output

    The toolbar at the top of this window is the following:

    1) Zoom button: by pressing this button it is possible to enable the zoom mode; once having accessed this mode, by clicking on the mouse on the currents, on the voltages or on the contacts,

    dragging the mouse and then releasing the mouse button, the program will zoom in the selected

    area

    2) Magnify Display: by pressing this button the program will zoom in the area between the cursors T1 and T2

    3) Display all: by pressing this button the program will restore the graphics to the initial values, by setting T1 to zero seconds and T2 to the maximum value that is the sum of all the maximum

    time duration of the cycles

    4) Show/Hide Currents: by pressing this button it is possible to hide or display the graphic of the currents

    5) Show/Hide Voltages: by pressing this button it is possible to hide or display the graphic of the voltages

    PrefaceProgram StartConnection to the instrumentFile menuNewOpenSaveSave into TDMSNotes to the testPrintExit (ESC)Header menuWindow menuSequence editorContactsWaveform viewerTile verticalSettings menuDigital Inputs TypeLanguage menuMenu ?AboutInstrument InformationISA Web SiteHelp On LineSequences definition windowToolbarCycle frameCycle frame of the Prefault cycleCycle frame of a Generic cycleHeader info of the CycleOutput values of the cycleMain contacts frameAuxiliary contacts frameWaveform viewer window