Reference value, Hysteresis parameter | Schneider Electric SR2MAN01

LD Language Elements

Reference value:

Symbol of the reference value:

R

The reference value is a constant to which a measured value may be compared. It must be between 0 and 9.9.

Hysteresis parameter:

Symbol of the hysteresis parameter:

H

The hysteresis parameter is a constant used to define an interval in which the 2x variable should be found for the comparator to be active. Its value must be between 0 and 9.9.

Parameter locking:

Symbol of the Parameter lock parameter:

Verrouillé

Non verrouillé

Locking prevents the modification of locked parameters from the front panel of the smart relay via the PARAMETERS menu.

SR2MAN01 11/2007

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Image 118

Schneider Electric SR2MAN01 user manual Reference value, Hysteresis parameter, Parameter locking

Contents

Zelio Logic Smart Relay 11/2007 Table of Contents Clear Program Menu Configuration MenuDefault Menu Transfer Menu Debugging an Application DiagnosticsImplementing a Basic Application Sample Application Safety Information Important Information Safety Information About the Book At a Glance Chapter Name Initial Power up and Discovering Initial Power up and DiscoveringPresentation Subject of this Chapter Whats in this Chapter? Topic Safety Preliminary Advice Risk of Electric SHOCK, Explosion or Electric Arcing Involuntary Operation of Equipment U 2 5 S E P 1 6 4 Presentation of the Smart Relay Front PanelIntroduction Description Smart Relay Front Panel An Active input or output is displayed in reverse video Description of the LCDPrompt Element Regulated Characteristics and ConnectionsRectified and filtered Shift Key Control Keys on the Front Panel of the Smart RelayN / S T O P Menu/OK Key Are marked above the keys Round for a link only in programming modeZx Keys Navigation keys are used to move left or right, down or up Contextual Using the contextual menu functionsMenus Contextual menu appears Illustration Ins + Param Del Step Action ExamplesIntroduction Language Selection View Or then E a R P R O G A N S F E R R S I O N N G U a G E D E O P Modification of Date and Hour Then Times in LD modeView A N G E D / H U L 2 0 0 2 7 3 0 s Secs / WK View 3 4 B C D E Subject of this Section Whats in this Part? Functions Accessible from the Front PanelChapter Chapter Name Line flashes to indicate where you are positioned Overview of the Functions Accessible from the Front PanelTo return to the previous menu, press left navigation key Differences Between LD FBD Modes Certain menus are specific to either LD or FBD modeConfiguring Extensions Input/Output Screen 3 4 5 Programming type LD or FBD Mode Stop or RUNInputs-Outputs Screen N 2 2 S E P 1 5 5 Access to Main Menu L u e c o u n t e r Switching Between ScreensText and Display screen T e 1 1 / 2 0 0 Press the Shift key white key to display the contextual menu Result Param is displayed at the bottom of the screen Programming Menu Subject of this Chapter Chapter? Smart relay allows you to enter 120 line Ladder diagrams Rules for Entering Ladder DiagramsFollowing manner M1----I4-I5-I6-Q1 Rules Incorrect Correct Description Entering an Element Method for Entering a Contact or CoilIns Del Steps 7 to 9 are only necessary when entering a coil Modifying an element Initialization Deleting an Element Entering a Link Description Entering a Link Deleting a Link Replacing a Link with a Contact Description Accessibility of parameters Entry of Function Block Parameters Modifying Parameters Existing Blocks Entering Parameters on Creation of the BlockIns. + Param Del To modify the parameters of an existing element, simply Deletion Deletion and Insertion of Diagram LinesInsertion Parameters Menu LD modeParameters menu FBD mode Parameter Modification RUN Mode Monitoring Menu To modify the parameters, proceed as follows Startup RUN/STOP MenuFollowing three choices for starting the program O P Off Smart Relays Without Screen Configuration Menu Password Menu Password to perform certain operations E a R 1 Entering PasswordPassword Removing E a R 2 3 0 M I N U T E S Filtering Commutation Response time Slow Filter MenuDescription Filter-Type Selection Fast Description Zx Keys in RUN Mode Zx Keys Menu Watchdog Cycle Menu Illustration C L E = 0 5 x 0 2 m S Actions Cycle Time Watchdog Configuration Clear Prog Menu Clear Program MenuDescription Clearing the Program L I O M E M O R Y Transfer MenuM O R Y Z E L I O Module → Backup Memory Transfer Backup Memory → Module Transfer RUN, remove the Eeprom cartridge SR2 MEM02 Incompatible Absence of backup memoryApplication With firmware on Use of SR2 MEM01 and SR2 MEM02 R D W a R E 0 1 Version MenuD U L E S R 3 B 2 6 1 B D R M W a R E 0 1 1 4 1 B D Language Menu A L I a N O Fault 0 0 Default MenuFault Menu Reset to Zero of the Fault Counter Illustration Fault Types Default Menu Change DATE/TIME Menu A N G E Example Clock ConfigurationSteps Description Change SUMMER/WINTER Menu Smart relays with a clock Configuration of the Time Change To configure automatic time change, proceed as follows LD Language Chapter Chapter Name LD Language Elements LD Language Elements Introduction Ladder DiagramsDiagram Panel of a smart relay Composition Discrete Inputs Normally open modeNormally closed mode Use as a Contact State of a ModificationContact Zx Keys Normally closed mode reverse state is active Normally open mode direct state is inactivePlace the mouse over the letter representing the contact They can be used as internal variables Auxiliary RelaysContact Latch mode Contactor modeImpulse relay mode Unlatch mode Normally open mode Modifying the Mode of a Coil or a Contact Following inputs I1, I2, I3, I4, I5 and IB Activated LatchingInitialization Window Discrete Discr Outputs Smart relay and any extensions SQ1 Window associated with the output Timers Command input Coil TT Command InputCoil RC Reset Input Reset input Type of timer Time unit Preset valueUnit Symbol Form Maximum value Parameter lock Number Parameter Description Command input timing diagramTimer type Time unit Following diagram shows the operation of the type C timer Following diagram shows the operation of the type a timerOff delay type C Active, control held down type a On pulse one shot type B Combination of a and CTiming after pulse type W Flasher unit, control held down synchronously type D Following diagram shows the operation of the type D timerFollowing diagram shows the operation of the type L timer Flasher unit, Press to start/stop, Synchronous type d Time on addition type T Following diagram shows the operation of the type T timerNormally closed mode inverse state is active Current values is are zeros Preset value t Illustration Timers configuration screen Coil CC Counting Pulse Input Coil RC Reset Initial Counter State InputCounters Coil DC Counting Direction input Every time key Z1 is pressed, the counter starts from Reset Initial Counter State inputCounting direction input Contact is conducting as long as Type of counting Counter reset input timing diagram Number Parameter Description Command inputCounter output Counter output timing diagram Initialization R Counting Current value is zero Mode toward the preset valueExamples Fast Counter Coil RK1 Reset initial counter state input Coil TK1 Enable function inputEnable function input 120 Cycle type Symbol of the Duration of pulse parameterDuration of pulse Symbol of the Parameter Lock parameter Verrouillé Current Counter Value Counter reset to its initial stateNumber Parameter Description Cycle type Single/Repetitive Up-Counting in Single Cycle Mode Down-Counting in Single Cycle Mode Up-counting in Repetitive Cycle Mode Down-Counting in Repetitive Cycle Mode TK1 RK1 Counter Comparators Analog Comparators X1 H ≤ x2≤ x1 + H Configuration from Front PanelXl Comparison Operator Values to compare Hysteresis parameter Reference valueParameter locking = 4 = R = 1 = I e N a L O G≤ ξ 2 ≤ x 1 + H N a L O G ≤ x = I d = I e Temperature is below 20 C Comparison operator no is chosen, that is ≤ Symbol of the normally closed contact, representing a clock Mode or its inverse state mode normally closed, see belowSymbol of the normally open contact, representing a clock Clocks Number Parameter D / W O N O F FRelay Operating ranges Day at Interval Start on Friday at End on Monday at 2 3 4 2 3 Only the block with the highest number is displayed TextsThese function blocks are used as coils Display from the Text screen to the inputs-outputs screen Display Activation Display Activation coil Display Deactivation coilDisplay deactivation LCD Screen Backlighting Used as a Coil Change to Summer / Winter Time AccessCheck the Activate Summer/Winter Time Change box Modifying the Mode of a Coil or a Contact Initialization Europe Europe Smart relay Modbus Inputs/OutputsWords sent by the master Use of the Coil Command input Message Configuration from the Front Panel Initialization Creating and Debugging an Application Implementing a Basic Application Works a two-way switch Presentation of Ladder DiagramsNormal electrical diagram Ladder diagram Operation Can be used in place of two position switches Module Wiring Below, an illustration of smart relay wiringMon Using the Reverse Function Input I wired on the smart relay Ladder diagram 1 Light off when idle Electrical diagram Connection to the smart relayPractical Example Off delay Operating Electrical diagram Notation Used by the Smart Relay Electrical symbol Ladder symbolEquivalencies Between Notations 156 Description Go to the Programming Screen Application Implementing a Two-way SwitchStep Action Screen Comment Entering Contacts First Line To enter the contacts in the first line, proceed as follows Step Action Screen Entering the Coil and Joining it to the Contacts Fois Entering Contacts Second Line To enter the contacts in the second line, proceed as follows Second 1 in the second line Joining the Second Line to the FirstTo join the second line to the first, proceed as follows Flashes To launch the program, proceed as follows Launching the ProgramProgramming is selected Debugging an Application Module in RUN Mode Viewing Status N L D Menus RUN mode Viewing Ladder Diagrams Dynamic Mode Ladder DiagramsChanging Ladder Diagrams Using Z Keys as Pushbuttons 3 4 5 N 2 2 S E P 1 5 5 Accessing Dynamic Mode Function Block ParametersPresentation Dynamic Mode Dynamic Mode MenusMenus Not. Here is a summary table Event of a power failure Smart Relay Reaction to a Power FailureOption defined in the parameters window With the clock function block 1 configured as follows Safety ModeExample of a non-locked coil Memory optional and vice-versa Backup and Transfer of Ladder Diagrams19Saving and Transferring Ladder Diagrams This allows Sample Application Specifications Button Specification AnalysisInputs Outputs Special function blocks Smart relay label Name Implementing the Solution Description Implementing Ladder Diagram O F F 1 2 0 Function Blocks With the threshold value 8.5 Function block Comment Analog function block A1Compares the measured CO 2 level Fan operating duration if the CO Diagnostics Chapter Name Diagnostics 187 Smart Relay Messages 188 Frequently Asked Questions 189 Smart Relay Messages Relay, their possible causes and how to remedy the problemMessage Cause Corrective action Frequently Asked Questions Questions are listed here Asked Questions FrequentlyAnswer Appendix contains the following chapters AppendicesThis section contains product-related appendices Appendix? Subject of this CompatibilityChapter Smart relay firmware version Version Smart relay firmware language Memory Cartridge to Smart RelayType of memory cartridge Version of firmware compatible Memory cartridge Index Menu Change DATE/TIME Change SUMMER/WINTER, 83 Clear Prog 35007143