Event of a power failure | Schneider Electric SR2MAN01 instruction

Debugging an Application

Smart Relay Reaction to a Power Failure

Description	A power failure may cause the smart relay to restart and lose any data not saved.
	Smart relays have the ability to save the current time for at least 10 years.
	In addition, it is also possible to back up the variables configured with the Latching
	option defined in the parameters window.

Latching	The Latching function is used to save the state of the counter’s current values in the
	event of a power failure.

The blocks that have this function are the following:

zIn LD mode:

z Auxiliary relays, z Discrete outputs, z Timers

z Counters

z Fast counter,

zIn FBD mode:

z AC, BH, Li timer,

z Cam programmer function CAM BLOCK,

z PRESET COUNT, UP DOWN COUNT counter, z PRESET H-METER hour counter,

z Data archiving function ARCHIVE, z Fast counters.

172	SR2MAN01 11/2007

Image 156

Schneider Electric SR2MAN01 user manual Smart Relay Reaction to a Power Failure, Option defined in the parameters window

Contents

Zelio Logic Smart Relay 11/2007 Table of Contents Configuration Menu Default MenuClear Program Menu Transfer Menu Diagnostics Implementing a Basic ApplicationDebugging an Application Sample Application Safety Information Important Information Safety Information About the Book At a Glance Initial Power up and Discovering Chapter Name 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 Presentation of the Smart Relay Front Panel U 2 5 S E P 1 6 4Introduction Description Smart Relay Front Panel Description of the LCD An Active input or output is displayed in reverse videoPrompt Element Characteristics and Connections RegulatedRectified and filtered Control Keys on the Front Panel of the Smart Relay N / S T O PShift Key Menu/OK Key Round for a link only in programming mode Zx KeysAre marked above the keys Navigation keys are used to move left or right, down or up Using the contextual menu functions ContextualMenus Contextual menu appears Illustration Ins + Param Del Examples Introduction Language SelectionStep Action 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 Then Times in LD mode Modification of Date and HourView 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 Functions Accessible from the Front Panel Subject of this Section Whats in this Part?Chapter Chapter Name Overview of the Functions Accessible from the Front Panel Line flashes to indicate where you are positionedTo return to the previous menu, press left navigation key Certain menus are specific to either LD or FBD mode ConfiguringDifferences Between LD FBD Modes Extensions Input/Output Screen Programming type LD or FBD Mode Stop or RUN Inputs-Outputs Screen3 4 5 N 2 2 S E P 1 5 5 Access to Main Menu Switching Between Screens Text and Display screenL u e c o u n t e r 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? Rules for Entering Ladder Diagrams Smart relay allows you to enter 120 line Ladder diagramsFollowing manner M1----I4-I5-I6-Q1 Rules Incorrect Correct Method for Entering a Contact or Coil Description Entering an ElementIns 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 Entering Parameters on Creation of the Block Ins. + Param DelModifying Parameters Existing Blocks To modify the parameters of an existing element, simply Deletion and Insertion of Diagram Lines DeletionInsertion LD mode Parameters MenuParameters menu FBD mode Parameter Modification RUN Mode Monitoring Menu To modify the parameters, proceed as follows RUN/STOP Menu StartupFollowing three choices for starting the program O P Off Smart Relays Without Screen Configuration Menu Password Menu Password to perform certain operations Entering Password PasswordE a R 1 Removing E a R 2 3 0 M I N U T E S Filter Menu Description Filter-Type SelectionFiltering Commutation Response time Slow 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 Program Menu Clear Prog MenuDescription Clearing the Program Transfer Menu L I O M E M O R YM O R Y Z E L I O Module → Backup Memory Transfer Backup Memory → Module Transfer RUN, remove the Eeprom cartridge SR2 MEM02 Absence of backup memory ApplicationIncompatible With firmware on Use of SR2 MEM01 and SR2 MEM02 Version Menu D U L E S R 3 B 2 6 1 B DR D W a R E 0 1 R M W a R E 0 1 1 4 1 B D Language Menu A L I a N O Default Menu Fault MenuFault 0 0 Reset to Zero of the Fault Counter Illustration Fault Types Default Menu Change DATE/TIME Menu A N G E Clock Configuration ExampleSteps 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 Ladder Diagrams Diagram Panel of a smart relayIntroduction Composition Normally open mode Normally closed modeDiscrete Inputs Use as a Contact Modification State of aContact Zx Keys Normally open mode direct state is inactive Normally closed mode reverse state is activePlace the mouse over the letter representing the contact Auxiliary Relays They can be used as internal variablesContact Contactor mode Impulse relay modeLatch mode Unlatch mode Normally open mode Modifying the Mode of a Coil or a Contact Following inputs I1, I2, I3, I4, I5 and IB Latching InitializationActivated Window Discrete Discr Outputs Smart relay and any extensions SQ1 Window associated with the output Timers Coil TT Command Input Coil RC Reset InputCommand input Reset input Type of timer Preset value Unit Symbol Form Maximum valueTime unit Parameter lock Command input timing diagram Timer typeNumber Parameter Description Time unit Following diagram shows the operation of the type a timer Off delay type CFollowing diagram shows the operation of the type C timer Active, control held down type a Combination of a and C On pulse one shot type BTiming after pulse type W Following diagram shows the operation of the type D timer Following diagram shows the operation of the type L timerFlasher unit, control held down synchronously type D Flasher unit, Press to start/stop, Synchronous type d Following diagram shows the operation of the type T timer Normally closed mode inverse state is activeTime on addition type T Current values is are zeros Preset value t Illustration Timers configuration screen Coil RC Reset Initial Counter State Input CountersCoil CC Counting Pulse Input Coil DC Counting Direction input Reset Initial Counter State input Every time key Z1 is pressed, the counter starts fromCounting direction input Contact is conducting as long as Type of counting Number Parameter Description Command input Counter reset input timing diagramCounter output Counter output timing diagram Initialization R Counting Mode toward the preset value Current value is zeroExamples Fast Counter Coil TK1 Enable function input Coil RK1 Reset initial counter state inputEnable function input 120 Symbol of the Duration of pulse parameter Cycle typeDuration of pulse Symbol of the Parameter Lock parameter Verrouillé Value Counter reset to its initial state Current CounterNumber 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 Configuration from Front Panel Xl Comparison OperatorX1 H ≤ x2≤ x1 + H Values to compare Reference value Hysteresis parameterParameter locking N a L O G ≤ ξ 2 ≤ x 1 + H= 4 = R = 1 = I e N a L O G ≤ x = I d = I e Temperature is below 20 C Comparison operator no is chosen, that is ≤ Mode or its inverse state mode normally closed, see below Symbol of the normally open contact, representing a clockSymbol of the normally closed contact, representing a clock Clocks D / W O N O F F RelayNumber Parameter Operating ranges Day at Interval Start on Friday at End on Monday at 2 3 4 2 3 Texts These function blocks are used as coilsOnly the block with the highest number is displayed Display from the Text screen to the inputs-outputs screen Display Activation coil Display Deactivation coil Display ActivationDisplay deactivation LCD Screen Backlighting Used as a Coil Access Change to Summer / Winter TimeCheck the Activate Summer/Winter Time Change box Modifying the Mode of a Coil or a Contact Initialization Europe Europe Modbus Inputs/Outputs Smart relayWords 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 Presentation of Ladder Diagrams Works a two-way switchNormal electrical diagram Ladder diagram Module Wiring Below, an illustration of smart relay wiring Operation Can be used in place of two position switchesMon Using the Reverse Function Input I wired on the smart relay Electrical diagram Connection to the smart relay Ladder diagram 1 Light off when idlePractical Example Off delay Operating Electrical diagram Electrical symbol Ladder symbol Notation Used by the Smart RelayEquivalencies Between Notations 156 Application Implementing a Two-way Switch Description Go to the Programming ScreenStep 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 Joining the Second Line to the First To join the second line to the first, proceed as followsSecond 1 in the second line Flashes Launching the Program To launch the program, proceed as followsProgramming is selected Debugging an Application Module in RUN Mode Viewing Status N L D Menus RUN mode Dynamic Mode Ladder Diagrams Viewing Ladder DiagramsChanging Ladder Diagrams Using Z Keys as Pushbuttons 3 4 5 N 2 2 S E P 1 5 5 Dynamic Mode Function Block Parameters AccessingPresentation Dynamic Mode Menus Dynamic ModeMenus Not. Here is a summary table Smart Relay Reaction to a Power Failure Event of a power failureOption defined in the parameters window Safety Mode With the clock function block 1 configured as followsExample of a non-locked coil Backup and Transfer of Ladder Diagrams19 Saving and Transferring Ladder DiagramsMemory optional and vice-versa This allows Sample Application Specifications Specification Analysis InputsButton Outputs Special function blocks Smart relay label Name Implementing the Solution Description Implementing Ladder Diagram O F F 1 2 0 Function Blocks Function block Comment Analog function block A1 Compares the measured CO 2 levelWith the threshold value 8.5 Fan operating duration if the CO Diagnostics Chapter Name Diagnostics 187 Smart Relay Messages 188 Frequently Asked Questions 189 Relay, their possible causes and how to remedy the problem Smart Relay MessagesMessage Cause Corrective action Frequently Asked Questions Questions are listed here Frequently Asked QuestionsAnswer Appendices This section contains product-related appendicesAppendix contains the following chapters Appendix? Compatibility Subject of thisChapter Smart relay firmware version Version Memory Cartridge to Smart Relay Type of memory cartridge Version of firmware compatibleSmart relay firmware language Memory cartridge Index Menu Change DATE/TIME Change SUMMER/WINTER, 83 Clear Prog 35007143