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ITRON CENTRON CP1S, Technical Reference Manual

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Operation: CP1SD/T/L Version  
 
 
 

34 

CENTRON® Polyphase Meter Technical Reference Guide

 

Load Emulator 

The Load Emulator follows the Infrared Test LED. For each pulse of the Test LED, the 
Load Emulator increments one segment. The operation of the Load Emulator depends on the 
quantity being pulsed. 

ƒ

 

If the quantity being pulsed is “Delivered-Only”, then the Load Emulator scrolls to the 

right when energy is being delivered and lights the left arrow when energy is being 
received. 

ƒ

 

If the quantity being pulsed is “Received-Only”, then the Load Emulator scrolls to the 

left when energy is being received and lights the right arrow when energy is being 
delivered. 

ƒ

 

If the quantity being pulsed is “Delivered and Received”, then the Load Emulator 

scrolls to the right when energy is being delivered and scrolls to the left when energy is 
being received. 

When the meter is in Toolbox mode, the Load Emulator does not follow the Test LED. 
Instead, the operation of the Load Emulator depends on the quantity that is currently being 
displayed. If the quantity being displayed is a Phase quantity, then the Load Emulator scrolls 
to the right if energy flow on that phase is currently delivered or scrolls to the left if energy 
flow on that phase is currently received. If the quantity being displayed is a Diagnostic 
Counter, then the Load Emulator is turned off. 

The figures below represents a typical progression of the Load Emulator segments: 

 

Figure 22: Load Emulator Segment Progression for Delivered Power 

Summary of Contents for CENTRON CP1S

Page 1: ...0 831 8598 FCC Part 15 247 Transmitter Certification Frequency Hopping Spread Spectrum Transmitter Test Report FCC ID SK9C3A 1L FCC Rule Part 15 247 ACS Report Number 06 0013 15C Manufacturer Itron El...

Page 2: ...CENTRON Polyphase Meter Technical Reference Guide Effective Date January 2006 DRAFT...

Page 3: ...Inc The information contained in this document is subject to change without notice Itron Inc reserves the right to change the product specifications at any time without incurring any obligations Trade...

Page 4: ...5 OF THE FCC RULES OPERATION IS SUBJECT TO THE FOLLOWING TWO CONDITIONS 1 THIS DEVICE MAY NOT CAUSE HARMFUL INTERFERENCE AND 2 THIS DEVICE MUST ACCEPT ANY INTERFERENCE RECEIVED INCLUDING INTERFERENCE...

Page 5: ...quipement L op ration est sujette aux deux conditions suivantes 1 ce dispositif peut ne pas causer l interf rence nocive et 2 ce dispositif doit accepter n importe quelle interf rence re ue y compris...

Page 6: ...the end of the meter s useful life under various state and local laws it may be illegal to dispose of certain components into the municipal waste system Check with your local solid waste officials for...

Page 7: ......

Page 8: ...g Information v Chapter 1 General Information 1 About This Manual 1 General Description 2 Physical Description 2 Meter Base 2 Personality Modules 3 Product Availability 4 Outputs 4 Display Functions 4...

Page 9: ...n Scheme 27 FCC Regulations 28 Tamper Detection 28 Testing the CENTRON CP1SR Tamper Counter 28 SCM Testing 28 Retrofitting the CP1SR Personality Module 29 Testing Troubleshooting and Maintenance 30 Ch...

Page 10: ...9 Interrogation and Programming 49 Interrogation 49 Programming 50 Time of Use TOU 50 TOU Schedules 50 Calendar Schedule 50 Rates 50 Daily Patterns 51 Day Types 51 Seasonal Schedules 51 TOU Registers...

Page 11: ...leshooting and Maintenance 82 Visual Indicators 82 Infrared Test LED 82 Annunciators 82 Load Indication Direction Annunciator 83 Phase Voltage Indication Annunciators 83 Nominal Voltage Indication Ann...

Page 12: ...CP1SR Meter 23 Figure 18 CP1SR LCD 25 Figure 19 CENTRON IDM High Power SCM IDM Transmission Scheme 27 Figure 20 CP1SR FCC Label Location 29 Figure 21 CENTRON Polyphase Meter LCD 32 Figure 22 Load Emul...

Page 13: ......

Page 14: ...n Provides a general description operation physical and functional descriptions and complete CENTRON Polyphase meter specifications Installation Gives instructions for the proper handling and installa...

Page 15: ...rious personality modules that mount to the standard meter metrology base The personality modules available include the following versions Energy only CP1S LCD Energy only with radio frequency AMR CP1...

Page 16: ...example of the metrology is shown below Figure 1 CENTRON Polyphase Meter Metrology Personality Modules All of the personality modules in the CENTRON Polyphase meter family snap into the module holder...

Page 17: ...T L Demand TOU LP CP1SR2 R3 R300CD R300CD3 Outputs The CP1SD CP1ST and CP1SL personality modules are available input output ready I O ready These modules contain circuitry that allows future function...

Page 18: ...ctor 0 3 50 power factor Transient Surge Suppression ANSI C37 90 1 1989 IEC 61000 4 4 ANSI C62 45 1992 Characteristic Data Temperature Rise Meets ANSI C12 1 Section 4 7 2 9 Technical Data Meets applic...

Page 19: ...ON Polyphase Meter Technical Reference Guide Dimensions The following dimensional measurements are shown in inches and centimeters Figure 3 Dimensions A B C D E Polycarbonate 6 29 16 00 6 95 17 70 2 7...

Page 20: ...ty 50 environment between 40 C to 85 C 40 F to 185 F Avoid prolonged storage more than one year at temperatures above 70 C 158 F Store the meter in the original packing material Unpacking As with all...

Page 21: ...t number of digits 4 or 5 If the register only displays a Segment Test all display items shown and flashes norDisplay or 3BReset then the register has not been programmed Verify that no errors are dis...

Page 22: ...nnector only remove it when you are upgrading the meter Figure 4 Removing the Board to Board Connector 5 Remove the register module one side at a time by pulling gently outward on the meter frame snap...

Page 23: ...bottom of connector to mate the connector to metrology board Then gently press the top of the connector to mate it to the register module The connector is seated correctly when you hear it snap into p...

Page 24: ...r Engage the top snaps first taking care to place the slot at the top of the cover over the IR light pipe Failure to do so could break the light pipe Ensure that all four meter base tabs are engaged w...

Page 25: ......

Page 26: ...Line IBias VA Magnetic Core Hall Sensor A D DSP Wh VAh VARh PF LED VBias Figure 8 CENTRON Polyphase Metrology The metrology performs the direct sampling of the voltage and current waveforms and the ra...

Page 27: ...ing The analog to digital converter samples each phase voltage and current signal 32 times per line cycle and sends the digital values immediately to the microprocessor This amounts to 32 samples per...

Page 28: ...Operation Base Metrology CENTRON Polyphase Meter Technical Reference Guide 15 Voltage and Current Measurement Figure 10 Voltage and Current Measurement...

Page 29: ......

Page 30: ...ilable with an LCD personality module to register energy accumulation Figure 11 CP1S LCD Personality Module The LCD module may be ordered with a 5x1 or 4x10 register for self contained meters and a 5x...

Page 31: ...This is done using the ZRO C2A Resetter Need new photo Registers Kilowatt Hours The modules display energy in increments of whole values of kWh Standard operation for all modules is to add forward and...

Page 32: ...nstall the probe to ensure the meter has had sufficient time to power down The device connects to the CENTRON Polyphase meter through a hole in the plastic inner cover located at the 12 o clock positi...

Page 33: ...etented Register The Detented Register addresses applications requiring the reading of delivered kWh only Received energy is discarded DET kWh VA VB VC Figure 14 Delivered kWh with Detent Enabled kWhd...

Page 34: ...tions Display Timing The display will scroll between the billing register and the segment check mode based on the factory programming option Option Description 1 7 second billing register display 1 se...

Page 35: ...g Troubleshooting and Maintenance Diagnostic Display OFF Period Notes Metrology message stopped for greater than 15 seconds and less than 10 minutes Error Missing message with diagnostic flag also wri...

Page 36: ...nsmission Scheme 27 Tamper Detection 28 Retrofitting the CP1SR Personality Module 29 Testing Troubleshooting and Maintenance 30 The CP1SR module is a one way unlicensed radio frequency RF personality...

Page 37: ...message indicates that the device is sending this message supports transmitting a single SCM in the XXXXX format Interval Data Message IDM The ERT type 7 SCM and an ERT type 24 IDM message indicates...

Page 38: ...e CP1SR uses a unique module identification number provided by Itron This ID number is contained in each message transmission and is used by the handheld and billing system to determine meter identity...

Page 39: ...x40 and x80 applications This allows the meter to display and transmit via RF primary readings Meters are labeled accordingly when factory programmed The display will scroll between the billing regis...

Page 40: ...of random silent time The silent time is determined by the scaling factor which sets a minimum and maximum silent time between each transmission cycle The transmission frequencies within the 910 920...

Page 41: ...ted with a power outage 1 Place the meter in a socket 2 Apply power to the meter 3 Remove the meter from the live socket 4 Replace the meter in the socket The meter has incremented the removal tamper...

Page 42: ...g the CP1SR Personality Module The CENTRON R300 is a one way radio frequency personality module that transmits within the unlicensed 910 920 MHz frequency band governed by the US Code of Federal Regul...

Page 43: ...user s authority to operate the equipment To retrofit an existing meter with an R300 module see Retrofitting with Personality Modules on page 8 Testing Troubleshooting and Maintenance Diagnostic Disp...

Page 44: ...n Site Monitoring System 61 Testing Troubleshooting and Maintenance 82 This chapter describes the basic operation of the CENTRON Polyphase meter D T L Register It also explains how to configure the D...

Page 45: ...ion of the meter nameplate The LED can be configured to pulse based on any of the following energy quantities Wh delivered received Varh delivered received Q1 Q4 VAh delivered received arithmetic or v...

Page 46: ...ormal Mode TEST Entry into Test Mode ALT TEST Entry into Test Alternate Mode The indicators shown in the table above actually display in a digital readout font some characters may display as upper cas...

Page 47: ...livered If the quantity being pulsed is Delivered and Received then the Load Emulator scrolls to the right when energy is being delivered and scrolls to the left when energy is being received When the...

Page 48: ...Reference Guide 35 Figure 23 Load Emulator Segment Progression for Received Power Several uni directional quantities are available When these quantities are programmed to LED both the LED and the load...

Page 49: ...Q3 Var delivered Lag varQ1 varQ2 Var received Lead varQ3 varQ4 Magnetic Switch The magnetic switch allows for manual switching between display modes as well as scroll lock of display items To activate...

Page 50: ...a factory reset A factory reset is also referred to as a three button reset All programming of the meter will be lost when a factory reset is performed All security codes are also cleared To perform...

Page 51: ...hen the meter s clock will be off by the duration of the outage and the TOU data and some Load Profile data will be lost Load Profile data is periodically committed to flash as described in the Load P...

Page 52: ...and Toolbox Display Mode In the Test Mode of operation there are two display mode options Test Display Mode and Test Alternate Display Mode When the meter is placed in Test Mode it ceases all normal...

Page 53: ...s associated with a display mode is called a display list Test and Test Alternate modes employ the same display list The CENTRON Polyphase meter can display a maximum of 80 items The display list is d...

Page 54: ...ered received arithmetic vectorial X X X VAh lag vectorial X X X Qh delivered received X X X Vh Phase A Phase B Phase C Average X X Ah Phase A Phase B Phase C X X V2 h Aggregate X X A2 h Aggregate X X...

Page 55: ...X X X Max A per phase A B C X X PF Average X X Min P F X X Coincident Demands up to 4 X X Instantaneous Data Display Items Display Mode Instantaneous Data Display Item Normal Alternate Test Toolbox3...

Page 56: ...Time X X Load Profile Pulse Weight 1 8 X X Load Research ID X X Last Season Self Read Registers X X Meter ID Meter ID 2 X X Minutes on Battery X X Normal Kh Normal Kh 2 Alternate Kh X X Number of Subi...

Page 57: ...ctivating the magnetic switch The display will remain in the scroll lock condition until a mode timeout occurs or until the display mode is changed Changing Display Modes When the magnetic switch is a...

Page 58: ...ayable items is a fixed list dependent on the service type You can enter the Toolbox Mode from either Normal or Alternate Mode While in Toolbox Mode a flashing TEST appears on the left side of the dis...

Page 59: ...eout period the meter automatically returns to the Normal Display Mode Test Display Mode The Test Mode can be accessed from either the Normal Alternate or Toolbox Mode by removing the meter cover and...

Page 60: ...will return to Normal Mode at the completion of Mode Time out Diagnostic Displays The user may program the behavior that the meter should exhibit for every specific error condition The possible action...

Page 61: ...can be calculated from any of the eight selected energy quantities The user can configure up to ten demand registers The D T L Register can compute three types of demand Block Demand Rolling Demand or...

Page 62: ...lf Read and Snapshot Registers There are up to fifteen self read registers available in the D T L Register depending on the particular version All meters have two snapshot registers that store self re...

Page 63: ...lidays When using the TOU functions of the meter energy and demand registrations are segmented into time blocks during the day Each time block is assigned one of four rate periods In addition to these...

Page 64: ...ours or can be designated through programming to occur at the first demand reset following the season change date TOU Registers The D T L Register can measure up to eight energies and ten demands When...

Page 65: ...occur at the first demand reset following the season change date to make season changes concurrent with the meter reading cycles The following events take place when an automatic demand reset occurs a...

Page 66: ...ncrements There are up to 8 channels available for interval load profile data Bit Resolution The load profile operates with 16 bit data resolution Equivalent pulse count resolution is as follows Bits...

Page 67: ...restoration for meters with batteries Channel Configuration The D T L Register can be programmed to have one to eight channels of interval load profile data Each channel corresponds to an energy regi...

Page 68: ...h interval contains eight types of status bits written into each data interval 1 Partial Interval The status bit is set for a partial interval due to a time adjust power outage or beginning interval 2...

Page 69: ...0 60 100 120 150 200 300 601 5 8 16 25 33 41 50 83 100 125 166 250 500 6 7 14 21 28 35 42 71 85 107 143 214 429 7 6 12 18 25 31 37 62 75 93 125 187 375 8 5 11 16 22 27 33 55 66 83 111 166 333 Event Lo...

Page 70: ...nostic 2 condition went away Diagnostic 3 On diagnostic 3 condition occurred Diagnostic 3 Off diagnostic 3 condition went away Diagnostic 4 On diagnostic 4 condition occurred Diagnostic 4 Off diagnost...

Page 71: ...access and firmware download Access to the meter is unrestricted All read write functions are available including all programming options the ability to download new firmware to the meter and upgrade...

Page 72: ...Master PC can then read data from and reprogram the meter The remaining two PCs are configured so that the same customers are in each database but each PC PRO Advanced software is configured with a s...

Page 73: ...on the PC You must install the D T L Register firmware on your computer to make it available to PC PRO Advanced You can obtain firmware upgrades through your Itron Inc Sales Representative You can ins...

Page 74: ...a to be transmitted as well as the number of decimal place digits for the data Select one of three date formats to be transmitted as ERT information Enable TOU and select the TOU rate to be transmitte...

Page 75: ...c diA 5 A fatal error indicates an internal meter problem which ceases all meter functions except communications These errors cause the display to lock on the error code until the meter is re initiali...

Page 76: ...understood about the SiteScan system Definition 1 The per phase information displayed in the Toolbox Mode is referenced to the internal voltage and current sensors of the meter The meter will designat...

Page 77: ...rmine the phase sequencing of the site The figure below provides an example of the plot for Toolbox Mode information No matter how the phasor information is plotted whether the user plots the same as...

Page 78: ...aphically plotted into the phasor diagram shown in the figure above By simply viewing the phasor diagram several facts about the site become clear There are no wiring problems currently at the site Bo...

Page 79: ...t level It may indicate problems such as current diversion and open or shorted circuits among others SiteScan Diagnostic 4 Phase Angle Displacement Check Similar to Diagnostic 1 but this diagnostic al...

Page 80: ...agnostic error will not be displayed on the meter display or increment the diagnostic counter Ignore The diagnostic error will not be displayed on the meter However the diagnostic error will still inc...

Page 81: ...Reference Guide IA IB IC A B C Line Load 270 0 180 90 Ic Vc IA VA A C 210 B N N IB VA VC N VB VB CBA Rotation Expected vector diagram at unity power factor with load connected line to neutral 330 Figu...

Page 82: ...sion CENTRON Polyphase Meter Technical Reference Guide 69 B IA IB IC 270 0 180 90 Ic Vc IA VA A B C Line Load A C 240 N N IB 120 VA VC N VB ABC Rotation VB Figure 28 Form 9S CENTRON Polyphase Meter 4...

Page 83: ...0 CENTRON Polyphase Meter Technical Reference Guide IA VA IB VB IC Vc N A B C Line Load N A C B A B C N 270 0 180 90 Ic Vc IA VA 210 IB VB CBA Rotation 330 N Figure 29 Form 16S CENTRON Polyphase Meter...

Page 84: ...ce Guide 71 IA VA IB VB IC Vc N 270 0 180 90 Ic Vc IA VA 120 Expected vector diagram at unity power factor with load connected phase to neutral A B C Line Load A C 240 B N N A B C N VB IB ABC Rotation...

Page 85: ...lead direction Cross Phase Polarity and Energy Flow Check Although the diagnostic checks occur every 5 seconds once every second the meter determines the angle of each voltage and current phasor with...

Page 86: ...system with ABC phase rotation but the site was wired with a voltage circuit having the incorrect polarity reverse VT The first step of diagnosing an error is to place the meter into the Toolbox Mode...

Page 87: ...nostic counter d1 has incremented to 001 SiteScan Diagnostic 2 The purpose of this diagnostic is to verify that each individual phase maintains an acceptable voltage level with respect to phase A Beca...

Page 88: ...atio The meter was also programmed with a percentage tolerance of 10 The following is the information from the SiteScan snapshot when the Diagnostic 2 error is triggered Phase A Display Left Element P...

Page 89: ...unction During the test if one or more currents fall below the user defined low current threshold and at least one current is above this level then a diagnostic error is triggered Inactive Phase Curre...

Page 90: ...V Current Phase Angles PhA 9 0 A PhB PhC 246 0 A Phase Current PhA 11 8 A PhB PhC 5 2 A Diagnostic Counters d1 000 d2 000 d3 001 d4 000 d5A 000 d5B 000 d5C 000 d5T 000 d6 000 The second step to diagno...

Page 91: ...low end threshold current for Diagnostic 4 is adjustable based upon the class of the meter from 0 5 of class to 5 of class Phase Angle Displacement Check Diagnostic 1 must be enabled and must pass fo...

Page 92: ...example is for a Form 9S meter wired for a 4 Wire Wye system with ABC phase rotation but the site has a poor load power factor condition The meter was programmed with a tolerance level of 45 for Diag...

Page 93: ...may need to be corrected Also note that diagnostic counter d4 has incremented to 001 SiteScan Diagnostic 5 The purpose of this diagnostic is to check for the presence of DC on any of the current phas...

Page 94: ...ll ignore The number of times DC was present is available through meter communications on a per phase basis The number of times that DC was present on all phases is available by accessing the Toolbox...

Page 95: ...hooting fatal and non fatal errors Maintenance Visual Indicators The Infrared Test LED as well as several other annunciators assist you in testing and troubleshooting the CENTRON Polyphase meter Infra...

Page 96: ...lls to the right when energy is being delivered and scrolls to the left when energy is being received When the meter is in Toolbox mode the Load Emulator does not follow the Test LED Instead the opera...

Page 97: ...r and requires no calibration adjustments Verification of accuracy of energy and demand may be verified in many ways Testing With the Infrared Test LED Verification of metered energy values by the met...

Page 98: ...a reference standard can be read directly from the display and compared over a period of time Energy readings displayed while the meter is in the Test Mode are in floating decimal format This will re...

Page 99: ...problems previously described can probably be corrected by implementing one of the following suggestions Even if there are no bad readings Solution 3 can cut the total test time significantly without...

Page 100: ...unding up for fractional values The total test time for a series FL PF LL sequence can be shortened by more than one minute compared to the time required for an electromechanical meter or a solid stat...

Page 101: ...off only the current to both the meter and the standard 3 Reset and enable the pulse counting device 4 Put the CENTRON Polyphase meter into Test Mode by pressing the Test switch Once this has been do...

Page 102: ...Kh x N 1000 where Kh watt hours per pulse output value from the reference standard A watt and or a VA standard must be used PT Total pulses accumulated from the reference standard N Coil factor See T...

Page 103: ...ounter switches The adapter will automatically start the test when the START COUNT button is pressed When the test begins the test pulse adapter counts the pulses it receives from the meter until the...

Page 104: ...trieve any meaningful data from the meter prior to performing the Factory Reset After this is performed the meter must be reprogrammed Sometimes when a battery is plugged into a meter while the meter...

Page 105: ...urn the meter for repair FAt Error7 Operati ng System Error The meter has detected a problem with the operating system If the meter detects this problem return the meter for repair Non Fatal Errors No...

Page 106: ...outage and Load Profile and TOU will be halted When the battery is replaced a set clock procedure is needed to clear low battery error condition This will also restart TOU and clear and restart Load P...

Page 107: ...tested upon power up A set clock with a good battery present will clear this error Be sure to read the Load Profile data prior to setting the clock to clear the error The dead battery will cause some...

Page 108: ...Pickup demand delay has been selected Accumulation will begin immediately after demand delay has expired Verify meter program and reconfigure meter Component Failure Return the meter for repair Meter...

Page 109: ...Meter Optical Probe Cable Assembly Failure Check cable with known meter that communicates Check meter against known cable that is functioning Also check batteries in cable assembly if applicable COM P...

Page 110: ...the CENTRON Polyphase meter Line potential may exist on the battery terminals Follow these precautions Never short circuit batteries such as by measuring current capability with an ammeter Do not rech...

Page 111: ......

Page 112: ...the display sequence magnetic reed switch A mechanical switch consisting of a thin metal contact which is closed by an external magnetic field E N EEPROM nonvolatile memory Electrically Erasable Progr...

Page 113: ......

Page 114: ...8 Counters Are Too High 98 cover 7 inner 8 See also inner cover and outer cover 8 Cross Phase Polarity and Energy Flow Check 73 Crystal Time synchronization 7 Current Angle Tolerance 73 Current Season...

Page 115: ...ner cover 8 removing 8 input output ready 4 Inspection 7 Installation 7 Installing D T L Register Firmware on the PC 60 Installing the Meter into Service 8 Instantaneous Data Display Items 42 Instanta...

Page 116: ...23 25 handling 7 Personality Modules 3 Phase Angle Displacement Check 79 Phase Voltage Deviation Check 76 Phase Voltage Indication Annunciators 84 Physical Description 2 17 25 Power Circle Quadrants 3...

Page 117: ...r Detection 28 tamper indication 28 Technical Data 5 Test Alternate Display Mode 47 Test Description 86 Test Display Mode 46 Test Method Using a Snap Switch Assembly 91 Test Method Using Infrared Puls...

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