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1. lt i a43592 iad fi BBP PRS UNIT OK 1 0 ENABLED P s U The Power Monitoring Block can be powered from either 115 230 VAC 90 265 VAC 47 63 Hz or 125 VDC 100 150 VDC at 1 amp maximum It can be installed on electrical distribution or process equipment in a junction box or rack or panel mounted up to 7500 feet from the host Use of a Hand held Monitor also allows stand alone operation The block s Electronics Assembly may be inserted or removed without disturbing block configuration or field wiring no CT shorting clips are required 2 GFK 0366E Content of this Datasheet This datasheet describes the features and installation Operation page 2 Installation 4 Configuration 8 Specifications 10 For additional information see the Power Monitoring Block User s Manual Operation The Power Monitoring Block uses both analog and digital techniques to provide accurate and stable RMS measurements even in the presence of higher order harmonics These measurements are fully updated about twice a second To accomplish this the block samples all current and voltage inputs at an equivalent rate of 128 samples per cycle Samples are taken at the rate of 16 samples per cycle for 8 consecutive cycles These composite waveforms are stored in a Working Data Table for computation of the new mea2. From these values the block calculates RMS values of voltage current active power reactive power KWH and power factor Frequency is also measured The block automatically sends this calculated data to a programmable controller or host computer approximately twice per second The same data can be displayed on a Hand held Monitor from any location on the bus If an overcurrent transient exceeds a configurable level the block captures the resulting waveform A simple measure of system harmonic content indicates the extent to which this problem exists The block will supply waveform data to the PLC or computer for harmonic or transient analysis upon request The block can be used with a wye or delta configured three phase power system or with a single phase Power Monitoring Block IC66 BPM100 GFK 0366E power system It accepts voltage inputs from as many as three potential transformers and current inputs from one to three line current transformers plus a neutral current transformer The turns ratios of both current transformers and potential transformers are software configurable Current transformers with a secondary rating of up to 5 amps and primary ratings up to 3275 amps for line connections or 325 amps for auxiliary neutral connections may be used Potential transformers with a secondary rating up to 120VAC 47 63 Hz and primary ratings up to 327KV may be used with line to line or line to neutral connections W
3. C 40 F to 212 F 5 to 95 non condensing 1 0 G 10 200Hz 5 21 w X 11 00 h X 8 06 d 13 23cm w X 27 94cm h X 20 47cm d m Electronics removable from terminal strip while maintaining electrical continuity on CT secondaries m Designed in accordance with UL and CSA ANSI C37 90 NEMA 2 230 IEEE 587
4. in each illustration will provide a reading for that input Wiring from Potential Transformers Refer to the examples below to connect potential transformers to the Power Monitoring Block For proper calculation of power values the block s R S and T terminals must be connected to these line to neutral PTs R terminals Phase A to neutral PT S terminals Phase B to neutral PT T terminals Phase C to neutral PT Power Monitoring Block If there are just two line to neutral PTs one must be connected from phase A to neutral and to the block s R terminals The other must be connected from phase C to neutral and to the block s T terminals If there is just one line to neutral PT it must be connected from phase B to neutral and to the block s S terminals Short unused inputs 3 Line to Neutral Potential Transformers LINE SIDE a43600 N A B C ae 2 0 POWER 3 Le gt VOLTAGE 1 er Teh VN LOAD SIDE 3 Line to Line Potential Transformers For proper calculation of power values the block s R S and T terminals must be connected to these line to neutral PTs R terminals Phase B to phase C PT S terminals Phase C to phase A PT T terminals Phase A to phase B PT LINE SIDE a43601 A B Cc J Le TT ANAN G y J i 3 gt VOLTAGE Cc lle ee D YY LOAD SIDE Po
5. represents the maximum allowable current on the current transformers If a current transient above this level occurs the block will continue to store the waveform for the next five cycles and inform the CPU that a transient has occurred The CPU can then request the transient data from the block Auxiliary Overcurrent Transient A value in peak Amps which represents the maximum allowable current on a neutral current transformer This is handled as described above Sign Convention for VARs and Power Factor Selects the sign convention used by the block Send Extra Calculated Data Can be used to enable automatic sending of the block s additional calculated data see page 2 Selections Default PT Connection Number of PTs Number of CTs Power Display Units PT Turns Ratio CT Turns Ratio NCT Turns Ratio Current Line Transient Auxiliary Current Transient Sign for VARs and Power Factor Send Extended Calculated Data Baud Rate BSM Present CPURedundancy Config Protect line to line line to neutral 1 3 1 3 Watts MegaWatts KiloWatts 1 0 to 2730 0 1 to 6550 1 to 655 up to 4500A up to 450A Mode A or Mode B no yes 153 6 st 153 6 ex 76 8 38 4 Kbaud yes no none hot standby enabled disabled 3276 327 ModeA no 153 6 st no none disabled 10 GFK 0366E Power Monitoring Block Specifications Voltage Inputs Maximum NominalRange Overvoltagerange Transientrange Burden peri
6. 1aIHS Tidas Ano NI z SHIELD OUT If the block is the last device electrically on the bus connect a terminating resistor of the appropriate impedance across the Serial 1 and Serial 2 terminals If the block is being used by itself and not connected to a bus install a 75 ohm terminating resistor across the Serial 1 and Serial 2 terminals Wiring for Bus Continuity Bus connections are normally considered permanent They should never be removed while the completed system is in operation the resulting unreliable data on the bus could cause hazardous control conditions If the bus will control processes that cannot be shut down in the event it is necessary to remove or replace a block s Terminal Assembly bus connections can be made using intermediate connectors or wire ends can be soldered together before inserting them into the terminals For more information see the I O System User s Manual 5 GFK 0366E Wiring for Field Devices Power must be NOT be applied to the Power Monitoring Block or input terminals when completing the field wiring If conduit will be used to bring wires or cables for field inputs to the block its size and installation should be in accordance with local electrical code Power and Ground Wiring Block power may be froma 115 230 VAC or 125 VDC power source For a 115 VAC power supply connect the hot black wire to the H terminal Conne
7. ASSEMBLY a43597 RETAINING SCREWS ee QTY 2 CONNECTORS ELECTRONICS 3 Line up the notches in the top and bottom of the Terminal Assembly with the drilled holes Fasten it securely in place using up to 12 screws with star washers After installing the Terminal Assembly complete the block wiring as described on the following pages Wiring Information Each terminal can accept solid or stranded wires the wires into any given terminal should be the same type and size The terminals will accept bare wires or spade or ring lugs BusConnections The bus connection terminals can accept two copper wires up to size AWG 14 2 1mm cross section The suggested torque is 9 in lbs Power and Field Wiring Connections Connections to the remaining terminals can be made with copped conductors wire sizes up AWG 10 5 02mm cross section The suggested torque is 12 in lbs Power Monitoring Block Bus Installation To install the block on a communications bus connect its Serial 1 and Serial 2 terminals to those of adjacent devices Connect Shield In to the Shield Out terminal of the previous device Connect Shield Out to the Shield In terminal of the next device The unshielded ends of the wires should not be longer than 2 inches a43598 SERIAL 1 SERIAL 2 SHIELD IN S Y S S T
8. T QUALITROL L N ERNATIONAL This Datasheet for the IC660BPM100 Block Power TRAC 115Vac 125Vdc Power Monitor http www qualitrol com shop p 14447 ic660bpm100 aspx Provides the wiring diagrams and installation guidelines for this GE Series 90 30 module For further information please contact Qualitrol Technical Support at 1 800 784 9385 support qualitrol com August 1995 m Accurately measures the RMS values of voltage current power VARs power factor and watt hours even with distorted waveforms m Measures line frequency m Detects and captures overcurrent waveforms above a configurable current level m Indicates magnitude of system harmonic content m For both wye 4 wire and delta 3 wire systems m Simple user connections m Direct connection for up to three potential trans formers and three line current transformers plus one neutral current transformer Low current transformer burden less than 0 1VA m Software configurable including scaling m Small size and rugged design for mounting in elec trical distribution and process equipment m Integral power supply accepts either 115 230 VAC or 125 VDC inputs m Can be installed on bus up to 7500 feet from host Compatible with CPU redundancy configurations m Can be used for stand alone monitoring without a host The Power Monitoring Block IC66 BPM100 monitors current and voltage inputs and stores digitized waveform values for each input
9. by the PLC or computer Read Device datagrams This is described in the Power Monitoring Block User s Manual 4 GFK 0366E Installation Dimensions of the block are shown below When planning the block s location be sure to allow adequate clearance for routing wiring and for airflow around the block Also be sure to leave room at the front of the block for attaching a Hand held Monitor 8 06 20 47 gt 243039 j 18 46 l 5 21 13 23 gt fp ml ee 7 o gt A 27 94 H Y N z N DIMENSIONS IN INCHES CENTIMETERS IN PARENTHESIS The Power Monitoring Block is most easily installed with the Electronics Assembly removed Installing the Terminal Assembly 1 Drill four mounting holes as indicated below at the intended location 3 a43596 56 le 5 21 13 23 gt 43 1 09 4 Re 3 25 8 26 v ry D x 10 56 11 00 26 82 27 94 gammer y A DIMENSIONS IN INCHES CENTIMETERS IN PARENTHESIS Power Monitoring Block 2 Separate the block s Electronics Assembly from the Terminal Assembly Grasp the block firmly and pull the Electronics Assembly out straight away from the Terminal Assembly TERMINAL
10. ct the neutral white wire to the N terminal For 230 VAC connect the incoming line to the H and N terminals For a DC power supply connect the DC wire to the H terminal Connect the DC wire to the N terminal Complete the power wiring by attaching the ground wire to one of the ground screws on the block Ground the block by wiring one of its ground screws to the equipment chassis a43599 GROUNDING screw O a a a ALTERNATE GROUND CONNECTION POINT For correct calculation of power values PTs and CTs must be connected to the power phases and to the block as shown in the following diagrams If the PTs or CTs cannot be connected to the power phases as shown refer to the Power Monitoring Block User s Manual for instructions 6 GFK 0366E Current Voltage Input Terminals A R B S C T three A N B A C N Number of PTs two A N C N L N one B N three B C C A A B Number two B C A B of PTs L L one C A three phaseA phaseB phaseC Number of CTs two phase A phase C one phase B For personal safety PT AND CT SECONDARIES MUST BE GROUNDED Recommended grounding is shown in the diagrams that follow Power Flow Transformers should be connected to the block with the dots as shown in the wiring diagrams If this is done power flow in the direction indicated by the arrow
11. eptacle and connec tor edge board on the Electronics Assembly If nec essary remove any obstacles and reinsert the ElectronicsAssembly Pay close attention to the alignment of the guide pins 3 Secure the Electronics Assembly with the screws on the top and bottom 4 Apply power to the block Compatibility The Power Monitoring Block is compatible with Hand held Monitor version 3 5 or later provides basic compatibility with a Power Monitoring Block If the block is assigned to register references HHM version 3 8 is required to display the additional calculated data listed on page 2 PLC CPUs IC697CPU731G or later IC697CPU771E or later 1C697CPUxxx all versions IC600 series PLC CPU rev 105 or later IC600 PLUS series PLC CPU rev 110 or later IC655 series PLC CPU rev 4 0 or later Programming Software IC641SWP701 702 rel 2 02 or later IC641PBE series software release 4 02 or later IC641PFE500 or PTE series software release 2 01 or later Bus Controllers IC697BEM731C or later 1C66 CBB902 or 903 version 1 7 or later IC655BEM500 any version PCIM or QBIM any version Power Monitoring Block Power Monitoring Block Configuration The Power Monitoring Block must be configured with a Hand held Monitor to m Enter its Block Number serial bus device number m Enter its Reference Number not required for PCIM or QBIM The Power Monitoring Block requires 304 I O references Additional features of the bl
12. equired The PLC or computer must reserve memory space for the automatic transfer of 36 bytes of calculated data 16 bits of status data and 16 bits of command data with the Power Monitoring Block An IC600 series PLC must reserve 24 inputs and 16 outputs or 20 registers Inputs are multiplexed with the channel number in the MSB An IC655 series PLC must reserve 304 inputs and 16 outputs or 20 registers An IC697 series PLC must reserve 16 input bits for the block s status data 16 output bits for command data If the block is configured NOT to send the extra data described previously it requires 18 analog inputs for calculated data If it is configured to send the extra data it requires 30 analog inputs for calculated data If the PLC or computer will read table data for transient or harmonic analysis additional memory will be required Bus Scan Contribution The scan time contribution for the block depends on the baud rate the number of controllers on the bus and whether or not Extended Data reporting is enabled The following tables show the scan time contribution at each baud rate without Extended Data enabled or with Extended Data enabled At the baud rate selected use the time in column A if there is just one bus interface block on the bus capable of sending outputs to the block If a second bus interface block on the bus is also capable of sending outputs to the block use the time in column B instead E
13. nput Accuracy of measured voltages ConfigurablePT turns ratios CurrentInputs Nominalrange Transientrange Overcurrentwithstand Burden perinput Accuracy of measured current ConfigurableCT turn ratios Frequency Accuracy PowerMeasurement Accuracy Power Supply Requirements Terminal Wiring LEDs Functionality Voltage Current Active Power Reactive Power Power Factor KWH UpdateRate Frequency Block Ambient Temp Status Harmonics Environmental Operating Temperature Storage Temperature Humidity Vibration Dimensions Power Monitoring Block one to three phases delta or wye 60 to 120 VAC RMS at 47 to 63 Hz up to 300V peak up to 300V peak less than 0 1 VA 0 25 reading 0 25 full scale for nominal range 1 0 1 to 2730 1 up to 327KV one to three phases 0 to 5 Amps RMS at 47 to 63 Hz 5 to50 Amps RMS at 47 to 63 Hz 50 amps for 5 seconds at 10 minute intervals less than 0 1 VA 0 50 reading 0 50 full scale 655 1 up to 3200 amps 0 1Hz 0 75 reading 0 75 full scale PF 0 8 or greater 115 VAC 230 UC 90 265VAC 47 63 Hz or 125 VDC 100 150VDC at 35VAmax forI Obus one AWG 12 or two AWG 14 for power CTs and PTs up to AWG 10 Unit OK Communications OK Per phase Per phase and neutral Per phase Reactive Power Effective system PF Totalsystem 2 second system low normal high total harmonicpowercontent phase 0 C to 60 C 32 F to 140 F 40 C to 100
14. ock described below can be changed by configuration from the Hand held Monitor or the application program Selections and the default configuration of each feature are shown in the table at the bottom of the page Baud Rate May be 153 6 Kbaud standard 153 6 Kbaud extended 76 8 Kbaud or 38 4 Kbaud All devices on the bus must use the same baud rate CPU Redundancy Selects no redundancy or Hot Standby mode Configuration Protection Prevents accidental or unauthorized changes to the block s configuration PT Connection Specifies whether the potential transformer connections are line to neutral or line to line Number of PTs Specifies the number of potential transformers connected to the block 1 to 3 Number of CTs Specifies the number of line current transformers connected to the block 1 to 3 Does not include the neutral current transformer Default Configuration Feature 9 GFK 0366E Power Display Units Selects whether power measurements will be reported to the CPU as Watts Megawatts or Kilowatts This entry is also used to scale VARs power and energy PT Turns Ratio Specifies the turns ratio of the PT s Range is up to 327600 0 120 2730 0 1 maximum CT Turns Ratio Specifies the turns ratio of the CT s Range is up to 3275 5 6550 1 maximum NCT Turns Ratio Specifies the turns ratio of an NCT Range is up to 325 5 655 1 maximum Overcurrent Transient A value in peak Amps which
15. r 4 J le XJ LOAD SIDE 2 Line Current Transformers 1 Neutral Current Transformer If there are just two line CTs one must be connected from phase A to the block s A terminals The other must be connected from phase C to the block s C terminals LINE SIDE 243605 N A B C SINAN F POWER j i gt CURRENT o ae 9 9 J d gt XJ LOAD SIDE or 8 GFK 0366E 1 Line Current Transformer 1 Neutral Current Transformer If there is just one line CT it must be connected from phase B to the block s B terminals LINE SIDE a43606 N A B C 3 POWER z gt CURRENT gje 00000 ee OAO LOAD SIDE NEVER disconnect any current trans former wiring from the Power Monitor ing Block when current is flowing in the primary circuit The resulting hazardous voltages MAY CAUSE INJURY OR DEATH Install the Electronics Assembly The Electronics Assembly and Terminal Assembly are keyed to assure a correct installation 1 Align the Electronics Assembly Use the shoulder screws on the side of the Termi nal Assembly as a guide 2 Push the Electronics Assembly down quickly Power Monitoring Block Do not exert excessive force Damage to the equipment can result If unusual resistance is met remove the Electronics Assembly Check the keying and inspect the Ter minal Assembly connector rec
16. r phase A B and C reactive power phase A B and C total power factor totalWH KWH MWH for line to neutral PTs only Each bus scan the block sends these 36 bytes of calculated data to the PLC or host computer This data can also be displayed on a Hand held Monitor in either a system or stand alone configuration In addition to the above data the Power Monitoring Block calculates the following values fundamental VARs phase A B C fundamental Power Factor harmonic VARs as of V A phase A B C harmonic VARs as of total system V A line Frequency temperature alarm status extended watt hours All values are reported as 16 bit two s complement numbers Active Power Reactive Power and Power Factor are signed values Calculated data has the following valid ranges voltage 0 to 327 KVolts line current 0 to 3276 7 Amps aux current 0 to 327 67 Amps power 32768 to 32767 power factor 1 000 to 1 000 VARs 32768 to 32767 fund PF 1 000 to 1 000 har VARs 0 to 100 line freq 47 0 to 63 0 temp alarm 1 0 1 extended watt hours high 0 to 32767 extended watt hours low 0 to 999 Power Monitoring Block Status and Control Data The block also sends 16 bits of status data along with the 36 bytes of calculated data In return the PLC or computer sends 16 output control bits to the block each bus scan This transfer of status and control bits establishes a handshaking protocol CPU Memory R
17. surements The stored waveforms may also be used for harmonic analysis they can be read by the PLC or remote computer using Read Device datagrams This is described in the Power Monitoring Block User s Manual CURRENT a43593 VOLTAGE a INPUTS gt DATA la gt SIGNAL 1b IconDITIONING CALCULATED lc p ANALOG WORKING gt bata u ix peel DIGITAL DATA s CONVERTER Va MULTIPLEXER p vb gt SNA ae pPVERCURRENT gt Burer M Both voltage and current inputs are processed to maximize accuracy over the specified measurement range while still providing the ability to track overload conditions at a reduced accuracy Sampling is referenced to line frequency using phase lock loop circuitry All inputs are sampled simultaneously to maintain phase correlation The digitized inputs are also stored in another internal table called the Overcurrent Data Table in order to support overcurrent transient capture This feature is described on the next page Power Monitoring Block Calculated Data Approximately twice a second the Power Monitoring Block calculates the following RMS values based upon the current content of the Working Data Table voltage phase A to B voltage phase B to C voltage phase C to A voltage phase A to N voltage phase B to N voltage phase C to N current phase A B and C current auxiliary CT active powe
18. wer Monitoring Block 2 Line to Line Potential Transformers If there are just two line to line PTs one must be connected from phase B to phase C and to the block s R terminals The other must be connected from phase A to phase B and to the block s T terminals Connect the S terminals as shown LINE SIDE a43602 A B Cc SININ e e e Ps e 105 POWER gt VOLTAGE s e e D 3 IJ LOAD SIDE S 1 Line to Line Potential Transformer If there is just one line to line PT it must be connected from phase C to phase A and to the block s S terminals Short the unused inputs LINE SIDE a43603 A B C o 000 POWER P ONE gt VOLTAGE OO LOAD SIDE Wiring from Current Transformers Refer to the examples below to connect current transformers to the Power Monitoring Block For proper calculation of power values the block s A B and C terminals must be connected to phase A B and C respectively For safety current transformer burdens are permanently and directly connected across the block s 7 GFK 0366E current transformer input terminals No spring type contacts are used Burden is maintained with the electronics block removed 3 Line Current Transformers 1 Neutral Current Transformer LINE SIDE a43604 N A B C SINAN a POWER or gt CURRENT a
19. xtended Data Not Enabled Baud Rate A B 153 6 Kb st 3 30 3 66 153 6 Kb ext 3 38 3 74 76 8 Kb 6 76 7 48 38 4 Kb 13 52 14 95 3 GFK 0366E Extended Data Enabled Baud Rate A B 153 6 Kb st 5 02 5 38 153 6 Kb ext 5 10 5 46 76 8 Kb 10 18 10 90 38 4 Kb 20 384 21 814 Overcurrent Transient Detection The block also stores the 128 sampled values for each input in the Overcurrent Data Table There they are arranged as 8 consecutive cycles of 16 points each Data in the Overcurrent Data Table is updated continuously until an overcurrent transient is detected If the current on any of the four current inputs exceeds a configured transient level for two successive samples the block captures and stores three cycles up to and including the event plus the five succeeding cycles of data It then freezes the contents of the Overcurrent Data Table This traps the digitized overcurrent waveform along with the three cycles before and the five cycles after it 1 A a43594 35 CURRENT TRANSIENT ABOVE CONFIGURED LEVEL FOR TWO SUCCESSIVE SAMPLES NEXT 5 CYCLES WILL BE SAMPLED 30 D i CONFIGURED OVERCURRENT BO pene Se TRANSIENT LEVEL THESE TWO CYCLES OCCURRED 20 BEFORE THE OVERCURRENT TRANSIENT k CYCLE2 _ CYCLE 3 _ 4 CYCLE 4 When a current transient occurs the block sets a bit in the status data it sends to the PLC or computer Transient data can be read
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