DENT Instruments PowerScout 18 User Manual Download Page 6 | Manualshive

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6

Connections To The PowerScout



The PowerScout

™

has a connector for four voltage wire leads for making connections to voltage sources (L1, L2,

L3, Neutral). The PowerScout

™

18 also has connectors for up to 18 current transducers (CTs) (PowerScout

™

3

has 3 CTs). The PowerScout

™

also has a three wire connector for the RS-485 Modbus link.

CAUTION:

THE POWERSCOUT

™

SHOULD ONLY BE WIRED BY QUALIFIED PERSONNEL. HAZARDOUS VOLTAGES EXIST.

ATTENTION:

LE POWERSCOUT ™ NE DOIT ÊTRE BRANCHÉ QUE PAR UN PERSONNEL QUALIFIÉ. TENSIONS DANGEREUSES

SONT PRÉSENTES.

DANGER!

THE UNENCLOSED POWERSCOUT BOARD REQUIRES EXTRA CAUTION WHEN CONNECTING. LIFE THREATENING

VOLTAGES EXCEEDING 600 VOLTS MAY EXIST ON THE BOARD. THE RISK OF SERIOUS INJURY OR DEATH SHOULD NOT BE
UNDERESTIMATED.

DANGER!

LA PLAQUETTE DE CIRCUITS IMPRIMÉS SANS COUVERCLE EXIGE UN REDOUBLEMENT DE PRUDENCE QUAND ON

FAIT LA CONNEXION. LES TENSIONS DÉPASSANT 600 VOLTS PEUVENT EXISTER SUR LA PLAQUETTE ET PEUVENT METTRE
LA VIE EN DANGER. LE RISQUE DE BLESSURES GRAVES OU DE MORT NE DOIT PAS ÊTRE SOUS-ESTIMÉ.

Connecting the PowerScout

™

3

Shop for Power Metering products online at:

1.877.766.5412

www.

PowerMeterStore

.ca

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Summary of Contents for PowerScout 18

Page 1: ...October 25 2010 2008 2010 DENT Instruments Inc DENT Instruments 64 NW Franklin Avenue Bend Oregon 97701 2906 USA Phone 541 388 4774 Fax 541 385 9333 www DENTinstruments com Shop for Power Metering products online at 1 877 766 5412 www PowerMeterStore ca ...

Page 2: ...eads to the different phases Use proper safety equipment gloves and protective clothing as required for the voltages monitored Denotes high voltage risk of electric shock Life threatening voltages may be present Qualified personnel only DO NOT EXCEED 600V This meter is equipped to monitor loads up to 600V Exceeding this voltage will cause damage to the meter and danger to the user Always use a Pot...

Page 3: ...s équipements de sécurité gants et des vêtements de protection qui sont nécessaires pour les tensions surveillées Indique haute tension Risque de choc électrique Hautes tensions peuvent être présentes qui mettent la vie en danger Personnel qualifié uniquement NE PAS DEPASSER 600V Ce compteur peut contrôler les charges jusqu à 600V Le dépassement de cette tension peut causer des dommages à l appare...

Page 4: ...rate remote terminal unit RTU Data Logger or Building Management and Control System is usually connected to the PowerScout to provide for data recording and trend logging and any human interface or display Up to 41 PowerScout 18 meters 249 PowerScout 3 meters may be connected to a single RTU for monitoring and recording power usage at multiple locations within a single site The PowerScout 18 PS18 ...

Page 5: ...nt has 1 LED to indicate communication and 3 LEDs for correct phasing Green when voltage and current on the on the same phase Red when incorrectly wired Patent pending Communication Direct Modbus over RS 485 Modbus Framing RTU binary Communication Rate 9600 baud Data Bits 8 Parity None Stop Bit 1 Data Formats Modbus Protocol Power From L1 Phase to L2 Phase PS 18 5 Watts typ 600VAC 2 5W typ 80VAC n...

Page 6: ... UN PERSONNEL QUALIFIÉ TENSIONS DANGEREUSES SONT PRÉSENTES DANGER THE UNENCLOSED POWERSCOUT BOARD REQUIRES EXTRA CAUTION WHEN CONNECTING LIFE THREATENING VOLTAGES EXCEEDING 600 VOLTS MAY EXIST ON THE BOARD THE RISK OF SERIOUS INJURY OR DEATH SHOULD NOT BE UNDERESTIMATED DANGER LA PLAQUETTE DE CIRCUITS IMPRIMÉS SANS COUVERCLE EXIGE UN REDOUBLEMENT DE PRUDENCE QUAND ON FAIT LA CONNEXION LES TENSIONS...

Page 7: ...7 PowerScout 18 Layout and Watt Transducer Naming Convention Shop for Power Metering products online at 1 877 766 5412 www PowerMeterStore ca ...

Page 8: ...Modbus address desired These switches on both the PowerScout 3 and PowerScout 18 set the address for metering element A Metering elements B through F will always have a Modbus address that is one higher than the element before For example if the rotary address switches are set to 01 then metering element A register values will be accessed at Modbus address 01 metering element B registers will be a...

Page 9: ...ge and the L3 CT on the L3 voltage Wiring of the Voltage Input Last connect 14 AWG THHN or equivalent wires to the PowerScout CAT III voltage terminals as shown in the diagram above after a building installed dedicated circuit disconnect breaker while being as close as possible to it following the local electrical codes Mark the breaker as the disconnect for the PowerScout Note that the PowerScout...

Page 10: ...he PhaseChek LEDs are red then there is a phasing connection error If two LEDs are red and one is green switch the positions of the two CTs that are red That should make all three LEDs green If all three PhaseChek LEDs are red probably the CTs are connected in the correct order but off by one position For example the L1 CT is on the L2 phase the L2 CT is on the L3 phase and the L3 CT is on the L1 ...

Page 11: ...ead Holding Register Command 03 each item below is 8 bits is as follows Meter Address Command 03h FIRST MSB FIRST LSB Number to read MSB Number to Read LSB CRC LSB CRC MSB Meter Address which meter to read FIRST First point to read Number to read Number of points to read Write Preset Single Register Command 06 each item below is 8 bits is as follows Meter Address Command 06h REG MSB LEG LSB DATA M...

Page 12: ...1 44012 System Total Apparent Energy MSW kVAh kVA System 4012 44013 System Total Apparent Power kVA Displacement PF System 4013 44014 System Total Power Factor PF Apparent PF System 4014 44015 System Total Power Factor PF Amps System Avg 4015 44016 Total current in all phases Volts Line to Line Avg 4016 44017 Voltage Line to line Volts Average Volts Line to Neutral Avg 4017 44018 Voltage Line to n...

Page 13: ... was reset LSW Time Since Reset HSW 4062 44063 Seconds since KWH register was reset MSW Volts Scalar not implemented 4064 44065 For use with step down transformer Amps Scalar not implemented 4065 44066 For use with primary CTs Firmware Major Revision 4068 44069 Firmware Minor Revision 4069 44070 CT Value x2 4300 44301 In Amps CT value x2 Data Scalar 4301 44302 See Table 2 Demand Window Size 4302 4...

Page 14: ...em kW is 3465 X 0 1 346 5 kW A raw value of Apparent Power Factor from register 44015 might be 87 This would correspond to an actual power factor of 87 X 0 01 87 PF Additionally some values e g kilowatt hours may cover a dynamic range that is larger than 65535 and require two Modbus registers Any parameter in Table 1 that shows two registers identified by the terms MSW and LSW is such a wide rangi...

Page 15: ...values To reset the accumulating registers use the standard Modbus protocol to write a 0 to register 40001 Modbus Implementation Further Information More information about Modbus can be found from Modicon in the Modicon Modbus Protocol Reference Guide PI MBUS 300 Rev J The entire document may be found at http www modicon com techpubs toc7 html Shop for Power Metering products online at 1 877 766 5...

Page 16: ...ically If it does not browse to the CD and run the ViewPointSetup exe program If you have downloaded ViewPointSetup exe browse to its location and run it Step 2 After installing successfully the ViewPoint program will run and will display a Communications screen with two values to fill in The Modbus Base Address is a hexadecimal value that should match the switches on the PowerScout The field is p...

Page 17: ...the radio buttons and click Update to get the values for that element Set CT Values The Set CT Values tab let you change the type of current transformers connected Read Write Registers The Read Write Registers tab allows you to view or change the value of any PowerScout registers See the User s Manual for a list of the registers and their description This tab is provided for diagnostic and special...

Page 18: ...Found New Hardware Wizard will appear The first screen will ask Can Windows connect to Windows Update to search for software 4 Click No not this time then Next 5 Click Install from a list or specific location Advanced Next 6 In the New Hardware Wizard select Search for the best drivers in these locations and Search removable media floppy CD ROM 7 Click NEXT Shop for Power Metering products online ...

Page 19: ...er to install the serial port Repeat steps 4 8 10 When the Completing the Found New Hardware Wizard is displayed remove the CD from your computer and store 11 Verify that the dip switches on the back of the USB to RS 422 485 adapter are set to RS 422 485 Echo Off 2 Wire 2 Wire 12 The adapter is now ready for use Shop for Power Metering products online at 1 877 766 5412 www PowerMeterStore ca ...

Page 20: ... 103 67 146 92 189 BD 232 E8 18 12 61 3D 104 68 147 93 190 BE 233 E9 19 13 62 3E 105 69 148 94 191 BF 234 EA 20 14 63 3F 106 6A 149 95 192 C0 235 EB 21 15 64 40 107 6B 150 96 193 C1 236 EC 22 16 65 41 108 6C 151 97 194 C2 237 ED 23 17 66 42 109 6D 152 98 195 C3 238 EE 24 18 67 43 110 6E 153 99 196 C4 239 EF 25 19 68 44 111 6F 154 9A 197 C5 240 F0 26 1A 69 45 112 70 155 9B 198 C6 241 F1 27 1B 70 46...

Page 21: ...oltage Volts Multiplier Required 40009 Sum of Line Currents Amps X1 Multiplier Required 40010 L1 Phase True Power kW Multiplier Required 40011 L2 Phase True Power kW Multiplier Required 40012 L3 Phase True Power kW Multiplier Required 40013 L1 Phase Apparent Power Factor aPF Multiplier Required 40014 L2 Phase Apparent Power Factor aPF Multiplier Required 40015 L3 Phase Apparent Power Factor aPF Mu...

Page 22: ...exp 5 3 0518exp 5 3 0518exp 5 40016 VOLTS L1 L2 0 03125 0 03125 0 03125 0 03125 0 03125 40017 VOLTS L2 L3 0 03125 0 03125 0 03125 0 03125 0 03125 40018 VOLTS L3 L1 0 03125 0 03125 0 03125 0 03125 0 03125 40019 VOLTS L1 N 0 015625 0 015625 0 015625 0 015625 0 015625 40020 VOLTS L2 N 0 015625 0 015625 0 015625 0 015625 0 015625 40021 VOLTS L3 N 0 015625 0 015625 0 015625 0 015625 0 015625 40022 AMPS...

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