RS-485 Hookup Diagram 2 wire Half Duplex Closed Loop | GE EPM 5350

CHAPTER 4: COMMUNICATION INSTALLATION

RS-485

RS-485 Hookup Diagram (2 wire) Half Duplex (Closed Loop)

5300P Instruments (rear view)

RS-485

Communications Port

Model #SF485DB

RS-232

RS-485

UNICOM 2500

(Bottom View Shown)

FIGURE 4–3: 2-Wire RS-485 Communication Connection Installation half duplex (closed loop)

RS-485 Hookup Diagram (2 wire) Half Duplex: Detail View

RS-232

RS-485

RS-485

Communications

Port

Model#

SF485DB

G

R+

T+

R-

T-

RT

T-

R-

T+

R+

Gnd

RS-485

Communications

Port

Model#

SF485DB

G

R+

T+

R-

T-

UNICOM 2500

(Bottom View Shown)

(-) (+)

FIGURE 4–4: 2-Wire RS-485 Communication Connection Installation half duplex, detail view

EPM 5300 SERIES ADVANCED POWER METERS – INSTRUCTION MANUAL

4–23

Image 35

GE EPM 5350, EPM 5200, EPM 5300 instruction manual RS-485 Hookup Diagram 2 wire Half Duplex Closed Loop

Contents

GE Multilin EPM 5300 Power Metering System ChapterPage Table of Contents Programming 114 111112 113 Table of Contents TOC-IV Single Phase System EPM 5300 Series Meters AC Power Measurement = E I cosΘ Power W in a single phase system is Delta Wye Three-Phase System Poly Phase System 1 Delta, 2 Wye Consumption WH = W ⋅ T Consumption, Demand and Poor Power Factor Sin ω ⋅ t Waveform and Harmonics Mechanical Installation EPM 5300 Series Meters Mechanical Installation Installation with K-110 option for limited space conditions Port Mechanical Installation Feet EPM 5300 Series Meters Electrical InstallationConnecting the Current Circuit Helpful Debugging Tools Option 1 Isolating a CT Connection Reversal power readingCT Connection Connecting the Voltage Circuit Selecting the Voltage Fuses Externally fuse power supply with a slow-blow 3 Amp fuse Connection to the Main Power Supply List of Connection Diagrams Electrical Connection Installation Line Load Back View Line Back View B C Load Line B C Back View Load EPM 5300P-S Single Phase with CT and PT Connection Line This section applies only to the -NL or -NL2 Relay Option Relay, Protection and Pulse OutputEPM 5300P Relay Overview 2 2 Relays & 1 KYZ Pulse Output -NL Option Close-up of the Relay and KYZ pulse output on the rear panel Standard Rate Table for Watts Standard Rate Table for Watts KYZ Pulse Outputs NL2 Option KYZ Pulse Outputs NL2 Option RS-232C EPM 5300 Series Meters Communication Installation RS-485 RS-485 Hookup Diagram 2 wire Half Duplex RS-485 Hookup Diagram 2 wire Half Duplex Closed Loop Connecting 4-Wire bus to RS-485 Port RS-485 Hookup Diagram 4 wire Full Duplex RS-485 Hookup Diagram 4 wire Full Duplex Detail View You may want to use a Modem Manager RS485-RS232 Converter Network of Instruments and Long Distance Communication Modem Connected to the Device Remote Modem Modem Connected to Computer Originate ModemProgramming the Modem Debugging Communication Problems Tell modem to write the new settings to activate profile Total Kvah N/A on EPM 5200P EPM 5300 Series Meters OverviewFreq ± Total KWH EPM 5300P front panel with display and keypad Sequence Accessing the Power FunctionsPress Power to select the power category Press PHASE/NEXT for the desired phase Accessing Voltage and Current Phases Display blanks and indicates the %THD value momentarily Accessing %THD Functions Viewing Individual Phase Indication for Power Functions Phase Accessing Max/Min Values Repeat this procedure for each value you wish to reset Resetting ValuesUnprotected Reset To reset the min of Amps a Password is Protected Reset While the question Resetting Hour ReadingsPress Power once Time a password digit Appears To locate readings that exceeded Limit Accessing the LM1/LM2 Set LimitsTo view the setup of the LM1/LM2 set limits To access the set limit Press and hold down Voltage Phase Reversal and ImbalanceVoltage Phase Reversal This display indicates a Print Programming Data Access ModesEnter Programming Mode see Programming Section Print Operating Data Middle display Release both buttons Press and hold PHASE/NEXTPrint Operating Data Print Programming Data Step Press and hold PHASE/NEXT Accessing Firmware Version/LED Test EPM 5300 Series Meters Programming Overview General Procedure GROUPS, Functions, and Switch Packs Switch Packs Activates new data entry and enters or exits from Programming Mode Data EntryPoint from Function and Group level Position UP or Down Standard Numeric Data Entry EPM 5200P EPM 5300 Series Meters EPM 5200P VA/HR EPM 5300P vs EPM 5200P vs EPM 5350P Checksum Error-Protective Self-Checking Algorithms EPM 5300 Series Meters Entering Programming Mode Flashes momentarily in middle display Password EntryEntering Programming Mode If 3 is not already displayed Press Amps until 3 appears Number of Phases System Configuration see TableRelay 1 Set-up / Time delay Relay 2 Set-up / Time delay Press Amps to activate the Group Enter Group Level of Programming Mode see ChpLower display indicates current Interval setting Group 0, Function 0-The Integration Interval To change the Meter Address Programming Group 0 Global Meter Setup Group 0, Function 2 Baud Rate Group Function Pack Group 0, Function 3 System Configuration Open Delta System Installation Programming Programming Group 0 Global Meter Setup Printing Option Modbus Plus Capability To change the System Configuration Switch Settings Group 0, Function 3-Programming Procedure Relay Mode Enter in Group 0, Function 4, Pack ‘p’, Segments C and D Programming Steps LI M IT S Relay 2 On to Off Delay Time To change Time DelaysRelay 1 On to Off Delay Time Relay 1 Off to On Delay Time To program Relay 2 KYZ Parameters Group 0, Function 6-KYZ Parameter SelectionTo perform the KYZ Parameter Selection Enter Group Level of Programming Mode see Chp KYZ Pulse Value How to Use KYZ Pulse Value Table for MultiplicationApplies to -NL2 Option only Selection is Multiply by How to Use KYZ Pulse Value Table for Division To change the KYZ pulse value Press Amps to activate the Group Appears in upper display Group 0, Function 7-Number of PhasesEnter 2 for single phase/two wire Enter Group Level of Programming Mode. Chapter Formulas Group 1 Programming Format Typical Full Scale Settings for VoltsGroup 1, Function Voltage Full Scale Press Volts to move decimal point Press Amps to store Press MAX/MIN/LIMITS until 1. appears in upper displayPress Amps to activate Group Appears in upper display 10-76 Full Scale Settings for Amps To change the Full Scale Settings Press Amps to begin Data Entry Sequence Entering the Scale Factor Decimal Point Selection Step Scale Selection and Decimal Placement for Watts Display To change the scale factor setting for wattage Entering the Scale Factor Step 10-82 EPM 5300 Series Meters Programming Group 2 Meter Calibration High End Calibration-Amps A, B, C Calibration RequirementsGroup 2 Programming Format High End Calibration-Volts AN, BN, CN To change the calibration high end-Functions 0 Group 2, Functions Group 2, Functions For Amps Low End Function 11-87 11-88 LM1 and LM2 SET Limits EPM 5300 Series Meters Groups 4, 5 Set Limits Relays Trip Relay Time Delays & Relay Mode V O L T S A M P S Group 4 Functions 0-3-LM1/LM2 Set Limits Group 4 Example for Function Group 4 Programming Format for Limit ConditionGroup 4 Programming Format Group 4 Functions Group 5 Programming Format for Limit Condition There are 3 switches to set with limitsGroup 5 Functions 0-7-LM1/LM2 Set Limits Digit Up Digit Down 0120 Special CasesGroup 5 Functions Group 5 Example for Function Group 6 Functions Group 6 LM1/LM2 Set LimitsGroup 6 Programming Format For THD Limit Conditions Digit Up Digit Down 012.0 Group 6-Example for Function Group Limits or Relays Programming Procedure Limits or Relays Programming Procedure Press Amps once to Disable the Limit 12-100 Phase Imbalance Phase Reversal and Phase Imbalance Trip Relay Level ENABLE/DISABLE Voltage Phase Imbalance Group 7, Function 0-Voltage Phase Reversal DetectionTo change the phase reversal setting Voltage Phase Reversal Detection 13-104 To change the percentage voltage phase imbalance Group 7, Function 1-Percentage Voltage Phase Imbalance Middle and lower displays indicate new settings Exiting Programming Mode EPM 5300 Series Meters Exiting Programming Mode Press Amps to exit from Function Level to Group Level Meter returns to Function Level EPM 5300 Series Meters Programming Quick Reference Entering the Programming Mode Data Entry Sequence Programming Groups Group 0 Global Meter Setup Group 2 Calibration Group 1 Full Scale SetupOn to OFF delay time OFF to on delay time Volts Full Scale Currents Full Scale Power Full Scale Group 6 THD Limits Group 5 Power Function LimitsGroup 3 Calibration Ratios Group 4 Volt/Current Limits Detect Reversal Imbalance percent Limit Group 7 Imbalance/Reversal LimitsGroup 8 DC output Calibration ⎯ Scroll Packs 89L. Low-End Calibration 89H. High-End Calibration⎯ Scroll Groups ⎯ Scroll Functions 15-116 EPM 5300 Series Meters Ethernet Option Ethernet Module AutoIP Ethernet Option Setup Telnet to Port Network Port LoginNetwork Configuration ARP on Unix Configuration Parameters Baud Rate