Debugging Communication Problems | GE EPM 5350, EPM 5200, EPM 5300

CHAPTER 4: COMMUNICATION INSTALLATION

Debugging Communication Problems

If you experience NO communication, check these conditions:

•Is the Baud Rate set correctly (see Part II: Programming Section)?

•Is the Meter Address set correctly (see Part II: Programming Section)?

•Is the correct protocol set? Modbus, DNP 3.0?

•Set the meter for the appropriate protocol for the internal software.

GE Multilin

EPM 5000 series Advanced Power Meters

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GE EPM 5350, EPM 5200, EPM 5300 instruction manual Debugging Communication Problems

Contents

EPM 5200, 5300 Digital Multifunction Power MonitorsPage Table of Contents REFERENCE………………81 SET LIMITS/RELAYSMode Single Phase System Chapter AC Power Measurement Relationship between apparent, real Reactive power Three-Phase System Poly Phase System 1 Delta, 2 Wye Consumption, Demand and Poor Power Factor Total Harmonic Distortion THD Waveform and HarmonicsSinusoidal Waveform a sin ω ⋅ t Diagram 2.1 Standard installation Chapter Mechanical Installation Port Connecting the Current Circuit Chapter Electrical InstallationCT Connection Helpful Debugging Tools Connection to the Main Power Supply Connecting the Voltage CircuitElectrical Connection Installation Control Power Option Suffix Current List of Connection Diagrams 2L1 Three Phase Four-Wire Wye with CT and PTs IV. Three-Phase Four-Wire Wye with Direct Voltage and CTsLine Back View Load EPM 5300P-S VI. Single Phase with CT and PT Connection VIII. Three-Phase Four-Wire WYE with 2.5 Element VII. Dual-Phase with CTs and PTs Relays & 1 KYZ Pulse Output -NL Option Relay, Protection and Pulse OutputEPM 5300P Relay Overview Standard Rate Table for Watts Decimal Point Placement Change in Level KW/MWKYZ Pulse Outputs NL2 Option Voltage KYZ Relay Connection for -NL2 Option 9999.0 Units W Hour 999.9 99.99 RS-232C Chapter Communication InstallationRS-485 Connection for DB-9 Female RS-485 Hookup Diagram 2 wire Half Duplex RS-485 Hookup Diagram 2 wire Half Duplex Closed Loop RS-485 Hookup Diagram 2 wire Half Duplex Detail View RS-485 Hookup Diagram 4 wire Full Duplex Bottom View Shown RS-485 Hookup Diagram 4 wire Full Duplex Detail View Computer Network of Instruments and Long Distance Communication Programming the Modem Modem Connected to Computer Originate Modem Debugging Communication Problems Communication Installation Chapter Overview Power A, B, C Accessing %THD Functions Accessing the Power FunctionsAccessing Voltage and Current Phases Step Viewing Individual Phase Indication for Power Functions Resetting Values Protected Reset Unprotected Reset Accessing the LM1/LM2 Set Limits Resetting Hour Readings Phase Reversal Phase Imbalance Voltage Phase Reversal and ImbalanceThis display Press and hold down Indicates a Voltage Appears, confirming a successful print command Access ModesPrint Operating Data Press and hold Press Amps until a Appears Print Programming Data Accessing Firmware Version/LED TestStep Press and hold PHASE/NEXT Press Amps until 4 appears Step Switch Packs General ProcedureChapter Programming Overview Groups Functions Packs Standard Numeric Data Entry Programming Mode Data Entry EPM 5200P Chapter 5300P 5200P 5350P Feature 5300P 5200P 5350PEPM 5300P vs. EPM 5200P vs. EPM 5350P Checksum Error-Protective Self-Checking Algorithms Chapter Entering Programming ModePassword Entry Entering Programming Mode Entering Programming Mode Group 0, Function 0-The Integration Interval Chapter Programming Group 0 Global Meter SetupFunction Function Group 0, Function 1-The Meter Address Group 0, Function 2-BAUD Rate Group Function Pack Group 0, Function 3-System Configuration Down +PF Pack Switch Feature Segment Position Modbus Plus Capability Open Delta System Installation ProgrammingPrinting Option Disabling Prevents To change the System Configuration Switch Settings Group 0, Function 3-Programming Procedure Switch Description Relay ModeSwitch C Description Definitions 04.P Controls Relay 05.P Controls Relay 2 and 3 if NL4 Programming StepsGroup 0-FUNCTION Number Description To change the Relay Mode to either Fail-safe or Reset Group and Function Number Description To program Relay To change Time Delays Parameter Description Group 0, Function 6-KYZ Parameter Selection 06P Selection KYZ Pulse KYZ Pulse ValueValue PER PER Watt Hour FSW=9.999 Situation 4 FSW=9.999 Situation 3 FSW=99.99 Standard Factory SET-UP is THREE-PHASE FOUR-WIRE Group 0, Function 7-Number of Phases Group and Function Number Formulas Voltage Full Scale To change the Full Scale Settings Press Volts to move decimal point Press Amps to store CT T YPE Full Scale Group 1, Function 1-Amperage Full Scale Step Press Amps to begin Data Entry Sequence Example 2 480/120 PT, 1000/5 CT FSV=480 FSA=1000 a FSW one phase=480 V ⋅ 1000 aExample 3 14.4 KV/120, 1000/5 CT FSV=14.40 KV FSA=1000 a To change the scale factor setting for wattage Programming Group Calibration Requirements Chapter Programming Group 2-METER CalibrationHigh End Calibration-Volts AN, BN, CN High End Calibration-Amps A, B, C To change the calibration high end-Functions 0 Voltage Range Input Source Group 2 Value For Amps Low End Function Press MAX/MIN/LIMITS to end calibration procedure Chapter Groups 4, 5 and 6-SET Limits and Relays Time Delays & Relay ModeExample of LM1/LM2 SET Limits Trip Relay Group 4 Programming Format for Limit Condition Group 4, Functions 0-3-LM1/LM2 Set Limits Group 5, Functions 0-7-LM1/LM2 Set Limits Digit Up Digit Down 0120 There are 3 Switches to SET with Limits Programming Group 6, LM1/LM2 Set Limits LM1 LM2 Switch Value LED ABOVE/BELOW Relay LM1 LED LM2 LED Switch Level ABOVE/BELOW Relay Limits or Relays Programming ProcedureDigit Up Digit Down 012.0 Digit Down Digit Up 009.0 Follow this step for Disabling Limits Press Amps once to Disable the Limit See to Exit ∃TRIP Relay 1 %TRIP Relay 2 &LEVEL ∋ENABLE/DISABLE Phase Reversal and Phase Imbalance Voltage Phase Reversal Detection Group 7, Function 0-Voltage Phase Reversal DetectionVoltage Phase Imbalance To change the phase reversal setting To change the percentage voltage phase imbalance Group 7, Function 1-Percentage Voltage Phase Imbalance See to Exit Chapter Exiting Programming Mode Exiting Programming Mode Chapter Programming Quick Reference Entering the Programming ModeData Entry Sequence Programming Groups Reserved Switches Group 0-Global Meter Setup Group 2 Calibration Group 1 Full Scale SetupGroup 3 Calibration Ratios Group 4 Volt/Current Limits Group 6 THD Limits Group 5 Power Function LimitsGroup 7 Imbalance/Reversal Limits Group 8 DC output Calibration KEY Designations Programming Quick Reference Ethernet Module Chapter Ethernet Option Description LED Functions Ethernet Option Setup Setting the IP Address Default IP AddressNetwork Port Login AutoIP Telnet to Port Network ConfigurationARP on Windows Baud Rate Configuration Parameters GE Multilin