GE EPM 3000P instruction manual Communication Installation, RS-232C, RS-485

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CHAPTER 3

COMMUNICATION INSTALLATION

3.1RS-232C

All EPM3000P and EPM300P-F instruments can be equipped with: the EIA RS-232C or the EIA RS-485.

RS-232C communication links a single instrument with a computer or device such as an RTU or PLC. Its capability is up to 100 feet. A standard 9-pin female serial port connector mounts on the instrument for direct connection to a computer with a 9-pin cable.

NOTE: ONLY THREE PINS ARE USED IN RS-232C. (See Figure 3.1).

 

 

 

 

BACK VIEW

RS-232 COMMUNICATION CONNECTION

 

 

 

 

 

 

8

9

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12

13

 

 

 

 

7

 

 

 

 

 

CONNECTION FOR DB-9 FEMALE

 

 

 

 

20

 

 

 

 

 

 

 

 

 

PIN 2 - RECEIVE OF THE HOST/COMPUTER

6

 

 

 

 

21

5

COMMUNICATION

22

PIN 3 - TRANSMIT OF THE HOST/COMPUTER

PIN 5 - GROUND OF THE HOST/COMPUTER

4

 

CONVERTER

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Model

 

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3

 

 

5

4 3 2 1

 

SF-232DB3

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2

 

 

 

 

 

 

 

DETAIL OF DB-9

 

 

 

 

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9 8

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6

1

 

 

 

 

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28

 

 

 

 

LAPTOP

DB-9 CONNECTOR

A DIRECT PIN-TO-PIN CABLE CAN BE USED.

NO NULL MODEM IS REQUIRED.

Figure 3.1 RS-232C Communication Connection Installation

NOTE: TO AVOID GROUND LOOPS, THE NEUTRAL AND SAFETY GROUND (PIN 3) SHOULD BE CONNECTED TOGETHER AT ONLY ONE POINT.

3.2RS-485

NOTE: THIS SECTION APPLIES ONLY IF A COMMUNICATION OPTION WAS ORDERED.

Each EPM3000P has an unique address up to four digits long. This allows the user to communicate with up to 10,000 instruments. Standard baud rates are available up to 4800 baud. To select the proper baud rate, apply the following rules:

The unit operates up to 4800. For a smaller number of instruments over a long distance, use a lower baud. Optimal recommended baud rate is 1200 baud if noisy conditions exist.

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GE Industrial Systems

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Contents EPM 3000P All Rights Reserved Customer Service and Support Installation & O P E R a T I O N O G R a M M I N G Mechanical Installation Installation & OperationPort Mechanical InstallationCT Size VA Maximum Distance CT to EPM3000P Electrical InstallationElectrical Installation Listing of Connection DiagramsWith 2 CTs and 2 PTs With Direct Voltage and CTsWith 3 CTs and 2 PTs III. Open Delta PT ConnectionThree Phase System Wye System with PTs Back View DUAL-PHASECOM Communication Installation RS-232CRS-485 Communication Installation RS-485 Hookup Diagram 2 wire Half DuplexRS-485 Hookup Diagram 2 wire Half Duplex Detail View Volts Amps EPM3000P Overview‰ Unprotected Reset ‰ Protected ResetEPM3000P Overview Voltage Phase Imbalance Limit Voltage Phase ReversalI000 Access OperationÖTo Print the Programming DATA, follow these steps 222300.0 GROUPS, Functions, and Switch Packs General Procedure OverviewStandard Numeric Data Entry General Procedure OverviewPassword Used for555 Entering the Programming ModeFunction Number Programming Group 0 Global Meter Setup020 Global Meter SetupI20 Pack Switch Feature Segment Position 03.0 Computer Controlled Dedicated AlarmS E T I25 Programming Group Input Voltage PT Ratio Full ScaleInput Current CT Type Full Scale Programming Group I50Volts 4/1 PT To change the CALIBRATION, follow these steps Programming Group 2 Meter Calibration250 10.1 Programming Group 4 SET Limits & RelaysSet Limits & Relays LM1 LED LM2 LED ABOVE/BELOW Relay ValueLM1 LED LM2 LED ABOVE/ below Relay Level ÖTo program Limits or RELAYS, follow these steps Set Limits and RelaysSee to Exit Percent Phase Imbalance Phase ReversalÖTo change the Phase Reversal settings, follow these steps Phase Reversal & Phase Imbalance Set Limits/RelaysI0.0 If YOU are Located AT Exiting the Programming Mode

EPM 3000P specifications

The GE EPM 3000P is a cutting-edge power monitoring and management device designed to enhance the reliability and efficiency of electrical systems. This innovative product combines advanced technology with user-friendly features to meet the growing demands of modern industrial and commercial environments.

One of the standout features of the EPM 3000P is its ability to provide real-time monitoring of key electrical parameters. This includes voltage, current, power, energy consumption, and power factor, all displayed on a high-resolution graphical LCD screen. The device supports a wide range of communication protocols, allowing for seamless integration into existing systems. It is compatible with Modbus, Ethernet/IP, and DNP3, enabling users to communicate and collect data from remote locations efficiently.

Another significant aspect of the EPM 3000P is its robust data logging capabilities. The device can store extensive historical data, which can be easily accessed for analysis and reporting. This feature is essential for identifying trends, diagnosing issues, and ensuring compliance with energy regulations. Customizable alarms and notifications further enhance its functionality, alerting users to potential issues before they develop into costly problems.

The EPM 3000P also emphasizes safety and protection for electrical systems. It is equipped with advanced protection features, including overvoltage, undervoltage, overcurrent, and phase loss detection. This ensures that equipment is safeguarded against electrical faults, reducing the risk of damage and downtime.

In terms of design, the EPM 3000P is both compact and rugged, making it suitable for installation in various environments. Its modular design allows for easy integration with other devices and systems, promoting scalability and future growth. The device is also compliant with international safety standards, ensuring reliability and peace of mind for users.

In conclusion, the GE EPM 3000P is a powerful tool for power management, offering users unparalleled monitoring, protection, and data analysis capabilities. With its advanced features, robust communication options, and user-friendly interface, it is positioned as an ideal solution for organizations looking to optimize their energy usage and enhance the resilience of their electrical systems. This makes it a preferred choice for industries aiming to improve operational efficiency and achieve sustainable energy practices.