026-1726 Rev 0 22-MAR-2011 Energy Meter Installation and Operation Manual
Retail Solutions 3240 Town Point Drive NW Suite 100 Kennesaw, GA 30144 Phone: 770-425-2724 Fax: 770-425-9319 ALL RIGHTS RESERVED. The information contained in this manual has been carefully checked and is believed to be accurate. However, Computer Process Controls, Inc. assumes no responsibility for any inaccuracies that may be contained herein. In no event will Computer Process Controls, Inc.
TABLE OF CONTENTS 1 INTRODUCTION.......................................................................................................................................................... 1 1.1. SPECIFICATIONS ............................................................................................................................................................ 2 1.2. NOTICE ....................................................................................................................................
1 Introduction The Energy Meter (P/N 250-5000) provides a solution for measuring energy data with a single device. Inputs include Control Power, CT, and 3-phase voltage. The Energy Meter supports multiple output options, including solid state relay contacts, Modbus, and pulse. The LCD screen on the faceplate allows instant output viewing. The meter is housed in a plastic enclosure suitable for installation on T35 DIN rail according to EN50022.
1.1. Specifications Measurement Accuracy: Real Energy Pulse N.O., static output Contacts (all models) AND Reactive Energy Pulse Contacts (30VAC/DC, 100mA max. @ 25°C, derate 0.56mA per °C above 25°C) RS-485 Port 2-wire, 1200 to 38400 baud, Modbus RTU Real Power and Energy IEC 62053-22 Class 0.5S, ANSI C12.20 0.5% Reactive Power and Energy IEC 62053-23 Class 2, 2% Current 0.4% (+0.015% per °C deviation from 25°C) from 5% to 100% of range; 0.8% (+0.
1.2. Notice • This product is not intended for life or safety applications. • Do not install this product in hazardous or classified locations. 2 Overview 2.1. Dimensions • The installer is responsible for conformance to all applicable codes. • Mount this product inside a suitable fire and electrical enclosure. 1.2.1.
Figure 2-3 - Bottom View (Screw Mount Option) 2.2.
3 Installation WARNING! Disconnect power prior to installation. Any covers that may be displaced during the installation must be reinstalled before powering the unit. 3.1.2. Screw Mounting 1. Attach the mounting clips to the underside of the Energy Meter by sliding them into the slots from the outside. The screw hole must be exposed on the outside of the housing. 2. Use three #8 screws (not supplied) to mount the Energy Meter to the inside of the enclosure.
3.2. Supported System Types The Energy Meter Series has a number of different possible system wiring configurations (see Section 4, Wiring). To configure the meter, set the System Type via the User Interface or Modbus register 130 (if so equipped). The System Type tells the meter which of its current and voltage inputs are valid, which are to be ignored, and if neutral is connected.
4 Wiring 4.1. Wiring Diagrams To avoid distortion, use parallel wires for control power and voltage inputs. The following symbols are used in the wiring diagrams on the following pages. Symbol Description Voltage Disconnect Switch Fuse (installer is responsible for ensuring compliance with local requirements. No fuses are included with the Energy Meter.
Figure 4-3 - 1-Phase Direct Voltage Connection 2 CT Figure 4-5 - 3-Phase 4-Wire Wye Direct Voltage Input Connection 3 CT Figure 4-4 - 3-Phase 3-Wire 3 CT no PT Figure 4-6 - 3-Phase 4-Wire Wye Connection 3 CT 3 PT WARNING! CTs are referenced to the meter’s neutral (N).
4.2. Control Power Figure 4-10 - Control Power Transformer (CPT) Connection 4.2.1. Figure 4-7 - Direct Connect Control Power (Phase to Phase) Fuse Recommendations Keep the fuses close to the power source (obey local and national code requirements). For selecting fuses and circuit breakers, use the following criteria: • Current interrupt capacity should be selected based on the installation category and fault current capability. • Over-current protection should be selected with a time delay.
4.3. Wiring Connection to E2 5 Display Screen Diagram 5.1. LCD Screen E2 Power Interface Board (PIB) RS485 MODBUS CONNECTORS WHITE +485 SHIELD 0V BLACK -485 ECT MODBUS CONNECTOR on the Energy Meter K AC BL SHIELD WHIT E +485 0V -485 Figure 5-1 - Energy Meter Screen + - S REVERSE POLARITY Energy Meter +Data to the E2 RS485 Energy Meter -Data to the E2 RS485 + 5.2.
6 Network Setup and Commissioning E2 PIB COM PORT ASSOCIATIONS COM3 Plug-In Modem Card Set Up Network Ports Before communicating to an Energy Meter, the port on the E2 that has the cable connected to the Energy Meter must be configured to use the Energy Meter. 1. Log in to the E2 with Level 4 access. E2 Enclosure (Right Side) E2 Modem/Expansion COM Card Mounted Above PIB RS232 6.1. 2. Press followed by - General Controller Info. COM6 3.
6.2. Adding an Energy Meter To enable communications between E2 and the Energy Meter units, the devices must be added and addressed in E2. 1. Log in to the E2 with Level 4 access. 2. Press - Connected I/O Boards and Controllers. Figure 6-4 - Network Summary Screen 6. By default, each Energy Meter’s board number in the network list is indicated by a - (dash). To set the address and begin communication, press to Commission.
controller that has the latest version of firmware. not being used. Figure 6-6 - List of MODBUS Devices 8. Repeat Steps 5 and 6 until each Energy Meter device has been commissioned. 9. When finished, press to return to the Network Setup menu, then press - Network Summary (Figure 6-4). Locate the Energy Meters you set up, and look at each device’s status in the Status field. You will see one of the following messages: • Online - The Energy Meter is communicating normally.
signal ground). • Wire the RS-485 bus as a daisy chain from device to device, without any stubs. Use a 150 ohm termination resistor at the end of the bus between the Energy Meter’s + and - terminals (not included, or use Retail Solutions MODBUS termination block P/N 535-2711). • Shield is not internally connected to Earth Ground. • Connect Shield to Earth Ground somewhere on the RS-485 bus. • When tightening terminals, ensure that the correct torque is applied: 0.37-0.44 ft·lb (0.5-0.6 N·m).
7 Quick Setup Instructions Transformer step down ratio. 1. Press the + or - button repeatedly until SETUP screen appears. 3. to the PASWD screen. through the digits. Use the + or - buttons to select the password (the default is 00000). Exit the screen to the right. 4. Use the + or - buttons to select the parameter to configure ( - works best). 5. If the unit has an RS-485 interface, the first Setup screen is S COM (set communications). a. to the ADDR screen and through the address digits.
8 Solid-State Pulse Output The Energy Meter has one normally open (NO) KZ Form A output and one normally closed (NC) KY solid-state output. One is dedicated to energy (Wh), and the other to Alarm. The Energy Meter also provides an additional NO reactive energy (VARh) contact. See the Setup section for configuration information. “ConF” in the ALARM -> PULSE screen, and enable Energy pulse output configuration error bit in the Modbus Diagnostic Alert Bitmap (if equipped).
9 UI Menu Abbreviations Main Menu IEC IEEE Description D D Demand MAX M Maximum Demand P W Present Real Power Q VAR Present Reactive Power S VA Present Apparent Power A A Amps UAB, UBC, UAC VAB, VBC, VAC Voltage Line to Line V VLN Voltage Line to Neutral PF PF Power Factor U VLL Voltage Line to Line HZ HZ Frequency KSh KVAh Accumulated Apparent Energy KQh KVARh Accumulated Reactive Energy KPh KWh Accumulated Real Energy PLOSS PLOSS Phase Loss LOWPF LOWPF Lo
10 User Interface for Data Configuration 18 • Energy Meter 026-1726 Rev 0 22-MAR-2011
11 Alert/Reset Information MultiFlex I/O Board Pulse Limits - Standalone Version Only Alert/Reset Information • 19
12 User Interface for Setup 20 • Energy Meter 026-1726 Rev 0 22-MAR-2011
MultiFlex I/O Board Pulse Limits - Standalone Version Only User Interface for Setup • 21
13 Energy Meter Standard MODBUS Default Settings Setting Value Modbus Register Setup Password 00000 Reset Password 00000 – System Type 40 (3 + N) Wye 130 CT Primary Ratio (if CTs are not included) 100A 131 CT Secondary Ratio 1V 132 PT Ratio 1:1 (none) 133 System Voltage 600 V LL 134 Setting Value Log Register Pointer 8 155 (Month/Day) Modbus Register 176 Log Register Pointer 9 156 (Year/Hour) 177 Log Register Pointer 10 157 (Minutes/Seconds) 178 Table 13-1 -MODBUS Default Set
14 Troubleshooting Problem The maintenance wrench icon appears in the Energy Meter display. Cause Solution There is a problem with the inputs See the Alert sub-menu or the Diagnostic Alert Modbus Register to the Energy Meter. 146 The display is blank after apply- The meter is not receiving ing control power to the meter. adequate power. Verify that the meter control power is receiving the required voltage. Verify that the heart icon is blinking. Check the fuse. The data displayed is inaccurate.
15 Appendix of Compatible Current Transducers Split Core Current Transducers Part Number Inside Diameter Amperage 251-7010 0.75" 100 AMP 251-7020 1.25" 200 AMP 251-7021 0.75" 200 AMP 251-7030 1.25" 300 AMP 251-7040 2.00" 400 AMP 251-7080 2.00" 800 AMP 251-7120 2.00" 1200 AMP 251-1000 0.75" 5 AMP 251-1001 0.75" 15 AMP 251-1002 0.75" 30 AMP 251-1003 0.75" 50 AMP 251-1004 1.25" 70 AMP 251-1005 1.25" 100 AMP 251-1006 1.25" 150 AMP 251-1007 1.
