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026-1726 Rev 0 22-MAR-2011
Energy Meter
Installation and
Operation Manual
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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. be liable for any direct, indirect, special, incidental, or consequential damages resulting
from any defect or omission in this manual, even if advised of the possibility of such damages. In the interest of continued
product development, Computer Process Controls, Inc. reserves the right to make improvements to this manual, and the
products described herein, at any time without notice or obligation.
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TABLE OF CONTENTS
1 INTRODUCTION.......................................................................................................................................................... 1
1.1. S
PECIFICATIONS ............................................................................................................................................................ 2
OTICE ......................................................................................................................................................................... 3
1.2. N
1.2.1. FCC Part 15 Information ..................................................................................................................................... 3
2 OVERVIEW................................................................................................................................................................... 3
2.1. D
IMENSIONS ................................................................................................................................................................. 3
RODUCT DIAGRAM ..................................................................................................................................................... 4
2.2. P
3 INSTALLATION........................................................................................................................................................... 5
3.1. T
YPES OF MOUNTING ................................................................................................................................................... 5
3.1.1. DIN Rail Mounting................................................................................................................................................ 5
3.1.2. Screw Mounting .................................................................................................................................................... 5
UPPORTED SYSTEM TYPES.......................................................................................................................................... 6
3.2. S
4 WIRING.......................................................................................................................................................................... 7
4.1. W
4.2. C
IRING DIAGRAMS ..................................................................................................................................................... 7
ONTROL POWER ......................................................................................................................................................... 9
4.2.1. Fuse Recommendations......................................................................................................................................... 9
4.3. W
IRING CONNECTION TO E2 ...................................................................................................................................... 10
5 DISPLAY SCREEN DIAGRAM................................................................................................................................ 10
5.1. LCD S
5.2. B
CREEN ............................................................................................................................................................. 10
UTTONS .................................................................................................................................................................... 10
6 NETWORK SETUP AND COMMISSIONING ...................................................................................................... 11
6.1. S
ET UP NETWORK PORTS ........................................................................................................................................... 11
DDING AN ENERGY METER ...................................................................................................................................... 12
6.2. A
6.3. RS-485 C
OMMUNICATIONS ........................................................................................................................................ 13
6.3.1. Daisy-chaining Devices to the Energy Meter ..................................................................................................... 13
7 QUICK SETUP INSTRUCTIONS ............................................................................................................................. 15
8 SOLID-STATE PULSE OUTPUT............................................................................................................................. 16
8.1. S
ET PULSE .................................................................................................................................................................. 16
ET PULSE ENERGY – WH/P ...................................................................................................................................... 16
8.2. S
8.3. M
8.4. M
INIMUM DURATION TIME – MILLISECONDS PER PULSE (MS/P).............................................................................. 16
ULTIFLEX I/O BOARD PULSE LIMITS - STANDALONE VERSION ONLY................................................................... 16
9 UI MENU ABBREVIATIONS ................................................................................................................................... 17
10 USER INTERFACE FOR DATA CONFIGURATION ...................................................................................... 18
11 ALERT/RESET INFORMATION........................................................................................................................... 19
12 USER INTERFACE FOR SETUP ......................................................................................................................... 20
13 ENERGY METER STANDARD MODBUS DEFAULT SETTINGS ................................................................. 22
14 TROUBLESHOOTING ............................................................................................................................................ 23
15 APPENDIX OF COMPATIBLE CURRENT TRANSDUCERS .......................................................................... 24
Table of Contents • v
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1Introduction
The Energy Meter (P/N 250-5000) provides a so-
lution 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. The Energy Meter can be mounted with
any orientation over the entire ambient temperature
range, either on a DIN rail or in a panel. The meter is
not sensitive to CT orientation to reduce installation
errors.
For use in a Pollution Degree 2 or better environment only. A Pollution Degree 2 environment must
control conductive pollution and the possibility of
condensation or high humidity. Consider the enclosure, the correct use of ventilation, thermal properties
of the equipment, and the relationship with the environment. Installation category: CAT II or CAT III.
WARNING! HAZARD OF ELECTRIC
SHOCK, EXPLOSION, OR ARC FLASH
• Follow safe electrical work practices. See NFPA
70E in the USA, or applicable local codes.
• This equipment must only be installed and ser-
viced by qualified electrical personnel.
• Read, understand and follow the instructions
before installing this product.
• Turn off all power supplying equipment before
working on or inside the equipment.
• Any covers that may be displaced during the
installation must be reinstalled before powering the
unit.
• Use a properly rated voltage sensing device to
confirm power is off.
DO NOT DEPEND ON THIS PRODUCT FOR
VOLTAGE INDICATION
Failure to follow these instructions will result in
death or serious injury.
Provide a disconnect device to disconnect the Energy Meter from the supply source. Place this device
in close proximity to the equipment and within easy
reach of the operator, and mark it as the disconnecting
device. The disconnecting device shall meet the relevant requirements of IEC 60947-1 and IEC 60947-3
and shall be suitable for the application. In the US and
Canada, disconnecting fuse holders can be used. Provide overcurrent protection and disconnecting device
for supply conductors with approved current limiting
devices suitable for protecting the wiring. If the
equipment is used in a manner not specified by the
manufacturer, the protection provided by the device
may be impaired.
Introduction • 1
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1.1. Specifications
Measurement Accuracy:
Real Power and
Energy
Reactive Power
and Energy
Current 0.4% (+0.015% per °C deviation from
Voltage 0.4% (+0.015% per °C deviation from
Sample Rate 2520 samples per second
Data Update Rate 1 sec
Type of Measurement
Input Voltage Characteristics:
Measured AC Voltage
Metering OverRange
Impedance 2.5 MΩ
Frequency Range 45 to 65 Hz
Input Current Characteristics:
CT Scaling Primary: Adjustable from 5A to 32,000A
Measurement Input
Range
Impedance 10.6kΩ (1/3 V mode) or 32.1kΩ (1 V mode)
Control Power:
AC 5VA max.; 90V min.
DC* 3W max.; UL and CE: 125 to 300VDC
Ride Through Time 100 msec at 120VAC
Output:
Alarm Contacts (all
models)
IEC 62053-22 Class 0.5S, ANSI C12.20
0.5%
IEC 62053-23 Class 2, 2%
25°C) from 5% to 100% of range;
0.8% (+0.015% per °C deviation from
25°C) from 1% to 5% of range
25°C) from 90V
to 600VAC
L-L
L-L
True RMS up to the 21st harmonic 60 Hz
One to three phase AC system
Minimum 90V
L-N
(156V
) for stated
L-L
accuracy;
UL Maximums: 600V
CE Maximums: 300V
L-L
L-N
(347V
(520V
L-N
L-L
)
)
+20%
/5 MΩ
L-N
L-L
0 to 0.333VAC or 0 to 1.0VAC (+20% overrange)
UL Maximums: 600V
CE Maximums: 300V
L-L
L-N
(347V
(520V
L-N
L-L
)
)
N.C., static output
(30VAC/DC, 100mA max. @ 25°C,
derate 0.56mA per °C above 25°C)
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
Mechanical Characteristics:
Weight 0.62 lb (0.28 kg)
IP Degree of Pro-
IP40 front display; IP20 Meter
tection (IEC
60529)
Display Character-
Back-lit blue LCD
istics
Terminal Block
Screw Torque
Terminal Block
0.37 ft-lb (0.5 N.m) nominal/0.44 ft-lb (0.6
N.m) max.
2
26 to 14 AWG (0.13 to 2.08 mm
)
Wire Size
Rail T35 (35mm) DIN Rail per EN50022
Environmental Conditions:
Operating Temper-
-30°C to 70°C (86°F to 158°F)
ature
Storage Tempera-
-40°C to 85°C (-40°F to 185°F)
ture
Humidity Range <95% RH (non-condensing)
Altitude of Opera-
3 km max.
tion
Metering Category:
US and Canada CAT III; for distribution systems up to
347 V
/600VAC
L-N
L-L
CE CAT III; for distribution systems up to
Dielectric With-
300 V
Per UL 508, EN61010
/480VAC
L-N
L-L
stand
Conducted and
Radiated Emissions
FCC part 15 Class B, EN55011/EN61000
Class B
(residential and light industrial)
Conducted and
EN61000 Class A (heavy industrial)
Radiated Immunity
Safety:
US and Canada
(cULus)
UL508 (open type device)/CSA 22.2 No.
14-05
Europe (CE) EN61010-1:2001
Table 1-1 - Energy Meter Specifications
2 • Energy Meter 026-1726 Rev 0 22-MAR-2011
Table 1-1 - Energy Meter Specifications
*External DC current limiting is required, see
Section 4.2.1., Fuse Recommendations.
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1.2. Notice
• This product is not intended for life or safety applications.
• Do not install this product in hazardous or classified
locations.
• The installer is responsible for conformance to all
applicable codes.
• Mount this product inside a suitable fire and electrical enclosure.
1.2.1. FCC Part 15 Information
NOTE: This equipment has been tested by the
manufacturer and found to comply with the
limits for a class B digital device, pursuant to
part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a
residential environment. This equipment generates, uses, and can radiate radio frequency energy and, if not
installed and used in accordance with the instruction
manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area may cause harmful interference in which case
the user will be required to correct the interference at
his own expense. Modifications to this product without
the express authorization of Retail Solutions nullify this
statement.
2Overview
2.1. Dimensions
Figure 2-1 - Energy Meter Dimensions
Notice Overview • 3
Figure 2-2 - Bottom View (DIN Mount Option)
Page 10
Figure 2-3 - Bottom View (Screw Mount Option)
2.2. Product Diagram
Figure 2-4 - Energy Meter Interface
Figure 2-5 - Four Output Options
4 • Energy Meter 026-1726 Rev 0 22-MAR-2011
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3 Installation
WARNING! Disconnect power prior to instal-
lation.
Any covers that may be displaced during the
installation must be reinstalled before powering the
unit.
Mount the Energy Meter in an appropriate electri-
cal enclosure near equipment to be monitored.
Exposure to VFD harmonics may cause permanent
damage to this device.
3.1. Types of Mounting
The Energy Meter can be mounted in two ways: on
standard 35 mm DIN rail or screw-mounted to the interior surface of the enclosure.
3.1.1. DIN Rail Mounting
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. See diagram of the underside of the Energy Meter (below).
1. Attach mounting clips to the underside of the Energy Meter by sliding them into the slots from the inside. The outside edge of the clip must be flush with
the outside edge of the Energy Meter.
2. Snap the clips onto the DIN rail. See diagram of the
underside of the Energy Meter (below).
Figure 3-1 - DIN Rail Mounting
3. To prevent horizontal shifting across the DIN rail,
use two AV02 end stop clips.
Figure 3-2 - Screw Mounting
Types of Mounting Installation • 5
Page 12
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. Setting the correct System Type prevents unwanted energy accumulation
on unused inputs, selects the formula to calculate the Theoretical Maximum System Power, and determines
which phase loss algorithm is to be used. The phase loss algorithm is configured as a percent of the Line-to-Line
System Voltage (except when in System Type 10) and also calculates the expected Line to Neutral voltages for
system types that have Neutral (12 & 40).
Values that are not valid in a particular System Type will display as “----” on the User Interface or as QNAN
in the Modbus registers.
CTs Voltage Connections System Type
Number
of wires
Single-Phase Wiring
2 1 A 2 A,N L-N 10 1L+1n AN 1
2 1 A 2 A,B L-L 11 2L AB 2
3 2 A,B 3 A,B,N L-L with N 12 2L+1n AB AN,BN AN-BN 3
Three-Phase Wiring
3 3 A,B,C 3 A,B,C Delta 31 3L AB, BC,
4 3 A,B,C 4 A,B,C,N Grounded
Table 3-1 - System Types
Qty ID Qty ID Type Modbus
Register
130
40 3L+1n AB, BC, CAAN, BN, CNAN-BN-CN
Wye
User Interface:
SETUP>S
SYS
VLL VLN Balance Diagram
CA
Phase Loss
Measurements
AB-BC-CA 4
&
AB-BC-CA
Wiring
Diagram
number
5, 6
6 • Energy Meter 026-1726 Rev 0 22-MAR-2011
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4 Wiring
To avoid distortion, use parallel wires for control
power and voltage inputs.
The following symbols are used in the wiring dia-
grams 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.)
Earth ground
Current Transducer
4.1. Wiring Diagrams
Figure 4-1 - 1-Phase Line-to-Neutral 2- Wire System 1 CT
Potential Transformer
Protection containing a voltage disconnect switch with a fuse or disconnect circuit breaker. The
protection device must be rated for
the available short-circuit current at
the connection point.
Table 4-1 -Diagram Symbols
WARNING! This product is designed only for
use with 1V or 0.33V current transformers
(CTs).
DO NOT USE CURRENT OUTPUT (e.g. 5A) CTs
ON THIS PRODUCT.
Failure to follow these instructions can result in
overheating and permanent equipment damage.
Figure 4-2 - 1-Phase Line-to-Line 2-Wire System 1 CT
Wiring Diagrams Wiring • 7
Page 14
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
WARNING! CTs are referenced to the meter’s
neutral (N).
8 • Energy Meter 026-1726 Rev 0 22-MAR-2011
Figure 4-6 - 3-Phase 4-Wire Wye Connection 3 CT 3 PT
Page 15
4.2. Control Power
Figure 4-10 - Control Power Transformer (CPT) Connection
4.2.1. Fuse Recommendations
Figure 4-7 - Direct Connect Control Power (Phase to Phase)
Figure 4-8 - Direct Connect Control Power (Phase to Neutral)
Keep the fuses close to the power source (obey lo-
cal 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.
• The voltage rating should be sufficient for the input
voltage applied.
• Provide overcurrent protection and disconnecting
devices appropriate for the wiring.
• The earth connection is required for electromagnetic
compatibility (EMC) and is not a protective earth
ground.
Figure 4-9 - Control Power Transformer (CPT) Connection
Control Power Wiring • 9
Page 16
4.3. Wiring Connection to E2
485 M
ODBU
S
NECT
ORS
E2 Power Interface
Board (PIB)
+485
-485
0V
ECT MODBUS
CONNECTOR on the
Energy Meter
BLACK
WHITE
SHIELD
+485 -4850V
W
H
I
T
E
B
L
A
C
K
S
H
I
E
L
D
+ - S
REVERSE POLARITY
Energy Meter +Data to the E2 RS485 Energy Meter -Data to the E2 RS485 +
Figure 4-11 - E2 MODBUS connection
Connect the network cable to the three-terminal
connector on the COM port that has been configured
for the Energy Meter. The Energy Meter polarity
markings are the inverse of E2; connect the Energy
Meter +Data wire to the E2 RS485 - terminal and connect the Energy Meter -Data wire to the E2 RS485 +
terminal. The shield cable should be connected to the
right most terminal.
5 Display Screen Dia-
gram
5.1. LCD Screen
Figure 5-1 - Energy Meter Screen
5.2. Buttons
When the E2 is at one end of the daisy chain, terminate the E2 with all three jumpers in the terminated
(UP) position.
Figure 5-2 - Energy Meter Buttons
10 • Energy Meter 026-1726 Rev 0 22-MAR-2011
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6 Network Setup and
E2 PIB COM PORT ASSOCIATIONS
COM1
COM4
COM6
COM2
Serial Device
RS485 COM Port
(2 Connectors)
RS485 COM Card
(2 Connectors)
Serial Device
RS232 Port
POWER INTERFACE BOARD
(PIB)
E2 Modem/Expansion
COM Card Mounted
Above PIB
Plug-In
Modem
Card
COM3
E2 Enclosure (Right Side)
RS485
RS232
Commissioning
6.1. 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.
Figure 6-1 - Location of E2 COM Ports
Connecting an Energy Meter to an E2 requires the
E2 to be version 3.0 or above. Contact Retail Solutions for upgrade information if the controller is a version before 3.0.
An E2 has up to three COM ports that can be assigned for MODBUS communication: COM2, an
RS485 port on the E2 power interface board, and
COM4 and COM6, which are optional ports requiring
expansion cards.
COM ports can only be used for one function; in
other words, if COM2 is set up as the I/O network,
you cannot connect MODBUS devices to COM2. Ensure your E2 is equipped with an RS485 COM Card
(P/N 637-4890) and configured in E2 General Servic-
es (
, Serial tab) to enable COM4 or an
E2 Expansion COM Card (P/N 637-4871) to enable
COM6.
Connect the MODBUS network cable to the threeterminal connector on the COM port you wish to assign as MODBUS. Reverse polarity of +/- on RS485
cable from E2 to device.
2. Press
followed by - General
Controller Info.
3. Press
+ to open the Serial tab of the General
Controller Info setup screens:
Figure 6-2 - Serial Communications Manager Screen
4. This screen will have a “Connection” field for all
COM ports on the E2. Highlight the COM port connection field that will be used for MODBUS, and
press - LOOK UP. From the list of network
types, select MODBUS (1-3).
5. Four fields will become visible underneath the
COM port connection field, which pertain to the
way the device communicates:
6. Baud - Default setting is 19.2k. The baud rate set-
ting should be set to match the baud rate dip switch
settings of all Energy Meter devices. (All devices
connected to the same COM port should be set to
the same baud rate.)
• Data Size - Leave this field at the default value (8).
• Parity - Leave this field at the default value (None).
The parity settings should be set to match the parity
dip switch settings of all Energy Meter devices. Refer to Table 2.
• Stop Bits - Leave this field at the default value (1).
7. Press
to save changes and exit.
Set Up Network Ports Network Setup and Commissioning • 11
Page 18
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
Figure 6-3 - Connected I/O Screen
3. In the Connected I/O screen, under the ECT tab,
4. Press
- Connected I/O Boards
and Controllers.
Enter the number of devices in the Energy Meter
number field.
to return to the Network Setup menu,
then select
- Network Summary.
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. (If you have more than one MODBUS network, specify which network you want the
device to belong to.) A screen will open that will allow you set the address:
5. Locate the Energy Meter units you added to the network list (press
list). The default name for an Energy Meter incre-
ments up starting with Energy001. The two and
three-letter designator does not apply here.
12 • Energy Meter 026-1726 Rev 0 22-MAR-2011
and to scroll through the
Figure 6-5 - Set the Address of the Energy Meter
7. In the list of MODBUS devices, choose the address
number corresponding to the Energy Meter’s dip
switch/jumper setting, and press
If a network ID has already been selected, its name
will be shown next to the network ID in this list. If
the network ID you are trying to assign has already
been used, you must set the network ID dip switch/
jumper on this device to a different number that is
to select it.
Page 19
not being used.
E2
MODBUS
device
#1 #3
REVERSE POLARITY
Energy Meter +Data to the E2 RS485 Energy Meter -Data to the E2 RS485 +
MODBUS
device
MODBUS
device
controller that has the latest version of firmware.
Figure 6-6 - List of MODBUS Devices
8. Repeat Steps 5 and 6 until each Energy Meter de-
vice has been commissioned.
9. When finished, press
Setup menu, then press
to return to the Network
- 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 nor-
mally.
• Offline - The Energy Meter is not communicating,
has not been commissioned, is not functional, or is
not powered up. Verify the Energy Meter is powered
up, wired correctly, and has the proper network address, baud rate, and parity.
• Unknown - The Energy Meter is not communicating
or has not been commissioned. Verify the Energy
Meter is powered up, wired correctly, and has the
proper network address, baud rate, and parity.
• No Port - No port is set up in the E2 Serial Config-
uration Manager to be a MODBUS port.
• Wrong FW Rev - This message is likely caused by
the Energy Meter having a firmware version older
than the minimum revision required by E2 for communication. Replace the Energy Meter with a new
Figure 6-7 - Network Summary Screen
6.3. RS-485 Communications
6.3.1. Daisy-chaining Devices to the Energy Meter
The RS-485 slave port allows the Energy Meter to
be connected in a daisy chain with up to 63 two-wire
devices. In this manual, communications link refers to
a chain of devices that are connected by a communications cable.
Figure 6-8 - Energy Meter Daisy Chain
NOTES:
• The Energy Meter polarity markings are the inverse
of E2; connect the Energy Meter +Data wire to the
E2 RS485 - terminal and connect the Energy Meter
-Data wire to the E2 RS485 + terminal. The shield
cable should be connected to the right most terminal.
• The terminal’s voltage and current ratings are compliant with the requirements of the EIA RS-485
communications standard.
• The RS-485 transceivers are ¼ unit load or less.
• RS-485+ has a 47 kOhm pull up to +5V, and RS485- has a 47 kOhm pull down to Shield (RS-485
RS-485 Communications Network Setup and Commissioning • 13
Page 20
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 Re-
tail 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).
Figure 6-9 - Energy Meter Wiring
14 • Energy Meter 026-1726 Rev 0 22-MAR-2011
Page 21
7Quick Setup Instruc-
tions
Transformer step down ratio.
b. back to the S PT screen.
9. - to the S V (Set System Voltage) screen.
These instructions assume the meter is set to factory defaults. If it has been previously configured, all
optional values should be checked.
1. Press the + or - button repeatedly until SETUP
screen appears.
2. to the PASWD screen.
3. 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. Use the + or - buttons to select the
Modbus address.
b. to the BAUD screen. Use the + or - but-
tons to select the baud rate.
c. to the PAR screen. Use the + or - but-
tons to select the parity.
a. to the VLL (or VLN if system is 1L-1n)
screen and through the digits. Use the + or -
buttons to select the Line to Line System Voltage.
b. back to the S V screen.
10. Use the to exit the setup screen and then
SETUP.
11. Check that the wrench is not displayed on the LCD.
a. If the wrench is displayed, use the + or - but-
tons to find the ALERT screen.
b. through th e screens to see which alert is on.
For full setup instructions, see the configuration
instructions in Section 10, User Interface for Data
Configuration, Section 11, Alert/Reset Information,
and Section 12, User Interface for Setup.
d. back to the S COM screen.
6. - to the S CT (Set Current Transducer) screen. If
this unit does not have an RS-485 port, this will be
the first screen.
a. to the CT V screen. Use the + or - but-
tons to select the voltage mode Current Transducer output voltage.
b. to the CT SZ screen and through the digits.
Use the + or – buttons to select the CT size in
amps.
c. back to the S CT screen.
7. - to the S SYS (Set System) screen.
a. to the SYSTM screen. Use the + or -
buttons to select the System Type (see wiring diagrams).
b. back to the S SYS screen.
8. (Optional) - to the S PT (Set Potential Transform-
er) screen. If PTs are not used, then skip this step.
a. to t he RATIO screen and through the digits.
Us e the + or – butto ns to sel ect the P o tentia l
RS-485 Communications Quick Setup Instructions • 15
Page 22
8 Solid-State Pulse Out-
put
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).
Figure 8-2 - Setting Pulse Energy
8.2. Set Pulse Energy — Wh/P
In Watt Hour (and VAR Hours, if present) per
pulse. When moving down to a smaller energy, the
meter will not allow the selection if it cannot find a
pulse duration that will allow the pulse output to keep
up with Theoretical Maximum System Power. When
moving up to a larger energy, the meter will jump to
the first value where it can find a valid solution.
Figure 8-1 - Solid-State Pulse Output
The solid state pulse outputs are rated for 24VAC/
DC max.
Maximum load current is 100mA at 25°C. Derate
0.56mA per °C above 25°C.
* The over-current protective device must be rated
for the short circuit current at the connection point.
** All pulse outputs and communication circuits
are only intended to be connected to nonhazardous
voltage circuits (SELV or Class 2). Do not connect to
hazardous voltages.
8.1. Set Pulse
The System Type, CT size, PT Ratio and System
Voltage must all be configured before setting the
Pulse Energy. If any of these parameters are changed,
the meter will hunt for a new Pulse Duration, but will
not change the Pulse Energy. If it cannot find a solution, the meter will display the wrench icon, show
8.3. Minimum Duration Time —
Milliseconds per Pulse (mS/P)
This read-only value is set by the meter to the
slowest duration (in mS per closure) that will keep up
with the Theoretical Maximum System Power. The
open time is greater than or equal to the closure time.
The maximum Pulses Per Second (PPS) is shown in
yellow.
8.4. MultiFlex I/O Board Pulse Lim-
its - Standalone Version Only
The MultiFlex board can read pulses at a maximum of 5HZ or 5PPS. The Energy Meter is capable
of pulsing faster than the 5PPS maximum that the
MultiFlex board can read.
Pulses should be greater than 80mS in length at a
maximum rate of 5HZ: Do not exceed 5PPS.
For Example:
• Values of 100, 250, or 500 will be read by the MultiFlex board.
• Values of 50, 25, or 10 will not be read by the MultiFlex board.
16 • Energy Meter 026-1726 Rev 0 22-MAR-2011
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9UI 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
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 Low Power Factor Error
F ERR F ERR Frequency Error
I OVR I OVR Over Current
V OVR V OVR Over Voltage
PULSE PULSE kWh Pulse Output Overrun (con-
_PHASE _PHASE Summary Data for 1, 2, or 3
ALERT ALERT Diagnostic Alert Status
INFO INFO Unit Information
MODEL MODEL Model Number
OS OS Operating System
RS RS Reset System
SN SN Serial Number
RESET RESET Reset Data
PASWD PASWD Enter Reset or Setup Password
ENERG ENERG Reset Energy Accumulators
DEMND DEMND Reset Demand Maximums
Table 9-1 - UI Abbreviations
VAB, VBC, VAC Voltage Line to Line
figuration error)
active phases
MultiFlex I/O Board Pulse Limits - Standalo ne Version Only UI Menu Abbreviations • 17
Page 24
10 User Interface for Data Configuration
18 • Energy Meter 026-1726 Rev 0 22-MAR-2011
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11 Alert/Reset Information
MultiFlex I/O Board Pulse Limits - Standalone Version Only Alert/Reset Information • 19
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12 User Interface for Setup
20 • Energy Meter 026-1726 Rev 0 22-MAR-2011
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MultiFlex I/O Board Pulse Limits - Standalone Version Only User Interface for Setup • 21
Page 28
13 Energy Meter Standard
MODBUS Default Settings
Setting Value
Setup Password 00000 –
Reset Password 00000 –
System Type 40 (3 + N) Wye 130
CT Primary Ratio (if
CTs are not included)
CT Secondary Ratio 1V 132
PT Ratio 1:1 (none) 133
System Voltage 600 V LL 134
Max. Theoretical Power
(Analog Output: full
scale (20mA or 5V))
Display Mode 1 (IEEE) 137
Phase Loss 10% of System Voltage
Pulse Energy 1kWh/pulse 144
Demand: number of
sub-intervals per interval
Demand: sub-interval
length
Modbus Address 001 –
Modbus Baud Rate 19200 baud –
Modbus Parity None –
Log Read Page 0 158
Logging Configuration
Register
Log Register Pointer 1 1 (Real Energy MSR) 169
Log Register Pointer 2 2 (Real Energy LSR) 170
Log Register Pointer 3 29 (Reactive Energy
Log Register Pointer 4 30 (Reactive Energy
Log Register Pointer 5 37 (Real Demand) 173
Log Register Pointer 6 38 (Reactive Demand) 174
Log Register Pointer 7 39 (Apparent Demand) 175
Table 13-1 -MODBUS Default Settings
100A 131
104 kW 135
(60V), 25% Phase to
Phase Imbalance
1 (block mode) 149
900 sec (15 min) 150
0159
MSR)
LSR)
Modbus
Register
142, 143
171
172
Setting Value
Log Register Pointer 8 155 (Month/Day) 176
Log Register Pointer 9 156 (Year/Hour) 177
Log Register Pointer 10 157 (Minutes/Seconds) 178
Table 13-1 -MODBUS Default Settings
Modbus
Register
22 • Energy Meter 026-1726 Rev 0 22-MAR-2011
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14 Troubleshooting
Problem Cause Solution
The maintenance wrench icon
appears in the Energy Meter
display.
The display is blank after applying control power to the meter.
The data displayed is inaccurate.
Cannot communicate with
Energy Meter from a remote
personal computer.
Table 14-1 - Troubleshooting
There is a problem with the inputs
to the Energy Meter.
The meter is not receiving
adequate power.
Incorrect setup values Verify the values entered for Energy Meter setup parameters (CT
Incorrect voltage inputs Check Energy Meter voltage input terminals to verify adequate
Energy Meter is wired improperly. Check all CTs and PTs to verify correct connection to the same
Energy Meter address is incorrect. Verify that the meter is correctly addressed. See the User Inter-
Energy Meter baud rate is incorrect.
Communications lines are improperly connected.
See the Alert sub-menu or the Diagnostic Alert Modbus Register
146
Verify that the meter control power is receiving the required voltage. Verify that the heart icon is blinking. Check the fuse.
and PT ratings, system type, etc.). See the Quick Setup Instruc-
tions section.
voltage.
service, PT polarity, and adequate powering. See the Wiring sec-
tion for more information.
face for Setup section.
Verify that the baud rate of the meter matches that of all other
devices on its communications link. See the Quick Setup Instruc-
tions section.
Verify the Energy Meter communications connections (see Net-
work Setup and Commissioning).
Verify the terminating resistors are properly installed on both ends
of a chain of units. Units in the middle of a chain should not have
a terminator. Verify the shield ground is connected between all
units.
MultiFlex I/O Board Pulse Limits - Standalone Version Only Troubleshooting • 23
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Page 31
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 1.25" 250 AMP
251-1008 1.25" 300 AMP
251-1009 1.25" 400 AMP
Solid Core Current Transducers
Part Number Inside Diameter Amperage
251-1020 0.30" 5 AMP
251-1021 0.50" 15 AMP
251-1022 0.50" 30 AMP
251-1023 0.75" 50 AMP
251-1024 0.75" 70 AMP
251-1025 1.00" 50 AMP
251-1026 1.00" 70 AMP
251-1027 1.00" 100 AMP
251-1028 1.00" 150 AMP
251-1029 1.00" 200 AMP
251-1030 1.25" 70 AMP
251-1031 1.25" 100 AMP
251-1032 1.25" 200 AMP
251-1033 1.25" 250 AMP
251-1034 1.25" 300 AMP
Table 15-1 - Compatible Transducers
MultiFlex I/O Board Pulse Limits - Standalone Version Only Appendix of Compatible Current Transducers • 25
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