Allen-Bradley PowerMonitor 500 User manual

PowerMonitor 500 Unit
Catalog Numbers 1420-V1, 1420-V1P, 1420-V1A, 1420-V1-ENT, 1420-V1-485, 1420-V1P-ENT, 1420-V1P-485, 1420-V1A-
ENT, 1420-V1A-485, 1420-V2, 1420-V2P, 1420-V2A, 1420-V2-ENT, 1420-V2-485, 1420-V2P-ENT, 1420-V2P-485, 1420-
V2A-ENT, 1420-V2A-485
User Manual
Original Instructions

Important User Information
Read this document and the documents listed in the additional resources section about installation, configuration, and
operation of this equipment before you install, configure, operate, or maintain this product. Users are required to
familiarize themselves with installation and wiring instructions in addition to requirements of all applicable codes, laws,
and standards.
Activities including installation, adjustments, putting into service, use, assembly, disassembly, and maintenance are
required to be carried out by suitably trained personnel in accordance with applicable code of practice.
If this equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment may
be impaired.
In no event will Rockwell Automation, Inc. be responsible or liable for indirect or consequential damages resulting from
the use or application of this equipment.
The examples and diagrams in this manual are included solely for illustrative purposes. Because of the many variables and
requirements associated with any particular installation, Rockwell Automation, Inc. cannot assume responsibility or
liability for actual use based on the examples and diagrams.
No patent liability is assumed by Rockwell Automation, Inc. with respect to use of information, circuits, equipment, or
software described in this manual.
Reproduction of the contents of this manual, in whole or in part, without written permission of Rockwell Automation,
Inc., is prohibited
Throughout this manual, when necessary, we use notes to make you aware of safety considerations.
Labels may also be on or inside the equipment to provide specific precautions.
WARNING: Identifies information about practices or circumstances that can cause an explosion in a hazardous
environment, which may lead to personal injury or death, property damage, or economic loss.
ATTENTION: Identifies information about practices or circumstances that can lead to personal injury or death, property
damage, or economic loss. Attentions help you identify a hazard, avoid a hazard, and recognize the consequence.
IMPORTANT Identifies information that is critical for successful application and understanding of the product.
SHOCK HAZARD: Labels may be on or inside the equipment, for example, a drive or motor, to alert people that dangerous
voltage may be present.
BURN HAZARD: Labels may be on or inside the equipment, for example, a drive or motor, to alert people that surfaces may
reach dangerous temperatures.
ARC FLASH HAZARD: Labels may be on or inside the equipment, for example, a motor control center, to alert people to
potential Arc Flash. Arc Flash will cause severe injury or death. Wear proper Personal Protective Equipment (PPE). Follow ALL
Regulatory requirements for safe work practices and for Personal Protective Equipment (PPE).

Rockwell Automation Publication 1420-UM001E-EN-P - March 2016 3
Summary of Changes
This manual contains new and updated information as indicated in the following
table
New and Updated
Information
This table contains the changes made to this revision.
Topic Page
Updated wiring diagrams in Chapter 2. 19…22
Added CIP message examples to Appendix C 75…82

4Rockwell Automation Publication 1420-UM001E-EN-P - March 2016
Summary of Changes
Notes:

Rockwell Automation Publication 1420-UM001E-EN-P - March 2016 5
Table of Contents
Preface
About This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Intended Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Catalog Number Explanation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Additional Resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Chapter 1
PowerMonitor 500 Unit Overview
About the PowerMonitor 500 Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
PowerMonitor 500 Features and Functions . . . . . . . . . . . . . . . . . . . . . . . . 10
Front Panel Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Display Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Selecting Data to Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Chapter 2
Installation and Wiring
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Wiring Diagrams. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Chapter 3
Unit Configuration
Configure with the Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Configuration Flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Digital Filtering Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Analog Output Configuration Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Alarm Configuration Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Chapter 4
Communication
EtherNet/IP Communication. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Modbus Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Appendix A
PowerMonitor 500 Unit Data Tables
Summary of Data Tables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Geometric Representation of Power and Power Factor . . . . . . . . . . . . . . 48
Data Tables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Appendix B
Technical Specifications
List of Connectable Variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Appendix C
PowerMonitor 500 EtherNet/IP
Device Profile
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Object Model and Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Identity Object - CLASS CODE 0x0001 . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Assembly Object - CLASS CODE 0x0004 . . . . . . . . . . . . . . . . . . . . . . . . . 80
Technical Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

6Rockwell Automation Publication 1420-UM001E-EN-P - March 2016
Table of Contents
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

Rockwell Automation Publication 1420-UM001E-EN-P - March 2016 7
Preface
About This Manual This manual contains detailed information on these topics:
•Mounting and wiring of the unit
•Wiring to native and optional communication port
•Set-up and use of the display module
•Information on metering functionality and measurements
•Use of the display module for configuration, monitoring, and commands
•Discussion of communication options, functionality, configuration, and
operation
•Alarm configuration and operation
•PowerMonitor™ 500 data tables
Intended Audience This manual is intended for qualified personnel. You need a basic understanding
of electric power and energy theory and terminology, and alternating-current
(AC) metering principles.
Catalog Number Explanation
1420 -V1 P -485
Bulletin Number
1420 - PowerMonitor 500
Voltage
V1 - 240V ACV-LL
120V AC V-LN/208V AC V-LL
V2 - 400V ACV-LN and
690V AC V-LL
Auxiliary
P- Pulse (Digital) Output
A- Analog Output
Blank - No Output
Optional Comms
485 - Serial RS-232,
RS-485, Modbus RTU
ENT - EtherNet/IP
and Modbus TCP/IP
Blank - No Comm

8Rockwell Automation Publication 1420-UM001E-EN-P - March 2016
Preface
Additional Resources These documents contain additional information concerning related products
from Rockwell Automation.
You can view or download publications at
http://www.rockwellautomation.com/literature/. To order paper copies of
technical documentation, contact your local Allen-Bradley distributor or
Rockwell Automation sales representative.
Resource Description
Industrial Automation Wiring and Grounding Guidelines,
publication 1770-4.1
Provides general guidelines for installing a Rockwell
Automation industrial system.
Product Certifications website, http://www.ab.com Provides declarations of conformity, certificates, and
other certification details.

Rockwell Automation Publication 1420-UM001E-EN-P - March 2016 9
Chapter 1
PowerMonitor 500 Unit Overview
About the PowerMonitor 500
Unit
The PowerMonitor™ 500 unit is an AC power monitor with a built-in advanced
configuration system and LCD data display. The unit is designed for
measurement of electrical parameters in various three-phase, single-phase
(2-wire European), and split-phase (3-wire North American single phase)
circuits. The unit modular housing can be mounted in a panel that provides IP65
degree protection from the front. The power monitor can be provided with
analog or digital (relay) outputs. These outputs can be selected to output a pulse
proportional to the real and reactive energy that is measured, or to annunciate
alarms. The instrument can also be equipped with a serial RS-485/RS-232 port
or an EtherNet/IP port.
Equipped with an optional communication port, the unit communicates power
and energy parameters to applications, such as FactoryTalk® EnergyMetrix™
software. The power monitor works with these software applications to address
these key customer applications:
•Load profiling - log power parameters such as real energy, apparent power,
and demand, for analysis of power usage by loads over time
•Cost allocation - report actual energy cost by department or process to
integrate energy information into management decisions
•Billing and sub billing - charge users of energy the actual usage cost rather
than allocating by square footage or other arbitrary methods
•Power system monitoring and control - display and control power flow and
energy utilization

10 Rockwell Automation Publication 1420-UM001E-EN-P - March 2016
Chapter 1 PowerMonitor 500 Unit Overview
PowerMonitor 500 Features
and Functions
The power monitor connects to your three-phase, split-phase (3-wire North
American single phase), or single-phase (2-wire European) AC power system
directly or through instrument transformers (PTs and CTs). It converts
instantaneous voltage and current values to digital values, and uses the resulting
digital values in calculations of voltage, current, power, energy, and demand.
The power monitor family includes several models that combine the following
basic components:
•A panel-mounted power monitor in one of two AC voltage ranges:
120/208V or 400/600V
•An optional pair of digital (relay) outputs
•An optional pair of 0…20 mA analog outputs
•Optional serial RS-232/RS-485 communication supporting Modbus
RTU
•Optional Ethernet port supporting EtherNet/IP and Modbus TCP/IP
•Front protection degree: IP65, NEMA 4X, NEMA 12
•Up to four configurable virtual alarms
•Class 1 (kWh) according to EN62053-21
•Class B (kWh) according to EN50470-3
•Class 2 (kVARh) according to EN62053-23
•Accuracy ±0.5% of reading (current/voltage)
•Metering values display: Four rows x 4 digit
•Energy value display: Ten digit plus sign
•Three-phase (system) variables: V(L-L), V(L-N), A, VA, W, VAR, power
factor, frequency
•Single phase variables: V(L-L), V(L-N), A(L), An (calculated), VA, W,
VAR , power factor
•System and single phase average and maximum variables
•Energy measurements (imported/exported): kWh and kVARh
•Revenue grade energy measurements per ANSI C12.1 Class 1.0, ANSI
C12.1
•Run hours counter (8+2 digit)
•Real-time clock function
•Universal power supply: 120/240V AC 50/60 Hz, or 120/240V DC
•Front dimensions: 96 x 96 mm (3.78 x 3.78 in)