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)

Rockwell Automation Publication 1420-UM001E-EN-P - March 2016 11
PowerMonitor 500 Unit Overview Chapter 1
Front Panel Features This section describes the front panel of the unit.
Front Panel Indicators and Control Buttons
The buttons are enhanced touch buttons. The touch icon turns on each time a
button is pressed. We recommend using your forefinger to activate the touch
buttons.
In Metering mode, buttons 4 and 5 (shown in Figure 1) are used to display the
maximum and demand (average) values of the displayed measurements.
Figure 1 - Front Panel
PowerMonitor 500
1
2
3
4
5
6
Display Item Description
1 Active Alarms AL1…AL4 status indicators.
2 Real Energy consumption rate status indicator. Faster flashing indicates higher rate of consumption. Maximum frequency 16 Hz per EN5047-1.
3 Exit Button - Press quickly to exit submenus, or to exit the programming menus in Programming mode.
When in the programming menu, press and hold Exit for at least 2 seconds to exit the programming menu. Press Program/select to confirm and return to the
metering display and exit the programming menu without saving your changes.
To save changes, use the Up and Down arrows to go to the End menu, then press Program/Select.
When not in the programming menu, press and hold for more than 2 seconds to view the information pages.
In Metering mode, press quickly to scroll through the energy counters.
4 Up Button - Press the Up button to browse menus and to increase values to be set.
5 Down Button - Press the Down button to browse menus and to decrease values to be set.
6 Program/select Button - Press and hold the Program/select button for at least 2 seconds to access the programming menu.
When in the programming menu, press Program/select to confirm the programmed values in the active page. Press Program/select to enter and exit edit mode on
the active page.
When not in the programming menu, press Program/select to select measured values for display. Press quickly to scroll through the metering display pages.
See Table 1 and Table 2 for a list of the measurement screens.

12 Rockwell Automation Publication 1420-UM001E-EN-P - March 2016
Chapter 1 PowerMonitor 500 Unit Overview
Additional Button Functions
Certain buttons have two functions. To access the second function, press and
hold the button for more than 2 seconds.
Displays PowerMonitor 500 information screens, which provide reference
standards, firmware revision, and year of manufacture.
Resets the max (maximum) of the displayed variables. You must press Program/
select to confirm the reset.
Resets the dmd (demand) of the displayed variables. You must press Program/
select to confirm the reset.

Rockwell Automation Publication 1420-UM001E-EN-P - March 2016 13
PowerMonitor 500 Unit Overview Chapter 1
Display Features Figure 2 - Features
Display Icons
Alarm Icons
•Indicates a high value alarm
•Indicates a low value alarm
ROW 1ROW 2ROW 3ROW 4ROW 5
1
2
3
4
5
10
96
7
11
8
12
Display Item Description
1 Phase displacement indicator: inductive L, -L, or capacitive C, -C.
The sign is based on the direction of real power flow.
Positive = consuming power, negative = generating power.
See the Geometric Representation of Power and Power Factor in Appendix A for more information.
In Programming mode, the indicator displays E when a parameter can be edited.
2 Indicates the measured value phase (line-to-neutral L1 or line-to-line L12).
3 Indicates the measured value phase (line-to-neutral L2 or line-to-line L23).
4 Indicates the measured value phase (line-to-neutral L3 or line-to-line L31).
5 Engineering unit and multiplier indicator (k, M, V, W, A, var, PF, Hz, An).
6 ALR: the alarm display function is active. PROG: the programming function is active.
7 Area set aside for energy counters (see Table 1), text messages, date and time (format: dd.mm.yy/hh:mm).
8 Indicates that metering values are dmd (demand) or MAX (maximum) values.
Display Item Description
9 Indicates that the metering values displayed are system (three-phase) values.
10 Indicates a phase sequence error alarm for Voltage rotation.
11 Configuration lock switch is not active. Always indicates unlocked.
12 Indication of serial RS-485/RS-232 data transmission (TX) and reception (RX).
9
10
11
12

14 Rockwell Automation Publication 1420-UM001E-EN-P - March 2016
Chapter 1 PowerMonitor 500 Unit Overview
Selecting Data to Display Tab le 1 and Ta ble 2 provide a guide to navigation through the metering data
displays available on the front panel display. Row 1…Row 5 indicate the rows of
the display (see Figure 2 on page 13).
Press for <2 seconds to cycle through the data that is displayed in Row 1
of the display.
Selected data for Row 1 remains displayed until is pressed.
Press for <2 seconds to cycle through the data that is displayed in Rows
2…5 of the display.
Selected data for Rows 2…5 displays momentarily and then returns to the default
display.
Use and to cycle through the max, instantaneous, and demand
(dmd) values.
Table 1 - Row 1 Data
Parameters123456789 10
Row 1 Total kWh
(+)
Total kVARh
(+)
Total kWh (-
)
Total kVARh
(-)
kWh (+)
part.
kVARh (+)
part.
kWh (-)
part.
kVARh (-)
part.
Run Hours
(99999999.99)
RTC
IMPORTANT
The appropriate data is displayed based on the configured system. For
example, for delta (3P) systems, individual line data is not displayed for line-
to-neutral voltage, VA, VAR, W, and power factor.
Table 2 - Rows 2…5 Data
ParametersSet01234567
Row 2 V LN ΣV LL ΣAn Hz VA ΣVAR ΣW ΣPF Σ
Row 3 V L1 V L1-2 A L1 - VA L1 VAR L1 W L1 PF L1
Row 4 V L2 V L2-3 A L2 - VA L2 VAR L2 W L2 PF L2
Row 5 V L3 V L3-1 A L3 - VA L3 VAR L3 W L3 PF L3

Rockwell Automation Publication 1420-UM001E-EN-P - March 2016 15
PowerMonitor 500 Unit Overview Chapter 1
To access information pages, press and hold for more than 2 seconds,
then press and to select information items, as shown in Tab le 3 .
After a period of inactivity, the information pages close, and the display returns to
the default screen.
IMPORTANT
Information items are not displayed for options that are not installed. For
example, a module that does not have the analog output option does not
display analog parameters (columns 11 and 12 in Table 3).
Table 3 - Rows 1…5 Information Pages
Page
No.
123 45 6789101112131415
Row 1 Serial
Number
(9
digits)
Conn.
xxx
(3PN/
3P/3P1/
3P2/1P/
2P)
Status
Indicator
Pulse
kWh
Pulse
OUT1
kWh/
kVARh
(1)
Pulse
OUT2
kWh/
kVARh(1)
Remote
out(1) AL1 AL2 AL3 AL4 Analog 1(1) Analog2
(1) COM
port(1) IP Address
XX•XX•X
X XX:XX
(Real-
time
clock)
Row 2 Yr. xx CT.rA 0.001…
1000
kWh per
pulse
0.001
…1000
kWh/
kVARh
per
pulse
xxxx
kWh/
kVARh
per
pulse
Out 1 Variable Variable Variable Variable Hi.E(2) Hi.E(2) Add XXX XXX dAtE
Row 3 rEL 1.0…9
9.99k
+/- tot/
PAr
+/- tot/
PAr
on/oFF Set 1 Set 1 Set 1 Set 1 0.0…
9999k
0.0…
9999k
1…247 XXX tiME
Row 4 A.10 Pt.rA Out2 Set 2 Set 2 Set 2 Set 2 Hi.A(3) Hi.A(3) bdr XXX
Row 5 1…60
(min)
‘dmd’
1.0…9
999
on/oFF (measur
ement)
(measur
ement)
(measur
ement)
(measur
ement)
0.0…
100.0%
0.0…
100.0%
9.6/
19.2/
38.4/
115.2
XXX
(1) If appropriate option is selected.
(2) Hi.E corresponds to the configured Max Input for the analog output.
(3) Hi.A corresponds to the configured Max Output for the analog output.

16 Rockwell Automation Publication 1420-UM001E-EN-P - March 2016
Chapter 1 PowerMonitor 500 Unit Overview
Figure 3 and 4are examples of how the information pages are displayed.
Figure 3 - Information Page 2
Figure 4 - Information Page 15
PowerMonitor 500
Row 1
Row 2
Row 3
Row 4
Row 5
PowerMonitor 500
Row 5
Row 4
Row 3
Row 2
Row 1

Rockwell Automation Publication 1420-UM001E-EN-P - March 2016 17
Chapter 2
Installation and Wiring
Installation This section shows the dimensions of the unit for installation in a panel.
Figure 5 - Base Unit Dimensions
Figure 6 - Panel Cut-out
Figure 7 - Factory-installed Optional Modules
96.00 mm
(3.78 in.)
96.00 mm
(3.78 in.) 93.00 mm
(3.66 in.)
20.20 mm
(0.80 in.)
29.70 mm
(1.17 in.)
89.97 mm
(3.54 in.)
91.00 mm
(3.58 in.)
62.99 mm
(2.48 in.)
89.49 mm
(3.52 in.)
62.99 mm
(2.48 in.)
89.49 mm
(3.52 in.)
16.00 mm
(0.63 in.)
20.00 mm
(0.79 in.)
Digital and Analog Output Modules Serial and Ethernet Communication Modules

18 Rockwell Automation Publication 1420-UM001E-EN-P - March 2016
Chapter 2 Installation and Wiring
Figure 8 - Installation in Panel
Figure 9 - Rear View of Unit Showing Wiring Terminals
Power Supply

Rockwell Automation Publication 1420-UM001E-EN-P - March 2016 19
Installation and Wiring Chapter 2
Wiring Diagrams The PowerMonitor™ 500 unit can monitor various three-phase, single-phase, and
split-phase circuits. Select the voltage connections, current wiring, and system
metering mode to match the configuration of the circuit being monitored.
Tab le 4 provides a key for you to select the proper wiring diagrams and system
metering modes.
The wiring diagrams in this manual are drawn with U.S. (NEMA) conventions.
For convenience, a connection diagram is shown in IEC style on the left and in its
corresponding NEMA style (used in the U.S.) on the right.
Figure 10 - Wiring Diagram Interpretation
Table 4 - Wiring Diagram Explanation
Circuit type No. of CTs No. of PTs Wiring Diagram System
Configuration
3-phase, 4-wire Wye Unbalanced load 3 - Figure 12 3P.n
33
3-phase, 2-wire Wye Balanced load 1 - Figure 11 3P.2
11
3-phase, 3-wire Delta Unbalanced load 3 - Figure 13 3P
2-
Open Delta Unbalanced load 3 2 Figure 13 3P
22
Open Delta Balanced load 1 2 Figure 14 3P.1
3-phase, Single CT Balanced load 1 - Figure 14 3P.1
13
Split-phase 2 - Figure 15 2P
22
Single phase 1 - Figure 16 1P
11

20 Rockwell Automation Publication 1420-UM001E-EN-P - March 2016
Chapter 2 Installation and Wiring
These diagrams are simplified. Wiring of the power monitor must comply with
all applicable codes, standards, and regulations. Protect voltage and control
power wiring with suitable overcurrent protection. Connect current transformer
(CT) secondary wiring through a suitable shorting terminal block.
Figure 11 - 3-phase, 2-wire Wye, Balanced Load
Figure 12 - 3-phase, 4-wire Wye, Unbalanced Load
IMPORTANT
In these diagrams, ‘balanced load’ configurations permit 3-phase
measurement by using only one phase connection. Unbalance in the measured
circuit affects the accuracy of the measurements.
Line
L1 N
Fuse
PT
(VT )
Load
Ground
Shorting
terminalblock
S1
I1
Ground
CT
1
L2 L3
L1
S2
N
Line
L1 N
Fuse
Load
Ground
Shorting
terminalblock
S1
I1
CT
1
L2
L3
L1
S2
N
PM 500 PM 500
1-CT Connection 1-CT and1-PT/VT Connections
Meter Configuration: System = 3P.2
Line
L1 N
Fuse
PT 1
(VT 1)
Load
Ground
Sh orting
terminalblock
S1
I1
Ground
CT
1
L2
L3
L1
S2
PM 500
3-CT and3-PT/VT Connections
S1
I2
CT
2S2
S1
I3
CT
3
S2
Fuse
PT 2
(VT 2)
L2
Fuse
PT 3
(VT 3)
L3
N
Line
L1 N
Fuse
Load Ground
Shorting
terminal block
S1
I1
CT
1
L2 L3
L1
S2
PM 500
3-CT Connection
S1
I2
CT
2S2
S1
I3
CT
3S2
Fuse
L2
Fuse
L3
N
Meter Configuration: System = 3P.n