Endress+Hauser EngyVolt RV15 User manual

Operating Instructions
EngyVolt RV15
Multifunction electrical energy meter
BA01040K/09/EN/01.11
71155512

EngyVolt RV15 Table of contents
3
Table of contents
1 Safety instructions ................... 4
1.1 Workplace safety ........................ 4
1.2 Requirements concerning the staff ............ 4
1.3 Operational safety ........................ 4
1.4 Designated use .......................... 4
1.5 Technical improvement .................... 5
1.6 Return ............................... 5
1.7 Notes on safety conventions and icons .......... 5
2 Identification ....................... 7
2.1 Device designation ....................... 7
2.2 Scope of delivery ........................ 7
2.3 Certificates and approvals .................. 7
3 Installation ......................... 9
3.1 Incoming acceptance, transport, storage ......... 9
3.2 Installation conditions ..................... 9
3.3 Dimensions ............................ 9
3.4 Installation instructions ................... 10
3.5 Post-installation check .................... 11
4 Wiring ............................ 12
4.1 Supply voltage ......................... 12
4.2 Electrical connection ..................... 12
4.3 Connecting the outputs ................... 15
4.4 Post-connection check ................... 16
5 Operation ......................... 17
5.1 Display .............................. 17
5.2 Operating elements ...................... 17
5.3 Display mode .......................... 17
5.4 Configuration mode ..................... 18
5.5 Power-up screen ....................... 19
6 Commissioning .................... 20
6.1 Post-installation check and switching on the
device ............................... 20
6.2 Menu structure ........................ 20
6.3 Device settings ......................... 22
7 Maintenance ...................... 27
8 Troubleshooting ................... 28
8.1 Spare parts ............................ 28
8.2 Return .............................. 28
8.3 Disposal ............................. 28
9 Accessories ........................ 29
10 Technical data ..................... 30
11 Appendix ......................... 36
11.1 Basis of measurement and calculations ......... 36
11.2 Modbus implementation .................. 37
11.3 RS485 general information ................. 43
11.4 Modbus protocol general information ......... 45
11.5 RS485 Implementation of Johnson Controls
Metasys .............................. 56
Index .................................. 60

Safety instructions EngyVolt RV15
4
1 Safety instructions
The reliable and safe operation of the device is only ensured if the user reads these Operating
Instructions and complies with the safety instructions they contain.
1.1 Workplace safety
For work on and with the device:
►Wear the required personal protective equipment according to federal/national regulations.
1.2 Requirements concerning the staff
The personnel for installation, commissioning, diagnostics and maintenance must fulfill the following
requirements:
►Trained, qualified specialists: must have a relevant qualification for this specific function and task
►Are authorized by the plant owner/operator
►Are familiar with federal/national regulations
►Before beginning work, the specialist staff must have read and understood the instructions in the
Operating Instructions and supplementary documentation as well as in the certificates
(depending on the application)
►Following instructions and basic conditions
The operating personnel must fulfill the following requirements:
►Being instructed and authorized according to the requirements of the task by the facility's owner-
operator
►Following the instructions in these Operating Instructions
1.3 Operational safety
Risk of injury.
►Operate the device in proper technical condition and fail-safe condition only.
►The operator is responsible for interference-free operation of the device.
Conversions to the device
Unauthorized modifications to the device are not permitted and can lead to unforeseeable dangers.
►If, despite this, modifications are required, consult with Endress+Hauser.
Repair
To ensure continued operational safety and reliability,
►Carry out repairs on the device only if they are expressly permitted.
►Observe federal/national regulations pertaining to repair of an electrical device.
►Use original spare parts and accessories from Endress+Hauser only.
1.4 Designated use
The multifunction electrical energy meter is designed to record, display and transmit electrical
measured values in low-voltage systems with a maximum nominal voltage of 500 V L-L (289 V L/
N), power connection via low-voltage current transformer x/5A at a nominal frequency of
45 to 66 Hz. It is suitable for use in single-phase power systems, and in three-phase power systems
with three or four wires.
Among other values, the electrical energy meters measure the voltage, frequency, current, power,
power factor, total harmonic distortion (THD) as well as imported and exported active power and
reactive power..
• The manufacturer accepts no liability for damages resulting from incorrect use or use other than
that designated. It is not permitted to convert or modify the device in any way.
• The device is designed for installation in a panel and must only be operated in an installed state.

EngyVolt RV15 Safety instructions
5
1.5 Technical improvement
The manufacturer reserves the right to modify technical data without prior notice. Please contact
your sales center for information on modifications or updates to the Operating Instructions.
1.6 Return
The device must be packed in protective packaging if it is being returned for repair, for example.
The original packaging offers the best protection. Repairs may only be performed by your supplier's
service organization.
When returning the device for repair, enclose a note with a description of the problem and the
application.
1.7 Notes on safety conventions and icons
1.7.1 Warnings
!DANGER
Causes (/consequences)
Consequences of non-compliance (if applicable)
►Corrective action
►This symbol alerts you to a dangerous situation. Failure to avoid the situation will result in a fatal
or serious injury.
!WARNING
Causes (/consequences)
Consequences of non-compliance (if applicable)
►Corrective action
►This symbol alerts you to a dangerous situation. Failure to avoid the situation can result in a fatal
or serious injury.
!CAUTION
Causes (/consequences)
Consequences of non-compliance (if applicable)
►Corrective action
►This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in minor
or more serious injuries.
NOTICE
Causes (/consequences)
Consequences of non-compliance (if applicable)
►Corrective action
►This symbol alerts you to situations which may result in damage to property.
1.7.2 Document symbols
Permitted
Indicates procedures, processes or actions that are permitted.
Preferred
Indicates procedures, processes or actions that are preferred.
Forbidden
Indicates procedures, processes or actions that are forbidden.
Additional information, tips
Reference to documentation

Safety instructions EngyVolt RV15
6
Reference to a page in this manual
Reference to a graphic

EngyVolt RV15 Identification
7
2 Identification
2.1 Device designation
2.1.1 Nameplate
RV15
Made in UK 2012 D-87484 Nesselwang
Ord. cd.: RV15-XXXXXXX
Ser. no.: XXXXXXXXXXXX
Ext. ord. cd.: XXXXXXXXXXXX
INPUT: 100-289 V AC L-N, 173-500V AC L-L
INPUT: 5A AC
FREQ.: 45-66 Hz
Caution: refer to installation
instruction
1
2
3
4
AUX: 120-350V DC, 110-400V AC, 5VA
A0016766
å 1 Nameplate EngyVolt RV15 (example)
1 Device designation
2 Order code, serial number and extended order code of the device
3 Input variable and auxiliary power supply
4 Year of manufacture and manufacturer address
Made in UK 2012
ModBus Modul RS485
D-87484 Nesselwang
Ord. cd.: RK03--XXXX/XX
Ser. no.: XXXXXXXXXXXX
Ext. ord. cd.: XX
Caution: refer
to installation
instruction
B A GND
1
2
3
A0016765
å 2 Nameplate EngyVolt RV15 extension module (example)
1Module designation, order code, serial number
2 Terminals
3 Year of manufacture and manufacturer address
2.2 Scope of delivery
The scope of delivery comprises:
• Multifunction electrical energy meter for panel mounting
• Brief Operating Instructions
2.3 Certificates and approvals
2.3.1 CE mark, declaration of conformity
The device is designed to meet state-of-the-art safety requirements, has been tested and left the
factory in a condition in which it is safe to operate. The device meets the relevant standards and
directives as per EN 61 010-1 "Safety requirements for electrical equipment for measurement,
control and laboratory use".
Thus, the device described in these Operating Instructions meets the legal requirements for the EU
directives. The manufacturer confirms successful testing of the device by affixing to it the CE mark.

Identification EngyVolt RV15
8
For an overview of all available certificates and approvals, refer to the "Technical data" chapter.

EngyVolt RV15 Installation
9
3 Installation
3.1 Incoming acceptance, transport, storage
Compliance with the permitted storage and transportation conditions is mandatory. Precise
specifications are provided in the "Technical data" section (® ä 30).
3.1.1 Incoming acceptance
On receipt of the goods, check the following points:
• Is the packaging or the content damaged?
• Is the delivery complete? Compare the scope of delivery against the information on your order
form.
3.1.2 Transport and storage
Please note the following:
Pack the device so that is protected against impact for storage and transport. The original packaging
provides optimum protection.
3.2 Installation conditions
Measuring devices must be mounted in a dry location at stable ambient temperatures that do not
exceed or drop below the range of –10 to 55 °C (14 to 131 °F). There should be minimum tension
from vibrations. If possible, the measuring device should be mounted in such a way that the contrast
of the display is not affected by direct sunlight or strong lighting. The LCD display is optimized for
vertical reading. If the display is read horizontally, lighting conditions can affect the readability of
the display. The measuring device can be installed in any panel cutout according to DIN 96 with a
maximum thickness of up to 5 mm (0.2 in). When mounting, make sure there is sufficient room to
connect cables and wires on all sides of the measuring device. The front of the measuring device is
suitable for use with IP52 protection.
3.3 Dimensions
96 (3.78)
64.1 (2.52)
96 (3.78) 58 (2.28)
*
*
77.5 (3.05)
83.6 (3.29)
**
**
mm (in)
A0016361
å 3 Device dimensions
*without extension modules
** with extension modules

Installation EngyVolt RV15
10
92 (3.62)
92 (3.62)
mm (in)
A0016362
å 4 Dimensions for panel cutout
3.4 Installation instructions
1
2
A0016512
å 5 Panel mounting of the EngyVolt RV15
1Panel with requisite cutout
2 Integrated snap-on fastener
1. Create the panel cutout with the necessary dimensions (® å 4, ä 10).
2. Push the device into the panel cutout from the front until the snap-on fastener which is
integrated in the housing locks into place.

EngyVolt RV15 Installation
11
3.4.1 Installation of extension modules
1
2
A0016769
å 6 Installation of extension modules
1 Pulse extension module
2 RS485 / pulse extension module
3.5 Post-installation check
• Is the device located in the center of the panel cutout?
• Are the integrated snap-on fasteners locked in place?
• Is there enough room for the cable connections?

Wiring EngyVolt RV15
12
4 Wiring
!WARNING
Danger! Electric voltage!
►The entire electrical connection must be performed when the device is de-energized.
►Establish the protective ground connection before making any other connections.
NOTICE
Cable heat load
►Use suitable cables for temperatures that are 5 °C (9 °F) above the ambient temperature.
Incorrect supply voltage can damage the device or cause malfunctions
►Before commissioning the device, make sure that the supply voltage matches the voltage
specifications on the nameplate.
Incorrect wiring can damage the device
►Observe the terminal designations on the device.
Electrical overloading can damage the device
►Provide overcurrent protection elements for the power cables.
►Provide a suitable switch or power-circuit breaker for emergency shutdown in building
installations. This switch must be provided close to the device (within easy reach) and marked
as a circuit breaker.
4.1 Supply voltage
The supply voltage is designed for the range from 100 to 400 V AC and 120 to 350 V DC. Preferably,
the supply voltage should be provided from a source other than the measured voltage. The measured
voltage can be used if it is within the tolerance limits of the supply voltage.
4.2 Electrical connection
The terminals are located on the back of the housing.

EngyVolt RV15 Wiring
13
4.2.1 Connection in single-phase, 2-wire power network
L1
N
L1
N
AUX
N
L3
L2L1
+I1- +I2- +I3-
S1
P1
2
3
4
4
1
A0016400
å 7 Connection in single-phase, 2-wire power network
1Fast-acting fuse 1 A
2 Slow-blow fuse 1 A
3 Supply voltage
4 Load
4.2.2 Connection in 3-phase, 3-wire power network
!WARNING
The neutral terminal (terminal N) is indirectly connected to the voltage input terminals
(terminals L1, L2, L3). When connected to a three wire system the neutral terminal will
adopt a potential somewhere between the remaining lines.
Danger through electric voltage
►If external wiring is connected to the neutral terminal it must be connected to either the neutral
line or earth (ground) to avoid the possibility of electric shock from the neutral terminal.

Wiring EngyVolt RV15
14
L1
AUX
N
L3
L2L1
+I1- +I2- +I3-
L2
L3
L1
L2
L3
S1
P1
S1
P1
2
3
4
4
1
A0016404
å 8 Connection in 3-phase, 3-wire power network
1Fast-acting fuse 1 A
2 Slow-blow fuse 1 A
3 Supply voltage
4 Load
The "S2" secondary terminals of the current transformers are connected in the multifunction
electrical energy meter. Only one protective ground connection * must be provided for this reason.

EngyVolt RV15 Wiring
15
4.2.3 Connection in 3-phase, 4-wire power network
L1
AUX
N
L3
L2L1
+I1- +I2- +I3-
L2
L3
L1
L2
L3
S1
P1
S1
P1
N
N
S1
P1
1
2
3
4
4
A0016406
å 9 Connection in 3-phase, 4-wire power network
1Fast-acting fuse 1 A
2 Slow-blow fuse 1 A
3 Supply voltage
4 Load
The "S2" secondary terminals of the current transformers are connected in the multifunction
electrical energy meter. Only one protective ground connection * must be provided for this reason.
4.3 Connecting the outputs
4.3.1 RS485 interface for communication via Modbus RTU or Metasys
N2
The RS485 Modbus RTU interface is connected to the terminals of the RS485 / pulse module which
are provided for this purpose.

Wiring EngyVolt RV15
16
RS485
Gnd
A
B
1
A0016407
å 10 Connecting the RS485 Modbus RTU interface
1 RS485 / pulse module
A shielded, two-wire cable is recommended for the connection between the RS485 master and the
measuring device. A cable that is specially designed for connecting RS485 interfaces should be used
where possible. However, satisfactory results can be achieved with most shielded cables for
connection distances of just a few meters. Cat IV network cables also deliver satisfactory results.
Given that the measuring device communicates with an external device via an RS485 connection,
distances of up to 1200 m can be covered under good conditions. Electrical interference or other
negative conditions can reduce the distance over which reliable operation is possible.
4.3.2 Pulse output
The pulse output/outputs is/are connected to the terminals of the pulse or RS485/pulse extension
modules which are provided for this purpose.
1 2
3 3
A0016408
å 11 Connecting the pulse output
1RS485 / pulse module
2 Pulse module
3 Relay connection
Semi-conductor relays are provided. The nominal power is 250 V, 50 mA for each relay. Connecting
cables must be as short as possible, meet the specific requirements and be filtered where necessary.
4.4 Post-connection check
Device condition and specifications Notes
Are cables or the device damaged? Visual inspection
Electrical connection Notes
Does the supply voltage match the specifications in the "supply voltage" section? (® ä 12)
Are the mounted cables strain-relieved? -
Are the power supply and signal cables correctly connected? (® ä 12) and (® ä 15)

EngyVolt RV15 Operation
17
5 Operation
5.1 Display
The display screen is used in 2 operating modes:
•Display mode (® ä 17) to display measured values
•Configuration mode (® ä 17) of the multifunction electrical energy meter. The possible settings
are described in the "Commissioning" section (® ä 20).
5.2 Operating elements
You can directly access various measured values via the 4 keys on the front of the multifunction
electrical energy meter. The keys are used to configure the device in the configuration mode.
A0016376
Is used to display voltage and frequency. This is the "Back" function in the configuration mode.
A0016377
Is used to display the currents. This is the "Up" function in the configuration mode.
A0016379
Is used to display the power values and the power factor. This is the "Down" function in the
configuration mode.
A0016378
Is used to display the energy values. This is the "Enter" function in the configuration mode.
5.3 Display mode
The measured values are shown on the backlit liquid crystal display.
Order in which measured values are displayed in the display mode
Key View No. Description
3-phase, 4-wire
View No. Description
3-phase, 3-wire
View No. Single-phase, 2-wire
A0016376
1 V L1-N (voltage L1/N)
V L2-N (voltage L2/N)
V L3-N (voltage L3/N)
1 V L1-L2 (voltage L1/L2)
V L2-L3 (voltage L2/L3)
V L3-L1 (voltage L3/L1)
1 V L1 (voltage L1)
2 V L1-L2 (voltage L1/L2)
V L2-L3 (voltage L2/L3)
V L3-L1 (voltage L3/L1)
3 Frequency 2 Frequency 2 Frequency
4 V L1-N %THD*
(%THD voltage L1/N)
V L2-N %THD*
(%THD voltage L2/N)
V L3-N %THD*
(%THD voltage L3/N)
5 V L1-L2 %THD*
(%THD voltage L1/L2)
V L2-L3 %THD*
(%THD voltage L2/L3)
V L3-L1 %THD*
(%THD voltage L3/L1)
3 V L1-L2 %THD*
(%THD voltage L1/L2)
V L2-L3 %THD*
(%THD voltage L2/L3)
V L3-L1 %THD*
(%THD voltage L3/L1)
3 V L1 %THD*
*) %THD = % Total Harmonic Distortion

Operation EngyVolt RV15
18
Key View No. Description
3-phase, 4-wire
View No. Description
3-phase, 3-wire
View No. Single-phase, 2-wire
A0016377
1 A L1 (current L1)
A L2 (current L2)
A L3 (current L3)
1 A L1 (current L1)
A L2 (current L2)
A L3 (current L3)
1 A L1 (current L1)
2 A neutral current
3 A L1 MAX
(Current L1, maximum value, time-
integrated, maximum indicator
function)
A L2 MAX
(Current L2, maximum value, time-
integrated, maximum indicator
function)
A L3 MAX
(Current L3, maximum value, time-
integrated, maximum indicator
function)
2 A L1 MAX
(Current L1, maximum value, time-
integrated, maximum indicator
function)
A L2 MAX
(Current L2, maximum value, time-
integrated, maximum indicator
function)
A L3 MAX
(Current L3, maximum value, time-
integrated, maximum indicator
function)
2 A L1 MAX
(Current L1, maximum value, time-
integrated, maximum indicator
function)
4 A neutral current MAX
(Maximum value, time-integrated,
maximum indicator function)
5 I %THD* L1
(%THD current L1)
I %THD* L2
(%THD current L2)
I %THD* L3
(%THD current L3)
3 I %THD* L1
(%THD current L1)
I %THD* L2
(%THD current L2)
I %THD* L3
(%THD current L3)
3 I %THD* L1
(%THD current L1)
A0016379
1 kW active power
kvar reactive power
kVA apparent power
1 kW active power
kvar reactive power
kVA apparent power
1 kW active power
kvar reactive power
kVA apparent power
2 kW MAX (active power, maximum
value, time-integrated, maximum
indicator function)
2 kW MAX (active power, maximum
value, time-integrated, maximum
indicator function)
2 kW MAX (active power, maximum
value, time-integrated, maximum
indicator function)
3 PF power factor (with symbol: coil =
inductive, capacitor = capacitance)
3 PF power factor (with symbol: coil =
inductive, capacitor = capacitance)
3 PF power factor (with symbol: coil =
inductive, capacitor = capacitance)
A0016378
1 kWh electrical energy (active
component)
1 kWh electrical energy (active
component)
1 kWh electrical energy (active
component)
2 kvarh electrical energy (reactive
component)
2 kvarh electrical energy (reactive
component)
2 kvarh electrical energy (reactive
component)
*) %THD = % Total Harmonic Distortion
5.4 Configuration mode
The abbreviation for the parameter is displayed in the top display row in the configuration mode.
The middle row displays the parameter value. The bottom row is used to confirm the set value of
the parameter.
To enter the configuration mode, press and hold the and keys simultaneously for 5 seconds.
The screen to enter the 4-digit password is displayed. No default password is set. A password can
be used to prevent unauthorized access to the device settings. Once the correct password has been
entered, the device is on the first level of the menu structure. If a password was not configured for
the device beforehand, the setup is called up by pressing the key four times.
The parameter to be configured is selected with the and keys. When the key is pressed,
the parameter is selected and the user enters the second level of the menu structure. Values can be
changed at this level, such as the values of the system configuration, for example. There is a third
level in the menu structure for some parameters, such as the parameters for communication. This
level is reached in the same way. Once the necessary settings have been made, press the key to
return to the first level in the menu structure.

EngyVolt RV15 Operation
19
Generally speaking, the and keys change the value of the parameter; the key confirms the
change / setting and skips to the next display screen (next parameter).
You can exit the configuration mode at any time by pressing the and keys simultaneously for
5 seconds. Any changes that have already been made are retained. You can also exit the configuration
mode by repeatedly pressing the key. In both cases, the device switches back to the last measured
values displayed.
The possible settings are described in the "Commissioning" section (® ä 20).
5.4.1 Entering numbers
Users must frequently change digits in the configuration mode, usually in the middle row of numbers.
The key is used to increase and the key to decrease a value.
The current digit to be changed flashes on the screen. Pressing the key accepts the set value and
switches to the next digit. In each particular row of numbers, the digits are set in succession from
left to right.
Pressing the key takes you back to the previous digit.
Once the last digit has been accepted, "SET" is displayed in the bottom row of the display.
5.5 Power-up screen
After powering up the energy meter (switching on the supply voltage), a number of screens are
displayed by way of a self-test.
1st screen: All the LCD segments are displayed. This is used as a self-test for the display.
2nd screen: The firmware version of the energy meter is displayed.
3rd screen: Displays the result of the self-test when powering up the energy meter.
The device then switches to the first measured value display and displays the voltage values.

Commissioning EngyVolt RV15
20
6 Commissioning
6.1 Post-installation check and switching on the device
Perform all the final checks before commissioning the device.
•Checklist for "post-installation check" (® ä 11)
•Checklist for "post-connection check" (® ä 16)
When the operating voltage is applied, a number of screens are first displayed by way of a self-test
(® ä 19).
If you are commissioning the device for the first time, program the setup as described in the following
sections. If you are commissioning a device that is already configured, the device starts measuring
immediately as defined in the settings and the values are shown on the display.
6.2 Menu structure
First level Second level Third level
CHNG PASS
Change password
NPWd
(new password)
Change the value of the password.
Range for selection: 0 to 9 999
Main menu Password entry SYS (system configuration) Choose from:
• 1P2W (single-phase, 2-wire)
• 3P3W (3-phase, 3-wire)
• 3P4W (3-phase, 4-wire)
CT (current transformer primary value) Change the value. Range for selection:
1 to 9 999 A
dIT (integration time of average values
for maximum indicator function)
Choose from:
• 60 minutes
• 30 minutes
• 20 minutes
• 15 minutes
• 10 minutes
• 8 minutes
• 5 minutes
• OFF
RSET (reset) Choose from:
• dmd (maximum time-integrated
average values - maximum indicator
function)
• ALL
• hour (kWh & kvarh)
COMS (communication) FMT (protocol) Choose from:
• Modb (Modbus RTU)
• N2 (Johnson Controls Metasys N2)
bAUd (baud rate) Choose from:
• 2 400
• 4 800
• 9 600
• 19 200
• 38 400
PARI (parity) Choose from:
• None
• Odd
• Even
STOP (stop bits) Choose from:
• 1
• 2