Endress+Hauser EngyVolt RV12 User manual

Products Solutions Services
Operating Instructions
EngyVolt RV12
Multifunction electrical energy meter
BA01039K/09/EN/03.13
71211948

EngyVolt RV12 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 ........................ 8
3.1 Incoming acceptance, transport, storage ...... 8
3.2 Installation conditions ................... 8
3.3 Dimensions ........................... 8
3.4 Installation instructions .................. 9
3.5 Post-installation check ................... 9
4 Wiring ............................ 10
4.1 Supply voltage ........................ 10
4.2 Electrical connection ................... 10
4.3 Connecting the outputs ................. 13
4.4 Post-connection check .................. 14
5 Operation ......................... 15
5.1 Display ............................. 15
5.2 Operating elements .................... 15
5.3 Display mode ......................... 15
5.4 Configuration mode .................... 16
5.5 Power-up screen ...................... 17
6 Commissioning .................... 18
6.1 Post-installation check and switching on the
device .............................. 18
6.2 Menu structure ....................... 18
6.3 Device settings ........................ 20
7 Maintenance ...................... 25
8 Troubleshooting .................. 26
8.1 Spare parts .......................... 26
8.2 Return .............................. 26
8.3 Disposal ............................ 26
9 Accessories ....................... 27
10 Technical data .................... 28
11 Appendix ......................... 34
11.1 Basis of measurement and calculations ...... 34
11.2 Modbus implementation ................ 35
11.3 RS485 general information .............. 41
11.4 Modbus protocol general information ....... 43
11.5 RS485 Implementation of Johnson Controls
Metasys ............................ 55
Index .................................. 59

Safety instructions EngyVolt RV12
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.
Environmental requirements
If a plastic transmitter housing is permanently exposed to certain steam and air mixtures,
this can damage the housing.
‣If you are unsure, please contact your Endress+Hauser Sales Center for clarification.
‣If used in an approval-related area, observe the information on the nameplate.
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

EngyVolt RV12 Safety instructions
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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 meter measures the voltage, frequency, current,
power, power factor, total harmonic distortion (THD) as well as active energy and reactive
energy.
• 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 mounting on a top-hat rail according to DIN 43880 and must
only be operated in an installed state.
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.

Safety instructions EngyVolt RV12
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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
Reference to a page in this manual
Reference to a graphic

EngyVolt RV12 Identification
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2 Identification
2.1 Device designation
2.1.1 Nameplate
RV12
Made in UK 2012 D-87484 Nesselwang
Ord. cd.: RV12-XXXX/XX
Ser. no.: XXXXXXXXXXXX
Ext. ord. cd.: X
INPUT: 100-289V 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, 5 VA
A0016768
 1 EngyVolt RV12 nameplate (example)
1 Device designation
2 Order code, serial number and extended order code of the device
3 Input variables and power supply
4 Year of manufacture and manufacturer address
2.2 Scope of delivery
The scope of delivery comprises:
• Multifunction electrical energy meter for top-hat rail mounting
• Brief Operating Instructions
• Comprehensive Operating instructions are available for download at www.endress.com/
download
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.
For an overview of all available certificates and approvals, refer to the "Technical data"
chapter.

Installation EngyVolt RV12
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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 (→  28).
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
The device can be mounted on a standard top-hat rail.
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.
3.3 Dimensions
58 (2.28)
48 (1.89)
32.2 (1.27)
61.5 (2.42)
45 (1.77)
mm (in)
93.6 (3.69)
NL3 L2 L1 AUX
PULSE MODBUS CT INPUTS
B A G -I3+ -I2+ -I1+
VOLTAGE INPUTS
90.5 (3.56)
71.3 (2.81)
A0016363
 2 Device dimensions

EngyVolt RV12 Installation
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3.4 Installation instructions
1.
2.
A0016514
1. Fit the device on the top-hat rail from above.
2. Push the bottom of the device back until it locks into place.
To remove the device from the top-hat rail, lever down the black tab at the bottom of the
device (use a suitable tool such as a screwdriver).
3.5 Post-installation check
Is the device securely mounted on the top-hat rail and locked in place?

Wiring EngyVolt RV12
10
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
To ensure maximum accuracy, we recommend that the current signal connecting cables
pass through additional ferrite cores (e.g. of type 742 701 110 from Würth Elektronik) at
least six times.