Ampcontrol ELV-PRO RV User manual

Version: 2, July 2023
Designed and manufactured in Australia by Ampcontrol Pty Ltd
ELV-PRO RV
EARTHFAULTRESIDUALVOLTAGERELAY
UserManual

Ampcontrol Pty Ltd –ABN 28 000 915 542
ELV-PRO RV USER MANUAL
MAG-325 Version 2 –JULY 2023
Uncontrolled Copy - Refer to Ampcontrol Website for Latest Version
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WARNING!
The warning symbol highlights a potential risk of injury or death.
Please share these warnings with other operators.
CAUTION!
The caution symbol highlights a potential risk of damage to
equipment.
Please share these cautions with other operators.
NOTE
The note symbol highlights key information.
Please share these notes with other operators.
ENVIRO
The enviro (environmental) symbol highlights areas which may have an
impact on the surrounding fauna and/or flora.

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ELV-PRO RV USER MANUAL
MAG-325 Version 2 –JULY 2023
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Copyright Notice
The Ampcontrol Residual Voltage ELV-PRO RV Relay described in this document is the property of
AMPCONTROL PTY LTD. It is furnished under a license agreement and is to be used only in
accordance with the terms of the agreement.
No part of the hardware or documentation may be reproduced, transmitted, transcribed, stored in a
retrieval system, or translated into any language or computer language, in any form or by any means,
without prior written permission of AMPCONTROL PTY LTD.
Disclaimer
While every effort has been made to assure the accuracy and clarity of this document, AMPCONTROL
PTY LTD assumes no liability resulting from any omissions in this document, or from misuse of the
information obtained herein. The information in this document has been carefully checked and is believed
to be entirely reliable with all of the necessary information included. AMPCONTROL PTY LTD reserves
the right to make changes to any products described herein to improve reliability, function, or design, and
reserves the right to revise this document and make changes from time to time in content hereof with no
obligation to notify any persons of revisions or changes. AMPCONTROL PTY LTD does not assume any
liability arising out of the application or any use of any product or circuit described herein; neither does it
convey license under its patent rights or the rights of others.
Before You Begin
Thank you for purchasing the Ampcontrol ELV-PRO RV Relay.
WARNING!
In the interests of safety and correct equipment operation, please
take the time to read and understand the content in this manual.
Ampcontrol Contact Details
7 Billbrooke Close, Cameron Park, NSW, 2285
P [phone] | F [phone]
EMAIL: [e-mail]
WEB: ampcontrolgroup.com

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ELV-PRO RV USER MANUAL
MAG-325 Version 2 –JULY 2023
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TABLE OF CONTENTS
1 SAFETY AND OTHER WARNINGS......................................................................................................9
Safe Use of Equipment..................................................................................................................9
2 RECEIVING AND STORAGE..............................................................................................................10
Receiving.....................................................................................................................................10
Inspection ....................................................................................................................................10
Storage after Delivery ..................................................................................................................10
Unpacking of Equipment..............................................................................................................10
3 PRODUCT OVERVIEW ......................................................................................................................11
Description...................................................................................................................................11
Key Features ...............................................................................................................................11
Application...................................................................................................................................11
4 INSTALLATION...................................................................................................................................12
General Warnings........................................................................................................................12
Mandatory Installation Practices ..................................................................................................12
Mechanical Installation Information..............................................................................................13
Electrical Installation Information..................................................................................................16
5 PRODUCT OPERATION.....................................................................................................................25
Earth Fault Protection ..................................................................................................................25
Earth Fault Analysis Tool.............................................................................................................26
Data Logging ...............................................................................................................................26
Real Time Clock (RTC)................................................................................................................26
IP Configuration...........................................................................................................................27
Protection Settings.......................................................................................................................31
CIP over Ethernet/IP Interface .....................................................................................................33
Modbus TCP Interface.................................................................................................................33
CCM Adapter - Phase Test Inputs................................................................................................33
System Certification Details .......................................................................................................33
6 OPERATIONAL INTERFACE..............................................................................................................34
Relay Front Facia Interface..........................................................................................................34
Web Interface ..............................................................................................................................35
7 SERVICE, MAINTENANCE & DISPOSAL...........................................................................................48
Equipment Service.......................................................................................................................48
Equipment Maintenance ..............................................................................................................49
Disposal.......................................................................................................................................49
8 EQUIPMENT LIST...............................................................................................................................50
9 SPECIFICATIONS...............................................................................................................................51

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ELV-PRO RV USER MANUAL
MAG-325 Version 2 –JULY 2023
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APPENDIX A: ELV-PRO RV CIP OVER ETHERNET/IP ........................................................................52
A1 ELEMENTARY DATA TYPES......................................................................................................52
A2 LIVE DATA SEGMENT DEFINITION............................................................................................53
A3 CONTROLS .................................................................................................................................54
A4 EXPLICIT MESSAGES.................................................................................................................55
A5 EVENT LOGS...............................................................................................................................57
APPENDIX B: ELV-PRO RV Modbus TCP.............................................................................................59
B1 Modbus Commands .....................................................................................................................59
B2 Modbus Status..............................................................................................................................59
B3 Read Modbus Address Table .......................................................................................................60
B4 Uint16 Encoded String..................................................................................................................62
B5 Write Modbus Address Table........................................................................................................62
APPENDIX C: ELV-PRO RV Default Settings ........................................................................................63

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MAG-325 Version 2 –JULY 2023
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TABLE OF FIGURES
Figure 1: ELV-PRO RV Dimensions.......................................................................................................13
Figure 2: ELV-PRO RV Terminal Layout ................................................................................................13
Figure 3: CCM Adapter Module Kit (CCM + Base)..................................................................................14
Figure 4: CCM Module In Base Dimensions...........................................................................................15
Figure 5: IPX Base Mounting Details......................................................................................................15
Figure 6: Electrical Connections –ELV-PRO RV Circuit Diagram...........................................................16
Figure 7: Electrical Connections –ELV-PRO RV Power Supply (Plug 3)................................................17
Figure 8: Electrical Connections –Trip Resent and Digital Inputs (Plugs 2 & 4) .....................................17
Figure 9: Electrical Connections –CCM Adapter and Zero Crossing Connections (Plug 6)....................18
Figure 10: CCM Adapter RV Test Pulses –OSC Graph.........................................................................19
Figure 11: CCM Adapter RV Test Pulses - RMS ....................................................................................19
Figure 12: Electrical Connections –Phase CT Input (Plug 5) .................................................................20
Figure 13: Electrical Connections –Control Contact Outputs Connections (Plug 1) ...............................21
Figure 14: Trip Contact Internal Transient Suppression Filters...............................................................21
Figure 15: ELV-PRO RV Parameter Dongle...........................................................................................22
Figure 16: Ethernet and Dongle Connections.........................................................................................22
Figure 17: CCM Adapter Phase Connections.........................................................................................22
Figure 18: CCM Adapter Power Connections.........................................................................................23
Figure 19: CCM Adapter System Isolate.................................................................................................23
Figure 20: CCM Adapter Phase Test Inputs...........................................................................................24
Figure 21: Taskbar Icon: Wired Connection Available ............................................................................28
Figure 22: Network Settings ...................................................................................................................28
Figure 23: Advanced Network Settings...................................................................................................28
Figure 24: Network and Sharing Centre..................................................................................................29
Figure 25: Ethernet Status (left) and Properties (right)............................................................................29
Figure 26: Internet Protocol Versions 4 (TCP/IPv4) Properties...............................................................30
Figure 27: Relay Front Fascia Interface..................................................................................................34
Figure 28: ELV-PRO RV Web Interface –Overview...............................................................................35
Figure 29: ELV-PRO RV Web Interface - Live Graphs (RMS) ................................................................37
Figure 30: ELV-PRO RV Web Interface - Live Graphs (OSC).................................................................38
Figure 31: ELV-PRO RV Web Interface - Live Graphs (FFT)..................................................................38
Figure 32: ELV-PRO RV Web Interface - Data Logs...............................................................................39
Figure 33: ELV-PRO RV Web Interface - Data Logs (OSC)....................................................................40
Figure 34: ELV-PRO RV Web Interface - Data Logs (RMS) ...................................................................40
Figure 35: ELV-PRO RV Web Interface - Data Logs (FFT).....................................................................41
Figure 36: ELV-PRO RV Web Interface - Event Logs.............................................................................41
Figure 37: ELV-PRO RV Web Interface - Device Info.............................................................................43
Figure 38: ELV-PRO RV Web Interface –Settings.................................................................................44
Figure 39: ELV-PRO RV Web Interface - About .....................................................................................45
Figure 40: ELV-PRO RV Web Interface - Interactive Graph Navigation..................................................46
Figure 41: ELV-PRO RV Web Interface - Protection Function Trip.........................................................47

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ELV-PRO RV USER MANUAL
MAG-325 Version 2 –JULY 2023
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TABLE OF TABLES
Table 1: Definitions...................................................................................................................................8
Table 2: Firmware Versions......................................................................................................................8
Table 3: ELV-PRO RV Terminal Designators .........................................................................................14
Table 4: Residual Voltage Trip level.......................................................................................................31
Table 5: Residual Voltage Trip Time.......................................................................................................32
Table 6: Digital Input Settings.................................................................................................................32
Table 7: Relay Front Fascia LED Operation...........................................................................................34
Table 8: Web Interface Status Indicators................................................................................................36
Table 9: Event ID Descriptions...............................................................................................................42
Table 10: Login Details...........................................................................................................................44
Table 11: Modbus Commands................................................................................................................59
Table 12: Modbus Exception..................................................................................................................59
Table 13: Modbus Status........................................................................................................................59

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Table 1: Definitions
Term
Definition
BUEL
Back Up Earth Leakage
CB
Circuit Breaker: Main circuit breaker that controls power to all outlets
CCM
Cable Connection Module
CIP
Common Industrial Protocol
CT
Current Transformer
EC
Earth Continuity (Pilot to earth loop resistance)
DHCP
Dynamic Host Configuration Protocol
EFLO
Earth Fault Lock Out
FFT
Fast Fourier Transform
FLC
Full Load Current
GUI
Graphical User Interface
HMI
Human/Machine Interface
HTTP
Hypertext Transfer Protocol
IP
Internet Protocol
MC
Main Contactor; the main power circuit opening device. The main
contactor is opened and closed in order to turn the outlet on and off
MCR
Main Contactor Relay: A relay installed within the protection module to
control the supply to the main contactor coil. All trip times specified are to
the opening of the MCR
NER
Neutral Earthing Resistor
NTP
Network Time Protocol
RMS
Root Means Square
RTC
Real Time Clock
TCP
Transmission Control Protocol
UTP
Unshielded Twisted Pair
Table 2: Firmware Versions
Firmware
Definition
Backend = 6
Website = 7
Initial Release

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1 SAFETY AND OTHER WARNINGS
For safety reasons, the ELV-PRO RV Relay must be installed, operated, and serviced only by competent
personnel. Please read and understand this instruction manual completely before installing, operating, or
servicing this equipment. Failure to install or operate this instrument in accordance with the instructions
contained in this manual may create hazardous operating conditions.
Safe Use of Equipment
The equipment supplied has been designed and manufactured to ensure safe operation. The equipment
must only be used within the design parameters.
The instructions within this manual must be observed as an aid towards achieving the safest possible
installation.
Persons responsible for installation, maintenance, or operation, must observe the following
instructions:
1.1.1 Changes to Equipment
Changes in the design and modifications to the equipment are not permitted. Unauthorised changes
made to the hardware or operating firmware will void the manufacturer's warranty and may compromise
the integrity of the system into which it is installed and other connected equipment.
1.1.2 Equipment Knowledge
Experience with, or understanding of, this equipment is essential for the safe installation and removal of
the equipment. Therefore, please read and understand this manual prior to use. Competency based
training courses are recommended and are available on request.
1.1.3 Manual Handling
Precautions have been taken to ensure all equipment is safe to handle and free from sharp edges.
However, care should always be taken when handling enclosures and gloves should be worn.
1.1.4 Installation
Correct operation and safety depend on the relay being installed correctly. Mechanical and or electrical
installation and maintenance of plant and equipment must only be carried out by appropriately qualified
personnel and must be tested thoroughly prior to operation.
1.1.5 Operation
As safety depends on the relay functioning correctly, it is highly recommended that all safety functions
of the relay be periodically tested to ensure correct operation.

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ELV-PRO RV USER MANUAL
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2 RECEIVING AND STORAGE
Receiving
All possible precautions are taken to protect the equipment against damage or losses during shipment;
however, before accepting delivery, check all items against the packing list or bill of loading. If there is
evidence of physical damage, notify Ampcontrol immediately.
Notify Ampcontrol immediately in the case of any discrepancies to the packing list. Keep a record of any
claims and correspondence. Photographs are recommended.
Where practicable do not remove protective covers prior to installation unless there are indications of
damage. Boxes opened for inspection and inventory should be carefully repacked to ensure protection of
the contents or else the parts should be packaged and stored in a safe place. Examine all packing
boxes, wrappings and covers for items attached to them, retain and store any approval documentation
for your safety file as applicable prior to wrapping being discarded.
Inspection
Equipment that is found to be damaged or has been modified away from its published specifications
must not be used. Please contact Ampcontrol if the equipment is suspected to be different than that
ordered or if it does not match the published specifications.
Storage after Delivery
When the equipment is not to be installed immediately, proper storage is important to ensure protection
of equipment and validity of warranty.
All equipment should be stored indoors between 0-40˚C, preferably on shelves and protected from
moisture and sunlight.
Unpacking of Equipment
The method of packing used will depend on the size and quantity of the equipment. The following
cautions should be interpreted as appropriate.
CAUTION!
Take care when unpacking crates as the
contents may have shifted during transport.
ENVIRO
The disposal of packaging materials, replaced parts, or components
must comply with environmental restrictions without polluting the soil,
air or water.
Ensure that any timber and cardboard used as packaging is disposed
of in a safe and environmentally responsible manner.
Where possible, dispose of all waste products i.e. oils, metals, plastic
and rubber products by using an approved recycling service centre.

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3 PRODUCT OVERVIEW
Description
Ampcontrol’s ELV-PRO RV is a high performance, microprocessor based, wide bandwidth earth fault
protection relay that is capable of measuring and analysing Residual Voltages of a high impedance IT
power system. The ELV-PRO RV uses patented technology (US20130258537) to characterise residual
voltage components giving superior fault discrimination.
The relay is designed to identify faults in these power systems that may exhibit complex residual
voltages and hazardous touch potentials typically associated with variable speed drives in mining
environments.
Key Features
The ELV-PRO RV has the following key features:
•Compliance to AS/NZS 4871 and designed to AS/NZS 2081
•Patented analysis method*
•Fail safe operation
•Wide range residual voltage measurement (20Hz to 8kHz)
•Wideband, Narrowband and Weighted frequency response modes
(Wideband Mode recommended for most scenarios)
•Adjustable trip level and trip times
•On board memory logs last 1000 data logs and 50 events
•CIP over Ethernet/IP for control and monitoring
•Modbus TCP
•Continuous CCM connection monitoring
•DIN rail mounted
* International patent application number PCT/AU2011/000705
Application
The ELV-PRO RV is intended for use in high impedance IT power systems. The relay is intended to be
used as the backup earth fault protection relay in conjunction with the OCS-RV providing primary
protection on each outlet. The relay allows greater earth fault data to be captured relating to variable
frequency components not identified by the OCS-RV.
The relay also provides data logging to assist in fault finding. On each event trigger, the relay stores
system data for a window of two seconds before and two seconds after the triggered event, which
includes system time, wideband earth fault voltages and phase current.
Ethernet connection to the relay provides the ability to monitor the device parameters and real time
measured current from an internet browser. All data logs stored on the unit can also be viewed.

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4 INSTALLATION
General Warnings
These instructions have been designed to assist users of the relay with installation.
Before the relay can be installed, there are a number of things that need to be considered and
understood to prevent incorrect or unsafe operation of the relay or the system into which it is installed.
Along with relevant competence, and an understanding of the target application, the following points
should be considered:
4.1.1 Ensure that the information provided in this user manual is fully understood.
It is extremely important that the limitations and functionality of the relay are understood to prevent
incorrect installation or use, creating a potentially dangerous risk. If in doubt as to the nature of the
limitations or their implication, consult a competent authority such as a supervisor or Ampcontrol
technical representative.
4.1.2 Ensure that the application into which the relay is being installed has been
properly defined, designed and approved.
Any system intended to mitigate the risk of injury needs to be properly designed and implemented.
Such a system must be the result of structured risk analysis with the outcomes used to define the
system requirements. These requirements, in turn, will guide the choice of instrumentation, logic
solvers and actuators needed to implement the system. Understanding the needs of the system will
ensure proper selection of equipment.
4.1.3 Ensure that the relay will properly perform the required functions within the
system design.
It is important to understand how the relay is intended to interact with other equipment within a system.
For safe and reliable use, it is crucial that neither the logical operation nor its signalling be
compromised by incompatibilities with connected equipment.
4.1.4 Modifications of any form to the relay are prohibited.
If modifications of any form are made to the relay, the equipment may no longer be fit for use. If any
modifications or damage to the relay is evident, do not use the equipment and contact Ampcontrol for
advice.
Mandatory Installation Practices
The following information must be adhered to when installing the relay. Failure to adhere to this
information may give rise to unsafe operation.
Using the relay in a manner that exceeds its electrical or functional specifications, or in a way that is
contrary to its operating restrictions, may create risks to personnel and/or equipment resulting in injury or
death.
•The ELV-PRO RV system must be supplied by a regulated voltage within the specified range.
•The installation of the ELV-PRO RV system must be carried out by suitably trained and qualified
personnel.
•Identification labels fixed to the ELV-PRO RV system components must not be damaged,
removed or covered.
•The installation is to be in accordance with the relevant installation Standards/Codes of Practice.
•Modifications must not be made to any part of the ELV-PRO RV system. Modifications to its
construction will render the unit non-compliant.
•Complete and accurate records of the installation must be retained for warranty purposes.

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Mechanical Installation Information
Figure 1: ELV-PRO RV Dimensions
The ELV-PRO RV stainless-steel enclosure is rated at IP20. It is DIN Rail mounted and measures
135mm x 135mm and 107mm deep as per Figure 1. The terminal layout and description are shown in
Figure 2: ELV-PRO RV Terminal Layout and Table 3 respectively.
1
2
4
5
6
3
Figure 2: ELV-PRO RV Terminal Layout

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Table 3: ELV-PRO RV Terminal Designators
Plug
Label
Designator
Plug
Label
Designator
1
P1_5
Contact 2: Normally Open
4
P4_6
Trip Reset Input
P1_4
Contact 2: Common
P4_5
Digital Input 5
P1_3
Contact 1: Normally Open
P4_4
Digital Input 4
P1_2
Contact 1: Normally Closed
P4_3
Digital Input 3
P1_1
Contact 1: Common
P4_2
Digital Input 2
P4_1
Digital Input 1
2
P2_6
Digital Input 6: 24V Supply
P2_5
Digital Input 5: 24V Supply
5
P5_3
Phase CT Cable Screen
P2_4
Digital Input 4: 24V Supply
P5_2
Phase CT Input: Signal (H)
P2_3
Digital Input 3: 24V Supply
P5_1
Phase CT Input: Common (G)
P2_2
Digital Input 2: 24V Supply
P2_1
Digital Input 1: 24V Supply
6
P6_8
Zero Crossing Input (110VAC) (F)
P6_7
Zero Crossing Input (110VAC) (E)
3
P3_4
Power Supply Input: 0V
P6_6
CT Test Signal (D)
P3_3
Power Supply Input: 0V
P6_5
CT Test Signal (C)
P3_2
Power Supply Input: +24V
P6_4
Unused
P3_1
Power Supply Input: +24V
P6_3
RV Signal Cable Screen
P6_2
RV Signal Input: Signal (B)
Screw
Chassis Earth Connection
P6_1
RV Signal Input: Common (A)
The ELV-PRO RV has been tested and validated for use with the ELV-PRO RV CCM Adapter. Use of
any other CCM adapter will cause the system to not perform as designed. The certification will also be
void.
The ELV-PRO RV CCM Adapter can be seen in Figure 3. The CCM Adapter is made up of two separate
components, the CCM Adapter Module and an IPX Base.
Figure 3: CCM Adapter Module Kit (CCM + Base)

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Figure 4: CCM Module In Base Dimensions
Figure 5: IPX Base Mounting Details

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Electrical Installation Information
A typical installation diagram of the ELV-PRO RV System is shown below, Figure 6. The following sub-
sections provide a more detailed description of each of the individual circuit elements.
ELV-PRO RV
P3_1
24 VDC
Supply
DIG IN 2
DIG IN 3
DIG IN 4
DIG IN 5
RESET INPUT
Circuit
Breaker
Main
Contactor
M
A B C
N/O 2
COM 2
N/O 1
N/C 1
COM 1
PHASE CT (G)
PHASE CT (H)
CT SCRN
SCREEN
RV SIGNAL (A)
RV SIGNAL (B)
DO NOT CONNECT
RV TEST SIGNAL (C)
RV TEST SIGNAL (D)
INPUT - 110VAC (E)
ZERO CROSSING (F)
Relay
Output 2
Relay
Output 1
Zero Crossing
Detector
Optional
Front Panel
RESET Button
Front Panel IP
RESET Button
+24VDC
0V
24V
DIG IN 1
P3_2
P3_3
P3_4
P2_1
P2_2
P2_3
P2_4
P2_5
P2_6
P4_1
P4_2
P4_6
P4_5
P4_4
P4_3
P1_5
P1_4
P1_3
P1_2
P1_1
P5_3
P5_2
P5_1
P6_1
P6_2
P6_3
P6_4
P6_5
P6_6
P6_7
P6_8
RESET
P/B
Chassis
Earth
CCM ADAPTER
Vc
Vb
Va
RV SIGNAL (A)
RV SIGNAL (B)
RV TEST SIGNAL (C)
RV TEST SIGNAL (D)
T12
T13
T14
T15
Main
Contactor
AUX
SYS ISOLATE RTN
SYS ISOLATE
T10
T9
SCREEN T11
T2
24 VDC
Supply
+24VDC
0V
T1
T3
Phase A
Test
Phase Test A
Phase Test A - RTN
T4 T5
Phase B
Test
T6 T7
Phase C
Test
T8
Phase Test B
Phase Test B - RTN
Phase Test C
Phase Test C - RTN
I.S. EARTH IPX Base
Earth Stud
T1
Figure 6: Electrical Connections –ELV-PRO RV Circuit Diagram
WARNING!
Ensure all connections are correct prior to putting into service. Incorrect
wiring may cause damage to the various modules and / or the systems
into which they are installed.

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4.4.1 ELV-PRO RV: Power Supply (Plug 3)
The ELV-PRO RV requires a regulated 24VDC power supply. There are two input supply connections
for both the 0V and +24VDC inputs. These connections are internally connected. Terminals P3_1 &
P3_2 are the positive supply inputs. Terminals P3_3 & P3_4 are the negative supply inputs.
ELV-PRO RV
P3_1
24VDC
Control Supply
Plug 3
+24VDC
0V
P3_2
P3_3
P3_4
Figure 7: Electrical Connections –ELV-PRO RV Power Supply (Plug 3)
NOTE
There are two internally connected input supply terminations for each
input. The additional connection is to allow for daisy chaining to other
devices.
4.4.2 ELV-PRO RV: Trip Reset and Digital Inputs (Plug 2 & Plug 4)
The trip reset and digital inputs are split across two plugs; Plug 2 and Plug 4 (see Figure 8). Plug 2
(right) is a dedicated digital input and Trip Reset 24V supply. All terminals of plug 2 are internally
connected. Plug 4 (left) is a dedicated input plug; terminals P4_1 - P4_5 are assignable digital inputs,
with terminal P4_6 the Reset input. The Trip Reset Input allows the ELV-PRO RV to be reset remotely.
ELV-PRO RV
DI1
DI2
DI3
DI4
DI5
RST
ELV-PRO RV
P4_6
P4_5
P4_4
P4_3
P4_2
P4_1
P2_6
P2_5
P2_4
P2_3
P2_2
P2_1
+24VDC
Plug 4 Plug 2
RESET P/B
Figure 8: Electrical Connections –Trip Resent and Digital Inputs (Plugs 2 & 4)

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ELV-PRO RV USER MANUAL
MAG-325 Version 2 –JULY 2023
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4.4.3 ELV-PRO RV: CCM Adapter, Zero Crossing Input Connections (Plug 6)
The Earth Fault protection is achieved through the use of a CCM Adapter Module. The connections to
this are through terminals P6_1 & P6_2. Terminal P6_3 is the screen termination point for the cable
connecting the CCM Adapter signal to the relay.
NOTE
The loop impedance of the cables used to connect the CCM
Adapter to the ELV-PRO RV Relay must be less than 1Ω. It is
recommended that this is wired as a twisted pair shielded cable.
To ensure the CCM Adapter is connected and the signal the relay monitors is correct, a RV Test Signal
is provided on terminals P6_5 & P6_6. A missing test signal will cause the ELV-PRO RV to trip. The
test signal is applied every two seconds and may be seen on the live screens and data logs. If a
residual voltage is detected the test signal will not be used.
Terminal 4 of Plug 6 (P6_4) on the ELV-PRO RV should not be connected.
The Zero Crossing input, terminals P6_7 & P6_8, are provided for logging purposes. The ELV-PRO RV
is directly wired to the CCM Adapter terminals as indicated below.
ELV-PRO RV Connection
CCM Adapter Connection
P6_2
RV SIGNAL (A)
T12
RV SIGNAL (A)
P6_3
RV SIGNAL (B)
T13
RV SIGNAL (B)
P6_5
RV TEST SIGNAL (C)
T14
RV TEST SIGNAL (C)
P6_6
RV TEST SIGNAL (D)
T15
RV TEST SIGNAL (D)
Figure 9: Electrical Connections –CCM Adapter and Zero Crossing Connections (Plug 6)

Ampcontrol Pty Ltd –ABN 28 000 915 542
ELV-PRO RV USER MANUAL
MAG-325 Version 2 –JULY 2023
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NOTE
The protection system constantly injects a CCM test signal every two
seconds. As such, the residual voltage graph will record a small non-
zero value, even when the outlet is open (Not connected to the load).
This confirms that the system is operational.
Typical RV User Log with 0V RV showing two consecutive RV Test Pulses in OSC display mode.
Figure 10: CCM Adapter RV Test Pulses –OSC Graph
The typical RV Test Pulses are seen as ~1V RMS. It is possible at the low resolution for RV test Pulses
not to be drawn on the RV trace.
When the Trip level is much higher than 40V then it may not be possible at the autoscaling of the voltage
to discern the RV test Pulse (except via a log preview or on the OSC graph)
Figure 11: CCM Adapter RV Test Pulses - RMS
Calibration of the relay’s ADC channels should be undertaken through the internal website for new
installations, alterations to circuits or change of relay or modules. This ensures that the relay factors in
any external influences that could impact the signal analysis. This is achieved through the relays setting
page, see section 6.2.6.

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When performing a calibration, the system isolate input needs to be active (calibration with phase
connections earthed). It is also important that none of the phase test inputs are active during this
process.
NOTE
When Calibrating ADC Channels, System Isolate needs to be active
and Test Phase inputs are NOT to be active.
4.4.4 ELV-PRO RV: Phase CT Input (Plug 5)
The ELV-PRO RV has an optional phase CT input (Any suitable toroid with a secondary rating of 5A)
which is captured only during a logged event if available. The CT is connected to terminals P5_1 &
P5_2. Terminal P5_3 is the screen termination point for the cable connecting the phase CT to the relay.
NOTE
No settings are required within the unit for the connection of this
additional toroid, but the ratio of the toroid should be recorded so that
when data is analysed, the actual phase current can be calculated.
ELV-PRO RV
Phase Conductors
P5_3
P5_2
P5_2
SCRN
SCRN
SCRN
Plug 5
Figure 12: Electrical Connections –Phase CT Input (Plug 5)
NOTE
The loop impedance of the cables used to connect the phase CT to
the ELV-PRO RV Relay must be less than 1Ω. It is recommended
that this is wired as a twisted pair shielded cable.
NOTE
No settings are required to be set for connection of additional toroid,
However the turns ratio of the toroid should be recorded. This will allow
the actual phase current to be calculated during analysis.