Chauvin Arnoux ULYS FLEX MODBUS User manual

Ed2111
GB - User’s manual

WARRANTY, RESPONSIBILITY AND INTELLECTUAL PROPERTY
WARRANTY
Unless expressly stipulated, the warranty runs for twelve months after the date of supply of the monitor (extract from our General
Conditions of Sale, available on request).
INTELLECTUAL PROPERTY RIGHTS
All manuals and documentation of any nature are the property of CA ENERGY and protected by intellectual property rights, all rights
reserved. They may not be distributed, reproduced, or translated, in whole or in part, in any manner and in any form whatsoever.
COPYRIGHT
All rights reserved The reproduction, adaptation or translation of this manual without prior written permission is prohibited, within
the bounds set out by the laws governing copyright.
Copyright CA ENERGY – 2018.
First edition, May 2018.
REGISTERED TRADEMARKS
ULYS FLEX MODBUS is a trademark registered by CA ENERGY.
EQUIPMENT END-OF-LIFE
The products which we sell do not fall within the scope of Decree No. 2005-829 relating to the construction of electrical and electronic
equipment and the disposal of waste arising from this equipment.
In accordance with Article L541-2 of the Environmental Code, it is the responsibility of the holder of the waste to dispose of it, or to
make sure it is disposed of, appropriately.

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MANUAL
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MODBUS
Communication Protocol

MANUAL
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INDEX • Use&Programming
1. Introduction .....................................................................................................................7
1.1 SAFETY PRECAUTIONS .............................................................................................................................................................7
2. Graphic symbols..............................................................................................................8
3. Preliminary verification...................................................................................................8
4. General description.........................................................................................................8
5. Installation ......................................................................................................................9
5.1 ENVIRONMENTAL REQUIREMENTS..........................................................................................................................................9
5.2 MOUNTING.................................................................................................................................................................................9
6. Safety measures..............................................................................................................9
7. Electrical connections ...................................................................................................10
7.1 CURRENT AND VOLTAGE INPUTS...........................................................................................................................................10
7.2 POWER SUPPLY.......................................................................................................................................................................11
7.3 RS485 COMMUNICATION PORT ..............................................................................................................................................12
7.5 DIGITAL OUTPUT......................................................................................................................................................................13
8. Use and configuration....................................................................................................14
8.1 SYMBOLS ON DISPLAY ............................................................................................................................................................14
8.2 PAGE STRUCTURE...................................................................................................................................................................16
8.3 HOME PAGE .............................................................................................................................................................................16
8.4 LOOP 1 - REAL TIME VALUES.................................................................................................................................................. 17
8.5 MEASUREMENT OVERFLOW ................................................................................................................................................... 18
8.6 REAL TIME MIN/MAX VALUES.................................................................................................................................................18
8.7 REAL TIME PARAMETER TABLE..............................................................................................................................................19
8.8 LOOP 2 - DMD VALUES ............................................................................................................................................................20
8.9 DMD MAX VALUE .....................................................................................................................................................................20
8.10 DMD PARAMETER TABLE......................................................................................................................................................20
8.11 LOOP 4 - ENERGY COUNTERS...............................................................................................................................................21
8.12 ENERGY COUNTER TABLE ....................................................................................................................................................23
8.13 LOOP 5 - USER SETUP...........................................................................................................................................................25
8.14 LOOP 7 - INSTALLATION SETUP............................................................................................................................................30
8.15 LOOP 6 - INFO........................................................................................................................................................................ 33
9. Technical specifications.................................................................................................34

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1. INTRODUCTION
You have just purchased an ULYS FLEX MODBUS. Thank you for your choice. To get the best from your device:
• Read this user’s manual before installing and using the device.
• Follow the precautions for use stated in this document.
Symbol Meaning
HAZARD WARNING! The operator must consult this manual whenever this danger symbol is
encountered.
This symbol indicates compliance with European directives, including LVD and EMC.
This symbol means that in the European Union, the product is subject to separate collection in
accordance with WEEE 2002/96/EC: this material should not be treated as household waste.
Information.
• Make sure the device is intact and undamaged upon receipt. In the event of any problems, please contact
the after-sales department for any repairs or replacements.
• The device described in this manual is intended to be used by trained staff only.
• Any maintenance operations must be carried out by qualified and authorized personnel only.
• For correct and safe use and for all maintenance operations, it is essential that staff follow standard safety
procedures.
• This device is intended to be used in Category III installation and pollution degree 2 conditions in accordance
with standard IEC 61010-1.
• Before installation, check that the supply voltage matches that of the mains supply network.
1.1 SAFETY PRECAUTIONS
Safety precautions
Before any intervention, check that the device is unplugged from all power sources.
Precautions against electrical noise
Although the ULYS FLEX MODBUS is protected from electrical and electromagnetically induced interference,
keep away from theimmediatevicinityof equipment generating significant electricalnoise(high-powerswitches,
busbars, etc.). The quality of data communication on the data bus depends heavily on taking such precautions.
Precautions in the event of deterioration
When safe operation is no longer possible, the instrument must be switched off and isolated. This applies when:
• the device is visibly damaged during operation (whether the device still operates or not),
• the device does not work after prolonged storage in poor conditions,
• the device no longer works following severe damage during transport.
Cleaning instructions
When the device is disconnected from the mains, clean the outer surface using only a dry cloth. Do not use
abrasives or solvents. Prevent the connector terminals getting wet.

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2. GRAPHIC SYMBOLS
In this manual, some instructions are highlighted with graphic symbols to alert the reader to possible danger.
These symbols are:
DANGER! This symbol warns of the presence of dangerous voltage (even for short moments)
on the indicated points.
WARNING! This symbol alerts you to the possibility of a serious incident or damage to the unit
if proper precautions are not taken.
NOTE. This symbol indicates the presence of important information that should be read carefully.
3. PRELIMINARY VERIFICATION
NOTE. At the opening of the box, check that the instrument has not been damaged during
transport. If the instrument appears to be damaged, contact the technical after-sales service.
The box contains:
• the instrument
• the quick guide
• no. 3 Rogowski coils
4. GENERAL DESCRIPTION
The instrument is a digital meter able to measure the electrical parameters on three-phase systems. It provides
accurate measurements even by distorted waveform.
LCD display provides the three-phase quantities. The working parameters can be easily set up by instrument
keypad.
The instrument is a compact, cost effective meter operating both as a stand-alone device or as an integral part
of a more extensive energy monitoring and management network.
Theinstrumentreplacesmultipleanalogmetersas well as single functionmeters such asvoltmeters,ammeters,
wattmeters, varmeters, frequency-meters, powerfactor-meters, energy-meters, etc.
1 DIGITAL
OUTPUT
VOLTAGE AND CURRENT INPUTS
SET
UP
ENTER
DOWN
RS485
PORT
AUX
POWER SUPPLY

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5. INSTALLATION
NOTE. The equipment complies with the 89/366/EEC, 73/23/EEC standards and following
amendments. However, if not properly installed, it may generate a magnetic field and radio
interference. This is why compliance with EMC standards on electromagnetic compatibility is
essential.
5.1 ENVIRONMENTAL REQUIREMENTS
The environment in which the instrument is installed must satisfy the following features:
• indoor area
• operating temperature between -25°C and +55°C
• max humidity 80% (no condensation)
• up to 2000 m over sea-level altitude
NOTE. The instrument must not be exposed to sun rays.
5.2 MOUNTING
Fastening to DIN rail (EN 60715) is provided for the instrument.
To mount it on the DIN rail, use a screwdriver as a lever on the plastic hook at the instrument bottom. This
operation will allow the instrument to fit on the rail.
6. SAFETY MEASURES
DANGER! This warning means that a dangerous voltage may be present on the terminals even
for short periods.
WARNING! Electrical instrument connections must be carried out only by skilled technicians
who are aware of the risks involved to the presence of voltage.
Before connecting, check the following:
1. The conductor wires are not powered.
2. The instrument is connected according to the appropriate diagram.
3. The power supply corresponds to the values on the instrument specification.
4. The instrument has been installed in a vibration-free and a suitable temperature environment.
5. The terminals are no longer accessible after being connected.
6. The wiring is carried out in accordance with the standards in force in the Country where the instrument
will be installed.
7. A circuit breaker and an over-current device (eg. 250 mA T type fuse) are installed between the instrument
power supply and the electrical system.
8. The connections are made respecting the polarities.
- L1 of the voltage input = L1 of the amperometric input.
- L2 of the voltage input = L2 of the amperometric input.
- L3 of the voltage input = L3 of the amperometric input.
9. Input and output polarities are respected when using Rogowski coils.
10. The terminals are fixed in such a way that the connection wires cannot be accidentally disconnected.

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7. ELECTRICAL CONNECTIONS
WARNING! The instrument installation and use must be carried out only by qualified staff.
Switch off the voltage before device installation.
7.1 CURRENT AND VOLTAGE INPUTS
DANGER! This section describes the measurement voltage and current inputs susceptible to
dangerous voltage levels.
WARNING! Before carrying out connections, check if there is no voltage/current in the conductor
wires. DO NOT CONNECT conductors under voltage/current.
3 ph, 4 w, 3 RGW (3.4.3) 3 ph, 3 w, 3 RGW (3.3.3) 1 phase (1ph)3 ph, 3 w, 2 RGW (3.3.2)
Instrument with Rogowski coils
For Rogowski coil insertion, connect the yellow coil edge to the terminal (signal), and the white coil edge to
the terminal (common).
WHITE
edge
sheath
BLUE
wire
shield
YELLOW
edge
WHITE
wire
Detail of Rogowski coil connection

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Wiring diagrams using voltage transformers:
3 phase, 4 wires 3 phase, 3 wires 1 phase
Instrument with voltage transformer
For wiring mode selection, refer to section 8.14.1.
7.2 POWER SUPPLY
DANGER! This section describes the AUX supply input
susceptible to dangerous voltage levels.
WARNING! Before carrying out connections, check if there is
no voltage/current in the conductor wires. DO NOT CONNECT
conductors under voltage/current.
WARNING! Install a circuit breaker and an over-current
device (eg. 250 mA T type fuse) between the instrument
power supply and the electrical system.
WARNING! Before connecting the instrument to the network,
check the network voltage corresponds to the value on the
instrument specification.
The instrument is auxiliary powered (AUX) in range 85...265 VAC / 110 VDC ±15%.
AUX power input

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7.3 RS485 COMMUNICATION PORT
WARNING! Before carrying out connections, check if there is
no voltage/current in the conductor wires. DO NOT CONNECT
conductors under voltage/current.
The RS485 serial communication port allows to manage the instrument
in local or remote mode by PC.
For a local connection, a converter is needed to adapt the PC USB port
to the RS485 network.
The RS485 standard interface allows a multi-point connection. If there
are more than 32 instruments to be connected, insert a signal repeater.
Each repeater can manage up to 32 instruments.
The connection provides a third conductor to the terminal (COM) to ensure the same reference level to all
network devices.
When there are strong electromagnetic disturbances, which may affect communication, a shielded cable (with
twotwistedsignalconductors)shouldbe used. Theterminalresistances(RT=120...150Ω) must be installed on the
converter side and on the last instrument connected along the line. Thanks to these resistances, the reflected
signal along the line is reduced. However, in case of short distances (max 100 m) or low communication speed
(‹9600 bps) there is no need of resistances.
NOTE. The value of each resistance must not be lower than 120 Ω in order to avoid an overload
of line drivers.
The maximum recommended distance for a connection is 1 km at 9600 bps. For longer distances, lower
communication speed (bps), low-attenuation cables or signal repeaters are needed.
Connection to the RS485 network
RS485 port

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7.5 DIGITAL OUTPUT
WARNING! Before carrying out connections, check if there is
no voltage/current in the conductor wires. DO NOT CONNECT
conductors under voltage/current.
The instrument is provided with a passive optoisolated digital output for
pulse emission or alarm. For digital output setup, refer to section 8.13.1.
Digital output

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8. USE AND CONFIGURATION
At first instrument power on, the following pages will be displayed.
Instrument name Firmware release
3 s
Real time values
3 s
The page sequence is the same for the further power on times, except for Real time value page. After Firmware
release page, it will be displayed:
• Home page (if set, refer to section 8.3).
• Last page displayed before switching off (if no Home page is set).
NOTE. At instrument power on, the display is backlighted. After 30 s of instrument keyboard
inactivity, the backlight goes off automatically. Press any key to turn on the backlight again.
8.1 SYMBOLS ON DISPLAY
The display test can be performed, on any page except for Setup pages, by pressing
simultaneously , and buttons for at least 10 s.
SYMBOL MEANING WHERE
Phase sequence status
Correct phase sequence (123/CCW). Measurement pages
Wrong phase sequence (132/CW). Measurement pages
BLINKING
Undefined phase sequence (e.g. 2 phases are
shortcircuited, 1 or more phases are missing). Measurement pages
NOT DISPLAYED Single phase insertion. Measurement pages
Info/status on digital output in Alarm mode
Setup page for digital output in Alarm mode. User setup, page for digital
output in alarm mode
Active alarm for digital output. Measurement pages
Info/status on digital output in Pulse mode
Setup page for digital output in Pulse mode. User setup, page for digital
output in pulse mode
Pulse emission on digital output. Measurement pages
FAST BLINKING Pulse overlapping on digital output. Measurement pages
General warning
Overtaken measurement fullscale. Measurement pages
BLINKING Too high FSA*PT product. Installation setup, during FSA,
PT setup
BLINKING Full memory, data recording is stopped (FILL recording mode). Any page except Setup
BLINKING
Undefined phase sequence (e.g. 2 phases are
shortcircuited, 1 or more phases are missing). Measurement pages

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SYMBOL MEANING WHERE
Clock status
Setup page for date and time. User setup, page for date&time
Info page for date and time. Info, page for date&time
BLINKING Undefined date and time (no clock setup after power on). Any page except Setup
Memory/data recording status
Setup page for data recording. User setup, page for data
recording
Active data recording. Any page except Setup
BLINKING Memory in overlapping (RING recording mode). Any page except Setup
BLINKING Full memory, data recording is stopped (FILL recording mode). Any page except Setup
Setup pages Any page of Setup
Home page
The displayed page is set as Home page. Home page
Communication status
Page for communication parameters. Installation setup, Baud, Par,
Addr pages
Active communication. Any page except Setup
Inductive and capacitive values
Inductive value. Energy counters, power factors,
reactive powers, DPF
Capacitive value. Energy counters, power factors,
reactive powers, DPF
Maximum & minimum values
Maximum value. Real time value pages
Maximum demand (DMD) value. DMD value pages
Minimum value. Real time value pages

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8.2 PAGE STRUCTURE
Up to 6 page loops are available on the the instrument display. Each loop corresponds to a specific type of data
displayed on more pages. Inside each loop it is possible to scroll the available pages. With change the loop
1...6. The loop 6 can be accessed by pressing SET button for at least 4 s. Use or to scroll pages inside each
loop. Special note for Loop 4: the loop 4 can be accessed by pressing for at least 3 s on the Setup? page.
LOOP 1
Real time &
MIN/MAX values
LOOP 2
DMD &
DMD MAX values
LOOP 3
Energy counters
LOOP 4
User setup
LOOP 5
Info
LOOP 6
Installation setup
›4 s
8.3 HOME PAGE
The Home page is a preset page displayed after 2 minutes of instrument keyboard
inactivity. Only measurement pages can be set as Home page.
To set the displayed page as Home, press button for at least 5 s, the symbol
will be shown to indicate that Home page was set. To disable it, on the Home page
press button for at least 5 s, the symbol will disappear.

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8.4 LOOP 1 - REAL TIME VALUES
In this loop, the real time and the corresponding min/max values are displayed according to the set wiring mode.
Scroll the loop pages with or button.
The following pages refer to the instrument with 3 phase, 4 wire, 3 current insertion.
NOTE. The pages with the THD parameters can display “_ _ _ _” instead of values, when the
voltage or current RMS values are lower than the threshold values defined for FFT calculation
(refer to chapter 9).
1 2 3
4 5 6
7 8 9
10 11 12
13 14 15
16 17 18

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19
8.5 MEASUREMENT OVERFLOW
According to EN 61010-2-030, in case of too high value supplied to the device, the
display must inform the user precisely that it is a dangerous overflow (OVF) situation.
When an overflow condition occurs, for the relative parameter “----” and symbol
are blinking on display. Max limit values for voltages and currents over which OVF
indication occurs:
Max limit values
V (Line-Neutral) 300 VRMS
A (Line) 700 A > with 500 A scale
5600 A > with 4000 A scale
28000 A > with 20000 A scale
Theoverflowconditioncanbedetectedalsoin MODBUS protocol,byreadingthe $201C register. This registergives
the possibility to know if the overflow occurs, with no indication on the parameters involved in this condition.
8.6 REAL TIME MIN/MAX VALUES
To show the maximum values of the displayed real time parameters (only voltage
and current values), press and buttons simultaneously for at least 2 s. The “
” symbol will start to blink and the maximum values will be displayed for about 6 s.
Minimum values are available only for system powers. To show the minimum values
of the displayed system powers, press and buttons simultaneously for at least
2 s. The “ ” symbol will start to blink and the minimum values will be displayed for
about 6 s.

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8.7 REAL TIME PARAMETER TABLE
The following table shows the parameters available according to the instrument model and the set wiring
mode. The column “DISPLAY PAGE” shows the number of the corresponding device page shown in section 8.4.
PARAMETER DISPLAY
PAGE
MAX ()
VALUE
MIN ()
VALUE
WIRING MODES (=available)
3ph, 4w, 3c 3ph, 3w, 3c 3ph, 3w, 2c 1phase
V1 • Phase 1-N voltage 1   
V2 • Phase 2-N voltage 1  
V3 • Phase 3-N voltage 1  
V12 • Line 12 voltage 2    
V23 • Line 23 voltage 2    
V31 • Line 31 voltage 2    
V∑ • System voltage 4    
A1 • Phase 1 current 3  
A2 • Phase 2 current 3    
A3 • Phase 3 current 3    
AN • Neutral current * 5  
A∑ • System current 5    
P1 • Phase 1 active power 6  (+/-)  
P2 • Phase 2 active power 6  (+/-) 
P3 • Phase 3 active power 6  (+/-) 
P∑ • System active power 9  (+/-)    
S1 • Phase 1 apparent power 7  (+/-)  
S2 • Phase 2 apparent power 7  (+/-) 
S3 • Phase 3 apparent power 7  (+/-) 
S∑ • System apparent power 9  (+/-)    
Q1 • Phase 1 reactive power 8  (+/-)  
Q2 • Phase 2 reactive power 8  (+/-) 
Q3 • Phase 3 reactive power 8  (+/-) 
Q∑ • System reactive power 9  (+/-)    
PF1 • Phase 1 power factor 10  (+/-)  
PF2 • Phase 2 power factor 10  (+/-) 
PF3 • Phase 3 power factor 10  (+/-) 
PF∑ • System power factor 12  (+/-) 
TANØ1 • Phase 1 tangent Ø 11  (+/-)  
TANØ2 • Phase 2 tangent Ø 11  (+/-) 
TANØ3 • Phase 3 tangent Ø 11  (+/-) 
TANØ∑ • System tangent Ø 12  (+/-) 
THDV1 • Phase 1-N voltage THD 14   
THDV2 • Phase 2-N voltage THD 14  
THDV3 • Phase 3-N voltage THD 14  
THDV12 • Line 12 voltage THD 15    
THDV23 • Line 23 voltage THD 15    
THDV31 • Line 31 voltage THD 15    
THDA1 • Phase 1 current THD 16  
THDA2 • Phase 2 current THD 16   
THDA3 • Phase 3 current THD 16    
THDAN • Neutral current THD* 17  
F • Frequency 4   
* The neutral current and the derivative parameters (AN, THDAN) are not available if the set FSA value is different for each phase.

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8.8 LOOP 2 - DMD VALUES
Inthisloop,thedemandvalues(DMD)andthe correspondingmaxvaluesaredisplayedaccording tothe instrument
model and the set wiring mode. The demand values are calculated according to the set DMD calculation mode
and integration time (refer to section 8.13.2).
Scroll the loop pages with or button.
The following pages refer to the instrument with 3 phase, 4 wire, 3 current insertion.
1 2 3
4 5 6
8.9 DMD MAX VALUE
To show the maximum values of the displayed DMD parameters (except for
power balance values), press and buttons simultaneously for at least 2 s.
The“ ” symbolwillstarttoblink andthemaximum valueswill be displayedforabout 6s.
8.10 DMD PARAMETER TABLE
The following table shows the parameters available according to the instrument model and the set wiring mode. The
column “DISPLAY PAGE” shows the number of the corresponding device page shown in section 8.8.
In 1 phase insertion, BALANCE values are resulting from the difference between the phase 1 imported power
DMD and the phase 1 exported power DMD (L1imp - L1exp).
PARAMETER DISPLAY
PAGE
MAX ()
VALUE
WIRING MODES (=available)
3ph, 4w, 3c 3ph, 3w, 3c 3ph, 3w, 2c 1phase
+P1DMD • Phase 1 imported active power DMD 3   
-P1DMD • Phase 1 exported active power DMD 4   
+P2DMD • Phase 2 imported active power DMD 3  
-P2DMD • Phase 2 exported active power DMD 4  
+P3DMD • Phase 3 imported active power DMD 3  
-P3DMD • Phase 3 exported active power DMD 4  
+P∑DMD • System imported active power DMD 9    
-P∑DMD • System exported active power DMD 10    
+Q1DMD • Phase 1 imported reactive power DMD 7   
-Q1DMD • Phase 1 exported reactive power DMD 8   
+Q2DMD • Phase 2 imported reactive power DMD 7  
-Q2DMD • Phase 2 exported reactive power DMD 8  
+Q3DMD • Phase 3 imported reactive power DMD 7  
-Q3DMD • Phase 3 exported reactive power DMD 8  
+Q∑DMD • System imported reactive power DMD 9    
-Q∑DMD • System exported reactive power DMD 10    