CARLO GAVAZZI EM530 User manual

EM530/EM540
Energy analyzer for three-phase and two-phase systems
23/11/2022
USER MANUAL

Contents
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This manual 3
EM530/EM540 4
Introduction 4
Description 4
Available versions 6
UCS (Universal Configuration Software) 7
Use 8
Interface 8
Introduction 8
SETTINGS menu display 8
INFO menu display 8
RESET menu display 8
Measurement page display 8
Information and warnings 9
Working with EM530/EM540 10
Working with the measurement pages 10
Working with the SETTINGS menu 10
Working with the INFO menu 10
Working with the RESET menu 10
Commissioning 11
Preliminary settings 11
MID SETTINGS menu 11
QUICK SETUP menu 11
Menu description 13
Measurement pages 13
SETTINGS menu 14
INFO menu 15
RESET menu 17
Input, output and communication 18
Digital input 18
Digital output (version O1) 18
Modbus RTU port (version S1) 18
M-Bus port (version M1) 18
Essential information 19
Alarms 19
Introduction 19
Variables 19
Alarm types 19
DMD values 20
Average value calculation (dmd) 20
Integration interval 20
Example 20
LCD display 20
Home page 20
Backlight 20
Screensaver 21
Page filter 21
Restoring the factory settings 22
Restoring the settings using the RESET menu 22
Restoring the MID menu using the RESET menu 23
WIRING CHECK function 24
Introduction 24
Display check 24
Check from UCS software 24
Virtual correction from UCS software or UCS Mobile 24
Tariff management 24
Tariff management via digital input 24
Tariff management Modbus RTU 24
Maintenance and disposal 25
Troubleshooting 25
Alarms 25
Communication problems 25
Display problem 25
Download 26
Cleaning 26
Responsibility for disposal 26

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This manual
Information property
Copyright © 2022, CARLO GAVAZZI Controls SpA
All rights reserved in all countries.
CARLO GAVAZZI Controls SpA reserves the right to apply modifications or make improvements to the relative documentation
without the obligation of advance notice.
Safety messages
The following section describes the warnings related to user and device safety included in this document:
NOTICE: indicates obligations that if not observed may lead to damage to the device.
CAUTION! Indicates a risky situation which, if not avoided, may cause data loss.
IMPORTANT: provides essential information on completing the task that should not be neglected.
General warnings
This manual is an integral part of the product and accompanies it for its entire working life. It should be consulted for all
situations tied to configuration, use and maintenance. For this reason, it should always be accessible to operators.
NOTICE: no one is authorized to open the analyzer. This operation is reserved exclusively for CARLO GAVAZZI technical
service personnel.
Protection may be impaired if the instrument is used in a manner not specified by the manufacturer.
Service and warranty
In the event of malfunction, fault, requests for information or to purchase accessory modules, contact the CARLO GAVAZZI
branch or distributor in your country.
Installation and use of analyzers other than those indicated in the provided instructions void the warranty.

EM530/EM540
Introduction
EM530 is an energy analyzer connected through 5 A current transformers, for two- and three-phase systems up to 415 V L-L.
EM540 is an energy analyzer for direct connection up to 65 A, for two- and three-phase systems up to 415 V L-L.
In addition to a digital input, the unit can be equipped, according to the model, with a static output (pulse or alarm), a Modbus RTU
communication port or an M-Bus communication port.
Description
Figure 1 EM530- Front
Area Description
AVoltage inputs
BDisplay
CLED
DBrowsing and configuration buttons
EDigital input, digital output and communication connections
FMID seal housings
GCurrent inputs
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Figure 2 EM540- Front
Area Description
AVoltage/current inputs
BDisplay
CLED
DBrowsing and configuration buttons
EDigital input, digital output and communication connections
FMID seal housings
Figure 3 EM530/EM540 - Back
Area Description
ADIN rail mounting bracket

Available versions
Part number Connection Output MID approval cULus approval
EM530DINAV23XO1X Via CT (5A secondary output) Digital output x
EM530DINAV23XS1X Via CT (5A secondary output) RS485 Modbus
RTU
x
EM530DINAV23XM1X Via CT (5A secondary output) M-Bus x
EM530DINAV23XO1PFA
EM530DINAV23XO1PFB
EM530DINAV23XO1PFC
Via CT (5A secondary output) Digital output x
EM530DINAV23XS1PFA
EM530DINAV23XS1PFB
EM530DINAV23XS1PFC
Via CT (5A secondary output) RS485 Modbus
RTU
x
EM530DINAV23XM1PFA
EM530DINAV23XM1PFB
EM530DINAV23XM1PFC
Via CT (5A secondary output) M-Bus x
Part number Connection Output MID approval cULus approval
EM540DINAV23XO1X Direct connection up to 65 A Digital output x
EM540DINAV23XS1X Direct connection up to 65 A RS485 Modbus RTU x
EM540DINAV23XM1X Direct connection up to 65 A M-Bus x
EM540DINAV23XO1PFA
EM540DINAV23XO1PFB
EM540DINAV23XO1PFC
Direct connection up to 65 A Digital output x
EM540DINAV23XS1PFA
EM540DINAV23XS1PFB
EM540DINAV23XS1PFC
Direct connection up to 65 A RS485 Modbus RTU x
EM540DINAV23XM1PFA
EM540DINAV23XM1PFB
EM540DINAV23XM1PFC
Direct connection up to 65 A M-Bus x
PFA models
Easy connection function: irrespective of the current direction, the power always has a plus sign and contributes to increase the
positive energy meter. The negative energy meter is not available.
PFB models
For each measuring time interval, the individual phase energies with a plus sign are summed to increase the positive energy meter
(kWh+), while the others increase the negative one (kWh-).
Example:
P L1= +2 kW, P L2= +2 kW, P L3= -3 kW
Integration time = 1 hour
kWh+ = (2+2) x1h = 4 kWh
kWh- = 3 x 1h= 3kWh
PFC models
For every measuring interval time, the energies of the single phases are summed; according to the sign of the result, the positive
(kWh+) or negative totalizer (kWh-) is increased.
Example:
P L1= +2 kW, P L2= +2 kW, P L3= -3 kW
Integration time = 1 hour
kWh+=(+2+2-3)x1h=(+1)x1h=1 kWh
kWh+=0 kWh
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UCS (Universal Configuration Software)
UCS is available in desktop and mobile versions.
It may connect to EM530 or EM540 via RS485 (RTU protocol, desktop version only).
UCS allows to:
lset up the unit (online or offline);
ldisplay the system state for diagnostic and setup verification purposes
Overview of the UCS functions:
lSetting up the system with energy meter connected (online setup)
lDefining the setup with energy non connected, then applying it later (offline setup)
lDisplaying the main measurements
lDisplaying the state of inputs and outputs
lDisplaying the state of the alarms
lRecording the measurements of selected variables
lCheck connection and correct wiring errors

Use
Interface
Introduction
EM530/EM540 is organized into two menus:
lMeasurement pages: pages allowing to display the energy meters and the other electrical variables
lMain menu, divided into three sub-menus:
o» SETTINGS: pages allowing to set the parameters
o» INFO: pages displaying general information and the set parameters
o» RESET: pages allowing to reset the partial counters and the dmd calculation, or to restore the factory settings
SETTINGS menu display
Part Description
ASub-menu title, see “SETTINGS menu”
BParameter
INFO menu display
Part Description
ASub-menu title, see “INFO menu”
BParameter
RESET menu display
Part Description
AMenu title
BSub-menu title, see “RESET menu”
CSelection (YES/NO)
Measurement page display
Part Description
AMeasured values/data
BUnit of measurement
Note: for the “power factor” the unit indicates
whether the value is inductive (L) or capacitive (C)
CInformation and diagnostics
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Information and warnings
Symbol Description
ALARM (blinking icon): the value of the variable has exceeded the threshold set.
WIRING ERROR (steady icons): a wiring fault has been detected, the control operates correctly if the selected
system is 3Pn and for each phase:
lthe power is positive (imported),
lPF > 0.7 L or PF > 0.96 C. (Only in EM530)
Serial communication state (reception / transmission)
The association of the phase terminal or the direction of the currents have been modified via UCS software to
correct virtually a wiring fault. To view the current setup of the terminals, access the info screens ( MENU > INFO >
TERMINAL).

Working with EM530/EM540
Working with the measurement pages
Operation Button
Scroll through the pages
Enter the Main menu
Working with the SETTINGS menu
Operation Button
Scroll through the menu, edit the parameters
Enter the sub-menu to edit and confirm the operation
Working with the INFO menu
Operation Button
Scroll through the menu
Return to the main menu
Working with the RESET menu
Operation Button
Scroll through the menu
Enter the sub-menu to edit and confirm the operation
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Commissioning
Preliminary settings
At switch-on, the device displays two preliminary setting menus:
lMID SETTINGS, for EM530, MID models only
lQUICK SETUP
MID SETTINGS menu
This procedure, only available in MID models, allows to program the current transformer ratio (CT ratio).
QUICK SETUP menu
This procedure is available when the instrument is switched on for the first time.
Note: the available parameters depend on the model.
In the “QUICK SETUP?” starting page
Select... To...
Go run the QUICK SETUP procedure
no skip the procedure and no longer display the QUICK SETUP menu
LAtEr skip the procedure and display the QUICK SETUP menu at the next switch-on
S1 models

M1 models
O1 models
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Menu description
Measurement pages
The displayed pages depend on the selected system.
Page Displayed measurements Description
1kWh+ TOT
kW
Imported active energy (TOTAL)
System active power
2kWh- TOT
kW
Exported active energy (TOTAL)
System active power
3
kWh+ TOT
kWh+ PAR
kW
Imported active energy (TOTAL)
Imported active energy (PARTIAL)
System active power
4
kWh+ TOT
kW
PF
Imported active energy (TOTAL)
System active power
System power factor
5
VLN
VLL
Hz
System line-line voltage
System line-neutral voltage
Frequency
6
kWh+ TOT
kW
kW sys DMD P
Imported active energy (TOTAL)
System active power
Peak demand System active power
7kvarh TOT
kvar
Imported reactive energy (TOTAL)
System reactive power
8kvarh- TOT
kvar
Exported reactive energy (TOTAL)
System reactive power
9
kVAh TOT
kW
kVA
Apparent energy (TOTAL)
System active power
System apparent power
10
kWh TOT
h TOT
kW
Imported active energy (TOTAL)
Run hour meter (kWh+) TOTAL
System active power
11
kWh- TOT
h- TOT
kW
Exported active energy (TOTAL)
Run hour meter (kWh-) TOTAL
System active power
12
kWh PAR
h PAR
kW
Imported active energy (PARTIAL)
Run hour meter (kWh+) PARTIAL
System active power
13
kWh- PAR
h- PAR
kW
Imported active energy (PARTIAL)
Run hour meter (kWh-) PARTIAL
System active power
14
kWh+ TOT
kWh T1
kW
Imported active energy (TOTAL)
Imported active energy tariff 1
System active power
15
kWh+ TOT
kWh T2
kW
Imported active energy (TOTAL)
Imported active energy tariff 2
System active power
16 Thd
Ln
THD of phase 1 voltage
THD of phase 2 voltage
THD of phase 3 voltage
17 Thd
LL
THD of phase 1-phase2 voltage
THD of phase2-phase3 voltage
THD of phase3-phase1 voltage
18 Thd
A
THD of phase 1 current
THD of phase 2 current
THD of phase 3 current
19 nEutrAL
CurrEnt Neutral current

Page Displayed measurements Description
20
L1 kVA
L2 kVA
L3 kVA
Phase 1 apparent power
Phase 2 apparent power
Phase 3 apparent power
21
L1 kvar
L2 kvar
L3 kvar
Phase 1 reactive power
Phase 2 reactive power
Phase 3 reactive power
22
L1 PF
L2 PF
L3 PF
Phase 1 power factor
Phase 2 power factor
Phase 3 power factor
23
L1-N V
L2-N V
L3-N V
Phase 1 voltage
Phase 2 voltage
Phase 3 voltage
24
L1-2 V
L2-3 V
L3-1 V
Phase 1-phase 2 voltage
Phase 2-phase 3 voltage
Phase 3-phase 1 voltage
25
L1 A
L2 A
L3 A
Phase 1 current
Phase 2 current
Phase 3 current
26
L1 kW
L2 kW
L3 kW
Phase 1 active power
Phase 2 active power
Phase 3 active power
27
L1 kWh TOT
L2 kWh TOT
L3 kWh TOT
Active energy phase 1
Active energy phase 2
Active energy phase 3
SETTINGS menu
This menu allows to set the parameters.
Page title Sub-menu Description Values Default values Note
SYSTEM - System 3P+N
3P
2P
3P+N
CT RAT - (CT) current transformer ratio 1 to 2000 1 Non-MID,
AV5 models
only
MEASurE - Measurement mode A
B
C
A Non-MID
models only
dMd int - DMD interval 1 min
5 min
10 min
15 min
20 min
30 min
60 min
15 min
inPut Function Digital input function Tariff: tariff
management
Status: remote status
P reset: partial meters
reset
P StArt: partial meter
start/stop
Status
RS485 AddrESS Address 1 to 247 1 S1 models
only
PArity Parity NO/EVEN no
bAudrAtE Baudrate 9.6 kbps
19.2 kbps
38.4 kbps
57.6 kbps
115.2 kbps
9.6 kbps
StoP bit Stop bit 1 or 2 1
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Page title Sub-menu Description Values Default values Note
M bus Pri Add Primary address 1 to 250 0 M1 models
only
bAudrAtE Baudrate 0.3 kbps
2.4 kbps
9.6 kbps
2.4 kbps
Output Function Function Off
PuLSE (kWh+): pulse
output
linked to kWh+
PuLSE (kWh-): pulse
output
linked to kWh-
ALArM: linked to alarm
status
PuLSE (kWh+) O1 models
only
durAtion Pulse duration 30 ms
100 m
30 ms
PuLSES Pulse weight (pulses/kWh) 0.1/1/10/100/500/1000 1000
StAtuS Output status No (normally open)
Nc (normally closed)
ALARM EnAbLE Enable YES/no no
VAriAbLE Monitored variable kW
A
V L-N
V L-L
PF
Kvar
kVA
kW
SEt 1 Activation threshold -15000 to 15000 0.00
Set 2 Deactivation threshold -15000 to 15000 0.00
dELAY Activation delay 0 to 3600 s 0
dISPLAY LiGHt Timer for backlight switch-off On: always on
1 min
2 min
5 min
10 min
15 min
30 min
60 min
oFF: always off
On
SC SAVEr Screensaver enabling, see
"Screensaver" on page 21
oFF
SLidE: slideshow
home: homepage
home Non-MID
models only
HOME homepage 1 to 27 1 Non-MID
models only
PAGES Measurement page filter
enabling, see "Page filter" on
page 21
ALL
FiLtEr
OFF
WirinG Wiring check enabling on/OFF on
PASS Password enabling for the
SETTINGS and RESET menu
0 (not protected) to
9999
0 (NOT
PROTECTED)
End - Exit - -
INFO menu
This menu allows to display the set parameters.
Page Page title Description Notes
1 YEAr Production year
2 SEriAL n Serial number
3 FW REV FW revision

Page Page title Description Notes
4 Led PuLS LED pulse weight
5 SyStEM Electrical system
6 Ct rAtio CT ratio EM530 only
7 MEAsurE Measurement type
8 dMd int Demand calculation interval
9Input
Function Digital input function
10 rS 485
AddrESS Address S1 versions only
11 rS485
bAudrAtE Baudrate (kbps) S1 versions only
12 rS485
PArity Parity S1 versions only
13 rS485
StoP bit Stop bit S1 versions only
14 M buS
PriM Add M-Bus primary address M1 versions only
15 M bus
bAudrAte M-Bus baudrate M1 versions only
16 M bus
SEC Add M-Bus secondary address M1 versions only
17 output
Function Digital output function O1 versions only
18 Output
StAtuS Current output status O1 versions only
19 output
duration Pulse output duration O1 versions only
20 Output
PuLSE Output pulse weight O1 versions only
21 ALArM
EnAbLe Alarm enabling
22 ALArM
VAriAbLE Linked variable
23 ALArM
SEt 1 Alarm activation set point
24 ALArM
SEt 2 Alarm deactivation set point
25 ALArM
dELAY Alarm activation delay
26 display
LIGHt Backlight timer
27 display
SC SAVEr Screensaver type
28 display
home Home page
29 display
PAGES Page filter enabling
30 display
WirinG Wiring check enabling
31 tAriFF Tariff management
32 CHECKSuM Firmware checksum
33 WiRinG Wiring check code to correct errors
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Page Page title Description Notes
34 terminal Screw terminal phase assignment (press enter to see)
35 On time Total working time
36 End Exit
RESET menu
This menu allows to reset the following settings:
Page Page title Description
1 PArtiAL It resets the partial meters
2 DMD It resets the dmd calculation
3 tAriFF It restores the factory settings
4 total It resets the total meters (only non MID)
5 FACtorY It resets the device to factory settings. In case of MID models all parameters are
restored except CT ratio.
6 MID ReS
In MID models, it resets the CT ratio settings re-enabling first programming
menu. This option is available only if the value of the total active energy is below
1 kWh.
7 End Exit

Input, output and communication
Digital input
The digital input can perform four functions:
Function Description Parameters
Tariff management Digital input used to manage the tariff
Digital input status Tariff
Open Tariff 1
Closed Tariff 2
-
Remote status Digital input is used to check the status via Modbus or M-Bus.
Digital input status Register 300h
Open 0
Closed 1
-
Partial meters start/stop Digital input is used to enable/disable the reset of partial meters
Digital input status Partial meter
Open Disabled (in pause)
Closed Enabled
-
Partial meter reset Digital input is used to enable/disable the increasing of partial meters
Digital input status Action
Open No action
Closed After 3 seconds, reset partial meters
-
Digital output (version O1)
The digital output can perform two functions:
Function Description Parameters
Alarm Output associated with the alarm Output state when no alarm is active
Pulse output Pulse transmission output for imported active energy consumptions. lLinked energy (kWh+, kWh-)
lPulse weight
lPulse duration
Modbus RTU port (version S1)
Modbus RTU communication port is used to transmit data to a Modbus master (Carlo Gavazzi UWP3.0 or any SCADA, PLC, BMS,
etc).
For further information about Modbus RTU communication refer to the communication protocol.
M-Bus port (version M1)
M-Bus communication port is used to transmit data to a M-Bus master (Carlo Gavazzi SIU-MBM or any third party M-Bus master).
For further information about M-Bus communication refer to the communication protocol.
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Essential information
Alarms
Introduction
EM500 manages a measured variable alarm. To set the alarm, define:
lthe variable to be monitored (VARIABLE)
lalarm activation threshold value (SET POINT 1)
lalarm deactivation threshold value (SET POINT 2)
lalarm activation delay (ACTIVATION DELAY)
Variables
The unit can monitor one of the following variables:
lsystem active power
lsystem apparent power
lsystem reactive power
lsystem power factor
lphase-neutral voltage (OR logic)
lphase-phase voltage (OR logic)
lcurrent (OR logic)
Note: if you select a current or a voltage, the analyzer simultaneously monitors all the phases available in the set measurement
system and triggers the alarm when at least one of the phases is in alarm (OR logic)
Alarm types
Up alarm (Set point 1 ≥ Set point 2)
The alarm activates when the monitored variable exceeds the Set 1 value for a time equal to the activation delay (Delay) and
deactivates when the values drops below Set 2.
(s)
ON
Set 1
Set 2
Delay

Down alarm (Set point 1 < Set point 2)
The alarm activates when the monitored variable drops below the Set 1 value for a time equal to the activation delay (Delay) and
deactivates when it exceeds Set 2.
(s)
ON
Set 2
Set 1
Delay
DMD values
Average value calculation (dmd)
EM530/EM540 calculates the average values of the electrical variables within a set integration interval (15 min by default).
Integration interval
The integration interval starts at switch-on or when the reset command is issued. The first value is displayed at the end of the first
integration interval.
Example
The following is a sample integration:
lreset at 10:13:07
lset integration time: 15 min.
The first value displayed at 10:28:07 refers to the interval from 10:13:07 to 10:28:07.
LCD display
Home page
The unit may display the default measurement pages after no operation has been performed for five minutes, if the screensaver is
enabled and the screensaver type is as “Home page” (default value).
Notes: if you select a page that is not available in the set system, the unit displays as its home page the first available page. In MID
models the home page cannot be changed and displays the active energy meter.
Backlight
EM530/EM540 is equipped with a backlight system. You can set whether the backlight shall always be ON or whether it should
automatically switch off after a given interval has elapsed since a button was pressed (1 to 60 minutes).
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