CARLO GAVAZZI WM15 User manual

WM15
Power analyzer for three-phase systems
16/05/2022
INSTRUCTION MANUAL

Contents
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This manual 3
Use 4
Interface 4
Introduction 4
SETTINGS menu display 4
INFO menu display 4
RESET menu display 4
Measurement page display 4
Information and warnings 5
Commissioning 6
Preliminary settings 6
MID SETTINGS menu 6
QUICK SETUP menu 6
WIRING CHECK menu 7
Working with WM15 9
Working with the measurement pages 9
Working with the SETTINGS menu 9
Working with the INFO menu 9
Working with the RESET menu 9
Menu description 10
Measurement pages 10
SETTINGS menu 11
INFO menu 12
RESET menu 13
Input, output and communication 14
Digital output 14
Modbus RTU port (OS version) 14
M-Bus port (OM version) 14
Optical port and OptoProg 14
Essential information 15
dmd values 15
Average value calculation (dmd) 15
Integration interval 15
Example 15
Alarms 15
Introduction 15
Variables 15
Alarm types 16
LCD display 17
Home page 17
Backlight 17
Screensaver 17
Page filter 17
Restoring the factory settings 17
Restoring the settings using the RESET menu 17
Restoring the settings using the reset button 17
WIRING CHECK function 17
Introduction 17
Display check 18
Check from UCS software or UCS Mobile 18
Virtual correction from UCS software or UCS Mobile 18
Maintenance and disposal 19
Troubleshooting 19
Alarms 19
Communication problems 19
Display problem 19
Download 19
Cleaning 20
Responsibility for disposal 20

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This manual
Information property
Copyright © 2021, 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 and removal of the MABC module void the
warranty.
Download
This manual www.productselection.net/MANUALS/UK/WM15_im_use.pdf
Installation instructions – WM15 www.productselection.net/MANUALS/UK/WM15_im_inst.pdf
UCS software www.productselection.net/Download/UK/ucs.zip

Use
Interface
Introduction
WM15 is organized into two menus:
lMain menu, divided into three sub-menus:
l» SETTINGS: pages allowing to set the parameters
l» INFO: pages displaying general information and the set parameters
l» RESET: pages allowing to reset the partial counters and the dmd calculation, or to restore the factory settings
lMeasurement pages: pages allowing to display the meters and the other electrical variables
SETTINGS menu display
Part Description
AMenu title
BSub-menu title, see "SETTINGS menu" on
page11
CParameter
DCurrent parameter information
INFO menu display
Part Description
AMenu title
BSub-menu title, see "INFO menu" on page12
CParameter
DCurrent parameter information
RESET menu display
Part Description
AMenu title
BSub-menu title, see "RESET menu" on
page13
CYES/NO
Measurement page display
Part Description
AVariable type
Bmeasured values/data
Cunit of measurement
Note: for the “power factor” the unit indicates
whether the value is inductive (L) or capacitive (C)
DInformation and diagnostics
Note: all the variables calculated by the meter are referred to
the primary current of the current transformer.
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Information and warnings
Symbol Description
Alarm icon:
lblinking icon + ALARM ON: alarm active
lsteadily ON icon + WIRING: wiring error
Serial communication state (reception / transmission)
Virtual wiring correction: the terminal-phase association was modified by UCS (only non MID models)
Use

Commissioning
Preliminary settings
At switch-on, the device displays two preliminary setting menus:
lMID SETTINGS, for MID models only
lQUICK SETUP
lCHECK WIRING
MID SETTINGS menu
This procedure, only available in MID models, allows to program the current transformer ratio (CT ratio).
Note: after the first setting the CT ratio can be changed again as long as the meter has not reached 1.00 kWh.
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...
YES run the QUICK SETUP procedure
NO skip the procedure and no longer display the QUICK SETUP menu
NEXT TIME skip the procedure and display the QUICK SETUP menu at the next switch-on
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M-Bus models (OM)
P/S:
M-BUS PRI. ADDR.
0
1 ... 250
M-BUS BAUDRATE
0.3
0.3 / 2.4 / 9.6
WIRING CHECK menu
This procedure is available if the set system is 3P+N, and allows to check and correct the connections, see "WIRING CHECK
function" on page17.
In the ““CHECK WIRING?” starting page
Select... To...
YES run the WIRING CHECK procedure
NO skip the procedure and no longer display the WIRING CHECK menu
NEXT TIME skip the procedure and display the WIRING CHECK menu at the next switch-on
In the “SHOW AGAIN?” end page
Select... To... And...
YES correct the error detected by WM15.
Actions:
lswitch off the instrument
lcorrect the wiring (follow the graphical
indications)
display the WIRING CHECK menu again for
the final check
NO No longer display the menu (WM15 has
detected no wiring errors)
Commissioning

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Indications like those described below, which suggest a complete rewiring of the connections, can appear when the power factor is
out of the allowed range because the connected load is inductive with PF < 0.7 L or capacitive with PF < 0.96 C. In those cases,
check the sign of the active and reactive powers to apply the proper corrections, if needed.
Commissioning

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Working with WM15
Working with the measurement pages
Operation Button
Return to the Home page
Scroll through the pages /
Enter the Main menu
Working with the SETTINGS menu
Operation Button
Return/Cancel the operation
Scroll through the menu, edit the parameters /
Enter the sub-menu to edit and confirm the operation
Working with the INFO menu
Operation Button
Return to the main menu
Scroll through the menu /
Working with the RESET menu
Operation Button
Return/Cancel the operation
Scroll through the menu /
Enter the sub-menu to edit and confirm the operation

Menu description
Measurement pages
The displayed pages depend on the selected system. All the variables calculated by the meter are referred to the primary current
of the current transformer.
Page Displayed measurements Description
1
TOT kWh
kW
PF
Imported active energy (TOTAL)
System active power
System power factor
2
TOT kWh
TOT kvarh+
TOT kvarh-
Imported active energy (TOTAL)
Imported reactive energy (TOTAL)
Exported reactive energy (TOTAL)
3
TOT kWh
TOT kVAh
TOT hh:mm+
Imported active energy (TOTAL)
Apparent energy (TOTAL)
Positive energy run hour meter* (TOTAL)
*NOTE: it increases when the active system power is positive.
4
kWh- TOT
kVAh TOT
h- TOT
Exported active energy (TOTAL)
Apparent energy (TOTAL)
Exported energy run hour meter* (TOTAL)
*NOTE: it increases when the active system power is positive.
5
L1 kWh
L2 kWh
L3 kWh
Active energy phase 1
Active energy phase 2
Active energy phase 3
6
PAR kWh
kW sys
PF sys
Imported active energy (PARTIAL)
System active power
System power factor
7
PAR kWh
PAR kvarh+
PAR kvarh-
Imported active energy (PARTIAL)
Imported reactive energy (PARTIAL)
Exported reactive energy (PARTIAL)
8
PAR kWh+
PAR kVAh
PAR hh:mm+
Imported active energy (PARTIAL)
Apparent energy (PARTIAL)
Imported energy run hour meter* (PARTIAL)
*NOTE: it increases when the active system power is positive.
9
PAR kWh-
PAR kVAh
PAR hh:mm-
Exported active energy (PARTIAL)
Apparent energy (PARTIAL)
Exported energy run hour meter* (PARTIAL)
*NOTE: it increases when the active system power is positive.
10
kW sys
kvar sys
kVA sys
System active power
System reactive power
System apparent power
11
kW sys
kW sys DMD
kW sys DMD MAX
System active power
System active power DMD
System active power MAX DMD
12
kVA sys
kVA sys DMD
kVA sys DMD max
System apparent power
System apparent power DMD
System apparent power MAX DMD
13
L1 kW
L2 kW
L3 kW
Phase 1 active power
Phase 2 active power
Phase 3 active power
14
L1 kvar
L2 kvar
L3 kvar
Phase 1 reactive power
Phase 2 reactive power
Phase 3 reactive power
15
L1 kVA
L2 kVA
L3 kVA
Phase 1 apparent power
Phase 2 apparent power
Phase 3 apparent power
16
L1 PF
L2 PF
L3 PF
Phase 1 power factor
Phase 2 power factor
Phase 3 power factor
17
L-N V sys
L-L V sys
Hz sys
System line-neutral voltage
System line-line voltage
Frequency
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Page Displayed measurements Description
18
L1 A
L2 A
L3 A
Phase 1 current
Phase 2 current
Phase 3 current
19
L1 A DMD
L2 A DMD
L3 A DMD
Phase 1 DMD current
Phase 2 DMD current
Phase 3 DMD current
20
L1 A DMD max
L2 A DMD max
L3 A DMD max
Phase 1 current DMD MAX
Phase 2 current DMD MAX
Phase 3 current DMD MAX
21
L1-N V
L2-N V
L3-N V
Phase 1 voltage
Phase 2 voltage
Phase 3 voltage
22
L1-2 V
L2-3 V
L3-1 V
Phase 1-phase 2 voltage
Phase 2-phase 3 voltage
Phase 3-phase 1 voltage
23
L1-N THD V %
L2-N THD V %
L3-N THD V %
THD of phase 1 voltage
THD of phase 2 voltage
THD of phase 3 voltage
24
L1-2 THD V %
L2-3 THD V %
L3-1 THD V %
THD of phase 1-phase2 voltage
THD of phase2-phase3 voltage
THD of phase3-phase1 voltage
25
L1 THD I %
L2 THD I %
L3 THD I %
THD of phase 1 current
THD of phase 2 current
THD of phase 3 current
26
V L-L sys
L1 A
L2 A
L3 A
System Phase-phase voltage
Phase 1 current (bar graph)
Phase 2 current (bar graph)
Phase 3 current (bar graph)
Note: pages 1, 10, 13, 16, 17, 21, 22 and 26 are included in the default filter; see "Page filter" on page17.
Note: total imported active energy (kWh TOT) is the only MID certified meter.
SETTINGS menu
This menu allows to set the parameters.
Page title Sub-menu Description Values Default values
SYSTEM - System 3P+N
3P
2P
1P
Note: in MID models only 3P+N and 3P systems are available.
The selection of the different systems (3P + N or 3P) has no
effect on the measurement and therefore the value of the MID
meters is not affected.
3P+N
CT RATIO* - (CT) current
transformer ratio
1.0 to 2000 1.0
DMD
INTERVAL
- dmd interval 1 to 60 min 15 min
RS485 ADDRESS Address 1 to 247 1
BAUDRATE Baudrate 9.6 to 115.2 kbps 9.6 kbps
PARITY Parity NO/EVEN NO
M-BUS PRIMARY
ADDRESS
Primary address 1...250 0
BAUDRATE Baudrate 0.3 / 2.4 / 9.6 kbps 2.4 kbps
Menu description

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Page title Sub-menu Description Values Default values
ALARM ENABLE Enable YES/NO NO
VARIABLE Monitored variable kW
kVA
kvar
PF
A
V L-N
V L-L
kW
SET POINT 1 Activation
threshold
-15000 to 15000 0.00
SET POINT 2 Deactivation
threshold
-15000 to 15000 0.00
ACTIVATION
DELAY
Activation delay 0 to 3600 s 0
DIGITAL
OUTPUT
FUNCTION Function DISABLED
ALARM
PULSE
DISABLED
OUTPUT STATUS
(ALARM)
Output state NO (normally open)
NC (normally closed)
NO
PULSE WEIGHT Pulses weight 0.001 to 10 kWh/pulse 1
PULSE
DURATION
Pulse duration 30/100 ms 30 ms
DISPLAY BACKLIGHT TIME Timer for backlight
switch-off
ALWAYS ON
1 min
2 min
5 min
10 min
20 min
30 min
60 min
ALWAYS ON
SCREENSAVER* Screensaver
enabling, see
“Screensaver” on
page 20
ON/OFF ON
PAGE FILTER Measurement
page filter
enabling, see
“Page filter” on
page 20
ON/OFF OFF
WIRING CHECK Icon enabling ON/OFF ON
PASSWORD Password
enabling for the
SETTINGS and
RESET menu
0000 (not protected) to 9999 0000 (NOT
PROTECTED)
EXIT - Exit - -
*Note: non MID models only. On MID models after the first setting, the CT ratio can be changed again as long as the meter has not
reached 1.00 kWh.
INFO menu
This menu allows to display the set parameters.
Page Page title Description
1 WIRING CHECK Display of wiring check icon enabled/disabled
2 SYSTEM System type
3 CT RATIO (CT) current transformer ratio
4 LED PULSE Pulses weight
Menu description

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Page Page title Description
5 DMD INTERVAL dmd interval
6 RS485 Address, baudrate, parity
7 M-BUS Primary address, baudrate, secondary address
8 ALARM Alarm function
9 DIGITAL OUTPUT Digital output function
10 DISPLAY Backlight, screensaver, page filter and WIRING CHECK function
11 V CONNECTIONS Terminal- phase association for voltage inputs
12 I CONNECTIONS Terminal-phase association for current inputs
13 CHECKSUM FW Checksum for MID certification
14 SERIAL NUMBER Serial number
15 SECONDARY ADDR M-Bus secondary address for use with VMU-B
RESET menu
This menu allows to reset the following settings:
Page Page title Description
1 PARTIAL It resets the partial meters
2 DMD AND MAX It resets the dmd calculation
3 FACTORY RESET* It restores the factory settings
*Note: in MID models, it restores to factory settings only non MID relevant parameters, leaving CT ratio to the value set at first
power on.
Menu description

Input, output and communication
Digital output
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. lPulse weight
lPulse duration
Modbus RTU port (OS version)
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 (OM version)
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.
Optical port and OptoProg
The optical port allows to set up the WM15 unit and to read the data through UCS (from PC) or mobile UCS (da smartphone
Android) without connecting to the communication network to which the analyser is connected. You need to purchase OptoProg,
the Carlo Gavazzi optical interface device for communication via micro USB or via Bluetooth.
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Essential information
dmd values
Average value calculation (dmd)
WM15 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.
Alarms
Introduction
WM15 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, WM15 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)

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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
Run-hour meter
The run-hour meters available in WM15 increase when at least one of the currents (referring to the primary side of the current
transformers) is higher than the value of the start-up current of run hour meter (adjustable by UCS software and by default equal to
the WM15 start-up current).
Total and partial run hour meter (kWh+) increase when the power is positive (imported), total and partial run hour meter (kWh-)
when the power is negative (exported).
Essential information

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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
WM15 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).
Screensaver
If the SCREENSAVER function is enabled (default setting), after 5 minutes have elapsed since a button was pressed the unit will
display the home page if the screensaver type is “Home page” (default setting), or it shall activate the slideshow function, which
displays the selected pages on a rotating basis.
Notes: the screensaver type and the slideshow function with the relevant pages can only be set up through the UCS software or
the UCS Mobile app. In MID models the screensaver setting is “Homepage” and cannot be changed.
Page filter
The page filter makes it easier to use and browse the measurement pages. When you use the / buttons, the unit shall
only display the pages you are most interested in, which can be selected through the UCS software or the UCS Mobile app.
Note: to display all the pages without using the UCS software or app, you can disable the page filter from the SETTINGS MENU
(DISPLAY → PAGE FILTER → OFF). By default, the pages included in the filter are: 1, 10, 13, 16, 17, 21, 22, 26, see
"Measurement pages" on page10.
Restoring the factory settings
Restoring the settings using the RESET menu
From the RESET menu you can restore all the factory settings. At start-up the QUICK SET-UP and WIRING CHECK menu shall
be available again.
Notes: meters are not reset. In MID models you cannot reset the CT current transformer ratio (CT RATIO).
Restoring the settings using the reset button
Press for at least five seconds the reset button (located near the current inputs) to access the menu, restore all the factory settings
and reset all meters (total and partial).
Note: in MID models the reset can only be performed if the energy meter has not exceeded 1 kWh. Before sealing the terminal,
you can then correct any CT current transformer setting errors (CT ratio), reactivating the MID programming menu at the next
switch-on.
WIRING CHECK function
Introduction
The WIRING CHECK function allows to check and correct the connections.
For it to work properly, the following three conditions must be met:
1. the set system must be “3P+N”,
2. all voltages must be connected,
3. All currents must be greater than zero, with an offset ranging between a 45° lag and a 15° lead (power factor > 0.7 inductive or
> 0.96 capacitive)
Essential information

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Display check
WM15 verifies the connections and analyses the measured dimensions. In case of wiring errors it suggests the changes through a
graphical interface.
During operation, if a wiring error is detected the alarm icon will light up.
If the three conditions fail to be met, the following indications shall be displayed in the WIRING info page:
lV MISSING: at least one voltage is missing
lI MISSING: at least one current is missing
lPF OUT OF RANGE: the current-voltage offset is out of range.
Check from UCS software or UCS Mobile
By connecting to the analyzer through the UCS software or UCS Mobile, you can verify the connections and perform the steps
required to correct the wiring error.
Virtual correction from UCS software or UCS Mobile
The virtual correction function allows to calculate the wiring error solution and to modify the association of the physical connections
with the measurement references.
Example
if the connections of terminals 5 and 6 are inverted (voltage 2 and voltage 3), by accepting the proposed solution, voltage 2 shall
be the one measured with reference to terminal 6, while voltage 3 shall be the one referring to terminal 5.
The unit shall display the icon, signalling that the association was modified via software and referring to the info pages to
check the phase-terminal associations set by UCS.
Note: the function is not available in MID models
Essential information

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Maintenance and disposal
Troubleshooting
Note: in case of other malfunctions or of any failure, please contact the CARLO GAVAZZI branch or the distributor for your country
Problem Cause Possible solution
The ‘EEEE’ indication is displayed
instead of a measurement
The analyser is not used within the
prescribed measuring range; as a
consequence, the measurement
exceeds the maximum permitted
value or is the result of a calculation
with at least one measurement in
error.
Uninstall the analyser
The analyser has just been switched
on and the interval defined for the
calculation of the average power
values (default: 15 min) has not
expired yet.
Wait. If you wish to change the interval, access the
Dmd page of the Settings menu
The displayed values are not the
expected ones
Electrical connections are incorrect Verify the connections
The current transformer settings are
incorrect
Check the set current transformer ratio
Alarms
Problem Cause Possible solution
An alarm is triggered, but the
measurement has not exceeded the
threshold value
The value with which the alarm
variable is calculated is in error
Check the set current transformer parameters
The analyser is not used within the
prescribed measuring range
Uninstall the analyser
The alarm is not activated and
deactivated as expected
The alarm settings are incorrect Check the set parameters
Communication problems
Problem Cause Possible solution
No communication can be
established with the analyser
Communication settings are incorrect Check the set parameters
Communication connections are
incorrect
Verify the connections
The settings of the communication
device (third-party PLC or software)
are incorrect
Check the communication with the UCS software
Display problem
Problem Cause Possible solution
You cannot display all measurement
pages
The page filter is enabled Disable the filter, see "Page filter" on page17
Download
WM15 installation manual and datasheet www.productselection.net
UCS desktop www.productselection.net/Download/UK/ucs.zip
UCS Mobile Google Play Store

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Cleaning
To keep the display clean, use a slightly wet cloth. Never use abrasives or solvents.
Responsibility for disposal
Dispose of the unit by separately collecting its materials and bringing them to the facilities specified by government
authorities or by local public bodies. Proper disposal and recycling will help preventing potentially harmful consequences
for the environment and for people.
Maintenance and disposal