ABB M4M 20 User manual

Network analyzer
M4M 20
M4M 20-M
User manual
M4M 20 User manual 2CSG445032D0201

Table of Contents
1.General information..............................................................................................5
1.1.Use and storage of the manual.............................................................................5
1.2.Copyright ..................................................................................................................5
1.3.Liability disclaimer..................................................................................................5
1.4.General safety warnings ........................................................................................5
1.5.Cyber Security Disclaimer......................................................................................6
2.Packaging contents.............................................................................................. 7
3.Technical characteristics .....................................................................................8
3.1.Description of the device ......................................................................................8
3.2.Product Marking......................................................................................................8
3.3.Main functionalities................................................................................................9
3.4.Versions...................................................................................................................10
3.5.Overall dimensions ...............................................................................................10
3.6.Technical data........................................................................................................ 11
4.Measurement method........................................................................................ 16
4.1.Vector registration method ................................................................................16
5.Installation .......................................................................................................... 17
5.1.Assembly M4M 20 ................................................................................................. 17
5.2.Disassembly M4M 20 ...........................................................................................18
5.3.Disassembly M4M 20: ..........................................................................................18
5.4.Wiring diagrams....................................................................................................19
6.Access to device .................................................................................................25
6.1.Homepage..............................................................................................................25
6.2.Navigation symbols ............................................................................................26
6.3.Notification icons .................................................................................................26
6.4.Overview of menu displays.................................................................................27
6.5.Data entry...............................................................................................................28
6.6.Favourite page ......................................................................................................29
7.First commissioning ..........................................................................................30
7.1.Setting language .................................................................................................. 30
7.2.Password for the first use .................................................................................. 30
7.3.Date and time......................................................................................................... 31
7.4.Type of network..................................................................................................... 31
7.5.CT ratio....................................................................................................................32
7.6.VT ratio ................................................................................................................... 34
M4M 20 NETWORK ANALYZER USER MANUAL 3

7.7.Lock MID version ....................................................................................................35
8.Configuration......................................................................................................36
8.1.Unit...........................................................................................................................36
8.2.Installation .............................................................................................................41
8.3.Inputs / Outputs.................................................................................................. 43
8.4.Alarms.................................................................................................................... 46
8.5.Communication.................................................................................................... 48
8.6.Other settings .......................................................................................................51
9.Data Reading.......................................................................................................53
9.1.Realtime ................................................................................................................. 54
9.2.Energy .....................................................................................................................55
9.3.Power Quality ....................................................................................................... 56
9.4.Average...................................................................................................................57
9.5.Min Value .............................................................................................................. 58
9.6.Max Value ...............................................................................................................59
9.7.I/O ........................................................................................................................... 60
9.8.Notifications ........................................................................................................ 60
9.9. Power outages .....................................................................................................63
9.10.Timers .................................................................................................................. 64
10.Graphs ................................................................................................................65
11.Maintenance ......................................................................................................66
4M4M 20 NETWORK ANALYZER USER MANUAL

M4M 20 NETWORK ANALYZER USER MANUAL 5
1.General information
1.1.Use and storage of the manual
Carefully read this manual and adhere to the indications described prior to using the device.
This manual contains all of the safety information, the technical aspects and the operations necessary to
ensure the correct use of the device and maintain it in safe conditions.
1.2.Copyright
The copyright of this manual is the property of ABB S.p.A.
This manual contains texts, designs and illustrations of a technical nature which must not be disclosed or
transmitted to third parties, even partially, without the written authorisation of ABB S.p.A.
1.3.Liability disclaimer
The information contained in this document is subject to change without notice and cannot be
considered as an obligation by ABB S.p.A. ABB S.p.A. is not liable for any errors that may appear in this
document. ABB S.p.A. is not liable under any circumstances for any direct, indirect, special, incidental or
consequential damage of any kind that may arise from using this document. ABB S.p.A. is also not liable
for incidental or consequential damage that may arise from using the software or hardware mentioned in
this document.
1.4.General safety warnings
Non-adherence to the following points can lead to serious injury or death.
Use the suitable personal protection devices and adhere to the current regulations governing electrical safety.
• This device must be installed exclusively by qualified personnel who have read all of the information
relative to the installation.
• Check that the voltage supply and measurement are compatible with the range permitted by the device.
• Ensure that all current and voltage supplies are disconnected prior to carrying out any controls, visual
inspections and tests on the device.
• Always assume that all circuits are under voltage until they are completely disconnected, subjected to
tests and labelled.
• Disconnect all of the power supply prior to working on the device.
• Always use a suitable voltage detection device to check that the supply is interrupted.
• Pay attention to any dangers and carefully check the work area ensuring that no instruments or foreign
objects have been left inside the compartment in which the device is housed.
• The correct use of this device depends on a correct manipulation, installation and use.hdfh
• Failure to adhere to the basic installation information can lead to injuries as well as damage to the
electric instruments or to any other product.
• NEVER connect an external fuse in by-pass.
• Disconnect all of the input and output wires before carrying out a dielectric rigidity test or an
insulation test on an instrument in which the device is installed.
• The tests carried out at a high voltage can damage the device’s electronic components.
• The device has to be installed inside a switchboard.
• Installation of M4M shall include a switch or circuit breaker for the connection of auxiliary supply and
voltage measurement. The switch or circuit breaker must be suitably located and easily reachable and
must be marked as the disconnecting device for M4M.
• Switch off circuit breaker or switch before disconnecting from the auxiliary supply and voltage
measurement or connecting to the auxiliary supply or voltage measurement.

6M4M 20 NETWORK ANALYZER USER MANUAL
1.5.Cyber Security Disclaimer
M4M 20 network analyzer is designed to be connected and to communicate information and data via
a network interface, which should be connected to a secure network. It is your sole responsibility to
provide and continuously ensure a secure connection between the product and your network or any
other network (as the case may be) and to establish and maintain appropriate measures (such as but
not limited to the installation of firewalls, application of authentication measures, encryption of data,
installation of antivirus programs, etc.) to protect the M4M 20 network analyzer product, the network, its
system and interfaces against any kind of security breaches, unauthorized access, interference, intrusion,
leakage and/or theft of data or information. ABB S.p.A. and its affiliates are not liable for damages and/
or losses related to such security breaches, unauthorized access, interference, intrusion, leakage and/or
theft of data or information.
Although ABB S.p.A. provides functionality testing on the products and updates that we release, you
should institute your own testing program for any product updates or other major system updates (to
include but not limited to code changes, configuration file changes, third party software updates or
patches, hardware change out, etc.) to ensure that the security measures that you have implemented
have not been compromised and system functionality in your environment is as expected.

M4M 20 NETWORK ANALYZER USER MANUAL 7
2.Packaging contents
Packaging contents
1 Network analyzer M4M 20 or M4M 20-M (MID)
2 Installation manual
3 Calibration certificate
4 Installation accessories (removable terminals, fixing clips)
5 M4M 20-M (MID): Sealable terminal block
The number and type of removable terminals in the package varies according to the different versions.
Please refer to below table to check the removable terminals included in each package.
Product
Name
Current input
terminal (6
poles)
Voltage input
terminal (4
poles)
Auxiliary supply
terminal (2
poles)
Digital outputs
terminal (3
poles)
Programmable
I/O terminal (3
poles)
Analogue output
terminal (3
poles)
RS485 terminal
(3 poles)
M4M 20 X X X X - - -
M4M 20
MODBUS X X X X - - X
M4M 20-M
MODBUS X X X X - - X
M4M 20
ETHERNET X X X X - - -
M4M 20-M
ETHERNET X X X X - - -
M4M 20
PROFIBUS X X X X - - -
M4M 20 I/O X X X X X X X
M4M 20
BACNET X X X X - - -
M4M 20
ROGOWSKI - X X X - - X
Please notice that terminals for current input on M4M 20 Rogowski are pre-wired on ABB’s R4M
Rogowski coils
M4M Calibration Certificate
This Calibration Certificate maynot be reproduced, in whole or in part,
without written permission of ABB
Test Conditions Test Description Accuracy
Test
Result
No. V1
[V]
V2
[V]
V3
[V]
I1
[A]
I2
[A]
I3
[A]
PF Results Limit
#1 230 230 230 6 661 Verification–
Active energy (Import) -0,01% ±0,5% Passed
#2 230 230 230 0,9 0,9 0,9 1 Verification –
Active energy (Import) -0,01% ±0,5% Passed
#3 230 230 230 0,15 0,15 0,15 1 Verification–
Active energy (Import) -0,01% ±0,5% Passed
#4 230 230 230 6 660,5 ind. Verification –
Active energy (Import) -0,01% ±0,5% Passed
#5 230 230 230 0,9 0,9 0,9 0,5 ind. Verification –
Active energy (Import) -0,01% ±0,5% Passed
#6 230 230 230 0,15 0,15 0,15 0,5ind. Verification –
Active energy (Import) -0,01% ±0,5% Passed
#7 230 230 230 1,5 1,5 1,5 1 Verific ation–
Active energy (Import) -0,01% ±0,5% Passed
#8 230 2 30 230 0,2 0,2 0,2 1 Verification –
Active energy (Import) -0,01% ±0,5% Passed
#9 230 230 230 1,5 1,5 1,5 0,5 ind. Verification –
Active energy (Import) -0,01% ±0,5% Passed
#10 2 30 230 230 0,2 0,2 0,2 0,5 ind. Verification –
Active energy (Import) -0,01% ±0,5% Passed
#11 230 230 230 6 660,5 ind. Verific ation–
Active energy (Import) -0,01% ±0,5% Passed
#12 230 230 230 0,9 0,9 0,9 0,5 ind. Verification –
Active energy (Import) -0,01% ±0,5% Passed
#13 230 230 230 0,15 0,15 0,15 0,5 ind. Verification –
Active energy (Import) -0,01% ±0,5% Passed
#14 58 58 58 6 6 6 1 Verification –
Active energy (Import) -0,01% ±0,5% Passed
#15 58 58 58 6 6 6 0,5 ind. Verification –
Active energy (Import) -0,01% ±0,5% Passed
#16 230 230 230 6 - 6 1 Verification –
Active energy (Import) -0,01% ±0,5% Passed
#17 230 230 230 0,9 - 0,9 1 Verification –
Active energy (Import) -0,01% ±0,5% Passed
#18 230 230 2 30 0,15 - 0,15 1 Verification –
Active energy (Import) -0,01% ±0,5% Passed
#19 230 230 230 6 - 6 0,5 ind. Verification –
Active energy (Import) -0,01% ±0,5% Passed
#20 230 230 230 0,9 - 0,9 0,5 ind. Verification –
Active energy (Import) -0,01% ±0,5% Passed
#21 230 230 230 0,15 - 0,15 0,5 ind. Verification –
Active energy (Import) -0,01% ±0,5% Passed
Contact us
ABBS.p.A .
ElectrificationBusiness
Vialedell’Industria, 18
20010Vittuone (MI) Italy
https://new.abb.com/low-voltage
Graphs
DataReading
Configuration
Network analyzer
INSTALLATIONMANUAL
M4M 20
2CSG445030D0201 July 2019
Warning!Installation by person
withelectrotechnical expertise
only.
Warnung!Installation nur durch
elektrotechnischeFachkraft.
Avvertenza!Fare installare solo da
unelettricista qualificato.
1.Packaging Content
• Networkanalyzer M4M 20
• Installationmanual
• Calibrationcertificate
• 2mounting clips
• Removableterminals for wiring
2.Mounting
2.1.Assembly
2.2.WiringDiagram
Forcurrent measurement, please
noticethat it is needed to fasten
thescrew-type terminal to the
devicewith the two screws.
3.Symbol instruction
Button Function
Shortcutto Home/
Favorite/Notifications
pages.
BACK Returnto the previous
page.
ENTER
Confirmthe selection.
Increaseor decrease the
value.Keeping pressed will
increasethe speed of the
numbervariation.
Movecursor up or down.
Movecursor to the left or to
theright.
Confirmselection with
ENTER
CTratio L1 L2 L3
Selectthe current transformer ratio among
thedefault ones or enter it manually.
Incase of manual entry, enter the value
ofthe primar y with +or -and select the
secondary(1A or 5A).
Enterthe voltage transformer ratio (both
primary and secondary) manually with +or -.
Manual
40/5A
50/5A
60/5A
CTratio L1 L2 L3
-
+
MORE
Finalizethe installation through
removableterminals.
Defaultpassword is 00000. At
firstuse, the password shall be
defined.In order to disable the
password,please enter 00000.
4.Access to device
Graphs
DataReading
Configuration
Accessto device is done through the five
buttonsunder the screen.
Thehome page is divided in 3 sections:
Sections Description
Graphs
Graphicalrepresentation
ofthe main parameters.
DataReading Valuesof the main
parameters.
Configuration Setupof the device.
→
→ → Unit → Language
→ → Installation → CT ratio
Incase of direct insertion,
400/400Vvalue shall be used.
→ → Installation → VTratio
CTratio L1 L2 L3
Confirmselection with
ENTER
Confirmselection with ENTER
Confirmselection with
ENTER
3Ph/4W/3CT
3Ph/3W/3CT
3Ph/3W/2CT
3Ph/3W/1CT
Parameter Description
3Ph/4W/3CT 3-phase4-wire + 3CTs
3Ph/4W/1CT 3-phase4-wire + 1CT
3Ph/3W/1CT 3-phase3-wire + 1CT
3Ph/3W/3CT 3-phase3-wire + 3CTs
3Ph/3W/2CT 3-phase3-wire + 2CTs
2Ph/3W/2CT 2-phase3-wire + 2CTs
1Ph/2W/1CT 1-phase2-wire + 1CT
Selectthe type of network among the
followingones:
→ → Installation → Typeof network
3-phase4-wire network with 3CTs
3-phase4-wire network with 1CT
3-phase3-wire network with 1CT
3-phase3-wire network with 3CTs
3-phase3-wire network with 2CTs
2-phase3-wire network with 2CTs
1-phase2-wire network with 1CT
5.First Commissioning
Tostart to use the analyzer it is mandatory
toconfigure the basic setting (password,
language,type of network, CT ratio and VT
ratio).
5.1.Settingpassword
Thepassword is composed by 5 numerical
characters.In order to select each numerical
character,it is necessary to use +or -and
confirmevery selection with ENTER.
5.2.Settinglanguage
5.3.Typeof network
5.4.CurrentTransformer ratio
5.5.VoltageTransformer ratio
Selectthe desired language for the
displayamong the ones available.
QRCode for online
UserManual.
©Copyright 2019 ABB S.p.A. All rights
reserved.Specification subject to change
withoutnotice.

1
2
3
4
1
45
4
2 3

8M4M 20 NETWORK ANALYZER USER MANUAL
3.Technical characteristics
3.1.Description of the device
M4M 20 is ABB’s network analyzer range that provides complete and accurate electrical pa-rameters
monitoring and basic power quality analysis.
Equipped with graphic color display for advanced visualization of the measured parameters and
Bluetooth module for smart commissioning.
3.2.Product Marking
Packaging contents
1 Tightening torque 13 Product code
2 Calibration date 14 Serial number
3 Current 15 Voltage inputs
4 Frequency 16 Protection class II, Cat III
5 3-element metering 17 Cable strip
6 2-element metering 18 Notified body
7 1-element metering 19 Caution, possibility of electric shock
8 Import/Export 20 Auxiliary supply
9 MID and year of verification 21 Digital output connection
10 MID certificate number 22 RS485 connectoin
11 Caution, refer to accompaigning
document 23 Manufacturer information
12 Cable strip 24 Accuracy class, LED pulse frequency,
operating temperature
13
1 2 1 1 2315
5
6
7
9
10 18
12 20 1
17
19
14
16
24
8
11
21
22

M4M 20 NETWORK ANALYZER USER MANUAL 9
3.3.Main functionalities
Real-time
TRMS current •
TRMS Voltage •
Frequency •
Active, Reactive and Apparent Power •
Power Factor •
Operating timer, countdown timer •
Energy
Active, Reactive and Apparent Energy •
4 quadrant Energy (Import/Export) •
Power quality
THD (I, VLN, VLL) •
Neutral current Calculated
Data recording and logs
Single alarms 25
Warnings, alarms and errors logs •
Demand values (average) Basic Advanced Basic
Min/Max Demand values Basic Advanced Basic
HMI
Graphs visualization Basic
Notifications •
Homepage and favourite page •
Password protection •
Connectivity
Automatic integration in ABB Ability™ EDCS •
Bluetooth Low Energy •
Communication Protocols Modbus RTU, Modbus TCP/IP,
Profibus DP-V0, BACnet/IP

10 M4M 20 NETWORK ANALYZER USER MANUAL
3.4.Versions
Product Name I/O Communication protocol
M4M 20 2 Digital Outputs Bluetooth
M4M 20 MODBUS 2 Digital Outputs Modbus RTU, Bluetooth
M4M 20-M MODBUS 2 Digital Outputs Modbus RTU, Bluetooth
M4M 20 ETHERNET 2 Digital Outputs Modbus TCP/IP, Bluetooth
M4M 20-M ETHERNET 2 Digital Outputs Modbus TCP/IP, Bluetooth
M4M 20 PROFIBUS 2 Digital Outputs Profibus DP-V0, Bluetooth
M4M 20 I/O
2 Programmable I/O
2 Digital Outputs
2 Analogue Outputs
Modbus RTU, Bluetooth
M4M 20 ROGOWSKI 2 Digital Outputs Modbus RTU, Bluetooth
M4M 20 BACNET 2 Digital Outputs BACnet/IP, Bluetooth
3.5.Overall dimensions
96 mm
96 mm
57 mm*
75,5 mm
77,5 mm*
92 -0+0,8 mm
92 -0+0,8 mm
*with terminal.
IEC 61554

M4M 20 NETWORK ANALYZER USER MANUAL 11
3.6.Technical data
Auxiliary power supply
Voltage range [V] 48 to 240 VAC/VDC ±15%
Frequency [Hz] 50/60 Hz ±5%
Power consumption [VA] 10 VA max
Installation category CAT III 300V class per IEC 61010-1 edition 3
Protection fuse T1 A - 277 VAC
Measurement accuracy
Measurement type True RMS up to the 40th harmonic
128 samples per cycle, zero blind
IEC 61557-12 IEC 61557-12 PMD/S/K70/0,5
Active energy Class 0,5 acc. to IEC 61557-12
Class 0,5S acc. to IEC 62053-22
Reactive energy Class 2 acc. to IEC 61557-12
Class 2S acc. to IEC 62053-23
Active power Class 0,5 acc. to IEC 61557-12
Reactive power Class 2 acc. to IEC 61557-12
Apparent power Class 0,5 acc. to IEC 61557-12
Voltage Class 0,2 acc. to IEC 61557-12
Current Class 0,2 acc. to IEC 61557-12
Neutral current Calculated
Frequency Class 0,1 acc. to IEC 61557-12
Unbalances Class 0,2 acc. to IEC 61557-12
Harmonics, THD (Current, voltage) Class 1 acc. to IEC 61557-12
Voltage measurement inputs
Measurement range [V] 46(80)...480(830) V
Measurement category 400V~ (CAT III)
Rated frequency [Hz] 50-60 Hz
Max. VT secondary (indirect connection) [V] 400 VAC (L-N)
Max over voltage [V] 800 VAC (L-L)
Protection fuse [V] T1 A - 277 VAC
The M4M voltage inputs have a high impedance which decreases power consumption and increases
security due low current flow in the voltage input circuit. However, if the voltage input wirings are
floating, i.e. not connected to a voltage source, the wires may work as an antenna to the surroundings
electric fields which can create a perceived floating voltage. The M4M will not show this floating voltage
in case it is below 40V (below the Voltage measurement range) and in case of a three phase system
with measuring current below starting current (below current measurement range). In all other cases
of floating voltage the M4M display may show a voltage bigger than zero, which depends on installation
conditions. This behavior does not affect the reliability of the M4M in normal conditions with a connected
load.

12 M4M 20 NETWORK ANALYZER USER MANUAL
Current measurement inputs
Number of current inputs 3 (L1, L2, L3)
Indirect insertion with CT
CT secondary 5 A (Class 0.5S)
1 A (Class 0,5S)
Measurement range without accuracy derating 50 mA - 6 A
Starting current 1 mA
Burden 0.024 VA at 6 A
Indirect insertion with Rogowski coils (only M4M 20 Rogowski)
Rated current 10000 A
Measurement range without accuracy derating 100 A - 12 kA
Starting current 10 A
I/O
Digital Output
Voltage (min - max) 5 - 240 VAC/DC
Current (min - max) 2 - 100 mA
Max ON state drop voltage 1,5 V
Max R value at Min voltage conditions (5 V) 1750 Ohm
Min R value at Max voltage conditions (240 V) 2400 Ohm
Pulse duration [ms] 20 ms ON, 20 ms OFF
Pulse frequency 25 Hz
Alarm activation delay [s] 1 - 900 s (programmable)
Alarm return hysteresis 0 - 40% (programmable)
Digital Input
Maximum Voltage 240 VAC/DC
Max voltage for OFF state on input 20 VAC/DC
Min voltage for ON state on input 45 VAC/DC
M4M 20-M (MID): The Digital Output 1 of the M4M 20-M Modbus and M4M 20-M Ethernet is assigned as
Pulse Output, associated to the active energy measured value.

M4M 20 NETWORK ANALYZER USER MANUAL 13
Analogue Output
Programmable electrical parameters Span [0 - 20 mA or 4 - 20 mA]
Load Typical 250 Ohm, max 500 Ohm
Mechanical characteristics
Overall dimensions 96 mm x 96 mm x 77,5 mm
(Depth inside the switchboard: 57mm )
IP degree of protection (IEC 60529) Front: IP54
Terminals: IP20
Weight [g] 400
Terminal characteristics
Tightening torque 0,4 Nm
Voltage inputs
Nominal cross section: 2,5 mm
2
Solid/stranded wire: 0,2 - 2,5 mm
2
(AWG 24 - 12)
Pitch: 7,62 mm
Poles: 4
Current inputs
Nominal cross section: 2,5 mm
2
Solid/stranded wire: 0,2 - 2,5 mm
2
(AWG 24 - 12)
Pitch: 5,08 mm
Poles: 6
Screw flanges for fixing
RS-485 Serial port
Nominal cross section: 2,5 mm
2
Solid/stranded wire: 0,2 - 2,5 mm
2
(AWG 24 - 12)
Pitch: 5,08 mm
Poles: 3
I/O
Nominal cross section: 2,5 mm
2
Solid/stranded wire: 0,2 - 2,5 mm
2
(AWG 24 - 12)
Pitch: 5,08 mm
Poles: 3 (Programmable I/O, only on M4M
20 I/O)
Poles: 3 (Digital outputs)
Poles: 3 (Analogue outputs, only on M4M
20 I/O)
Rogowski current probes
Only with ABB Rogowski probes:
- R4M-200: 200 mm diameter (2CSG202150R1101)
- R4M-80: 80 mm diameter (2CSG202160R1101)

14 M4M 20 NETWORK ANALYZER USER MANUAL
Climatic conditions
Operating temperature -25 to 70 °C (K70 acc. to IEC 61557-12)
Storage temperature -40 to 85 °C (K70 acc. to IEC 61557-12)
Relative humidity Max 93% (non-condensing) at 40°C
Pollution degree 2
Altitude < 2000 m
Mounting requirement Only for internal usage
User Interface
Access to device 5 pushbuttons
Display type Graphic color display
Display dimensions 70 x 52 mm (3.5")
Communication protocol
Modbus RTU M4M 20 Modbus, M4M 20 I/O, M4M 20 Rogowski, M4M
20-M Modbus
Communication interface RS485 with optical isolation
Baud rate 9.6, 19.2, 38.4, 57.6, 115.2 kbps
Parity number Odd, Even, None
Stop bit 1, 2
Address 1-247
Connector 3 pole terminal
Profibus DP-V0 M4M 20 Profibus
Protocol Profibus with slave DP-V0 function in
compliance with IEC 61158 regulations
Communication interface RS485 with optical isolation
Baud rate Automatic detection [9.6k - 12 Mbps]
Address 0-126
Connector DB 9 female connector (do not use
connectors with 90° cable outlet)
LED indicators Green for communication status
Red for communication error
Modbus TCP/IP M4M 20 Ethernet, M4M 20-M Ethernet
Protocol Modbus TCP/IP
Communication interface RJ45
BACnet M4M 20 Bacnet
Protocol BACnet/IP
Communication interface RJ45
Bluetooth
Type BLE (Bluetooth Low Energy)
Standards
Power metering and monitoring devices (PMD) IEC 61557-12 (IEC 62053-22, IEC 62053-23)
Electrical safety IEC 61010-1
EMC
IEC 61326-1 (IEC 61000-3-2, IEC 61000-3-3,
IEC 61000-4-2, IEC 61000-4-3, IEC 61000-4-
4, IEC 61000-4-5, IEC 61000-4-6, IEC 61000-4-
8, IEC 61000-4-11)

M4M 20 NETWORK ANALYZER USER MANUAL 15
Technical data for M4M 20-M according to the Measuring Directive 2014/32/EU
MID standards EN 50470-1
EN 50470-3
Voltage measurement
(type of network and rated voltage)
3Ph/4W/3CT
3Ph/3W/2CT
1Ph/2W/1CT
3 x 230 (400)...3 x 400 (690) V
Current rating (I min- I ref(Imax)) 0,01-1(6) A
Rated frequencies, tolerance 50 Hz and 60 Hz, +/- 2%
Active Energy accuracy class Class C
Electromagnetic ambient conditions Class E2
Mechanical ambient conditions Class M1
LED indicator pulse frequency 200000 imp/kWh
LED indicator pulse length 1ms

16 M4M 20 NETWORK ANALYZER USER MANUAL
4.Measurement method
Import energy registers increments when the power is positive and export energy registers increments
when power is negative.
All import and export registers are positive (or zero) and will either increment or stand still. Net energy
registers contains the import minus the export register for corresponding registers and can be positive
or negative.
The ABB M4Ms use the vector registration method for computation of energy.
4.1.Vector registration method
In the vector registration method the instantaneous energy consumption of the measuring elements (the
three phases in 3-phase 4-wire metering) is summed up to the total register. If the sum is positive the
import register is incremented and if the sum is negative the export register is incremented.
Say for example that the power in the three phases are L1: +1 kW, L2: -1 kW and L3: +1 kW. The total power
will then be 1 – 1 + 1= 1 kW and the total import register will increase at a rate of 1 kWh each hour and the
total export register will stand still.
If the power in the three phases instead are L1: +1 kW, L2: -1 kW and L3: -1 kW the total power will be 1 – 1
-1= -1 kW and the total export register will increase with the rate of 1 kWh each hour and the total import
register will stand still.
Note that if a 3-phase load with neutral have connections between the phases that have a power factor
smaller than 0.5, that is constitute a mainly reactive load, the power in single phases can be negative even
if the 3-phase load is consuming energy. The total power and energy will however always be positive for a
3-phase load that is consuming energy.
Note also that the sum of the per phase registers will be bigger than the total register if the power in the
phases contains a mix of both positive and negative power. In applications where the load is a 3-phase
load the total register should always be used for billing.

M4M 20 NETWORK ANALYZER USER MANUAL 17
5.Installation
5.1.Assembly M4M 20
Sealing of terminal block for M4M 20-M (MID)
M4M 20-M (MID): In order to ensure antitampering for MID directive, sealing of terminal block is
mandatory
12
3
4
1
2
3
click
Sealing

18 M4M 20 NETWORK ANALYZER USER MANUAL
5.2.Disassembly M4M 20
5.3.Disassembly M4M 20:
In order to remove the terminal block, please use a screwdriver in the dedicated area and turn it.
Please notice that if seal is broken, tampering of M4M for MID will happen!
1
1
2
2
3

M4M 20 NETWORK ANALYZER USER MANUAL 19
5.4.Wiring diagrams
The operations to carry out for the correct connection of the device, based on thetype of electric line
available, are described in this section.
The installation and the cabling of the device must be carried out by qualified personnel.
Danger of electrocution, burning and electirc arc.
Use the personal protection devices suitable to adhere to the current regulations governing electrical safety.
Prior to carrying out any connections check the sectioning of the electirc supply with the voltage detection
device.
• M4M 20 connection
• M4M 20 MODBUS connection
M4M 20-M MODBUS connection

20 M4M 20 NETWORK ANALYZER USER MANUAL
• M4M 20 ETHERNET connection
M4M 20-M ETHERNET connection
• M4M 20 PROFIBUS connection
• M4M 20 I/O connection
• M4M 20 ROGOWSKI connection
• M4M 20 BACNET connection