Circutor CVM-B100 User manual

INSTRUCTION MANUAL
(M010B01-03-16C)
Power analyzer
CVM-B100 CVM-B150

2
CVM-B100 - CVM-B150
Instruction Manual

SAFETY PRECAUTIONS
DISCLAIMER
CIRCUTOR, SA reserves the right to make modi cations to the device or the unit speci ca-
tions set out in this instruction manual without prior notice.
CIRCUTOR, SA on its web site, supplies its customers with the latest versions of the device
speci cations and the most updated manuals.
www.circutor.com
DANGER
Warns of a risk, which could result in personal injury or material damage.
ATTENTION
Indicates that special attention should be paid to a speci c point.
Follow the warnings described in this manual with the symbols shown below.
If you must handle the unit for its installation, start-up or maintenance, the following
should be taken into consideration:
Incorrect handling or installation of the unit may result in injury to personnel as well as damage
to the unit. In particular, handling with voltages applied may result in electric shock, which may
cause death or serious injury to personnel. Defective installation or maintenance may also
lead to the risk of  re.
Read the manual carefully prior to connecting the unit. Follow all installation and maintenance
instructions throughout the unit’s working life. Pay special attention to the installation stan-
dards of the National Electrical Code.
Refer to the instruction manual before using the unit
In this manual, if the instructions marked with this symbol are not respected or carried out correctly, it can
result in injury or damage to the unit and /or installations.
CIRCUTOR, SA reserves the right to modify features or the product manual without prior noti cation.
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Instruction Manual
CVM-B100 - CVM-B150

CONTENTS
SAFETY PRECAUTIONS .......................................................................................................................................3
DISCLAIMER ..........................................................................................................................................................3
CONTENTS.............................................................................................................................................................4
REVISION LOG.......................................................................................................................................................7
1.- VERIFICATION UPON RECEPTION.................................................................................................................8
2.- PRODUCT DESCRIPTION................................................................................................................................8
3.- UNIT INSTALLATION ......................................................................................................................................10
3.1.- PRIOR RECOMMENDATIONS.................................................................................................................10
3.2.- INSTALLATION ........................................................................................................................................ 11
3.3.- UNIT TERMINALS....................................................................................................................................12
3.3.1.- TERMINALS ON THE UPPER FACE ............................................................................................... 12
3.3.2.- TERMINALS ON THE LOWER FACE............................................................................................... 13
3.4.- CONNECTION DIAGRAMS ..................................................................................................................... 14
3.4.1.- THREE-PHASE NETWORK MEASUREMENT WITH A 4-WIRE CONNECTION. ........................... 14
3.4.2.- THREE-PHASE NETWORK MEASUREMENT WITH A 3-WIRE CONNECTION. .......................... 16
3.4.3.- THREE-PHASE NETWORK MEASUREMENT WITH A 3-WIRE CONNECTION AND TRANSFOR-
MERS WITH AN ARON CONNECTION. ..................................................................................................... 18
3.4.4.- TWO-PHASE NETWORK MEASUREMENT WITH A 3-WIRE CONNECTION. ............................... 19
3.4.5.- SINGLE-PHASE NETWORK MEASUREMENT, PHASE TO PHASE, WITH A 2-WIRE CONNEC-
TION..............................................................................................................................................................20
3.4.6.- SINGLE-PHASE NETWORK MEASUREMENT, PHASE TO NEUTRAL, WITH A 2-WIRE CONNEC-
TION..............................................................................................................................................................21
3.5.- STARTING UP THE UNIT.........................................................................................................................22
4.- OPERATION ...................................................................................................................................................26
4.1.- OPERATING PRINCIPLE........................................................................................................................26
4.2.- MEASUREMENT PARAMETERS ........................................................................................................... 27
4.3.- KEYPAD FUNCTIONS.............................................................................................................................28
4.4.- DISPLAY .................................................................................................................................................. 29
4.4.1.- UPPER AREA....................................................................................................................................29
4.4.2.- LOWER AREA...................................................................................................................................31
4.4.3.- CENTRAL AREA ............................................................................................................................... 31
4.5.- LED INDICATORS...................................................................................................................................34
4.6.- INPUTS ....................................................................................................................................................35
4.7.- OUTPUTS ................................................................................................................................................35
5.- DISPLAY AND CONFIGURATION .................................................................................................................. 36
5.1.-MEASUREMENT DISPLAY MENU ....................................................................................................37
5.1.1.- DISPLAY 1 PARAMETER.............................................................................................................38
5.1.2.- DISPLAY 3 PARAMETERS. ......................................................................................................... 63
5.1.3.- DISPLAY 4 PARAMETERS. ......................................................................................................... 79
5.1.4.- PHASORS. ...................................................................................................................................96
5.1.5.- STANDARD PHASORS............................................................................................................... 97
5.1.6.- HARMONICS. ............................................................................................................................... 98
5.1.7.- INTEGRATED FUNCTIONS. ...................................................................................................... 100
5.1.8.- EXPANSION MODULES. .......................................................................................................... 101
5.2.- ENERGY CLOSES MENU ..............................................................................................................103
5.2.1.- ACTIVE ENERGY CLOSES III OF THE TOTAL TARIFF AND OF REACTIVE ENERGY III
OF THE TOTAL TARIFF. ............................................................................................................................ 104
5.3.- ALARM MENU .................................................................................................................................105
5.4.- LOG MENU .....................................................................................................................................107
5.4.1.- ALARM LOG..............................................................................................................................108
5.4.2.- EVENT LOG ............................................................................................................................... 109
5.5.- INFORMATION MENU .................................................................................................................... 110
5.5.1.- SYSTEM INFORMATION........................................................................................................... 111
5.5.2.- INTEGRATED FUNCTIONS. ..................................................................................................... 112
5.5.3.- EXPANSION MODULES. .......................................................................................................... 113
5.5.4.- CIRCUTOR S.A. ........................................................................................................................ 123
5.6.- SETUP MENU ..................................................................................................................................124
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5.6.1.- DATE AND TIME........................................................................................................................ 126
5.6.2.- TIME ZONE...............................................................................................................................127
5.6.3.- LANGUAGE...............................................................................................................................128
5.6.4.- ACCESS KEY..............................................................................................................................129
5.6.5.- MEASUREMENT CONNECTION MODE. .................................................................................130
5.6.6.- RATIO OF VOLTAGE TRANSFORMERS. ................................................................................ 131
5.6.7.- RATIO OF CURRENT TRANSFORMERS. ............................................................................... 133
5.6.8.- INSTALLATION DATA. .............................................................................................................. 135
5.6.9.- DISPLAY OF VARIABLES......................................................................................................... 136
5.6.10.- DEMAND. ................................................................................................................................. 137
5.6.11.- ENERGY CONSUMPTION COSTS. ........................................................................................ 138
5.6.12.- ENERGY GENERATION COSTS. ...........................................................................................140
5.6.13.- CO2CONSUMPTION EMISSIONS.......................................................................................... 141
5.6.14.- CO2GENERATION EMISSIONS. ............................................................................................ 143
5.6.15.- RELAY DIGITAL OUTPUTS. ................................................................................................... 144
5.6.16.- TRANSISTOR DIGITAL OUTPUTS.........................................................................................152
5.6.17.- DIGITAL INPUTS. .................................................................................................................... 161
5.6.18.- INTEGRATED COMMUNICATIONS........................................................................................ 167
5.6.19.- PARAMETER RESET. ............................................................................................................. 172
5.6.20.- USER INTERFACE .................................................................................................................. 173
5.6.21.- EXPANSION MODULES. ........................................................................................................ 175
6.- INTEGRATED COMMUNICATIONS..............................................................................................................176
6.1.- CONNECTIONS.....................................................................................................................................176
6.2.- MODBUS PROTOCOL..........................................................................................................................177
6.2.1.- EXAMPLE OF MODBUS QUERY ................................................................................................... 178
6.3.- MODBUS MEMORY MAP .....................................................................................................................178
6.3.1.- MEASUREMENT VARIABLES........................................................................................................178
6.3.2.- CURRENT ENERGY VARIABLES .................................................................................................. 180
6.3.3.- MAXIMUM DEMAND VARIABLES ................................................................................................. 184
6.3.4.- VOLTAGE AND CURRENT HARMONICS......................................................................................185
6.3.5.- COST VARIABLES.......................................................................................................................... 187
6.3.6.- ANGLE VARIABLES ....................................................................................................................... 187
6.3.7.- UNIT CONFIGURATION VARIABLES ............................................................................................ 188
6.3.8.- OTHER UNIT VARIABLES.............................................................................................................. 201
6.3.9.- DELETING PARAMETERS ............................................................................................................. 204
6.4.- BACnet PROTOCOL.............................................................................................................................205
6.5.- PICS MAP..............................................................................................................................................206
7.- EXPANSION MODULES ...............................................................................................................................209
7.1.- INSTALLATION ......................................................................................................................................209
7.2.- RELAY DIGITAL INPUTS/OUTPUTS.....................................................................................................213
7.2.1.- CONNECTION TERMINALS .......................................................................................................... 213
7.2.2.- CONNECTION DIAGRAMS ............................................................................................................ 214
7.2.3.- CONFIGURATION ........................................................................................................................... 215
7.2.4.- MODBUS COMMUNICATIONS....................................................................................................... 219
7.3.- TRANSISTOR DIGITAL INPUTS/OUTPUTS ......................................................................................... 227
7.3.1.- CONNECTION TERMINALS ........................................................................................................... 227
7.3.2.- CONNECTION DIAGRAMS ............................................................................................................ 228
7.3.3.- CONFIGURATION ........................................................................................................................... 229
7.3.4.- COMUNICACIONES MODBUS....................................................................................................... 232
7.4.- ANALOGUE INPUTS/OUTPUTS ........................................................................................................... 243
7.4.1.- CONNECTION TERMINALS ........................................................................................................... 243
7.4.2.- CONNECTION DIAGRAMS ............................................................................................................ 245
7.4.3.- CONFIGURATION ........................................................................................................................... 246
7.4.4.- MODBUS COMMUNICATIONS....................................................................................................... 254
7.5.- MODBUS/TCP BRIDGE COMMUNICATIONS MODULE ...................................................................... 259
7.5.1.- CONNECTION TERMINALS ........................................................................................................... 259
7.5.2.- LEDs ...............................................................................................................................................259
7.5.3.- CONNECTION DIAGRAM............................................................................................................... 260
7.5.4.- CONFIGURATION ........................................................................................................................... 260
7.5.5.- MODBUS COMMUNICATIONS....................................................................................................... 267
7.6.- LONWORKS COMMUNICATIONS MODULE........................................................................................ 268
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7.6.1.- CONNECTION TERMINALS ........................................................................................................... 268
7.6.2.- CONNECTION DIAGRAM............................................................................................................... 268
7.6.3.- CONFIGURATION ........................................................................................................................... 269
7.6.4.- MODBUS COMMUNICATIONS....................................................................................................... 271
7.6.5.- LIST OF LONWORKS LOGS.......................................................................................................... 272
7.7.- PROFIBUS COMMUNICATIONS MODULE........................................................................................... 280
7.7.1.- CONNECTION TERMINALS ........................................................................................................... 280
7.7.2.- LEDs ............................................................................................................................................... 280
7.7.3.- CONNECTION DIAGRAM............................................................................................................... 281
7.7.4.- CONFIGURATION ........................................................................................................................... 282
7.7.5.- MODBUS COMMUNICATIONS....................................................................................................... 284
7.7.6.- VARIABLES PROFIBUS GSD FILE .............................................................................................. 284
7.8.- MBUS COMMUNICATIONS MODULE................................................................................................... 290
7.8.1.- CONNECTION TERMINALS ........................................................................................................... 290
7.8.2.- CONNECTION DIAGRAM............................................................................................................... 290
7.8.3.- CONFIGURATION ........................................................................................................................... 291
7.8.4.- MODBUS COMMUNICATIONS....................................................................................................... 293
7.8.5.- M-BUS COMMUNICATIONS........................................................................................................... 294
7.9.- DATA STORAGE MODULE, DATALOGGER.......................................................................................... 296
7.9.1.- CONNECTION TERMINALS ........................................................................................................... 296
7.9.2.- LEDs ............................................................................................................................................... 296
7.9.3.- CONNECTION DIAGRAM............................................................................................................... 297
7.9.4.- CONFIGURATION ........................................................................................................................... 298
7.9.5.- MODBUS COMMUNICATIONS....................................................................................................... 303
7.10.- MODBUS/TCP Switch COMMUNICATIONS MODULE ...................................................................... 304
7.10.1.- CONNECTION TERMINALS ......................................................................................................... 304
7.10.2.- LEDs ............................................................................................................................................. 304
7.10.3.- CONNECTION DIAGRAM............................................................................................................. 305
7.10.4.- CONFIGURATION ......................................................................................................................... 305
7.10.5.- MODBUS COMMUNICATIONS..................................................................................................... 309
8.- SOFTWARE UPDATE ................................................................................................................................... 310
8.1.- UNIT SOFTWARE UPDATE................................................................................................................... 311
8.2.- EXPANSION MODULES UPDATE......................................................................................................... 311
9.- TECHNICAL FEATURES .............................................................................................................................. 313
10.- TECHNICAL FEATURES OF EXPANSION MODULES.............................................................................. 317
10.1.- TRANSISTOR DIGITAL INPUTS/OUTPUTS ....................................................................................... 317
10.2.- RELAY DIGITAL INPUTS/OUTPUTS................................................................................................... 318
10.3.- DIGITAL ANALOGUE INPUTS/OUTPUTS .......................................................................................... 319
10.4.- MODBUS TCP (Bridge) COMMUNICATIONS..................................................................................... 320
10.5.- LONWORKS COMMUNICATIONS ...................................................................................................... 321
10.6.- PROFIBUS COMMUNICATIONS ......................................................................................................... 322
10.7.- MBUS COMMUNICATIONS ................................................................................................................. 323
10.8.- DATA STORAGE, DATALOGGER ....................................................................................................... 324
10.9.- MODBUS TCP (Switch) COMMUNICATIONS..................................................................................... 325
11.- MAINTENANCE AND TECHNICAL SERVICE............................................................................................ 327
12.- GUARANTEE............................................................................................................................................... 327
13.- CE CERTIFICATE........................................................................................................................................ 328
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Instruction Manual

REVISION LOG
Table 1: Revision log.
Date Revision Description
06/14 M010B01-03-14A Initial Version
05/15 M010B01-03-15A
Introduction of expansion modules:
M-CVM-AB-Modbus TCP (Bridge),
M-CVM-AB-LON
M-CVM-AB-Probus
M-CVM-AB-MBus
M-CVM-AB-Datalogger
Changes in the following sections:
3.5. - 4.4.1.- 5.1. - 5.3. - 5.4.- 5.5.3.3. - 5.6.- 6.3. - 6.4. - 7.5.4. - 7.5.5. -
7.8. - 9
07/15 M010B01-03-15B Changes in the following sections:
7.3.1. - 9.
12/15 M010B01-03-15C Changes in the following sections:
3.3.2.- 3.4.- 9.
12/15 M010B01-03-15D Changes in the following sections:
3.2. - 3.5. - 5.6.3. - 5.6.20. - 6.3.7.3. - 6.3.7.16. - 6.5. - 9
07/16 M010B01-03-16A Changes in the following sections:
2.- 5.5.3.8. - 7.10. - 8.2. - 10.9. - 13.
08/16 M010B01-03-16B Changes in the following sections:
7.9.4 1. - 7.9.4.2.
10/16 M010B01-03-16C Changes in the following sections:
3.5. - 4.4. - 5. - 5.2. - 5.2.1. - 5.3. - 5.6. - 5.6.3. - 7.9.4.
Note: Device images are for illustrative purposes only and may differ from the actual device.
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Instruction Manual
CVM-B100 - CVM-B150

1.- VERIFICATION UPON RECEPTION
Check the following points upon receiving the unit:
a) The unit meets the specications described in your order.
b) The unit has not suffered any damage during transport.
c) Perform an external visual inspection of the unit prior to switching it on.
d) Check that it has been delivered with the following:
- An installation guide,
- 4 Retainers used to attach the unit,
- 5 plug-in connectors with screws,
- 1 seal,
If any problem is noticed upon reception, immediately contact the transport
company and/or CIRCUTOR's after-sales service.
2.- PRODUCT DESCRIPTION
The CVM-B unit measures, calculates and displays the main electrical parameters in sin-
gle-phase networks, with and without neutral two-phase networks, balanced three-phase net-
works, with ARON measurement or unbalanced networks. The measurement is taken in RMS,
via four AC voltage inputs and four current inputs.
The current measurement is taken indirectly with transformers /5, /1 or with efcient transform-
ers from the MC1 and MC3 series.
It is a modular unit that can be expanded using expansion modules with different functions.
There are 2 unit models:
CVM-B100, with a 3.5’’ display.
CVM-B150, with a 5.6’’ display.
The unit features:
- 3 keys that allow you to browse between the various screens and program
the unit.
- 3 indicator LEDs: CPU, ALARM and on the navigation keys.
- LCD Display, for displaying all parameters.
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- 2 digital inputs, to select the tariff, detect the logic state of external signals or as act
as an impulse input.
- 2 transistor digital outputs, fully programmable.
- 2 relay digital outputs, fully programmable.
- RS-485 communications, with two serial protocols: MODBUS RTU ® and BACnet.
The CVM-B can be expanded with the following expansion modules:
 M-CVM-AB-8I-8OTR, expansion module with 8 transistor digital inputs and 8 tran-
sistor digital outputs.
M-CVM-AB-8I-8OR, expansion module with 8 relay digital inputs and 8 relay digital
outputs.
M-CVM-AB-4AI-8AO, expansion module with 4 analogue inputs and 8 analogue out
puts.
M-CVM-AB-Modbus/TCP(Bridge), expansion module for connecting the unit to a
Modbus/TCP network and as an Ethernet to RS-485 gateway.
M-CVM-AB-LON, expansion module for connecting the unit to a LonWorks network.
M-CVM-AB-Probus, expansion module for connecting the unit to a Probus network.
M-CVM-AB-MBus, expansion module for connecting the unit to a M-Bus network.
M-CVM-AB-Datalogger, expansion module that can be used to store data in the em-
bedded PowerStudio platform integrated in the module.
M-CVM-AB-Modbus/TCP(Switch), expansion module for connecting the unit to a
Modbus/TCP network and as an Ethernet to Ethernet gateway.
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CVM-B100 - CVM-B150

3.- UNIT INSTALLATION
3.1.- PRIOR RECOMMENDATIONS
In order to use the unit safely, it is critical that individuals who handle it follow the
safety measures set out in the standards of the country where it is being used,
use the necessary personal protective equipment, and pay attention to the vari-
ous warnings indicated in this instruction manual.
The CVM-B unit must be installed by authorised and qualied staff.
The power supply plug must be disconnected and measuring systems switched off before han-
dling, altering the connections or replacing the unit. It is dangerous to handle the unit while it is
powered.
Also, it is critical to keep the cables in perfect condition in order to avoid accidents, personal
injury and damage to installations.
The manufacturer of the unit is not responsible for any damage resulting from failure by the
user or installer to observe the warnings and/or recommendations set out in this manual, nor for
damage resulting from the use of non-original products or accessories or those made by other
manufacturers.
If an anomaly or malfunction is detected in the unit, do not use it to take any measurements.
Inspect the work area before taking any measurements. Do not take measurements in danger-
ous areas or where there is a risk of explosion.
Disconnect the unit from the power supply (unit and measuring system power
supply) before maintaining, repairing or handling the unit's connections.
Please contact the after-sales service if you suspect that there is an operational
fault in the unit.
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Instruction Manual

3.2.- INSTALLATION
The unit is installed on a panel. All connections are located inside the electric panel.
Table 2: Panel drill holes for installation.
Model Panel drill hole (according to DIN 43700)
CVM-B100 92+0.8 x 92+0.8 mm
CVM-B150 138+0.8 x 138+0.8 mm
Terminals, opening covers or removing elements can expose parts that are
hazardous to the touch while the unit is powered. Do not use the unit until it is
fully installed.
The unit must be connected to a power circuit that is protected with gL fuses (IEC 269) or M
fuses, with a rating of 1 to 2 A. It must be tted with a circuit breaker or equivalent device for
disconnecting the unit from the power supply mains.
The power and voltage measuring circuit must be connected with cables that have a minimum
cross-section of 1mm2 and the wires must to endure a temperature at least 77 degrees.
The secondary line of the current transformer will have a minimum cross-section of 2.5 mm2.
Current needs to be measured via external current transformers providing reinforced insulation.
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CVM-B100 - CVM-B150

3.3.- UNIT TERMINALS
The CVM-B terminals are distributed between the upper and lower face of the unit.
3.3.1.- TERMINALS ON THE UPPER FACE
Table 3:List of terminals on the upper face of the CVM-B.
Terminals of the top side of the unit
1: VREF, Reference voltage input 10: T1, Digital output of transistor 1
2: NREF, Reference voltage neutral 11: T2, Digital output of transistor 2
3: N, Voltage input neutral 12: TC, Common digital output of transistor
4: VL3,Voltage input L3 13: A(+), RS485
5: VL2, Voltage input L2 14: B(-), RS485
6: VL1, Voltage input L1 15: S, GND for RS-485
7: I1, Digital input 1 16, 17: R1, Relay digital output 1
8: I2, Digital input 2 18, 19: R2, Relay digital output 2
9: Ic, for digital inputs
1234 5 6
7
10
9
12
11 13
14
15
8
16 17 18 19
Figure 1: CVM-Bx terminals, upper face.
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Instruction Manual

3.3.2.- TERMINALS ON THE LOWER FACE
Table 4:List of terminals on the lower face of the CVM-B.
Unit terminals
20 : Auxiliary power supply.
~ +, CVM-Bxxx-ITF
-, CVM-Bxxx-ITF-SDC
25: S2, Current input L2
21: Auxiliary power supply.
~ -, CVM-Bxxx-ITF
+, CVM-Bxxx-ITF-SDC
26: S1 , Current input L3
22: S1 , Current input L1 27: S2, Current input L3
23: S2, Current input L1 28: S1, Neutral current input, LN
24: S1 , Current input L2 29: S2, Neutral current input, LN
20 21
22 23 24 25 26 27 28 29
Figure 2:CVM-B terminals, lower face.
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CVM-B100 - CVM-B150

3.4.- CONNECTION DIAGRAMS
3.4.1.- THREE-PHASE NETWORK MEASUREMENT WITH A 4-WIRE CONNECTION.
Measurement system:
Secondary winding of the current transformer: (MC1 type transformer)
Secondary winding of the neutral current transformer:
Power
Supply
VL1
L1
L2
L3
N V L3 L2 V L1 V
VL1 VL2 VL3
ab
A B
ab
AB
S1 S2 S1 S2 S1 S2
L1
P1 P2
L2 L3
P1 P2 P1 P2
S1 S2
LN
P1 P2
NV REF REF
N
S1 S2
P1 P2
POWER SUPPLY
VL2 VL3 NVREF
NREF
ab
AB
VREF
NREF
S1 S2
P1 P2 S1 S2
P1 P2 S1 S2
P1 P2
LOAD
Figure 3: Three-phase measuring with a 4-wire connection (transformer secondary: /1A, /5A or MC1 (/0.250)).
Note: The unit can calculate the neutral current without having to measure it, option: Calculated
current .
The MC1 transformer secondary value is set to 0.250 A
The transformer for measuring the LN neutral current cannot be MC type.
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CVM-B100 - CVM-B150
Instruction Manual

Measurement system:
Secondary winding of the current transformer: (MC3 type transformer)
Secondary winding of the neutral current transformer:
Power
Supply
VL1
L1
L2
L3
N V L3 L2 V L1 V
VL1 VL2 VL3
ab
A B
ab
AB
3P1 2P1 1P1
3P2 2P2 1P2 Brown/Green
Grey/Pink
Green/White
Red/Blue
S1 S2 S1 S2 S1 S2
L1
P1 P2
L2 L3
P1 P2 P1 P2
S1 S2
LN
P1 P2
NV REF REF
N
S1 S2
P1 P2
POWER SUPPLY
VL2 VL3 NVREF
NREF
ab
AB
VREF
NREF
LOAD
Figure 4: Three-phase measuring with a 4-wire connection (MC3 type transformer (/0.250)).
Note: The unit can calculate the neutral current without having to measure it, option: Calculated
current .
The MC3 transformer secondary value is set to 0.250 A.
The transformer for measuring the LN neutral current cannot be
MC type.
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Instruction Manual
CVM-B100 - CVM-B150

3.4.2.- THREE-PHASE NETWORK MEASUREMENT WITH A 3-WIRE CONNECTION.
Measurement system:
Secondary winding of the current transformer: (MC1 type transformer)
Power
Supply
VL1 VL2 VL3
L1
L2
L3
N V L3 L2 V L1 V
VL1 VL2 VL3
ab
A B
ab
A B
S1 S2 S1 S2 S1 S2
L1
P1 P2
L2 L3
P1 P2 P1 P2
S1 S2
LN
P1 P2
NV REF REF
S1 S2
P1 P2 S1 S2
P1 P2 S1 S2
P1 P2
POWER SUPPLY
LOAD
Figure 5: Three-phase measuring with a 3-wire connection (transformer secondary: /1A, /5A or MC1 (/0.250)).
The MC1 transformer secondary value is set to 0.250 A
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Measurement system:
Secondary winding of the current transformer: (MC3 type transformer)
Power
Supply
VL1 VL2 VL3
L1
L2
L3
POWER SUPPLY
N V L3 L2 V L1 V
VL1 VL2 VL3
ab
AB
ab
A B
3P1 2P1 1P1
3P2 2P2 1P2 Brown/Green
Grey/Pink
Green/White
Red/Blue
S1 S2 S1 S2 S1 S2
L1
P1 P2
L2 L3
P1 P2 P1 P2
S1 S2
LN
P1 P2
NV REF REF
LOAD
Figure 6: Three-phase measuring with a 3-wire connection (MC3 type transformer (/0.250)).
The MC3 transformer secondary value is set to 0.250 A
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Instruction Manual
CVM-B100 - CVM-B150

3.4.3.- THREE-PHASE NETWORK MEASUREMENT WITH A 3-WIRE CONNECTION AND
TRANSFORMERS WITH AN ARON CONNECTION.
Measurement system:
Secondary winding of the current transformer: (MC1 type transformer)
Power
Supply
VL1 VL2 VL3
L1
L2
L3
N V L3 L2 V L1 V
VL1 VL2 VL3
ab
A B
ab
A B
S1 S2 S1 S2 S1 S2
L1
P1 P2
L2 L3
P1 P2P1 P2
S1 S2
LN
P1 P2
NV REF REF
S1 S2
P1 P2
S1 S2
P1 P2
POWER SUPPLY
LOAD
Figure 7: Three-phase measuring with a 3-wire connection and transformers in an ARON connection (transformer
secondary: /1A, /5A or MC1 (/0.250)).
The MC1 transformer secondary value is set to 0.250 A
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Instruction Manual

3.4.4.- TWO-PHASE NETWORK MEASUREMENT WITH A 3-WIRE CONNECTION.
Measurement system:
Secondary winding of the current transformer: (MC1 type transformer)
Secondary winding of the neutral current transformer:
Power
Supply
VL1
L1
L2
N V L3 L2 V L1 V
VL1 VL2
ab
A B
ab
AB
S1 S2 S1 S2 S1 S2
L1
P1 P2
L2 L3
P1 P2 P1 P2
S1 S2
LN
P1 P2
NV REF REF
N
S1 S2
P1 P2
POWER SUPPLY
VL2 NVREF
NREF
ab
AB
VREF
NREF
S1 S2
P1 P2 S1 S2
P1 P2
N
LOAD
Figure 8: Two-phase measuring with a 3-wire connection (transformer secondary: /1A, /5A or MC1 (/0.250)).
Note: The unit can calculate the neutral current without having to measure it, option: Calculated
current .
The MC1 transformer secondary value is set to 0.250 A
The transformer for measuring the LN neutral current cannot be MC type.
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Instruction Manual
CVM-B100 - CVM-B150

3.4.5.- SINGLE-PHASE NETWORK MEASUREMENT, PHASE TO PHASE, WITH A 2-WIRE
CONNECTION.
Measurement system:
Secondary winding of the current transformer: (MC1 type transformer)
Power
Supply
L1
L2
N V L3 L2 V L1 V
VL1
S1 S2 S1 S2 S1 S2
L1
P1 P2
L2 L3
P1 P2 P1 P2
S1 S2
LN
P1 P2
NV REF REF
S1 S2
P1 P2
POWER SUPPLY
VL2
LOAD
Figure 9: Phase to phase single-phase measuring with a 2-wire connection (transformer secondary: /1A, /5A or MC1
(/0.250)).
The MC1 transformer secondary value is set to 0.250 A
20
CVM-B100 - CVM-B150
Instruction Manual