Bender LINETRAXX VMD461 User manual

Manual
EN
VMD461with coupling device CD440
LINETRAXX®
VMD461_D00314_01_M_XXEN/10.2018
Multifunctional voltage relay for DC, 1AC, 3(N)AC systems
Underfrequency 81<U*, overfrequency 81>O*, overvoltage 59*,
undervoltage 27*, phase sequence 47*, unbalance 47*, vector shift78*,
ROCOF df/dt 81R*
* ANSI codes
Software version, measurement technology: D570 V1.2x
Software version, display: D256 V2.3x

Bender GmbH & Co. KG
P.O. Box 1161 • 35301 Gruenberg • Germany
Londorfer Strasse 65 • 35305 Gruenberg • Germany
Tel.: [phone] • Fax: [phone]
E-Mail: [email protected] • www.bender.de
©Bender GmbH & Co. KG
All rights reserved.
Reprinting only with permission of the publisher.
Subject to change!
Photos: Bender archives

Table of Contents
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VMD461_D00314_01_M_XXEN/10.2018
1. Important information .................................................................................... 7
1.1 How to use this manual ................................................................................. 7
1.2 Technical support: service and support ................................................... 8
1.2.1 First level support ............................................................................................. 8
1.2.2 Repair service ..................................................................................................... 8
1.2.3 Field service ........................................................................................................ 9
1.3 Training courses ............................................................................................. 10
1.4 Delivery conditions ....................................................................................... 10
1.5 Inspection, transport and storage ........................................................... 10
1.6 Warranty and liability ................................................................................... 11
1.7 Disposal ............................................................................................................ 12
2. Safety instructions ......................................................................................... 13
2.1 General safety instructions ........................................................................ 13
2.2 Work activities on electrical installations ............................................. 13
2.3 Intended use ................................................................................................... 14
3. Function ........................................................................................................... 15
3.1 Device features .............................................................................................. 15
3.2 Glossary ............................................................................................................. 16
3.3 Functional description ................................................................................ 17
4. Installation and connection ......................................................................... 19
4.1 Fuses .................................................................................................................. 19
4.2 Installation instructions .............................................................................. 20
4.3 Schematic diagram ....................................................................................... 20
4.4 System structure ............................................................................................ 21
4.5 Dimension diagram VMD461 .................................................................... 21
4.6 Dimension diagram CD440 ....................................................................... 22

Table of Contents
4VMD461_D00314_01_M_XXEN/10.2018
4.7 Mounting on DIN rail .................................................................................... 22
4.8 Screw mounting ............................................................................................ 23
4.8.1 VMD461 ............................................................................................................ 23
4.8.2 CD440 ................................................................................................................ 23
4.9 Wiring diagram .............................................................................................. 24
4.9.1 DC: VMD461 with CD440 ............................................................................ 25
4.9.2 AC: VMD461 with CD440 (earthed system) ......................................... 26
4.9.3 AC: VMD461 with CD440 (unearthed system) .................................... 27
4.9.4 3(N)AC: VMD461 with CD440 (earthed system) ................................ 28
4.9.5 3(N)AC: VMD461 with CD440 (unearthed system) ........................... 29
4.9.6 Example: VMD461 with 2 circuit breakers ............................................ 31
4.9.7 Details regarding the digital inputs (D1, D2, RT1) ............................. 33
4.9.8 Details regarding the internal resistance .............................................. 33
4.10 Commissioning .............................................................................................. 34
4.11 Trigger circuit test by the system erector ............................................. 34
5. Operation and configuration ...................................................................... 35
5.1 Getting to know the user interface ......................................................... 35
5.2 Various displays ............................................................................................. 36
5.2.1 Standard display ............................................................................................ 36
5.2.2 Info display ...................................................................................................... 37
5.2.3 Alarm display .................................................................................................. 37
5.2.4 Menu display ................................................................................................... 37
5.2.5 Toggling between the individual displays ........................................... 38
5.3 INFO button ..................................................................................................... 39
5.4 MENU button .................................................................................................. 39
6. Menu ................................................................................................................ 41
6.1 Menu "1. Alarm/meas. values" .................................................................. 42
6.2 Menu "2. History" ........................................................................................... 43
6.3 Menu "3. Settings" ......................................................................................... 44
6.3.1 General: Password protection .................................................................. 44
6.3.2 Procedure ......................................................................................................... 44

Table of Contents
5VMD461_D00314_01_M_XXEN/10.2018
6.3.3 Menu structure "3. Settings" ...................................................................... 45
6.3.4 Explanatory comments on individual menu items ........................... 52
6.4 Menu "4. System" ........................................................................................... 62
6.4.1 Menu structure "4. System" ....................................................................... 62
6.4.2 Explanatory comments on individual menu items ........................... 64
6.5 Menu "5. Info" ................................................................................................. 65
6.6 Operation via web user interface ............................................................ 65
7. Maintenance, troubleshooting, messages ............................................... 67
7.1 Manual self test .............................................................................................. 67
7.2 Messages and malfunctions ...................................................................... 68
7.3 LEDs .................................................................................................................... 69
8. Technical data VMD461 ............................................................................... 71
8.1 Standards, approvals and certifications ................................................ 77
8.2 Ordering details ............................................................................................. 77
INDEX .................................................................................................................... 81

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VMD461_D00314_01_M_XXEN/10.2018
1. Important information
1.1 How to use this manual
Always keep this manual within easy reach for future reference.
To make it easier for you to understand and revisit certain sections in this man-
ual, we have used symbols to identify important instructions and information.
The meaning of these symbols is explained below:
This manual has been compiled with great care. It might nevertheless contain
errors and mistakes. Bender cannot accept any liability for injury to persons or
damage to property resulting from errors or mistakes in this manual.
This manual is intended for qualified personnel working in
electrical engineering and electronics!
This signal word indicates that there is a high risk of danger
that will result in electrocution or serious injury if not
avoided.
This signal word indicates a medium risk of danger that
can lead to death or serious injury if not avoided.
This signal word indicates a low-level risk that can result in
minor or moderate injury or damage to property if not
avoided.
This symbol denotes information intended to assist the user
in making optimum use of the product.
DANGER
WARNING
CAUTION

Important information
8VMD461_D00314_01_M_XXEN/10.2018
1.2 Technical support: service and support
For commissioning and troubleshooting Bender offers you:
1.2.1 First level support
Technical support by phone or e-mail for all
Bender products
 Questions concerning specific customer applications
 Commissioning
 Troubleshooting
Telephone: [phone]*
Fax: [phone]
In Germany only: 0700BenderHelp (Tel. and Fax)
E-mail: [email protected]
1.2.2 Repair service
Repair, calibration, update and replacement service for Bender products
 Repairing, calibrating, testing and analysing Bender products
 Hardware and software update for Bender devices
 Delivery of replacement devices in the event of faulty or incorrectly
delivered Bender devices
 Extended guarantee for Bender devices, which includes an in-house
repair service or replacement devices at no extra cost
Telephone: [phone]** (technical issues)
[phone]**, -785** (sales)
Fax: [phone]
E-mail: [email protected]
Please send the devices for repair to the following address:
Bender GmbH, Repair-Service,
Londorfer Straße 65,
35305 Grünberg

Important information
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VMD461_D00314_01_M_XXEN/10.2018
1.2.3 Field service
On-site service for all Bender products
 Commissioning, configuring, maintenance, troubleshooting for Bender
products
 Analysis of the electrical installation in the building (power quality test,
EMC test, thermography)
 Training courses for customers
Telephone: [phone]**, -762 **(technical issues)
[phone]** (sales)
Fax: [phone]
E-mail: [e-mail]
Internet: www.bender.de
*Available from 7.00 a.m. to 8.00 p.m. 365 days a year (CET/UTC+1)
**Mo-Thu 7.00 a.m. - 8.00 p.m., Fr 7.00 a.m. - 13.00 p.m.

Important information
10 VMD461_D00314_01_M_XXEN/10.2018
1.3 Training courses
Bender is happy to provide training regarding the use of test equipment.
The dates of training courses and workshops can be found on the Internet at
www.bender-de.com -> Know-how -> Seminars.
1.4 Delivery conditions
Bender sale and delivery conditions apply.
For software products the "Softwareklausel zur Überlassung von Standard-
Software als Teil von Lieferungen, Ergänzung und Änderung der Allgemeinen
Lieferbedingungen für Erzeugnisse und Leistungen der Elektroindustrie"
(software clause in respect of the licensing of standard software as part of de-
liveries, modifications and changes to general delivery conditions for prod-
ucts and services in the electrical industry) set out by the ZVEI (Zentralverband
Elektrotechnik- und Elektronikindustrie e. V.) (German Electrical and Electron-
ic Manufacturer's Association) also applies.
Sale and delivery conditions can be obtained from Bender in printed or elec-
tronic format.
1.5 Inspection, transport and storage
Inspect the dispatch and equipment packaging for damage, and compare the
contents of the package with the delivery documents. In the event of damage
in transit, please contact Bender immediately.
The devices must only be stored in areas where they are protected from dust,
damp, and spray and dripping water, and in which the specified storage tem-
peratures can be ensured.

Important information
11
VMD461_D00314_01_M_XXEN/10.2018
1.6 Warranty and liability
Warranty and liability claims in the event of injury to persons or damage to
property are excluded if they can be attributed to one or more of the follow-
ing causes:
 Improper use of the device.
 Incorrect mounting, commissioning, operation and maintenance of the
device.
 Failure to observe the instructions in this operating manual regarding
transport, commissioning, operation and maintenance of the device.
 Unauthorised changes to the device made by parties other than the
manufacturer.
 Non-observance of technical data.
 Repairs carried out incorrectly and the use of replacement parts or
accessories not approved by the manufacturer.
 Catastrophes caused by external influences and force majeure.
 Mounting and installation with device combinations not recom-
mended by the manufacturer.
This operating manual, especially the safety instructions, must be observed by
all personnel working on the device. Furthermore, the rules and regulations
that apply for accident prevention at the place of use must be observed.

Important information
12 VMD461_D00314_01_M_XXEN/10.2018
1.7 Disposal
Abide by the national regulations and laws governing the disposal of this de-
vice. Ask your supplier if you are not sure how to dispose of the old equip-
ment.
The directive on waste electrical and electronic equipment (WEEE directive)
and the directive on the restriction of certain hazardous substances in electri-
cal and electronic equipment (RoHS directive) apply in the European Commu-
nity. In Germany, these policies are implemented through the "Electrical and
Electronic Equipment Act" (ElektroG). According to this, the following applies:
 Electrical and electronic equipment are not part of household waste.
 Batteries and accumulators are not part of household waste and must
be disposed of in accordance with the regulations.
 Old electrical and electronic equipment from users other than private
households which was introduced to the market after 13 August 2005
must be taken back by the manufacturer and disposed of properly.
For more information on the disposal of Bender devices, refer to our website
at www.bender-de.com -> Service & support.

13
VMD461_D00314_01_M_XXEN/10.2018
2. Safety instructions
2.1 General safety instructions
Part of the device documentation in addition to this manual is the enclosed
"Safety instructions for Bender products".
2.2 Work activities on electrical installations
If the device is used outside the Federal Republic of Germany, the applicable
local standards and regulations must be complied with. The European stand-
ard EN 50110 can be used as a guide.
Only qualified personnel are permitted to carry out the
work necessary to install, commission and run a device or
system.
Risk of electrocution due to electric shock!
Touching live parts of the system carries the risk of:
 An electric shock
 Damage to the electrical installation
 Destruction of the device
Before installing and connecting the device, make sure
that the installation has been de-energised. Observe the
rules for working on electrical installations.
DANGER

Safety instructions
14 VMD461_D00314_01_M_XXEN/10.2018
2.3 Intended use
The multifunctional voltage monitoring relay VMD461 monitors frequencies,
undervoltages and overvoltages in DC, AC and 3(N)AC systems. The phase
voltages and/or line-to-line voltages are measured as r.m.s. value and are con-
tinuously shown on the device display. The measured value required to trig-
ger the alarm relay is stored. The VMD461 features additional measuring
functions for:
 ROCOF df/dt
 Vector shift monitoring
 Unbalance monitoring
 Phase sequence monitoring
The corresponding ANSI codes for all available measuring functions are pro-
vided.
Configurable delay times allow considering special installation-specific prop-
erties (e.g. device-specific start-up procedures).
The VMD461 requires an external supply voltage.
The optional use of a CD440 coupling device extends the voltage range that
can be monitored to DC/3AC 1200 V or 1AC/3NAC 690 V.
In order to meet the requirements of applicable standards, the equipment
must be adjusted to local equipment and operating conditions by means of
customised parameter settings. Please heed the limits of the range of applica-
tion indicated in the technical data. Any other use than that described in this
manual is regarded as improper.
The coupling ensures that on the VMD461 the maximum
permissible input voltage in systems > 230/400 V is not
exceeded.

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VMD461_D00314_01_M_XXEN/10.2018
3. Function
3.1 Device features
 When combined with a CD440 coupling device, DC systems up to
1200 V, 1AC systems up to 690 V, 3AC systems up to 1200 V and 3NAC
systems up to 690 V can be monitored
 All functions are represented in ANSI codes
 Monitoring of DC, 1AC, 3(N)AC systems DIN EN 60255-1:2010-9
 Single-fault safety
 Unbalance, phase failure and phase sequence monitoring
 Monitoring of the connected switches and/or disconnectors (config-
urable: NC/NO/off)
 Islanding detection df/dt (ROCOF)
 Vector shift function
 RS-485 interface (data exchange/parameter setting/software update)
 Test function to determine the switch-off time
 Test button for the trigger circuit
 The last 300 network faults can be recalled with time stamp/real-time
clock
 Continuous monitoring of the phase voltage and line-to-line voltage
 Special switch-on conditions after an infringement of a response value
 Language selection (German, English, French)
 Backlit graphic LC display
 Password protection for device setting
 Remote shutdown via ripple control signal receiver
 Sealable enclosure

Function
16 VMD461_D00314_01_M_XXEN/10.2018
3.2 Glossary
Terms Description
tstart-up Start-up delay
Once the supply voltage is applied, the start-up delay
tstart-up begins. Measured voltage and frequency val-
ues changing during this time do not influence the
switching state of the alarm relays K1 and K2. At that
moment, the switching state of the alarm relays K1
and K2 depends on the "Start alarm" parameter
(menu: 3.8.4. Start alarm).
ton Switch-on delay
All switch-on conditions have to be met for the dura-
tion of the switch-on delay ton so that the correspond-
ing alarm relay operates.
toff Response delay
Minimum period that a limit value infringement must
exist so that the corresponding alarm relay trips.
t(off) total When the contact monitoring for switches/discon-
nectors is activated, the time until the switch/discon-
nector actually switches off (t(off) total) is additionally
measured during a test.
The longer one of the two switch-off times is indicated
at t(off) total (menu 1.15, see page 42).

Function
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VMD461_D00314_01_M_XXEN/10.2018
3.3 Functional description
Once the supply voltage is applied, the start-up delay tstart-up begins. Meas-
ured voltage and frequency values changing during this time do not influence
the switching state of the alarm relays K1 and K2.
The devices feature three separately adjustable limit values for overvoltage/
undervoltage as well as overfrequency/underfrequency which are respective-
ly linked to their own response delay toff.
If the measured quantity exceeds or falls below the set response value andthe
related response delay toff has elapsed, the relay assigned to the response val-
ue switches and the corresponding LED lights.
Fault memory
When the fault memory is disabled, the device automatically attempts to
switch on:
If the measured quantity falls below or exceeds the release value after the
alarm relays have switched, the set switch-on delay ton starts.
When the fault memory is enabled, the fault must be manually reset on the
device.
df/dt
A passive method for islanding detection (three-phase voltage and frequency
monitoring).
Nominal voltage and overvoltage limit values U>, U>>
and U>>> (ANSI code 59)
By means of the nominal voltage and the overvoltage pa-
rameters, limit values above the maximum voltages of the
measuring circuit (compare "Chapter 8. Technical data
VMD461) can be set.
The user must ensure that the overvoltage limit values
do not exceed the maximum voltages.
CAUTION

Function
18 VMD461_D00314_01_M_XXEN/10.2018
Vector shift
Vector shift detection is triggered by a sudden phase displacement (vector
shift).
Unbalance
The unbalance is calculated between the phase voltages (in conformity with
IEEE) and the line-to-line voltages (in conformity with NEMA). The higher of
the two values will be compared to the specified response value.
Phase sequence
When phase sequence monitoring is enabled, an alarm is triggered in 3(N)AC
systems as soon as the phase sequence no longer matches the specified value.
In DC systems, an alarm is triggered when the polarity no longer matches the
specified value (measurement time approx. 50 ms).
Automatic self test
The device runs a continuous self test during which internal malfunctions are
detected and shown on the display as error codes. The electrical installation is
not disconnected from the mains during this test.
History memory
The device utilises a history memory for fail-safe storing of up to 300 data
records (date, time, channel, event code, measured value).
After reaching 301 data records, the existing data records, starting with the
oldest one, will be overwritten. After manually activating the deletion process
(menu: 4.1. History), the history memory will be irreversibly deleted.

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VMD461_D00314_01_M_XXEN/10.2018
4. Installation and connection
4.1 Fuses
Equip the supply voltage of all system ‐components with fuses. IEC 60364-4-
473 requires protective devices to be used to protect the component in the
event of a short circuit. Bender recommends the use of 6 A fuses.
Only qualified personnel are permitted to carry out the
work necessary to install, commission and run a device or
system.
Danger of electrocution due to electric shock!
Touching live parts of the system carries the risk of:
 An electric shock
 Damage to the electrical installation
 Destruction of the device
Before installing and connecting the device, make sure
that the installation has been de-energised. Observe the
rules for working on electrical installations.
DANGER

Installation and connection
20 VMD461_D00314_01_M_XXEN/10.2018
4.2 Installation instructions
The devices are suitable for the following types of installation:
 Standard distribution panels in accordance with DIN 43871 or DIN rail
mounting in accordance with IEC 60715
 Screw mounting using two M4 screws
4.3 Schematic diagram
Fig. 4.1: Schematic diagram with circuit breakers
Danger of electric shock!
Make sure that the installation area is disconnected from any
electrical source . Consider the data on the rated voltage
and supply voltage as specified in the technical data!
The maximum length of the connecting cable of device
connections DG1/2, D1, D2, RTG and RT1 is 10 m.
In order to ensure the proper functioning of the VMD461 in
the event of a power failure, an external UPS is to be used.
DANGER
Circuit breaker Circuit breaker
VMD461
CD440
(optional)
Public grid