VMD460-NA. Manual. Network and system protection (NS protection) for monitoring the power feed-in of power generation systems

Transcription

1 Manual VMD460-NA Network and system protection (NS protection) for monitoring the power feed-in of power generation systems Software version: D398 V1.2x Display software version: D403 V2.2x VMD460-NA_D00001_02_M_XXEN/

2 Bender GmbH & Co. KG Londorfer Str Gruenberg Germany Postfach Gruenberg Germany Tel.: Fax: Web: Bender GmbH & Co. KG All rights reserved. Reprinting only with permission of the publisher. Subject to change!

3 Table of Contents 1. How to use this manual effectively How to use this manual Technical support: Service and support Workshops Delivery conditions, guarantee, warranty and liability Safety Intended use Electrically skilled person General safety instructions Function Device features Description of function Overvoltage U10> and U> Self test, automatic Manual self test Remote-Trip (RTG/RT1) Delay times ton, toff and short interruption Separate conditions for switching on U(on)max, U(on)min, f(on)max, f(on)min Password protection Factory setting Erasable history memory Detection of islanding (df/dt) (ROCOF) Vector shift detection Unbalance VMD460-NA_D00001_02_M_XXEN/

4 Table of Contents Digital inputs/contact monitoring Coupling Mode Installation, connection and commissioning Unpacking Back-up fuses Instructions for installation Block diagram Dimension diagram VMD460-NA DIN rail mounting Screw mounting Wiring diagram VDE-AR-N 4105, BDEW, C10/11, G59/2, G59/3, G83/2, DIN V VDE V CEI Details regarding the digital inputs (D1 D4, RT1): Standards, selectable Commissioning Trigger circuit test by the system erector Operation and configuration Getting to know the user interface Various displays Standard display Info display Alarm display Menu display Toggling between the individual displays INFO button Menu button Alarm/meas. values History VMD460-NA_D00001_02_M_XXEN/

5 Table of Contents Settings System Info Maintenance, troubleshooting, messages Repeat test of the trigger circuit by the system operator Manual self test Messages and malfunctions LEDs Selectable default settings VDE-AR-N CEI BDEW guideline C10/ G59/ G59/3, G83/ DIN V VDE V Technical data VMD460-NA Standards, approvals and certifications Ordering information INDEX VMD460-NA_D00001_02_M_XXEN/

6 Table of Contents 6 VMD460-NA_D00001_02_M_XXEN/

7 1. How to use this manual effectively 1.1 How to use this manual This operating manual will concern qualified experts in electrical engineering and user of the product and must be kept ready for referencing in the immediate vicinity of the device. To make it easier for you to understand and revisit certain sections of text and instructions in the manual, we have used symbols to identify important instructions and information. The meaning of these symbols is explained below: The warning symbol indicates a potential dangerous situation that may result in bodily injury and/or damage to property. Observe the associated safety instructions. Information intended to assist the user to make optimum use of the product are marked with the Info symbol. This manual has been compiled with great care. It may nevertheless contain errors and mistakes. The Bender Group cannot accept any liability for injury to persons or damage to property resulting from errors or mistakes in this manual. Each of the registered trademarks which appears in this document remains the property of its owner. VMD460-NA_D00001_02_M_XXEN/

8 How to use this manual effectively 1.2 Technical support: Service and support For commissioning and troubleshooting Bender offers you: First level support Technical support by phone or for all Bender products Questions about special customer applications Commissioning Troubleshooting Tel.: * Fax: only available in Germany: 0700BenderHelp (Tel. and Fax) Repair service Repair, calibration, update and replacement service for all Bender products Repair, calibration, testing and analysing Bender products Hardware and software update for Bender devices Delivery of replacement devices for faulty or incorrectly delivered Bender devices Extended warranty for Bender devices with in-house repair service resp. replacement devices at no extra cost Tel.: ** (technical issues) **, -785** (commercial matters) Fax: Please send the devices for repair to the following address: Bender GmbH Repair Service Londorfer Strasse Gruenberg Germany 8 VMD460-NA_D00001_02_M_XXEN/

9 How to use this manual effectively Field service On-site service for all Bender products Commissioning, parameter setting, maintenance, troubleshooting for Bender products Analysis of the electrical installation in the building (power quality test, EMC test, thermography) Practical training courses for customers Tel.: **, -762 **(technical issues) ** (commercial matters) Fax: E mail: fieldservice@bender-service.de Internet: *Available from 7.00 a.m. to 8.00 p.m. on 365 days of the year (CET/UTC+1) **Mo-Thu 7.00 a.m p.m., Fr 7.00 a.m p.m 1.3 Workshops Bender would be happy to provide training in respect of the use of the universal measuring device. Current dates of training courses and workshops can be found on the Internet at -> Know-how -> Seminars. VMD460-NA_D00001_02_M_XXEN/

10 How to use this manual effectively 1.4 Delivery conditions, guarantee, warranty and liability The conditions of sale and delivery set out by Bender 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 deliveries, modifications and changes to general delivery conditions for products and services in the electrical industry) set out by the ZVEI (Zentralverband Elektrotechnik- und Elektronikindustrie e.v., (German Electrical and Electronic Manufacturers' Association) also applies. Conditions of sale and delivery can be obtained from Bender in printed or electronic format. 10 VMD460-NA_D00001_02_M_XXEN/

11 2. Safety 2.1 Intended use The voltage and frequency monitoring relay VMD460-NA is used for system and network protection (NS protection) of CHPs, wind, hydroelectric and photovoltaic systems feeding power into the grid. If inadmissible voltage and frequency values occur on the supply side, the VMD460-NA has the task of disconnecting the power generation system from the distribution network by means of a coupling switch. The voltage and frequency monitoring relay is to be installed and connected directly at the central meter panel. The VMD460- NA utilises a separate supply voltage connection. Power generation systems with an output of > 6 kw require a separate unbalance monitoring. 2.2 Electrically skilled person Only electrically skilled persons are authorised to install and commission this device. Electrically skilled persons are those who have the relevant education, knowledge and experience, as well as knowledge of the relevant safety standards and who are able to perceive risks and to avoid hazards which electricity can create when work activities are carried out on electrical installations. The electrically skilled person is specially trained for carrying out work activities in his specific working environment and has a thorough knowledge of the relevant standards and regulations. In Germany, an electrically skilled person must meet the requirements of the accident prevention regulation BGV A3. In other countries the applicable regulations have to be observed and followed. VMD460-NA_D00001_02_M_XXEN/

12 Safety 2.3 General safety instructions Bender devices are designed and built in accordance with the state of the art and accepted rules in respect of technical safety. However, the use of such devices may introduce risks to the life and limb of the user or third parties and/or result in damage to Bender devices or other property. Danger of electric shock! Touching live parts will cause danger of electric shock with fatal consequences. All work activities on electrical installations as well as installation activities, commissioning activities and work activities with the device in operation may only be carried out by electrically skilled persons! Only use Bender equipment: as intended in perfect working order in compliance with the accident prevention regulations and guidelines applicable at the location of use Eliminate all faults immediately which may endanger safety. Do not make any unauthorised changes and only use replacement parts and optional accessories purchased from or recommended by the manufacturer of the equipment. Failure to observe this requirement can result in fire, electric shock and injury. If the device is overloaded by overvoltage or a short-circuit current load, it must be checked and replaced if necessary. If the device is being used in a location outside the Federal Republic of Germany, the applicable local standards and regulations must be complied with. European standard EN can be used as a guide. 12 VMD460-NA_D00001_02_M_XXEN/

13 Safety Device-specific safety information After commissioning, the essential settings of the VMD460-NA have to be protected against unauthorised changes by a password. If the password protection is not used, the device has to be sealed. VMD460-NA_D00001_02_M_XXEN/

14 Safety 14 VMD460-NA_D00001_02_M_XXEN/

15 Function 3. Function 3.1 Device features Straightforward commissioning by means of default basic programs for national standards and regulations Single-fault safety Monitoring of the connected coupleing switches Islanding detection df/dt (ROCOF) Suitable for networking via BMS bus (RS-485) Remote configuration and remote maintenance using COM460IP and/ or CP700 (RS-485) Support of new standards by software update (RS-485) without removing the device Test function with determination of the disconnection time Vector shift detection Unbalance measurement Monitoring of different types of system: 1AC, 3AC, 3NAC 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 connection conditions after a infringement of a limit value Language selection (German, English, Italian) Backlit graphics LC display Password protection for device setting Remote shutdown via ripple control signal receiver Sealable enclosure VMD460-NA_D00001_02_M_XXEN/

16 Function 3.2 Description of function The power generation system is only allowed to connect to the public grid when the country-specific connection conditions are met. Mains voltage and mains frequency must be within the defined tolerance ranges. The devices utilise several separately adjustable measuring channels for: Voltage drop protection U<, U<< Rise-in-voltage protection U>>, U10> / U> (depending on the standard) Frequency decrease protection f<, f<< Frequency increase protection f>, f>> This satisfies the requirements for static and dynamic network monitoring. In case of infringements of a limit value or a remote trip signal, the relay K1 (and K2, if necessary) switch and the alarm LEDs light. Reconnection to the grid is carried out when the national connection conditions to the grid are met. Pressing the test button ensures that the relays are checked and the required test (trigger test) of the relays K1 and K2 is carried out. Overvoltage limit values U>> and U10> / U> Overvoltage limit values and the nominal voltage parameter (Menu: 3. Settings -->1. General-->3. U(L-N) resp. U(L-L)) can be used to set limit values that are higher than the maximum voltages of the measuring circuit (compare Chapter 8. Technical data VMD460-NA). The user must ensure that these maximum voltages will not be exceeded. 16 VMD460-NA_D00001_02_M_XXEN/

17 Function Overvoltage U10> and U> Average value U10> according to CEI 0-21, VDE-AR-N 4105, C10/11 and DIN V VDE V The overvoltage U10> is determined by averaging the 3-second-intervals over a time of 10 minutes. Always the highest 10-minute average value of the phase voltage of the three monitored and averaged voltages between UL1-N, UL2-N and UL3-N will be indicated as "U10LN". Always the highest 10-minute average value of the line conductor voltage of each of the three monitored and averaged voltages between U L1-L2, U L2-L3 and U L3-L1 will be indicated as "U10LL". Depending on the type of coupling one of the two average values can be deactivated. (Indication: "--") In the standard CEI 0-21 a root-mean-square is calculated acc. to IEC EN , the VDE-AR-N 4105, C10/11 and DIN V VDE V standards use an arithmetical average for calculation. If an average value exceeds the limit value for the duration of the associated response delay t off, the device will trip. Instantaneous value U> According to BDEW, G59/2, G59/3 and G83/2 In this case no average value is calculated. The preset limit value will directly be compared with the phase and line conductor voltages measured. If an average value exceeds the limit value for the duration of the associated response delay t off, the device will trip. The two average values U10LN and U10LL will be blanked (Display indication: "--"). VMD460-NA_D00001_02_M_XXEN/

18 Function Self test, automatic The device runs a continuous self test during which internal malfunctions are detected and shown on the display as error codes. The power generation system will be disconnected from the network Manual self test Menu: 4. System --> 7. Test The self test can only be started manually when the power generation system has been started by the VMD460-NA (both alarm LEDs off). For details refer to page Remote-Trip (RTG/RT1) Menu: 3. Settings --> 1.General --> 7. Remote Trip This connection can optionally be activated and is intended for disconnecting the power generation system by remote control via an external contact. After activating the remote control, the coupling switches are switched after 50ms. This function can be deactivated in the "Remote Trip = off" menu, if not desired Delay times t on, t off and short interruption Delay time for connection t on All connection conditions have to be met for the duration of the delay time t on so that the power generation system can be connected to the public grid. During the connection delay time and whilst the connection conditions are fulfilled, alarm LED 1 flashes. Alarm LED 2 has gone out. Response delay t off Minimum period that a threshold infringement must exist until the power generation system is disconnected from the grid. 18 VMD460-NA_D00001_02_M_XXEN/

19 Function Delay time for connection in the case of short interruption If the VMD460-NA has disconnected the power generation system from the public grid only for a short time and all connectivity requirements are met again, the delay time for connection can be reduced. t SHORT INT. t (ON) SHORT INT. t (ON) NORMAL Indicates the maximum duration of an interruption that it is allowed to be considered as short interruption. Delay time for connection after a short interruption. Normal delay time for connection Separate conditions for switching on U (on)max, U (on)min, f (on)max, f (on)min Generally, the limit values at the same time are the condition for disconnection as well as the condition for connection (*). Separate conditions for switching on can be specified by using the (on) parameters mentioned above. The measuring values may not exceed these limit values to allow connection of the power generation system. (*) The CEI 0-21 is an exception: If the condition for switching on is not separately defined (factory setting) using the (on) parameter a factor will be applied to the limit value (hysteresis), thus resulting in the condition for connection: Overvoltage: x 0.96 Undervoltage: x 1.04 Overfrequency: x Underfrequency: x Password protection Menu: 4. System --> 4. Password By default, the password protection is deactivated (on). You can navigate through the system also when the password protection is activated. To change parameters, the password is required. VMD460-NA_D00001_02_M_XXEN/

20 Function Factory setting Menu: 4. System --> 12. Factory setting After activating the factory setting, the device will be restored to its factory defaults Erasable history memory Menu: 2. History The device utilises a history memory for failsafe storing of up to 300 data records (date, time, channel, event code, measured value) Detection of islanding (df/dt) (ROCOF) Menu: 3. Settings --> 4. df/dt The VMD460 uses a passive method for islanding detection (three-phase voltage and frequency monitoring). The monitoring of the "Rate of Change of Frequency" (df/dt) is an islanding detection function. If a section of the network is disconnected, it may be unintentionally supplied by the power generation systems contained therein. Underfrequency and overfrequency monitoring might not be sufficient to detect this dangerous, uncontrollable state, since the generators try to keep the frequency at the nominal frequency level. Due to an unbalance between the generated energy and the consumed energy the frequency fluctuates around the nominal frequency. If this happens at a certain minimum speed, this is a sign of islanding and the VMD460-NA disconnects the power generation system. 20 VMD460-NA_D00001_02_M_XXEN/

21 Function Setting options: Activate deactivate df/dt monitoring function Resp. value Specifiy a limit value at which (in 0.05 Hz/s steps) tripping is to be executed Hysteresis Setting of the hysteresis Meas.window Period of time used to calculate the average of the frequency changes. The bigger the measuring window selected the less sensitive will the df/dt function be. t (OFF) Response delay: the time during which a limit value (df/dt) must be violated until the power generation system is disconnected by the VMD460-NA. t (ON) Delay time for connection, when df/dt has caused a disconnection. You can choose between a precise value or "off". When the setting "off" setting is selected, the normal time delay for connection t (ON) NORMAL will be used Vector shift detection Menu: 3. Settings --> 5. Vect.shift Vector shift detection is triggered by a sudden phase displacement (vector shift). A phase displacement may occur when a mechanical generator is used for public grid infeed and the load is changing suddenly (as can be the case with islanding). In addition to the risk of islanding synchronisation to the rest of the system can be lost during the interruption so that the generator and parts of the drive may become electrically and mechanically overloaded during reconnection. VMD460-NA_D00001_02_M_XXEN/

22 Function Adjustment possibilities Function Activate/deactivate vector shift detection and selection of the phases to be monitored (L1 or L2 or L3 or all of them). If all phases are selected, the vector shift must occur on all three phases simultaneously. Otherwise the device will not trip. When single-phase coupling is selected (coupling: 1 AC) and vector shift detection is activated, L1 will automatically be selected as the phase to be monitored (however, the parameter indicates its original value). Resp.value Specifiy the limit value at which tripping is to be executed (in ) t (START) Time during which vector shift detection is suppressed. This time begins as soon as the power generation system is connected by the VMD460-NA. t (START) must ensure that the device is not triggered again by voltage fluctuations when the power generation system is being connected. t (ON) Delay time for connection after the vector shift detection has resulted in disconnection. You can either choose a precise value or the setting "off". In the case of "off" setting the normal time delay for connection t (ON) NORMAL will be used Unbalance Menu: 3. Settings --> 6. Unbalance. When an unbalance is detected the power generation system will be disconnected from the system. The unbalance is calculated between the phase voltages and line-to-line voltages. The higher value of the two values will be compared to the specified response value. Function Resp.value Activate/deactivate monitoring Specifiy a limit value at which tripping is to be executed (in 0.1 % steps) 22 VMD460-NA_D00001_02_M_XXEN/

23 Function Hysteresis t (OFF) Adjusting the hysteresis Response delay: Period of time that the unbalance limit value has to be violated until the VMD460-NA disconnects the power generation system Digital inputs/contact monitoring Menu: 3. Settings --> 8. Digital Input The behaviour of the digital inputs D1 to D4 is to be set here. To carry out settings, select the first line from the setting menu using the button and activate it using the button. Digital Input Modus t (START) The digital input that is to be set is selected here. The digital input mode is selected here. Can be deactivated by selecting "off". (for D1 and D2 only) The time delay after which the VMD460-NA has to check the switching state of the connected coupling switches K1 and K2 (after connecting the power generation system) is to be set here. Factory default setting is 500 ms. In case of slow motor operated coupling switches it may be necessary to increase this value. After disconnecting the power generation system, the time delay after which the VMD460-NA has checkedto check the switching state of the coupling switches is 500 ms. This value can be adjusted Coupling Menu: 3. Settings --> 1. General --> 2. coupling This parameter is used to select the type of distribution system to be monitored by the VMD460-NA. VMD460-NA_D00001_02_M_XXEN/

24 Function 1AC The system to be monitored consists of one phase (including N). Display indications for phase and line conductor voltages, 10-minute-line conductor average value U10LL, the unbalance and the phase sequence that cannot be used can be blanked using the "Alarm/meas. values" menu (display: --). The nominal voltage is indicated as phase voltage (UL-N). The phase to be monitored has to be connected to terminal L1! 3AC 3NAC The system to be monitored consists of three phases without N. Display indications for phase voltages and the 10-minute-phase-average value U10LN that are not required can be blanked using the "Alarm/meas. values" menu. (Display: --). The nominal voltage is indicated as line-to-line voltage (UL-L). The system to be monitored consists of three phases including N. In the "Alarm/meas. values" menu all measured values are available. The nominal voltage is indicated as phase voltage (UL-N). 24 VMD460-NA_D00001_02_M_XXEN/

25 Function Mode Menu: 3. Settings --> 1. General --> 4. Mode (only in case of CEI 0-21 standard) This parameter can be used to select the parameters from the "Frequency" menu that are to be used in conjunction with the digital inputs D3 and D4. (also refer to: CEI 0-21) Setting options: off local external The two digital inputs D3 and D4 have no effect on the parameters. The following parameters from the "Frequency" menu are used: f> (81>S.1) t (OFF) (81>S.1) f< (81<S.1) t (OFF) (81<S.1) The switching state of the digital input D3 has an effect on the parameters being used. Either from the "Frequency" menu the same parameters as in "off" mode or the following parameters are to be used: f> (81>S.2) Tlc (OFF) (81>S.2) f< (81<S.2) Tlc (OFF) (81<S.2) The switching state of the digital input D4 has an effect on the parameters being used. Either from the "Frequency" menu the same parameters as in "off" mode or the following parameters are to be used: f> (81>S.2) Tex (OFF) (81>S.2) f< (81<S.2) Tex (OFF) (81<S.2) VMD460-NA_D00001_02_M_XXEN/

26 Function 26 VMD460-NA_D00001_02_M_XXEN/

27 Installation, connection and commissioning 4. Installation, connection and commissioning 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! 4.1 Unpacking Unpack all the parts supplied with the system. Avoid sharp-edged tools that may damage the content of the packaging. Compare your order with our delivery note to check that you have received all products in full. The article numbers and type designation printed on the nameplates provides an easy means of uniquely identifying each device. Check all parts supplied for any evidence of damage in transit. Equipment damaged in transit must not be used. If a device has sustained damage, please contact Bender. Details of who to contact are indicated on the delivery documents. When storing the devices in an environment where the temperature is wintry and cold: Leave the devices to stand for 3 to 4 hours at room temperature before connecting the power supply. When the devices are moved from a cold to a warm environment, condensation will be evident on all parts. Putting damp devices into operation risks damaging electrical components and there is a danger of electric shock on contact. 4.2 Back-up fuses Equip the supply voltage of all system components with fuses. IEC requires protective devices to be used to protect the component in the event of a short circuit. We recommend the use of 6 A fuses. VMD460-NA_D00001_02_M_XXEN/

28 Installation, connection and commissioning 4.3 Instructions for installation 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 length of the connecting cable of the device connections DG1/2, D1, D2, DG3/4, D3, D4, RTG and RT1 is to be limited to 3 m. In order to ensure the proper functioning of the VMD460-NA after a power failure, an external UPS is to be used. The devices are suitable for the following installation methods: Standard distribution panels according to DIN or DIN rail mounting according to IEC Screw mounting using M4 screws 4.4 Block diagram Coupling switch Coupling switch G Public grid Power generation system VMD460 Fig. 4.1: Block diagram of a central NS protection with coupling switches 28 VMD460-NA_D00001_02_M_XXEN/

29 Installation, connection and commissioning 4.5 Dimension diagram VMD460-NA All dimensions in mm Fig. 4.2: Dimension diagram and drawing for screw fixing 4.6 DIN rail mounting Snap the rear mounting clip of the device into place in such a way that a safe and tight fit is ensured. 4.7 Screw mounting 1. Use the tool to move the rear mounting clips (a second mounting clip required, see ordering information) to a position that it projects beyond the enclosure. 2. Then fix the device using two M4 screws. 4.8 Wiring diagram Connect the device according to the wiring diagram depending on the applicable standard. VMD460-NA_D00001_02_M_XXEN/

30 Installation, connection and commissioning VDE-AR-N 4105, BDEW, C10/11, G59/2, G59/3, G83/2, DIN V VDE V Coupling switch 1 Coupling switch 2 L1 L2 L3 N Power generation system 6 A 6 A 6 A U S 6 A 6 A DG1/2 D1 D2 4 A1 A2 L1 L2 L3 N K K2 DG1/2 D1 D2 L1 L2 L LINETRAXX VMD460 V 7 6 DG3/4 D3 D4 N RT1 RTG A B DG3/4 D3 D4 RT1 RTG 5 Fig. 4.3: Wiring diagram VMD460-NA (VDE-AR-N-4105, BDEW, C10/11, G59/2, G59/3, G83/2, DIN V VDE V ) 30 VMD460-NA_D00001_02_M_XXEN/

31 Installation, connection and commissioning Legend to wiring diagram No. Element Function 1 A1, A2 Supply voltage U s (see ordering information) 2 L1, L2, L3, N Power supply connection 3 K1, K2 Relay connections 4 DG1/2, D1, D2 Contact monitoring coupling switch DG1/2: GND D1: Feedback signal contact K1 D2: Feedback signal contact K2 (feedback signal contacts optionally NC/NO/off)* 5 RTG, RT1 RTG: GND RT1: Remote trip input (optionally NC/NO/off)* 6 A, B Service interface 7 R Activate or deactivate the terminating resistor of the on/off service interface (120 Ω ) DG3/4, D3, D4 not used in the standards mentioned before * Explanation: NC (in non-operating state closed) NO (in non-operating state open) off (switched off) Single-fault safety (VDE-AR-N4105) In order to ensure single-fault safety, the VDE-AR-N 4105 has to be realised for the power generation system. A single fault in the actuation circuit must not prevent a disconnection of the power generating system from the grid. The monitoring circuit for grid disconnection of power generation systems is to be installed at the point of supply. The relays used K1 and K2 are to be connected according to the wiring diagram. Use the contact monitoring function to prevent the sticking of contacts! VMD460-NA_D00001_02_M_XXEN/

32 Installation, connection and commissioning CEI 0-21 DG1/2 Backup < U D2 Coupling switch 1 L1 L2 L3 N Power generation system 6 A 6 A 6 A U S 6 A 6 A 3 DG1/2 D1 A1 A2 L1 L2 L3 N K K2 DG1/2 D1 D2 L1 L2 L LINETRAXX VMD460 V 8 7 DG3/4 D3 D4 N RT1 RTG A B DG3/4 D3 D4 RT1 RTG 5 6 Fig. 4.4: Wiring diagram VMD460-NA (CEI 0-21) 32 VMD460-NA_D00001_02_M_XXEN/

33 Installation, connection and commissioning Legend to wiring diagram No. Element Function 1 A1, A2 Supply voltage U s (see ordering information) 2 L1, L2, L3, N Power supply connection 3 DG1/2, D1, D2 Contact monitoring coupling switch DG1/2: GND D1: Feedback signal contact K1 D2: Feedback signal contact K2 (backup) (feedback signal contact optionally NC/NO/off)* 4 K1, K2 Relay connections 5 DG3/4, D3, D4 Digital inputs (external monitoring) DG3/4: GND D3: local control (CEI )** D4: external signal (CEI )** (optionally NC/NO/off )* 6 RTG, RT1 RTG: GND RT1: Remote trip input (optionally NC/NO/off)* 7 A, B Service interface 8 R on/off Activate or deactivate the terminating resistor of the service interface (120 Ω ) Explanation: * NC (in non-operating state closed) NO (in non-operating state open) off (switched off) ** In order to evaluate the inputs D3 and D4 the mode can be adjusted correspondingly in the menu (menu: 3. Settings --> 1. General --> 4. Mode) : VMD460-NA_D00001_02_M_XXEN/

34 Installation, connection and commissioning Example for NO: Connection D3, mode: lokal (D4 not evaluated) D3: local control f [Hz] Disconnecti on time Example for NO: Connection D4, mode: extern (D3 not evaluated) Parameters open s 81.S1 closed s 81.S2 D4: external signal f [Hz] Disconnecti on time Parameters open 49,5 50,5 0.1 s 81.S1 closed s; 1 s 81.S2 In the case of a failure of the coupling switch 1 (K1), the contact monitoring function will cause the backup relays to switch (K2). 34 VMD460-NA_D00001_02_M_XXEN/

35 Installation, connection and commissioning Details regarding the digital inputs (D1 D4, RT1): low : < 4 V DC high : > 6 V DC 12V U max = 30 V DC R1 1 I < 5 ma Dx D1 µc V1 24 Q1 2 DC Source Open Collector Relais Kontakt DGx GND Dx: DGx: D1, D2, D3, D4, RT1 DG1/2, DG3/4, RTG Fig. 4.5: Block diagram (simplified representation) 4.9 Standards, selectable Menu: 3. Settings --> 1. General --> 1. Norm The following standards are stored in the VMD460-NA: VDE-AR-N 4105 CEI 0-21 BDEW C10/11 G59/2 G83/2 DIN V VDE V VMD460-NA_D00001_02_M_XXEN/

36 Installation, connection and commissioning 4.10 Commissioning Danger of electric shock! Improper connection can lead to injury to persons and damage to the device! Prior to commissioning make sure that the device is properly connected! Initial commissioning When commissioning the device for the first time you have to select a language (English, Deutsch, Italiano), select a standard (VDE-AR-N 4105, CEI 0-21, BDEW, C10/11, G59/2, G83/2, DIN V VDE V ), in addition, you have to set date and time. You can only change settings in the menus after the settings listed above have been carried out. The contrast of the LC display can be adjusted to any ambient brightness. Select the contrast ratio from an infinite loop display. Simultaneously press and hold down the buttons "INFO" and "MENU" until the display text is clearly readable. After reaching a black display, the contrast setting process starts again with a white display. In case of a change in the application standard, the associated fatory settings will be loaded. Existing user-defined settings will not be stored when changing from one standard to another. 36 VMD460-NA_D00001_02_M_XXEN/

37 Installation, connection and commissioning 4.11 Trigger circuit test by the system erector During commissioning, the system erector has to check the correct function of the trigger circuit NS protection/coupling switch, as illustrated in the wiring diagram in this operating manual, consisting of K1/K2 and coupling switch 1/ coupling switch 2. Press the test button to activate the coupling switch. Successful activation must be visualised by the coupling switch. Contact monitoring of the coupling switch (optional, depending on the standard) Note the information about recurrent tests on page 51. VMD460-NA_D00001_02_M_XXEN/

38 Installation, connection and commissioning 38 VMD460-NA_D00001_02_M_XXEN/

39 Operation and configuration 5. Operation and configuration 5.1 Getting to know the user interface 3 LINETRAXX VMD460 V Key No. Element Function 1 2 ON ALARM1 and ALARM2 Power On LED, green; lights when the power supply is available and the device is in operation; flashes when the device is being started or when an internal device error has occurred System disconnected: Both LEDs light(yellow) in the case of limit value violation of voltage or frequency, remote disconnection (Remote Trip, optional), df/dt (optional), vector shift detection (optional), Unbalance (optional); Both LEDs flash (yellow) in the case of an internal device error or fault in contact monitoring Only ALARM 1 lights: Connectivity requirements met. t (ON) running 3 Backlit LC display VMD460-NA_D00001_02_M_XXEN/

40 Operation and configuration Info ESC TEST RESET MENU Standard display: Toggling between standard display and device information Menu display: To exit the parameter setting menu without storing; to switch to the next higher menu level Standard display: The test button is used (< 1.5 s) to start a manual self test which triggers both alarm relays (trigger test to check the coupling switches). In addition, the disconnection times are documented. Siehe Manual self test auf Seite 52. Menu display: Arrow up button for parameter change and scrolling Standard display: (> 1.5 s) Acknowledgement of fault messages from contact monitoring Menu display: Arrow down button for parameter change/scrolling Standard display: Toggling between standard, menu and alarm display Menu display: button Jump to parameter settings; storing the changed parameters 5.2 Various displays Standard display In the standard display, phase voltages, line conductor voltages, the highest 10-minute-phase voltage average value U10LN (depending on the standard) and the frequency are indicated on the display. L1-N 229.9V L1-L V L2-N 229.5V L2-L V L3-N 232.9V L3-L V U10LN 57.3V f 50.00Hz Fig. 5.1: Standard display 40 VMD460-NA_D00001_02_M_XXEN/

41 Operation and configuration Info display Device-specific information is indicated in the info display. VMD460-NA :34 Address: xx Software: D398Vxx.xx Fig. 5.2: Info display For detailed information refer to page Alarm display Type and source of alarms are indicated on the alarm display in plain text format. ALARM 2/3 Undervoltage U(N-1) : 180,3 V Addr.:1 Chan.:1 Fig. 5.3: Alarm display Explanation: In the example above, the second message of three is being indicated (2/3). The address "Addr.:" shows the BMS-bus address of the device sending the alarm. The alarm is outputted on measuring channel 1 and can be accessed via channel number 1 in the "Alarm/meas. values" menu Menu display Alarms, currently measured values as well as the history memory can be called up via the menu display. Settings can also be changed in this display. Exit 1. Alarm/meas. values 2. History 3. Settings Fig. 5.4: Menu display VMD460-NA_D00001_02_M_XXEN/

42 Operation and configuration Toggling between the individual displays You can toggle between the different displays by using the four device buttons. Depending on the type of display (standard display, alarm display, menu display, info display), the meaning of the buttons is different. The picture below illustrates which button is to be pressed for accessing the individual display. First, you have to distinguish between an alarm condition and no alarm condition. Without alarm With alarm info display info display MENU INFO MENU INFO standard dispaly standard display MENU ESC ESC MENU ESC alarm display MENU ESC menu display ESC menu display Fig. 5.5: Toggling between the displays (alarm condition or no alarm condition) 42 VMD460-NA_D00001_02_M_XXEN/

43 Operation and configuration 5.3 INFO button Device information in clear text format (Info display) can be called up with the "INFO" button. For this purpose press the "INFO" button in the standard display once. Scroll through the individual lines using the arrow buttons : Device type Current date and time BMS bus address Software version, measurement technique Software date, measurement technique Software version, display Software date, display Manufacturer of the device Address of the manufacturer Internet address of the manufacturer Return to standard display via "ESC" resp Menu button Toggling between the standard, alarm and menu display (see page 42). The individual entries in the menu display can be accessed using the arrow buttons : The menu display provides the following submenus Exit 1. Alarm/meas. values 2. History 3. Settings 4. System 5. Info VMD460-NA_D00001_02_M_XXEN/

44 Operation and configuration Alarm/meas. values Refer to the menu: 1. Alarm/meas. values (select menu item information about the values. Select the individual entries by means of the buttons. Exit 1. U(1-N): Value 2. U(2-N): Value 3. U(3-N): Value 4. U10LN: Value 5. U10LL: Value 6. U(1-2): Value 7. U(2-3): Value 8. U(3-1): Value 9. Frequency: Value 10. df/dt: Value 11. Status* 12. t (ON) : Value 13. Unbalance: Value 14. Vekt.sprg: Value 15. Phase sequence: Value 16. t (OFF) TOTAL *: Value 17. t (OFF) DEVICE *: Value ) for detailed For each of these entries you can check whether an alarm exists or not: = no alarm = alarm * Measuring channel 11: The text depends on the existing messages. If several messages exist, individual messages are indicated alternately on the display every four seconds. Measuring channel 16: Indicates the total time passed during the self test between the simulation of 0 V on L1 to the disconnection of coupling switch 1 (Chapter 6.2 Manual self test). 44 VMD460-NA_D00001_02_M_XXEN/

45 Operation and configuration Measuring channel 17: Indicates the total time passed during the self test between the simulation of 0 V on L1 to the disconnection command for coupling switch 1.Siehe Manual self test auf Seite History The fail-safe history memory stores up to 300 events (alarms, tests) with information about alarms and acknowledgements and the time the event happened. If the history memory is full, the oldest entry will be deleted in the event of an alarm to create space for the new entry (FIFO principle). For details about erasing the entire history memory manually, refer to "Chapter System" on page 47. History no. 297 Start: / 15:57:00 Quit: End: / 16:07:03 Fig. 5.6: History (overview) Legend to Fig. 5.6: Line 1: Event number Line 2: Event start: Date/time Line 3: Acknowledgement of the event: Date/time Line 4: Event end: Date/time Possibilities: 1. If you are searching for an event that occurred at a specific time, use the arrow buttons to scroll to the required entry. 2. Call up details: Use the button to call up the current history memory entry. VMD460-NA_D00001_02_M_XXEN/

46 Operation and configuration History no. 297 Undervoltage Min. 21 V/max.198 V Addr.:2 Chan.:1 Fig. 5.7: History (detail) Legend to Fig. 5.7: Line 1: Data record number Line 2: Alarm status and alarm text (e.g. undervoltage, transformer error, ) = no alarm = alarm, fault Line 3: Minimum and maximum measured value after the occurrence of an alarm Line 4: BMS-bus address and measuring channel of the device sending the signal Settings Response values for NS protection may only be changed in consultation with the system operator! Settings can be password protected. If the password is activated (enabled), all settings continue to be displayed. When an attempt is made to change settings, the password entry screen appears automatically: Please enter password: VMD460-NA_D00001_02_M_XXEN/

47 Operation and configuration Once a valid password has been entered, access will be granted to settings in all menus until menu mode is exited. If you can't remember your password, contact the Bender Service. In principle, all preset response values can be changed, if this should be necessary. The values can be changed in the third level of the menu (column "twice ") using. There are two different ways to exit the setting menu: Save and exit: " " Exit without saving: "ESC" The menu structures in the settings contain different entries for each individual standard. These are listed in detail in "Chapter 7. Selectable default settings" System The following table gives an overview of the menu structure. The values can be changed in the third level of the menu (column "twice ") using. There are two different ways to exit the system menu: Save and exit: " " Exit without saving: "ESC" Menu: System once twice 1. History Exit Delete 2. Language Exit English English Italiano Delete Cancel VMD460-NA_D00001_02_M_XXEN/

48 Operation and configuration Menu: System once twice 3. Clock Exit Format Date Time CEST 4. Password Exit Password d.m.y m-d-y Toggling between the date elements Toggling between hour and minute with auto off * * * Toggling between positions with 5. Interface 6. Alarm addresses Status Exit Address Exit Address xxx 7. TEST Cancel TEST 8. RESET Cancel RESET 9. Test communication Exit 1. Channel off on : MASTER 2 90: Slave 1 150: off/on Test will be carried out Reset will be carried out Channel (1 12) 48 VMD460-NA_D00001_02_M_XXEN/

49 Operation and configuration Menu: System once twice 10. External devices 11. Factory setting Exit List of the devices connected Cancel factory settings 1 150: own address of the VMD460-NA and external devices Restore factory settings Info The following table gives an overview of the information to be called up. Scroll through the individual lines using the arrow buttons : Device type Current date and time BMS bus address Software version, measurement technique Software date, measurement technique Software version, display Software date, display Manufacturer of the device Address of the manufacturer Internet address of the manufacturer VMD460-NA_D00001_02_M_XXEN/

50 Operation and configuration 50 VMD460-NA_D00001_02_M_XXEN/

51 Maintenance, troubleshooting, messages 6. Maintenance, troubleshooting, messages 6.1 Repeat test of the trigger circuit by the system operator The system operator must ensure that the equipment required for parallel operation with the low-voltage network is always in proper technical condition. To this end, it is required to have an electrically skilled person check the protective devices for proper functioning at regular intervals. This requirement is deemed to be satisfied for normal and environmental conditions if the test intervals mentioned in BGV A3 are adhered to. The repeat test shall include at least the following: Testing the environmental conditions for pollution, mechanical damage or insulation damage. A tripping control of the coupling switch. Press the "TEST" button to trigger the coupling switch. Tripping must be visualised by the coupling switch. The trigger circuit NS protection/coupling switch, in the wiring diagram of this operating manual consisting of K1/K2 and coupling switch 1/coupling switch 2, separates the power generation system from the public low-voltage grid. By checking the trigger circuit regularly, sticking of the contactors can be detected at an early stage. VMD460-NA_D00001_02_M_XXEN/

52 Maintenance, troubleshooting, messages 6.2 Manual self test The self test can only be started manually when the power generation system has been started by the VMD460-NA (both alarm LEDs off) and a limit value has been set for undervoltage. Both coupling switches are switched off during the self test. Start of the manual self test: 1. Press the test button in the standard display (> 1.5 s) or 2. Select 4. System --> 7. Test from the menu. The output relays K1 and K2 switch during the self test and open resp. close the contacts 11/12/14 and 21/22/24. At least one undervoltage limit value must have been set because a measuring value of 0 V is simulated at L 1-N for the duration of the self test. The test continues until the disconnection time for "Undervoltage" t (OFF) has elapsed but no more than two minutes. During the self test, the time is measured that passes until the switching command is given by the VMD460-NA (t (OFF) DEVICE ). When contact monitoring is activated for K1, additionally the time until the coupling switch K1 has actually switched off is measured (t (OFF) TOTAL ). The times measured will be indicated on the display as an alarm for 10 seconds. In addition, the times can be viewed in the Menu: 1. Alarm/measured values under channel 16 (t (OFF) TOTAL ) and channel 17 (t (OFF) DEVICE ). 52 VMD460-NA_D00001_02_M_XXEN/

53 Maintenance, troubleshooting, messages Time diagram: Relays and feedback signal contacts System voltage t off t off t on U< Relay K1 50 ms Feedback signal contacts D1 * t off (DEVICE) t coupling switch 1 t coupling switch1 Redundancy (Coupling switch 2) * t off(total) 50 ms Relay K2 Feedback signal contacts D2 t coupling switch 2 t coupling switch 2 Comments on the time diagram: Times (*) are measured during the self test t (OFF) DEVICE is the disconnection time of the VMD460-NA; t (OFF) TOTAL will only be measured when contact monitoring is activated by K1 and has been connected. t coupling switch 1 = t (OFF) TOTAL - t (OFF) DEVICE All standards (with the exception of CEI 0-21): When disconnecting the power generation system the redundancy (K2) switches to the first coupling switch K1 with a delay of 50 ms. After connection K2 closes first and K1 with a delay of 50 ms. In this way the redundant coupling switch is protected, as it always switches free of load. As soon as the system voltage exceeds the switching threshold again, the start-up delay t (ON) begins. VMD460-NA_D00001_02_M_XXEN/

54 Maintenance, troubleshooting, messages 6.3 Messages and malfunctions In case of messages and malfunctions the power generation system will be disconnected from the public grid. In the case of an internal malfunction, an error in the operation of the coupling switches or a remote trip, both alarm LEDs will flash. The (error) code or the message is shown in clear text on the display. Code/ message LED Meaning Remedy 1 20, 23 Contact mo. K1 Contact mo. K2 Remote trip Both alarm LEDs flash Both alarm LEDs flash Both alarm LEDs light continuously Internal error Error: Contact monitoring K1 Error: Contact monitoring K2 Remote disconnection active Make a note from the error code "xx2 and contact the Bender Service. After rectifying the the fault at the coupling switch/main switch (e.g. manual connection of the backup switch), the fault is automatically cleared. If, however, the same fault has occurred three times within 30 seconds, normal operation must be started again after fault rectification by pressing the "RESET" button (in the standard display). Connect RTG/RT1 resp. deactivate input in the menu (off ) 54 VMD460-NA_D00001_02_M_XXEN/

55 Maintenance, troubleshooting, messages Code/ message LED Meaning Remedy Select the norm Both alarm LEDs light continuously No norm is selected Select the application standard from the menu If several faults or messages occur simultaneously, they will be displayed alternately at four-second intervals. In the case of an internal error, make a note of the error code "xx" and contact the Bender Service. 6.4 LEDs The LEDs indicate the status of the VMD460-NA. The following table provides an overview of the possibilities 2 ALARM 1 ON 2 ALARM 1 ON LEDs Meaning Remedy yellow flashes yellow flashes green flashes yellow off yellow off green lights Device start Normal operation mode: device in operation, all the measured values are within the specified limits Wait until the device is ready for operation (approx. 5 8 s) 2 ALARM 1 ON yellow lights yellow lights green lights Alarm, limit value violated VMD460-NA_D00001_02_M_XXEN/