Bender VMD423 Operating Manual
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Bender VMD423 Operating Manual

Voltage and frequency monitor
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Operating Manual
Voltage and frequency monitor
for monitoring of 3(N)AC systems up to 0...500 V
for undervoltage and overvoltage and under and overfrequency
Software version: D344 V3.1x
Power in electrical safety
TGH1444en/04.2011

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Summary of Contents for Bender VMD423

  • Page 1 Operating Manual Voltage and frequency monitor for monitoring of 3(N)AC systems up to 0...500 V for undervoltage and overvoltage and under and overfrequency Software version: D344 V3.1x Power in electrical safety TGH1444en/04.2011...
  • Page 2 Dipl.-Ing. W. Bender GmbH & Co. KG Londorfer Str. 65 • 35305 Grünberg • Germany Postfach 1161 • 35301 Grünberg • Germany Tel.: +49 6401 807-0 Fax: +49 6401 807-259 E-Mail: info@bender-de.com Web: http://www.bender-de.com © Dipl.-Ing. W. Bender GmbH & Co. KG All rights reserved.

  • Page 3: Table Of Contents

    Table of Contents 1. How to use this documentation effectively ..........5 How to use this manual ................. 5 2. Safety ........................7 General ......................... 7 Intended use ...................... 7 Skilled person ....................7 Safety information on work activities on electrical installations .. 8 3.
  • Page 4 Table of Contents Installing the device ..................16 4.1.1 DIN rail mounting: ..................16 4.1.2 Screw mounting .................... 16 Wiring of the device ..................17 Commissioning / factory setting ............. 20 5. Operation and setting .................. 21 Getting to know the user interface ............21 Understanding standard display indications ........

  • Page 5: How To Use This Documentation Effectively

    1. How to use this documentation effectively 1.1 How to use this manual This operating manual is designed for skilled persons working in electrical en- gineering and electronics and must always be kept in an easily accessible lo- cation near to the equipment. In order to make it easier for you to find specific text passages or references in this manual and for reasons of comprehensibility, important information is emphasised by symbols.
  • Page 6 How to use this documentation effectively TGH1444en/04.2011...

  • Page 7: Safety

    "Important safety instructions for Bender products“. 2.2 Intended use The voltage monitor VMD423 is used in 3(N)AC systems in accordance with VDE V 0126-1-1 for undervoltage, overvoltage, underfrequency and overfre- quency monitoring. The device is suitable for the nominal voltage range U 0...500 V in the frequency range 40...65 Hz.

  • Page 8: Safety Information On Work Activities On Electrical Installations

    Safety 2.4 Safety information on work activities on electrical in- stallations Touching live parts will cause danger of electric shock with fatal consequences! All work activities on electrical installations as well as installation activities, commis- sioning activities and work activities with the device in operation may only be carried out by electrically skilled persons! Danger of electric shock!

  • Page 9: Function

    3. Function 3.1 Device features The VMD423 requires a separate supply voltage U Monitoring for undervoltage and overvoltage and underfrequency and overfrequency in 3(N)AC systems of AC 0...500 V / 0...288 V Monitoring of overvoltage U2 by average determination of the latest...

  • Page 10: Function

    Function 3.2 Function Once the supply voltage is applied, the start-up delay plus response delay (t + ) begins. Throughout this time, an alarm is output via alarm LEDs and re- on1/2 lays. Measured voltage and frequency values being changed during this start- up period t do not influence the alarm LEDs and the state of the alarm relays.

  • Page 11: Functional Faults

    3.2.4 Functional faults If an internal malfunction occurs, all three LEDs flash. An error code will appear on the display (E01...E32). In such a case please contact the Bender Service. 3.2.5 Fault memory The fault memory can be activated, deactivated or can be set to continuous mode (con).

  • Page 12: Password Protection (On, Off)

    By default, the password protection is activated (on). Settings are only possi- ble after entering the correct password (0...999). If you cannot operate your device because you cannot remember your password, please contact in- fo@bender-service.com. 3.2.12 Factory setting FAC After activating the factory setting, all settings previously changed are reset to delivery status.
  • Page 13 Function (K2) are shown as a hatched area. The fault for K1 shown in the time diagram below, by way of example, has started during the S.AL phase: S.AL The fault for K1 shown in the time diagram below, by way of example, started when the S.AL phase has elapsed: S.AL TGH1444en/04.2011...
  • Page 14 Function TGH1444en/04.2011...

  • Page 15: 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 before starting installation works and that the nominal voltage and supply voltage specified in the relevant data sheet are observed! TGH1444en/04.2011...

  • Page 16: Installing The Device

    Installation, connection and commissioning 4.1 Installing the device Zubehör/ Accessory 36 mm Fig. 4.1: Dimension diagram and drawing for screw fixing 4.1.1 DIN rail mounting: 1. Snap the rear mounting clip of the device into place in such a way that a safe and tight fit is ensured.

  • Page 17: Wiring Of The Device

    Installation, connection and commissioning 4.2 Wiring of the device Connect the device according the wiring diagram. Connect the conductor to the push-wire ter- minals according to the drawing. Terminal Connections Connection to the sup- A1, A2 ply voltage U Connection to the sys- L1, L2, L3, (N) tem to be monitored 11, 12, 14 Alarm relay K1...
  • Page 18 Installation, connection and commissioning Example: Application of a photovoltaic system encountered in practice Fig. 4.3: Application of an VMD423-D-2 in a photovoltaic system. TGH1444en/04.2011...
  • Page 19 Installation, connection and commissioning Connect the terminals A1/A2 and L1/L2/L3 of the VMD423 always to the sup- ply side of the system to be monitored (but not to the inverter side of the dis- connecting relay). Single-fault tolerance In order to ensure single-fault tolerance, private power generating systems must be designed in a way that they meet the requirements of DIN V VDE V 0126-1-1:2006-2.

  • Page 20: Commissioning / Factory Setting

    Installation, connection and commissioning 4.3 Commissioning / factory setting Material damage by improper connection of the device! Prior to commissioning make sure that the device is properly connected! Undervoltage < U: 184 V Overvoltage > U1: 264 V Overvoltage > U2 (10 min.): 253 V Hysteresis U: Underfrequency <...

  • Page 21: Operation And Setting

    5. Operation and setting 5.1 Getting to know the user interface Device front Element Function Power On LED, green Menu item LEd deactivated: AL1, LED Alarm 1 lights (yellow): Response value > U reached LED Alarm 2 lights (yellow): Response value < U reached AL1 AL2 Menu item LEd deactivated:...
  • Page 22 Operation and setting Device front Element Function Reset button (> 1.5 s): To delete the fault memory; Down key (< 1.5 s): Menu items/values MENU key (> 1.5 s): MENU, To start the menu mode; Enter key (< 1.5 s): To confirm menu item, submenu item and value.

  • Page 23: Understanding Standard Display Indications

    Operation and setting 5.2 Understanding standard display indications Fig. 5.1: Standard displays Indication LINE CONDUCTORS L1-L3: Indication TYPE OF VOLTAGE: Shows the active line conductors. Shows the type of voltage. Indication ASYMMETRY: PASSWORD PROTECTION ENABLED: Shows the asymmetry value as %. Indicates that password protection is ac- Indication NEUTRAL CONDUCTOR: tivated.

  • Page 24: Getting To Know Keys And Key Functions

    Operation and setting 5.3 Getting to know keys and key functions The following table shows the functions of the keys for navigation on the dis- play, navigation through the menu and parameter setting. From "chapter 5.4 Querying values" onwards, only the respective key symbols are used for que- rying values.

  • Page 25: Querying Values

    Operation and setting 5.4 Querying values By default, the phase voltage between L1 and N is indicated. By pressing the UP and DOWN key, the phase voltage between L1 and L3, L2 and L3 as well as asymmetry, system frequency and phase sequence as well as the average val- ue of U2 can be queried.
  • Page 26 Operation and setting Query Display indication 7. Query asymmetry 8. Change display indication 9. Query system frequency 10. Change display indication 11. Query phase sequence 12. Change display indication 13. Query average value of U2 TGH1444en/04.2011...

  • Page 27: Starting The Self Test Manually

    Operation and setting 5.5 Starting the self test manually The self test described on page 10 can also be started manually. During the self test, internal functional faults are detected and are indicated as error codes on the display. The alarm relays are not tested during this time. In order to start the self test manually: 1.
  • Page 28 Operation and setting In this case, we assume, the response value for undervoltage is to be changed. During the sequence of operation, you need to confirm the password entry before carrying out the next step in the operation. TGH1444en/04.2011...

  • Page 29: Selecting Menu Items

    Operation and setting 5.8.2 Selecting menu items Press the ENTER key for more than 1.5 seconds to call up the menu. Menu items for different settings are available. Some menu items consist of several submenu items. The UP/DOWN keys can be used to navigate through the menu items.
  • Page 30 Operation and setting Description/parameter setting Menu item/ENTER key Adjust delays: Response delay t Start-up delay t Delay on release t (LED, relay) 3. Press the UP/DOWN key to select the next menu item. Setting the parameters for device control Select method of measurement 3Ph or 3n Enable or disable password protection, change password Re-establish factory setting Service menu SyS blocked...

  • Page 31: Carrying Out Settings In The Menu Item Al

    Operation and setting 5.8.3 Carrying out settings in the menu item AL 1. Select menu item AL. 2. Carry out parameter change as illustrated below. 3. Keep the ENTER key pressed for more than 1.5 seconds to return to the menu item level after parameter change.
  • Page 32 Operation and setting Menu item Activate/deactivate pa- Change display Change/save par- Select submenu item rameters parameter value 5. Set the response value undervoltage2 6. Select sub- menu item 7. Set the hystere- sis for voltage response values 8. Select sub- menu item 9.
  • Page 33 Operation and setting Menu item Activate/deactivate pa- Change display Change/save par- Select submenu item rameters parameter value 12. Select sub- menu item 13. Set the response value for overfre- quency 14. Select sub- menu item 15. Set the hystere- sis for frequency response value 16.
  • Page 34 Operation and setting Menu item Activate/deactivate pa- Change display Change/save par- Select submenu item rameters parameter value 19. Return to menu item AL TGH1444en/04.2011...

  • Page 35: Carrying Out Settings In The Menu Item Out

    Operation and setting 5.8.4 Carrying out settings in the menu item out 1. Select menu item out. 2. Carry out parameter change as illustrated below. 3. Keep the ENTER key pressed for more than 1.5 seconds to return to the menu item level after parameter change.
  • Page 36 Operation and setting Menu item Activate/deactivate/ Change display Change/save par- Select submenu item change param. parameter value 3. Select sub- menu item 4. Setting the alarm relay K1 to N/O opera- tion (n.o.) 5. Setting the alarm relay K1 to N/C opera- tion (n.c.) 6.
  • Page 37 Operation and setting Menu item Activate/deactivate/ Change display Change/save par- Select submenu item change param. parameter value 8. Set alarm relay K2 to N/C oper- ation (n.c.) 9. Select sub- menu item 10. LEDs AL1/AL2 show the alarm status of K1/K2 11.
  • Page 38 Operation and setting Menu item Activate/deactivate/ Change display Change/save par- Select submenu item change param. parameter value 14. Assign under- voltage fault to alarm relay K1 15. Change cate- gory 16. Assign overvolt- age fault1 to alarm relay K1 17. Change cate- gory 18.
  • Page 39 Operation and setting Menu item Activate/deactivate/ Change display Change/save par- Select submenu item change param. parameter value 23. Change cate- gory 24. Assign phase sequence fault to alarm relay 25. Change cate- gory 26. Assign overvolt- age fault2 to alarm relay K1 27.
  • Page 40 Operation and setting Menu item Activate/deactivate/ Change display Change/save par- Select submenu item change param. parameter value 32. Assign category Assignment is carried out in exactly the same way as for alarm device error to relay K1 alarm relay K2 33.

  • Page 41: Carrying Out Settings In The Menu Item T

    Operation and setting 5.8.5 Carrying out settings in the menu item t 1. Select menu item t 2. Carry out parameter change as illustrated below. 3. Keep the ENTER key pressed for more than 1.5 seconds to return to the menu item level after parameter change.

  • Page 42: Carrying Out Settings In The Menu Item Set

    Operation and setting 5.8.6 Carrying out settings in the menu item SEt 1. Select menu item SEt. 2. Carry out parameter change as illustrated below. 3. Keep the ENTER key pressed for more than 1.5 seconds to return to the menu item level after parameter change.
  • Page 43 Operation and setting Menu item Activate/deactivate/ Change display Change/save par- Select submenu item change param. parameter value 4. Disable pass- word protection 5. Enable pass- word protec- tion and enter password (3- digit numerical code) 6. Select sub- menu item TGH1444en/04.2011...

  • Page 44: Querying Information In Menu Item Inf

    Operation and setting Menu item Activate/deactivate/ Change display Change/save par- Select submenu item change param. parameter value 7. Re-establish factory setting The text "run“ will appear on the display and the device will automatically reset to factory setting. 8. Select sub- menu item 9.

  • Page 45: Querying And Clearing Fault Memory In The Menu Item His

    Operation and setting 5.8.8 Querying and clearing fault memory in the menu item HIS 1. Select menu item HIS. 2. Change parameters according to table. 3. Keep the ENTER key pressed for more than 1.5 seconds to return to the menu item level after parameter change.
  • Page 46 Operation and setting Menu item HiS Fault indication /Submenu item 9. Query frequency fault (overfrequency) 10. Select fault indication 11. Indicate average value (L2 or L3 can also be indicated) 12. Select fault indication 13. To clear the fault memory 14.

  • Page 47: Technical Data

    (N, L1, L2, L3) - (21, 22, 24) ..........................2.21 kV (A1, A2) - (11, 12, 14) - (21, 22, 24) ......................... 2.21 kV Supply voltage VMD423-D-1: Supply voltage U ....................... AC 16...72 V / DC 9.6...94 V Frequency range U ............................
  • Page 48 Technical data Overvoltage U2 ...................... 10-minute average determination Resolution of setting U .............................. 1 V Hysteresis U ............................1...40 % (5 %)* Asymmetry ............................5...30 % (30 %)* Phase failure........................by setting of the asymmetry Phase sequence....................clockwise R/anticlockwise L (R / on)* Relative uncertainty, voltage at 50 Hz/60 Hz...................
  • Page 49 Technical data Operating principle..................N/C operation n.c. / N/O operation n.o..................K1: (undervoltage < U, overvoltage > U1, asymmetry Asy, ........underfrequency < Hz, overfrequency > Hz, alarm when starting S.AL, N/C operation n.c.)* ............K2: (device error Err, undervoltage < U, overvoltage > U1, asymmetry Asy, ................underfrequency <...

  • Page 50: Standards, Approvals And Certifications

    Technical data Flexible without ferrules ....................0.2...2.5 mm ( AWG 24...14) Flexible with ferrules....................... 0.2...1.5 mm ( AWG 24...16) Stripping length ..............................10 mm Opening force................................50 N Test opening, diameter............................2.1 mm General data Operating mode ........................... continuous operation Mounting ..............................

  • Page 51: Ordering Information

    Technical data 6.3 Ordering information Nominal voltage Supply voltage U Device type Art. No. VMD423-D-1 3(N)AC 0...500 V/ AC 16...72 V / DC 9.6 V...94 (push-wire 288 V B 7301 0020 DC, 15...460 Hz terminals) 40...65 Hz 3(N)AC 0...500 V/ AC 16...72 V / DC 9.6 V...94...
  • Page 52 Technical data TGH1444en/04.2011...

  • Page 53: Index

    INDEX Alarm LEDs show which relay is in the alarm How to use this manual 5 state 12 Automatic self test 10 Indication of the alarm state of K1/K2 12 Installation and connection 15 currently measured values - asymmetry 25 Key functions 24 - phase sequence 25 Keys 24...
  • Page 54 Operating elements, function 21 User interface 21 Operation and setting 21 Ordering information 51 Wiring diagram 17 Work activities on electrical installations 8 Password protection 12 Preset function 10 Querying values 25 Reset button 22 Response delay ton 11 S.AL 12 Selecting menu items 29 simulated 12 Simulated alarm S.AL 12...
  • Page 56 Dipl.-Ing. W. Bender GmbH & Co. KG Londorfer Str. 65 • 35305 Grünberg • Germany Postfach 1161 • 35301 Grünberg • Germany Tel.: +49 6401 807-0 Fax: +49 6401 807-259 E-Mail: info@bender-de.com Web: http://www.bender-de.com...

This manual is also suitable for:

Vmd423-d-1Vmd423-d-2B 7301 0020B 7301 0021B 9301 0020B 9301 0021

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