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Table of Contents
Related Manuals for Merlin Gerin Varlogic NR6
Summary of Contents for Merlin Gerin Varlogic NR6
- Page 1 Varlogic NR6, NR12 Power factor controller User manual...
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Page 2: Table Of Contents
USER´S MANUAL Power Factor Controller NR6 / NR12 USER’S MANUAL Table of Contents 1. General ....................3 1.1 Safety ....................3 1.2 Description..................3 2. Installation ....................5 3. Display....................6 4. Start-up Procedure.................6 5. Menu Operations..................7 5.1 General.....................7 5.2 Main Menu ..................9 5.3 Bank Pre-Configuration ..............11 5.4 Commissioning ................13 5.5 Auto Setup of Parameters .............14 5.6 Manual Setup of Parameters ............15... -
Page 3: General
USER´S MANUAL 1. General 1.1 Safety The following precautions must be taken into account when installing and operating the controller • The installation of the controller must be performed by a qualified electrician • Do not touch the connectors when the controller is energized, make sure that the operating voltage is disconnected before touching any parts located on the rear side of the controller •... - Page 4 USER´S MANUAL Rear view: Legend Step output connectors Specification label Mounting bracket for panel mounting installation Fixing spring for DIN-rail mounting Current/voltage connection inputs Fan and alarm outputs DIN-rail mounting installation area Side view: Legend Screwdriver guide See Chapter 8 for technical specifications.
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Page 5: Installation
USER´S MANUAL 2. Installation The controller is designed for either panel (cut-out 138 x 138 mm) or DIN-rail installation. It is locked to the rail by a screwdriver-operated fixing spring and to a panel by a side fitting spring. There are two ways of connecting the controller to the network. Voltage LN (Line –... -
Page 6: Display
USER´S MANUAL 3. Display The controller is equipped with a backlighted LCD-display. Figure 2 : Display layout and symbols 4. Start-up Procedure Before connecting power, check the wiring of all controller terminals. Check carefully for correct operating voltage. Selection of wrong voltage input can permanently damage the controller. After the first power switch-on, the controller will automatically ask for the language setting of the menu. -
Page 7: Menu Operations
USER´S MANUAL Figure 3: Language setting dialog 5. Menu Operations 5.1 General Navigation between different menu levels As a precaution against accidental use, the access of certain menus has been protected by a keylock, which is a special sequence of keystrokes enabling the use the particular menu item. - Page 8 USER´S MANUAL Figure 4: General way of entering the menu with a keylock Adjusting a value Figure 5: Adjusting a value Special case: The wiring editor Figure 6: The wiring editor...
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Page 9: Main Menu
USER´S MANUAL 5.2 Main Menu The main menu contains all basic submenus required to set up and operate the controller. Which menu to choose? Figure 7: Required skills and menu selection If bank preconfiguration is properly done, commissioning does not require any special skill. - Page 10 USER´S MANUAL (1) Bank pre-configuration When factory settings have not been changed, this menu provides the bank builder the means of pre- configuring the bank at the workshop. After pre- configuration, this menu topic is replaced by (2) Commissioning, by which the controller is taken into service.
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Page 11: Bank Pre-Configuration
USER´S MANUAL 5.3 Bank Pre-Configuration This menu item is a forced sequence, meaning that all items must be accessed before the pre- configuration takes place. NOTE: Do not use of the Bank Pre-Configuration menu for HV network applications The sequence can be interrupted by pressing key. - Page 12 USER´S MANUAL Figure 9: Bank pre-configuration...
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Page 13: Commissioning
USER´S MANUAL 5.4 Commissioning A pre-configured controller is put into service by this menu. The sequence contains an automatic parameter verification to check that the manually entered parameters agree with the network used. See Glossary (chapter 7) for parameter definitions. NOTE: Do not use of the Commissioning menu for HV network applications Figure 10: Commissioning... -
Page 14: Auto Setup Of Parameters
USER´S MANUAL Code Meaning Action to do • Enter the parameter settings Unstable network: The controller is unable to manually using Parameter operate due to excessive load variations on the Update menu. network. CT oversized. • Rerun the commissioning sequence Step size too small: The effect of the 1 step •... -
Page 15: Manual Setup Of Parameters
USER´S MANUAL Figure 11: Auto setup of parameters 5.6 Manual Setup of Parameters The manual setup sequence is intended for experienced users. There are nine important parameters to input before the controller can be taken into service. This sequence is completed by an automatic verification of the parameters entered earlier in this sequence. - Page 16 USER´S MANUAL Figure 12: Manual setup of parameters...
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Page 17: Measurement Menu
USER´S MANUAL 5.7 Measurement Menu The measurement menu contains the most common measurements taken from the network. This is a read-only menu sequence. Figure 13: Measurement menu... -
Page 18: Parameter Update
USER´S MANUAL 5.8 Parameter Update The most common operating parameters can be accessed from this menu. Unlike the configuration and setup sequences presented earlier in this text, this is a menu allowing a free and unrestricted entry into all of its items and should be used when occasional parameter access is needed. -
Page 19: Alarms Menu
USER´S MANUAL 5.9 Alarms Menu In Alarms menu, each individual alarm can be enabled or disabled. Once an alarm condition is detected, the corresponding alarm number is shown at the upper part of the display, and the alarm symbol is on. The alarm relay is also activated. An alarm can be reset by an extended pressure of key, this clears all passive alarms. -
Page 20: Maintenance Menu
USER´S MANUAL Figure 15: Alarms menu 5.10 Maintenance menu The maintenance menu provides useful information about the usage of the bank, capacitors and contactors. Also, some auxiliary settings have been provided. CAUTION: This menu access is dedicated to specialists. CAUTION: In case of installation in a HV bank (with VT), you must adjust the default factory settings. - Page 21 USER´S MANUAL Figure 16/1: Maintenance menu...
- Page 22 USER´S MANUAL Figure 16/2: Maintenance menu...
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Page 23: Miscellaneous
USER´S MANUAL 6. Miscellaneous 6.1 Stepping programs The controller's algorithm will try to reach the target cos inside a tolerance area dependant upon the C/K value. It reaches the value by switching on or off available relevant steps. The regulation step program choice is as follows: a) Stack Program (linear) : All capacitor steps are of equal size (ex :1.1.1.1). - Page 24 USER´S MANUAL Step Step number Step Step number demand demand Figure 19: Circular A program - Operation sequence 1:1:1 Figure 20: Circular B program - Operation sequence 1:2:2 e) Optimal Program : The optimal program operates with many step configurations: 1.1.1.1.1 1.2.2.2.2 1.2.4.4.4...
- Page 25 USER´S MANUAL Optimal Stepping Program Uncompensated reactive power Compensated reactive power Step sizes : 1:2:4:4 Connection of steps Steps on : Steps on : 4+4+4+1 Steps on : Disconnection of steps Normal Stepping Program Step sizes : 1:2:4:4 Steps on : Steps on : Steps on : 4+4+4+4...
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Page 26: Manual Calculation Of Response Value
USER´S MANUAL 6.2 Manual calculation of response value Normally the response value, more generally known as the C/K value, is set automatically as a part of the Auto Setup sequence, but there are cases when these values must be entered manually. -
Page 27: High Voltage Use Of Nr6/Nr12
USER´S MANUAL Figure 22: Compensation example and consequences 6.3 High Voltage use of NR6/NR12 This controller is primarily intended for LV network, but may be used in HV networks under the commissioner’s full responsibility, if the following points are taken into account. Connections must employ VT and CT with respect to the following figure. - Page 28 USER´S MANUAL Figure 23: HV use of the controller...
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Page 29: Glossary
USER´S MANUAL 7. Glossary Display Long form text Default information value value value ALARMS Alarms Menu ALRM.SET Alarm Setup (Enable/Disable) AUTO Automatic search of C/K response value AUTO.SET Automatic Setup Sequence BANK.PRE Bank Pre-configuration Sequence Menu BANK.TST Bank Test: each step is automatically connected and disconnected in turn. - Page 30 USER´S MANUAL Display Long form text Default information value value value N.CONNEC Number of Connections N.STEPS Number of used steps 6/12 NORMAL Normal, Standard stepping program OPTIM Optimal program PARAMET Parameters Menu PROGRAM Selection of suitable stepping program between (see 6.1 Stepping programs) The controler’s algorithm will try to reach the target inside a tolerance area dependant upon the C/K value.
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Page 31: Technical Specifications
USER´S MANUAL 8. Technical specifications Number of steps 6 or 12 Dimensions 155 x 155 x 70 mm Frequency 48...52 Hz, 58...62 Hz Measuring current 0...5 A Measuring and supply voltages 88...130 V 185...265 V 320...460 V Relay outputs 120 Vac/5A, 250 Vac/2A, 400 Vac/1A 110 Vdc/0,3A, 60 Vdc/0,6A, 24 Vdc/2A Display LCD glass with 160 symbols, backlighted... - Page 32 Schneider Electric Industries SAS As characteristics and dimensions of our products are constantly changing, please contact our offices for confirmation. Rec NM39EN 10/2003...
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