Precision Battery Monitor BMV-600 USER MANUAL INSTALLATION
Contents
1. 1 4 SAFETY PRECAUTIONS lt scssisssstasssssnssssssssssassanss 2 SETTING UP THE BMV 600 2 1 CHARGE EFFICIENCY FACTOR CEF 2 2 PEUKERT S EXPONENT 2 3 CHARGED PARAMETERS 24 SYNCHRONIZING THE BMV 600 2 5 FUNCTION OVERVIEW 3 GENERAL OPERATION seen three nannten tata 16 4 SPECIAL 5 0 2222 17 5 TECHNICAL 18 1 INTRODUCTION Victron Energy has established an international reputation as a leading designer and manufacturer of energy systems Our R amp D department is the driving force behind this reputation It is continually seeking new ways of incorporating the latest technology in our products Each step forward results in value added technical and economical features 1 1 Victron Energy battery monitor basics The Precision Battery Monitor BMV 600 is a device that monitors your battery status It constantly measures the battery voltage and battery current and uses this information to calculate the actual state of charge of your battery The BMV 600 is supplied with a shunt that delivers a 50 to 50mV voltage at a current rating of 500A The BMV 600 is also equipped with a potential free contact This can be used to automatically start and stop a generator or signal alarm conditions 1 2 Why should monitor my battery Batteries are used in a wide variety of applications mostly to store energy for later us2. 9 5 1 DV no Yes yes na DI no Yes yes na poe be he D SOC no Yes yes na Yes yes na Lock Setup lock no Yes no na sw Firmware version cannot be altered xxx XXX XXX na 12 Explanation of terms Cb VC Ith Tdt DF Battery capacity in Amphours Ah This must be the capacity at a 20h discharge rate and 20 C Voltage charged parameter The battery voltage must be above this voltage level to consider the battery as fully charged Make sure the voltage charged parameter is always slightly below the voltage at which the charger finishes charging the battery usually 0 1V or 0 2V below the float stage voltage of the charger Current charged parameter When the charge current value is below this percentage of the battery capacity Cb the battery can be considered as fully charged Make sure the current charged parameter is always greater than the minimum current at which the charger maintains the battery or stops charging Detection time charged state This is the time the charged parameters as described in It and Vc must be met in order to consider the battery as fully charged When battery is being charged energy is lost The Charge Efficiency Factor compensates for the lost energy where 100 is no loss Default is 90 Peukert exponent discharge efficiency When unknown it is recommended to keep this value at
3. Al Alc Ah AS ASc RI Ric Rh Rhc BLI D V DI D CE Clear low battery relay alarm When the state of charge percentage has risen above this value the alarm relay will be de activated This value needs to be larger then or equal to DF Undervoltage buzzer alarm When the battery voltage falls below this value after 10 seconds a bell icon shall appear on the display backlight flashes and the buzzer will sound The buzzer and backlight flashing can be turned off by pressing any key the bell icon will remain in the display Clear undervoltage buzzer alarm When the battery voltage rises above this value the alarm is turned off This value needs to be larger then or equal to Al Overvoltage buzzer alarm When the battery voltage rises above this value after 10 seconds bell icon shall appear on the display backlight flashes and the buzzer will sound The buzzer and backlight flashing can be turned off by pressing any key the bell icon will remain in the display Clear overvoltage buzzer alarm When the battery voltage falls below this value the alarm is turned off This value needs to be less then or equal to Ah Low battery buzzer alarm When the state of charge percentage has fallen below this value after 10 seconds a bell icon shall appear on the display backlight flashes and the buzzer will sound The buzzer and backlight flashing can be turned off by pressing any key the bell icon will r
4. When all the necessary changes are made and double checked in the setup mode it is time to jump back to the normal operating mode by pressing the setup key for three seconds Your BMV 600 is now ready for use 15 3 GENERAL OPERATION In normal operating mode the BMV 600 can display the values of selected important parameters of your DC system Use the and selection keys to select the desired parameter Battery voltage V This readout is useful to make a rough estimation of the battery s state of charge A 12V battery is considered empty when it cannot maintain a voltage of 10 5V under load conditions Current A represents the actual current flowing in or out of the battery A discharge current is indicated as a negative value current flowing out of the battery If for example a DC to AC inverter draws 5Amps from the battery it will be displayed as 5 0A Consumed Amphours Ah displays the amount of Amphours consumed from the battery A fully charged battery sets this readout to 0 0Ah synchronized system When for three hours a current of 12Amps is drawn from the battery this readout gives 36 0Ah State of charge This is the best way to monitor the actual state of the battery This readout represents the current amount of energy left in the battery A fully charged battery sets this readout to 100 0 while a fully discharged battery is represented as 0 0 Time to go h is an estimation of how long the b
5. batteries please ensure that all the relevant specifications are known to properly setup the BMV 600 parameters Users can fully adjust their BMV 600 with the help of 28 different settings called Parameters 10 There are four buttons to control the BMV 600 Name Function Setup Enter exit setup mode by pressing this button for 3 seconds Confirm change When a parameter is changed and this button is pressed it will be checked for validity If the value is valid it is stored If the value is invalid the display blinks rapidly 10 times and the nearest valid value is displayed but not stored The value can be corrected if need and then stored by pressing this button again Select Select a digit The cursor is moved one digit to the right or to the far left if it was already on the far right so the next digit can be changed The number of selectable digits depends on the setting some have only one so this button will do nothing Switch between display mode and historic mode Up Change digit The selected digit will be increased after 9 it is set to 0 Some digits are not decimal like the sign and the x These digits just switch between the available values Select displayed item The previous enabled item is displayed Down Change digit The selected digit will be decreased after 0 it is set to 9 Some digits not decimal like the sign and the x These digits just switch be
6. measurement accuracy Current measurement accuracy Potential free alarm contact Mode Rating Dimensions Frontpanel Body diameter Overall depth Net weight BMV 600 Shunt Material Body Sticker 18 9 95VDC 1mA 1mA 9 95VDC 500 500A 20 9999Ah 0 50 C voltage dependent 1 0 1Ah t1Ah t 0 196 1minute thr 0 396 0 5 Normally open 60V 1A max 69 x 69mm 52mm 31mm 70 gram 315 gram ABS Polyester fff y victron energy Victron Energy B V De Paal 35 1351 JG Almere PO Box 50016 1305 AA Almere The Netherlands T 31 36 5359700 31 36 5311666 sales victronenergy com http Awww victronenergy com Article number Version 02 Date 30 07 2007 19
7. 1 25 A value of 1 00 disables the Peukert compensation Contact your battery manufacturer for the correct Peukert exponent for your battery Current threshold When the current measured falls below this value it will be considered as zero Amps With this function it is possible to cancel out very small currents that can negatively affect long term state of charge readout in noisy environments For example if an actual long term current is 0 05A and due to injected noise or small offsets the battery monitor measures 0 05A on the long term the BMV 600 can incorrectly indicate that the battery needs recharging When in this case Function 14 is set to 0 1 the BMV 600 calculates with 0 0A so that errors are eliminated A setting of 0 0 disables this Function Time to go averaging period Specifies the time window in minutes that the moving averaging filter works with Selecting the right time depends on your installation A value of 0 disables the filter and gives you instantaneous real time readout however the displayed values may fluctuate heavily Selecting the highest time 12 minutes ensures that long term load fluctuations are included in the time to 90 calculations Low battery relay alarm discharge floor When the state of charge percentage has fallen below this value the alarm relay will be activated The time to go calculation is also linked to this value It is recommended to keep this value at or around 50 0 13 CIS
8. C20 rating low discharge current you choose a second rating with a substantially higher discharge current 8 A 200Ah battery is discharged with a constant current of 20A and after 8 5 hours 1 75V cell is reached So gt t1 8 5hr gt 11 20A 20hr rating C20 200Ah gt t2 20hr gt 12 200Ah 20hr 10A log 20 log8 5 Peukert exponent n p log20 lo To calculate the Peukert exponent with the specifications above you can also use the Peukert calculator which can be downloaded from our website at www victronenergy com 2 3 Charged parameters Based on increasing charge voltage and decreasing charge current a decision can be made whether the battery is fully charged or not When the battery voltage is above a certain level during a predefined period while the charge current is below a certain level for the same period the battery can be considered fully charged These voltage and current levels as well as the predefined period are called charged parameters In general for a 12V lead acid battery the voltage charged parameter is 13 2V and the current charged parameter is 2 0 of the total battery capacity e g 4A with a 200Ah battery A charged parameter time of 4 minutes is sufficient for most battery systems Please note that these parameters are very important for correct operation of your BMV 600 and must be set appropriately in the corresponding menu items 2 4 Synchronizing the BMV 600 For
9. Precision Battery Monitor BMV 600 USER MANUAL INSTALLATION MANUAL VICTRON IEA Copyrights 2007 Victron Energy All Rights Reserved This publication or parts thereof may not be reproduced in any form by any method for any purpose For conditions of use and permission to use this manual for publication in other than the English language contact Victron Energy B V VICTRON ENERGY B V MAKES NO WARRANTY EITHER EXPESSED OR IMPLIED INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE REGARDING THESE VICTRON ENERGY PRODUCTS AND MAKES SUCH VICTRON ENERGY PRODUCTS AVAILABLE SOLELY ON AN AS IS BASIS IN NO EVENT SHALL VICTRON ENERGY B V BE LIABLE TO ANYONE FOR SPECIAL COLLATERAL INCIDENTAL OR CONSEQUENTIAL DAMAGES IN CONNECTION WITH OR ARISING OUT OF PURCHASE OR USE OF THESE VICTRON ENERGY PRODUCTS THE SOLE AND EXCLUSIVE LIABILITY TO VICTRON ENERGY B V REGARDLESS OF THE FORM OF ACTION SHALL NOT EXCEED THE PURCHASE PRICE OF THE VICTRON ENERGY PRODUCTS DESCRIBED HERE IN Victron Energy B V reserves the right to revise and improve its products as it sees fit This publication describes the state of this product at the time of its publication and may not reflect the product at all times in the future Index 1 INTRODUCTION 1 1 VICTRON ENERGY BATTERY MONITOR BASICS 1 2 WHY SHOULD MONITOR MY BATTERY 1 3 How DOES THE BMV 600 WORK
10. a reliable readout of the state of charge of the battery the battery monitor has to be synchronized regularly with battery and charger This is accomplished by fully charging the battery When the charger is operating in the float stage the charger considers the battery full At this moment the BMV 600 must determine that the battery as full too so that the Amphour count can be reset to zero and the state of charge reading set to 100 0 By precisely adjusting the charged parameters in the BMV 600 the battery monitor can automatically synchronize with the charger when the float stage is reached The range of the chargedparameters is wide enough to adjust the BMV 600 to most battery charging methods When the supply voltage to the BMV 600 has been interrupted the battery monitor must always be synchronized in order to operate correctly When power is first applied the monitor is always preset in setup mode this is the mode to set the parameters Please note that regularly at least once per month fully charging your battery not only keeps it in sync with the BMV 600 but it also prevents substantial capacity loss of your battery that limits it s life time 2 5 Function overview The BMV 600 factory settings are suitable for an average 12V 24V lead acid battery system of 200Ah So in most cases when monitoring a 12V 24V System the only menu item which possibly needs to be changed is the battery capacity CB When using other types of
11. atteries However for precise battery monitoring entering the right Peukert exponent is essential If the Peukert exponent is not provided with your battery you can calculate it by using other specifications which must be provided with your battery The Peukert equation is stated below Cp lt where Peukert exponent n The battery specifications needed for calculation of the Peukert exponent are the rated battery capacity usually the 20hr discharge rate and for example a 5hr discharge rate See the calculation example below to define the Peukert exponent using these two specifications 5hr rating C5 75Ah gt t1 5hr gt 11 75Ah 5hr 15A 20hr rating C20 100Ah rated capacity gt t2 20hr gt I2 100Ah 20hr 5A log20 log5 Peukert exponent n lel So lags 1 26 When no ratings are given at all you can measure your battery using a constant load bank In this way a second rating can be obtained besides the 20hr rating which represents the rated battery capacity in most cases This second rating can be defined by discharging a fully charged battery with a constant current until the battery reaches 1 75V per cell is 10 5V for a 12V battery or 21V for a 24V battery A calculation example is shown below 1 Please note that the rated battery capacity can also be defined as the 10hr or even 5hr discharge rate The 5hr discharge rate in this example is just arbitrary Make sure that besides the
12. attery can support the present load before it needs recharging 16 4 SPECIAL FEATURES After power up the battery monitor does a guess on the nominal voltage of the battery Thereby the following rules are used 1 The measured voltage will be converted to a nominal voltage with the following table Lower Upper Nominal High Charged boundary V boundary V Battery Voltage Voltage Nom voltage V Nom Nom 25 25 15 lt lt 15 12 15 13 8 15 30 24 30 27 6 30 45 36 45 41 4 45 60 48 60 55 2 60 90 72 90 82 8 2 nominal voltage can only be increased 3 After one hour of charging the battery monitor will stop guessing and maintain the voltage as it is at that moment 4 If the High Voltage or Charged Voltage is altered by the user the battery monitor stops guessing 5 settings for High Voltage en Charged Voltage are changed according to the table 17 5 TECHNICAL DATA Supply voltage range Supply current no alarm condition Vin 24VDC without back lighting Vin 12VDC without back lighting Input voltage range auxilary battery Input current range Battery capacity range Operating temperature range Readout resolution Voltage 0 135V Current 0 10A Current 10 500A Amphours 0 200Ah Amphours 200 2000Ah State of charge 0 10096 Time to go 0 100hrs Time to go 100 240hrs Voltage
13. e But how do you know how much energy is stored in your battery No one can tell by just looking at it Battery technology is often oversimplified but some basic battery knowledge and good monitoring is essential if you want to enjoy maximum life from your expensive batteries The life time of batteries depends on many factors Battery life reduces by under charging over charging excessively deep discharge too fast a discharge and too high an ambient temperature By monitoring your battery with an advanced battery monitor like the BMV 600 important feedback is given to the user so that remedial measures can be taken when necessary This way by extending battery life the BMV 600 will quickly pay for itself 1 3 How does the 600 work The capacity of a battery is rated in Amphours Ah For example a battery that can deliver a current of 5Amps for a period of 20hours is rated at 100Ah 5 20 100 The BMV 600 continuously measures the nett current flow in or out of the battery so it can calculate the amount of energy removed from or added to the battery But since battery age discharge current and temperature all influence the battery s capacity you can t rely simply on an Amp hours reading When the same 100Ah battery is discharged completely in two hours it will give you only 56Ah because of the higher rate of discharge As you can see the battery s capacity is almost halved This phenomenon is called Peukert efficiency se
14. e also chapter 2 2 Also when the temperature of the battery is low its capacity is decreased even more This is why simple Amphour counters or Voltmeters give you far from an accurate state of charge indication The BMV 600 can display both Amphours removed not compensated and actual state of charge compensated by Peukert efficiency and charge efficiency Reading state of charge is the best way to read your battery This parameter is given in percent where 100 0 represents a fully charged battery and 0 096 a completely flat battery You can compare this with a fuel gauge in a car The BMV 600 also makes an estimation of the time the battery can support the present load time to go readout This is actually the time left till the battery needs to be charged again If the battery load is fluctuating heavily it is best not to rely on this reading too much since it is a momentary readout and must be used as a guide only We always encourage the use of the state of charge readout for accurate battery monitoring Besides the main function of the BMV 600 displaying the actual battery status this monitor offers many other features The readout of actual battery voltage and current the ability to store historic data the PC computer link and the voltage of the start battery are just a few features of the BMV 600 These features are more specifically explained in the corresponding chapters of this manual 1 4 Safety Precautions Working
15. emain in the display Clear low battery buzzer alarm When the state of charge percentage has risen above this value the alarm is turned off This value needs to be larger then or equal to AS Undervoltage relay alarm When the battery voltage falls below this value after 10 seconds the alarm relay will be activated Clear undervoltage relay alarm When the battery voltage rises above this value the alarm relay will be de activated This value needs to be larger then or equal to RI Overvoltage relay alarm When the battery voltage rises above this value after 10 seconds the alarm relay will be activated Clear overvoltage relay alarm When the battery voltage falls below this value the alarm relay will be de activated This value needs to be less then or equal to Rh Backlight intensity The intensity of the backlight ranging from 0 always off to 9 maximum intensity Display battery voltage on off Determines if this value is available in display mode Display current on off Determines if this value is available in display mode Display consumed enegy on off Determines if this value is available in display mode 14 D SOC Display state of charge on off Determines if this value is available in display mode D TTG Display time to go on off Determines if this value is available in display mode Lock When on all settings except this one are locked and cannot be altered SW Firmware version cannot be altered
16. in vicinity of a lead acid battery is dangerous Batteries can generate explosive gases during operation Never smoke or allow a spark or flame in the vicinity of a battery Provide sufficient ventilation around the battery Wear eye and clothing protection Avoid touching eyes while working near batteries Wash your hands when done If battery acid contacts skin or clothing wash immediately with Soap and water If acid enters eye immediately flood eye with running cold water for at least 15 minutes and get medical attention immediately Be careful when using metal tools in vicinity of batteries Dropping a metal tool onto a battery might cause a short circuit battery and possibly an explosion Remove personal metal items such as rings bracelets necklaces and watches when working with a battery A battery can produce a short circuit current high enough to melt a ring or the like to metal causing severe burns Included 600 battery monitor Safety and Regulatory information 500A 50mvV current shunt This user and installation manual Quick install guide Front mounting kit incl 4 screws 2 SETTING UP THE 600 Before proceeding with this chapter please make sure your BMV 600 is fully installed in accordance with to the enclosed installation guide When your BMV 600 is installed it is time to adjust the battery monitor to your battery system But before discussing the functions in the setup menu four imp
17. ortant items are explained first in the following chapters It is important that as a user of the BMV 600 you have some insight into these four items The actual setup menu functions are explained in chapter 2 5 Function overview 2 1 Charge Efficiency Factor CEF Not all energy transferred into the battery during battery charging is available during discharge of the battery The charge efficiency of a brand new battery is approximately 90 meaning that 10Ah must be transferred to the battery to get 9Ah actually stored in the battery This efficiency figure is called Charge Efficiency Factor CEF and will decrease with battery age The BMV 600 can automatically calculate the CEF of the battery 2 2 Peukert s exponent As mentioned earlier in chapter 1 3 the Peukert efficiency describes how when you discharge a battery faster than the 20hr rating its Amphour capacity decreases The amount of battery capacity reduction is called Peukert exponent and can be adjusted from 1 00 to 1 50 The higher the Peukert exponent the faster the battery size shrinks with increasing discharge rate An ideal theoretical battery has a Peukert Exponent of 1 00 and doesn t care how big the discharge current is Of course such batteries do not exist and a setting of 7 00 is only implemented to bypass Peukert compensation in the BMV 600 The default setting for the Peukert exponent is 1 25 and is an acceptable average value for most lead acid type of b
18. tween the available values Select displayed item The next enabled item is displayed 10 sec In setup mode When these buttons are pressed together for more than 10 seconds all Up Down parameters will be set to the default values In historic mode When these buttons are pressed together for more than 10 seconds all historic values will be cleared 11 In setup mode the following parameters can be set Name Description Min Max Default Resolution Unit Cb Battery capacity 20 9999 200 1 Ah Ve Charged voltage 00 1500 13 2 v It Tail current 05 10 0 20 Tcd Charged detection time 1 4 3 1 min CEF Charge efficiency factor 50 99 90 1 Peukert exponent 000 150 125 0 01 Ith Current threshold 0 00 2 00 0 01 0 01 A Tdt Time To Go At 0 12 3 1 min DF Discharge floor SOC relay 00 990 500 cis Clear SOC relay 00 990 900 Al Alarm low voltage buzzer 0 0 99 0 0 0 v Clear low voltage alarm 00 990 00 v Ah Alarm high voltage buzzer 0 0 99 0 0 0 v Ahc Clear high voltage alarm 00 990 00 5 Alarm low SOC buzzer 00 990 00 ASc Clear low SOC alarm 00 990 00 RI Relay low voltage 00 990 00 v Ric Clear relay low voltage 0 0 99 0 0 0 v Rh Relay high voltage 0 0 99 0 0 0 v Rhc Clear relay high voltage 00 990 00 v BLI Backlight intensity 0
Download Pdf Manuals
Related Search