Victron BMV-700, BMV-700H User Manual
Manual
Handleiding
Manuel
Anleitung
Manual
Battery Monitor
EN
NL
FR
DE
ES
BMV-700
BMV-700H
BMV-702
BMV-712 Smart
SE
Användarhandbok
Appendix
Appendix
1 QUICK START GUIDE
1.1 Battery capacity
1.2 Auxiliary input (BMV-702 and BMV-712 Smart only)
1.3 Important combined button functions
2 NORMAL OPERATING MODE
2.1 Read-out overview
2.2 Synchronising the BMV
2.3 Common problems
3 FEATURES AND FUNCTIONALITY
3.1 Features of the three BMV models
3.2 Why should I monitor my battery?
3.3 How does the BMV work?
3.3.1 About battery capacity and the rate of discharge
3.3.2 About charge efficiency (CEF)
3.4 Several battery state of charge display options
3.5 History data
3.6 Use of alternative shunts
3.7 Automatic detection of nominal system voltage
3.8 Alarm, buzzer and relay
3.9 Interface options
3.9.1 PC Software
3.9.2 Large display and remote monitoring
3.9.3 Custom integration (programming required)
3.10 Additional functionality of the BMV-702 and BMV-712 Smart
3.10.1 Auxiliary battery monitoring
3.10.2 Battery temperature monitoring
3.10.3 Midpoint voltage monitoring
3.11 Additional functionality of the BMV-712 Smart
3.11.1 Automatic cycling through status-items
3.11.2 Turning Bluetooth On/Off
4 FULL SETUP DETAILS
4.1 Using the menus
4.2 Function overview
4.2.1 Battery settings
4.2.2 Relay settings
4.2.3 Alarm-Buzzer settings
4.2.4 Display settings
4.2.5 Miscellaneous
4.3 History data
5 MORE ABOUT PEUKERT’S FORMULA AND MIDPOINT MONITORING
6 LITHIUM IRON PHOSPHATE BATTERIES (LiFePO4)
7 DISPLAY
8 TECHNICAL DATA
1
EN NL FR DE ES SE Appendix
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Safety Precautions
Transport and storage
• Working in the 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 them
immediately with soap and water. If acid enters an eye,
immediately flood the eye with running cold water for at
least 15 minutes and get medical attention immediately.
• Be careful when using metal tools in the vicinity of
batteries. Dropping a metal tool onto a battery might
cause a short circuit 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 objects such as rings, causing severe burns.
• Store the product in a dry environment.
• Storage temperature: -40°C to +60°C
2
1 QUICK START GUIDE
This quick start guide assumes that the BMV is being installed for the first
time, or that factory settings have been restored.
Please see the appendix at the end of this manual for wiring suggestions.
The factory settings are suitable for the average lead acid battery:
flooded, GEL or AGM.
The BMV will automatically detect the nominal voltage of the battery
system immediately after completion of the setup wizard (for details and
limitations of automatic nominal voltage detection, see section 3.8).
Therefore the only settings which need to be made are the battery capacity
(BMV-700 and BMV-700H), and the functionality of the auxiliary input
(BMV-702 and BMV-712).
Please install the BMV in accordance with the quick installation guide.
After inserting the fuse in the positive supply cable to the main battery, the
BMV will automatically start the setup wizard.
The setup wizard below must be completed before other settings can be
made. Alternatively, use the VictronConnect app and a smart phone.
Remarks:
a) In case of solar applications or Li-ion batteries several settings may
have to be changed. Please refer to section 2.3 resp. section 6. The setup
wizard below must be completed before other settings can be made.
b) When using a shunt other than the one supplied with the BMV,
please refer to section 3.6. The setup wizard below must be completed
before other settings can be made.
c) Bluetooth
Use a Bluetooth Smart enabled device (smart phone or tablet) for easy
and fast initial setup, for changing settings and for real time monitoring.
BMV-700 or -702: VE.Direct Bluetooth Smart dongle needed.
BMV-712 Smart: Bluetooth enabled, no dongle needed. Ultra low current
draw.
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3
Bluetooth:
VE.Direct Bluetooth Smart dongle: see the manual on our website
https://www.victronenergy.com/live/ve.direct:ve.direct_to_bluetooth_smart_
dongle
BMV-712 Smart:
Download the VictronConnect app (see Downloads on our website)
https://www.victronenergy.com/live/victronconnect:start
Pairing procedure: the default PIN code is 000000
After connecting, the PIN code can be changed by pressing the (i) button in
the top right of the app.
If the dongle PIN code is lost, reset it to 000000 by pressing and holding
the clear PIN button until the solid blue colored Bluetooth light flashes off
and on momentarily.
4
Setup wizard (alternatively, use the VictronConnect app and smart phone):
1.1 Battery capacity (preferably use the 20 hour capacity rating (C
20))
a) After inserting the fuse the display will show the scrolling text
If this text is not shown, press SETUP and SELECT simultaneously during 3
seconds to restore factory settings or go to section 4 for full setup details
(setting 64, Lock setup, must be OFF to restore factory settings, see
section 4.2.5).
b) Press any button to stop scrolling and the factory default value
will appear in edit mode: the first digit will blink.
Enter the desired value with the + and – buttons.
c) Press SELECT to set the next digit in the same manner.
Repeat this procedure until the required battery capacity is displayed.
The capacity is automatically stored in non-volatile memory when the last
digit has been set by pressing SELECT. This is indicated with a short
beep.
If a correction has to be made, press SELECT again and repeat the
procedure.
d) BMV-700 and 700H: press SETUP or + or – to end the setup wizard and
switch to normal operating mode.
BMV-702: press SETUP or + or – to proceed to auxiliary input setting.
1.2 Auxiliary input (BMV-702 and -712 only)
a) The display will show
scrolling.
b) Press SELECT to stop scrolling and the LCD will show:
Use the + or – key to select the required function of the auxiliary input:
for monitoring the starter battery voltage.
for monitoring the midpoint voltage of a battery bank.
for using the optional temperature sensor
Press SELECT to confirm. Confirmation is indicated with a short beep.
c) Press SETUP or + or – to end the setup wizard and switch to normal
operating mode.
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The BMV is now ready for use.
When powered up for the first time, the BMV will by default display 100%
state of charge. See section 4.2.1, setting 70 to change this this
behaviour.
When in normal mode the backlight of the BMV switches off after no key
has been pressed for 60 seconds. Press any key to restore backlight.
The cable with integrated temperature sensor has to be purchased
separately (part no: ASS000100000). This temperature sensor is not
interchangeable with other Victron temperature sensors, as used with
Multis/Quattros or battery chargers.
1.3 Important combined button functions
(see also section 4.1: using the menus)
a) Restore factory settings
Press and hold SETUP and SELECT simultaneously for 3 seconds
b) Manual synchronisation
Press and hold the up and down buttons simultaneously for 3 seconds
c) Silence audible alarm
An alarm is acknowledged when any button is pressed. However, the
alarm icon is displayed as long as the alarm condition remains.
1.4 Realtime data displayed on a smartphone
With the VE.Direct Bluetooth Smart dongle realtime data and alarms can
be displayed on Apple and Android smartphones, tablets and other
devices.
Note:
A VE.Direct Bluetooth Smart dongle is not required for BMV-712, since it
has Bluetooth built-in.
6
2 NORMAL OPERATING MODE
2.1 Readout overview
In normal operating mode the BMV displays an overview of important
parameters.
The + and – selection buttons give access to various readouts:
Battery voltage
Auxiliary battery voltage
BMV-702 and -712 only, when the auxiliary
input is set to START.
Current
The actual current flowing out of the battery
(negative sign) or into the battery (no sign).
Power
The power drawn from the battery (negative
sign) or flowing into the battery (no sign).
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7
Consumed Amp-hours
The amount of Ah consumed from the
battery
Example:
If a current of 12A is drawn from a fully charged battery for a period of 3
hours, this readout will show -36.0Ah.
(-12 x 3 = -36)
Note:
Three dashes ‘---’ will be shown when the BMV is started in
unsynchronised state. See section 4.2.1, setting number 70.
State of charge
A fully charged battery will be indicated by a
value of 100.0%. A fully discharged battery
will be indicated by a value of 0.0%.
Note:
Three dashes ‘---’ will be shown when the BMV is started in
unsynchronised state. See section 4.2.1, setting number 70.
Time-to-go
An estimation of how long the battery can
support the present load until it needs
recharging.
The time-to-go displayed is the time to reach the discharge floor.
See 4.2.2, setting number 16.
Note:
Three dashes ‘---’ will be shown when the BMV is started in
unsynchronised state. See section 4.2.1, setting number 70.
8
Battery temperature
BMV-702 and -712 only, when the auxiliary
input is set to TEMP.
The value can be displayed in degrees Celsius or degrees Fahrenheit.
See section 4.2.5.
Battery bank top section voltage
BMV-702 and -712 only, when the auxiliary
input set to MID.
Compare with the bottom section voltage to check battery balancing.
For more about battery midpoint monitoring, see section 5.2.
Battery bank bottom section voltage
BMV-702 and -712 only, when the auxiliary
input is set to MID.
Compare with the top section voltage to check battery balancing.
Battery bank midpoint deviation
BMV-702 and -712 only, when the auxiliary
input is set to MID.
Deviation in percent of the measured midpoint voltage.
Battery bank midpoint deviation voltage
BMV-702 and -712 only, when the auxiliary
input is set to MID.
Deviation in Volts of the midpoint voltage.
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2.2 Synchronising the BMV
For a reliable readout, the state of charge as displayed by the battery
monitor has to be synchronised regularly with the true state of charge of
the battery. This is accomplished by fully charging the battery.
In case of a 12V battery, the BMV resets to ‘fully charged’ when the
following ‘charged parameters’ are met: the voltage exceeds 13.2V and
simultaneously the (tail-) charge current is less than 4.0% of the total
battery capacity (e.g. 8A for a 200Ah battery) during 3 minutes.
The BMV can also be synchronised (i.e. set to ‘battery fully charged’)
manually if required. This can be achieved in normal operating mode by
holding the + and – buttons simultaneously for 3 seconds, or in setup
mode by using the SYNC option (see section 4.2.1, setting number 10).
By default, the BMV is configured to start-up in a synchronised state and
will indicate a state of charge of 100%. This behaviour can be changed:
see section 4.2.1, setting number 70.
If the BMV does not synchronise automatically, the charged voltage, tail
current, and/or charged time may need adjustment. When the voltage
supply to the BMV has been interrupted, the battery monitor must be
resynchronised before it can operate correctly.
After having synchronised for the first time (automatically or manually),
the BMV keeps track of the number of automatic synchronisations: see
section 4.3, history item SYNCHRONISATIONS.
10
2.3 Common problems
No signs of life on the display
Probably the BMV is not properly wired. The UTP cable should be
properly inserted at both ends, the shunt must be connected to the minus
pole of the battery, and the positive supply cable should be connected to
the plus pole of the battery with the fuse inserted.
The temperature sensor (when used) must be connected to the positive
pole of the battery bank (one of the two wires of the sensor doubles as
the power supply wire).
Charge and discharge current are inverted
Charge current should be shown as a positive value.
For example: 1.45A.
Discharge current should be shown as a negative value.
For example: -1.45A.
If charge and discharge current are inverted, the power cables on the
shunt must be swapped: see the quick installation guide.
The BMV does not synchronise automatically
One possibility is that the battery never reaches the fully charged state.
The other possibility is that the charged voltage setting should be lowered
and/or the tail current setting should be increased.
See section 4.2.1.
The BMV synchronises too early
In solar systems or other applications with fluctuating charge currents, the
following measures can be taken to reduce the probability for the BMV to
reset prematurely to 100% state of charge:
a) Increase the “charged” voltage to only slightly below the absorption charge voltage (for
example: 14.2V in case of 14.4V absorption voltage).
b) Increase the “charged” detection time and/or decrease the tail current to prevent an
early reset due to to passing clouds.
See section 4.2.1 for set up instructions.
Sync and battery icon are blinking
This means the battery is not synchronised. Charge the batteries and the
BMV should sync automatically. If that doesn't work, review the sync
settings. Or, if you know the battery is fully charged but don't want to wait
until the BMV synchronises: press and hold the up and down button
simultaneously, until you hear a beep.
See section 4.2.1.
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11
BMV700
BMV-
700H
BMV-702
and 712
Comprehensive monitoring
of a single battery
• • •
Basic monitoring of an
auxiliary battery
•
Battery temperature
monitoring
•
Monitoring of the midpoint
voltage of a battery bank
•
• • •
Automatic detection of
nominal system voltage
• • •
Suitable for high voltage
systems
•
• • •
3 FEATURES AND FUNCTIONALITY
3.1 Features of the four BMV models
The BMV is available in 4 models, each of which addresses a different set
of requirements.
1
2
3
4
5 Use of alternate shunts
6
7
8 Several interface options
Remark 1:
Features 2, 3 and 4 are mutually exclusive.
Remark 2:
The cable with integrated temperature sensor has to be purchased
separately (part no: ASS000100000).This temperature sensor is not
interchangeable with other Victron temperature sensors, as used with
Multis or battery chargers.
3.2 Why should I monitor my battery?
Batteries are used in a wide variety of applications, mostly to store energy
for later use. But how much energy is stored in the battery? No one can
tell by just looking at it.
12
The service life of batteries depends on many factors. Battery life may be
shortened by undercharging, overcharging, excessively deep discharges,
excessive charge or discharge current, and high ambient temperature. By
monitoring the battery with an advanced battery monitor, important
feedback is given to the user so that remedial measures can be taken
when necessary. Doing this, which extends battery life, the BMV will
quickly pay for itself.
3.3 How does the BMV work?
The main function of the BMV is to follow and indicate the state of charge
of a battery, in particular to prevent unexpected total discharge.
The BMV continuously measures the current flow in and out of the
battery. Integration of this current over time (which, if the current is a fixed
amount of Amps, boils down to multiplying current and time) gives the net
amount of Ah added or removed.
For example: a discharge current of 10A during 2 hours will take 10 x 2 =
20Ah from the battery.
To complicate matters, the effective capacity of a battery depends on the
rate of discharge and, to a lesser extent, on temperature.
And to make things even more complicated: when charging a battery
more Ah has to be ‘pumped’ into the battery than can be retrieved during
the next discharge. In other words: the charge efficiency is less than
100%.
3.3.1 About battery capacity and the rate of discharge
The capacity of a battery is rated in ampere-hours (Ah). For example, a
lead acid battery that can deliver a current of 5A during 20 hours is rated
20 = 100Ah (5 x 20 = 100).
at C
When the same 100Ah battery is discharged completely in two hours, it
may only give C
2 = 56Ah (because of the higher rate of discharge).
The BMV takes this phenomenon into account with Peukert’s formula: see
section 5.1.
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3.3.2 About charge efficiency (CEF)
The charge efficiency of a lead acid battery is almost 100% as long as no
gas generation takes place. Gassing means that part of the charge
current is not transformed into chemical energy, which is stored in the
plates of the battery, but is used to decompose water into oxygen and
hydrogen gas (highly explosive!). The ‘Amp-hours’ stored in the plates
can be retrieved during the next discharge, whereas the ‘Amp-hours’
used to decompose water are lost.
Gassing can easily be observed in flooded batteries. Please note that the
‘oxygen only’ end of charge phase of sealed (VRLA) gel and AGM
batteries also results in a reduced charge efficiency.
A charge efficiency of 95% means that 10Ah must be transferred to the
battery to get 9.5Ah actually stored in the battery. The charge efficiency of
a battery depends on battery type, age and usage.
The BMV takes this phenomenon into account with the charge efficiency
factor: see section 4.2.2, setting number 06.
3.4 Several battery state of charge display options
The BMV can display both the Amp-hours removed (‘consumed Amphours’ readout, compensated for charge efficiency only) and the actual
state of charge in percent (‘state of charge’ readout, compensated for
charge efficiency and Peukert efficiency). Reading the state of charge is
the best way to monitor the battery.
The BMV also estimates how long the battery can support the present
load: the ‘time-to-go’ readout. This is the actual time left until the battery is
discharged to the discharge floor. The factory discharge floor setting is
50% (see 4.2.2, setting number 16).
If the 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 guideline
only. We always encourage the use of the state of charge readout for
accurate battery monitoring. The battery state of charge indicator (see
chapter 7 “Display”) scales between the configured discharge floor and
100% state of charge and reflects the effective state of charge.
3.5 History data
The BMV stores events which can be used at a later date to evaluate
usage patterns and battery health.
Select the history data menu by pressing ENTER when in normal mode
(see section 4.3).
14
Measured
voltage (V)
Assumed nominal
voltage (V)
Charged voltage
(V)
< 18
12
13.2
18 – 36
24
26.4
> 36
48
52.8
BMV-700H
Default nominal voltage: 144V
Default: 158.4V
3.6 Use of alternative shunts
The BMV is supplied with a 500A / 50mV shunt. For most applications,
this should be suitable; however the BMV can be configured to work with
a wide range of different shunts. Shunts of up to 9999A, and/or 75mV can
be used.
When using a shunt other than the one supplied with the BMV, please
proceed as follows:
1. Unscrew the PCB from the supplied shunt.
2. Mount the PCB on the new shunt, ensuring that there is good
electrical contact between the PCB and the shunt.
3. Connect the shunt and BMV as shown in the quick installation
guide.
4. Follow the Setup wizard (section 1.1 and 1.2).
5. After completion of the Setup wizard, set the proper shunt
current and shunt voltage according to section 4.2.5, setting
number 65 and 66.
6. If the BMV reads a non-zero current even when there is no load
and the battery is not being charged: calibrate the zero current
reading (see section 4.2.1, setting number 09).
3.7 Automatic detection of nominal system voltage
The BMV will automatically adjust itself to the nominal voltage of the
battery bank, immediately after completion of the setup wizard.
The following table shows how the nominal voltage is determined, and
how the charged voltage parameter (see section 2.2) is adjusted as a
result.
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BMV-700 & 702 &
In case of another nominal battery bank voltage (32V for example), the
charged voltage must be set manually: see section 4.2.1, setting 02.
712
15
Recommended settings:
Nominal battery voltage Recommended Charged Voltage setting
12V 13.2V
24V 26.4V
36V 39.6V
48V 52.8V
60V 66V
120V 132V
144V 158.4V
288V 316.8V
3.8 Alarm, buzzer and relay:
On most of the BMV’s readings an alarm can be triggered when the value
reaches a set threshold. When the alarm becomes active the buzzer
starts to beep, the backlight flashes and the alarm icon is visible in the
display along with the current value.
The corresponding segment will also flash. AUX when a starter alarm
occurs. MAIN, MID or TEMP for the corresponding alarm.
(When in the setup menu and an alarm occurs, the value causing the
alarm will not be visible.)
An alarm is acknowledged when a button is pressed. However, the alarm
icon is displayed as long as the alarm condition remains.
It is also possible to trigger the relay when an alarm condition occurs.
BMV-700 and -702
The relay contact is open when the coil is de-energised (NO contact), and
will close when the relay is energised.
Factory default setting: the relay is controlled by the state of charge of the
battery bank. The relay will be energised when the state of charge
decreases to less than 50% (the ‘discharge floor’), and will be deenergised when the battery has been recharged to 90% state of charge.
See section 4.2.2.
The relay function can be inverted: de-energised becomes energised and
vice versa. See section 4.2.2.
When the relay is energised, the current drawn by the BMV will increase
slightly: see technical data.
16
BMV-712 Smart
The BMV-712 has been designed to minimize power consumption.
The alarm relay therefore is a bistable relay, and the current draw remains
low whatever the position of the relay.
3.9 Interface options
3.9.1 PC Software
Connect the BMV to the computer with the VE.Direct to USB interface
cable (ASS030530000) and download the appropriate software.
https://www.victronenergy.com/live/victronconnect:start
3.9.2 Large display and remote monitoring
The Color Control GX, a display featuring a 4.3” colour display, provides
intuitive control and monitoring for all products connected to it. The list of
Victron products that can be connected is endless: Inverters, Multis,
Quattros, MPPT solar chargers, BMV, Skylla-i, Lynx Ion and more. The
BMV can be connected to the Color Control GX with a VE.Direct cable. It
is also possible to connect it with the VE.Direct to USB interface. Besides
monitoring and controlling locally with the Color Control GX, the
information is also forwarded to our free remote monitoring website: the
VRM Online Portal.
documentation on our website.
For more information, see the Color Control GX
3.9.3 Custom integration (programming required)
The VE.Direct communications port can be used to read data and change
settings. The VE.Direct protocol is extremely simple to implement.
Transmitting data to the BMV is not necessary for simple applications: the
BMV automatically sends all readings every second. All the details are
explained in this document:
https://www.victronenergy.com/upload/documents/Whitepaper-Datacommunication-with-Victron-Energy-products_EN.pdf
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3.10 Additional functionality of the BMV-702 and -712
In addition to the comprehensive monitoring of the main battery system,
the BMV-702 and -712 have a second monitoring input. This secondary
input has three configurable options, described below.
3.10.1 Auxiliary battery monitoring
Wiring diagram: see the quick installation guide. Fig 3
This configuration provides basic monitoring of a second battery,
displaying its voltage. This is useful for systems with a separate starter
battery.
3.10.2 Battery temperature monitoring
Wiring diagram: see the quick installation guide. Fig 4
The cable with integrated temperature sensor has to be purchased
separately (part no: ASS000100000). This temperature sensor is not
interchangeable with other Victron temperature sensors, as provided with
Multis or battery chargers. The temperature sensor must be connected to
the positive pole of the battery bank (one of the two wires of the sensor
doubles as the power supply wire).
The temperature can be displayed in degrees Celsius or degrees
Fahrenheit, see section 4.2.5, setting number 67.
The temperature measurement can also be used to adjust battery
capacity to temperature, see section 4.2.5, setting number 68.
The available battery capacity decreases with temperature.
Typically, the reduction, compared to the capacity at 20°C, is 18% at 0°C
and 40% at -20°C.
3.10.3 Midpoint voltage monitoring
Wiring diagram: see the quick installation guide. Fig 5 - 12
One bad cell or one bad battery can destroy a large, expensive battery
bank.
A short circuit or high internal leakage current in one cell for example will
result in under charge of that cell and over charge of the other cells.
Similarly, one bad battery in a 24V or 48V bank of several series/parallel
connected 12V batteries can destroy the whole bank.
Moreover, when cells or batteries are connected in series, they should all
have the same initial state of charge. Small differences will be ironed out
during absorption or equalise charging, but large differences will result in
damage during charging due to excessive gassing of the cells or batteries
with the highest initial state of charge.
18
A timely alarm can be generated by monitoring the midpoint of the battery
bank. For more information, see section 5.1.
3.11 Additional functionality of the BMV-712 Smart
3.11.1 Automatic cycling through status items
The BMV-712 can be instructed to automatically cycle through the status
items by keeping the minus button pressed for 3 seconds. This enables
one to keep an eye on their system’s status without the need to operate
the BMV-712. Automatic cycling through status items is disabled again by
pressing any of the buttons.
3.11.2 Turning Bluetooth On/Off
The BMV-712’s on-board Bluetooth module can be turned on or off
through the settings menu. See section 4.2.1, setting 71.
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Function
When in normal mode
When in setup mode
Press SETUP at any time to return to the
- Press to stop scrolling after entering the
Press and hold both SETUP and
section 4.2.5)
When not editing, press to move up to the
previous parameter.
When editing, this button will increment
the value of the selected digit.
When not editing, press to move down to
the next parameter.
When editing, this button will decrement
the value of the selected digit.
BMV-712 only: Press and hold
items.
Press and hold both buttons
to manually synchronise the BMV
4 FULL SETUP DETAILS
4.1 Using the menus
(alternatively, use the VictronConnect app and smart phone)
Four buttons control the BMV. The function of the buttons depends on
which mode the BMV is in.
Button
If backlight is off, press any button to restore backlight
SETUP
Press and hold for two seconds
to switch to setup mode.
The display will scroll the number
and description of the selected
parameter.
scrolling text, and press again to return to
normal mode.
When pressing SETUP while a parameter
is out of range, the display blinks 5 times
and the nearest valid value is displayed.
Press to switch to history menu.
SELECT
SETUP/
SELECT
+ Move upwards
–
+/–
Press to stop scrolling and show
the value. Press again to switch
back to normal mode.
SELECT buttons simultaneously
for three seconds to restore
factory settings (disabled when
setting 64, lock setup, is on, see
Move downwards
for three seconds (until the
confirmation beep) to start
automatic cycling through status
simultaneously for three seconds
20
setup mode with the SETUP button.
- After editing the last digit, press to end
editing. The value is stored automatically.
Confirmation is indicated by a short beep.
- If required, press again to restart editing.
When power is applied for the first time or when factory settings have
been restored, the BMV will start the quick setup wizard: see section 1.
Thereafter, if power is applied, the BMV will start in normal mode: see
section 2.
4.2 Functions overview
The following summary describes all the parameters of the BMV.
- Press SETUP for two seconds to access these functions and use the
+ and – buttons to browse them.
- Press SELECT to access the desired parameter.
- Use SELECT and the + and – buttons to customize. A short beep
confirms the setting.
- Press SETUP at any time to return to the scrolling text, and press
again to return to normal mode.
4.2.1 Battery settings
______________________________________________________________
01. Battery capacity
Battery capacity in amp hours
Default Range Step size
200Ah 1 – 9999Ah 1Ah
______________________________________________________________
02. Charged voltage
The battery voltage must be above this voltage level to consider the battery as fully
charged.
The charged-voltage-parameter should always be slightly below the end of charge voltage of the
charger (usually 0.2V or 0.3V below the ‘float’ voltage of the charger).
See section 3.7 for recommended settings.
BMV-700 / BMV-702 / BMV-712 Smart
Default Range Step size
See table, sect 3.7 0 – 95V 0.1V
BMV-700H
Default Range Step size
158.4V 0 – 384V 0.1V
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03. Tail current
Once the charge current has dropped to less than the set tail current (expressed as
percentage of the battery capacity), the battery is considered as fully charged.
Remark:
Some battery chargers stop charging when the current drops below a set threshold. The tail current must
be set higher than this threshold.
Default Range Step size
4% 0.5 – 10% 0.1%
21
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04. Charged detection time
This is the time the charged-parameters (Charged voltage and Tail current) must be met
in order to consider the battery fully charged.
Default Range Step size
3 minutes 1 – 50 minutes 1 minute
______________________________________________________________
05. Peukert exponent
When unknown it is recommended to keep this value at 1.25 (default) for lead acid batteries
and change to 1.05 for Li-ion batteries. A value of 1.00 disables the Peukert compensation.
Default Range Step size
1.25 1 – 1.5 0.01
______________________________________________________________
06. Charge Efficiency Factor
The Charge Efficiency Factor compensates for the Ah losses during charging.
100% means no loss.
Default Range Step size
95% 50 – 100% 1%
______________________________________________________________
07. Current threshold
When the current measured falls below this value it will be considered zero.
The current threshold is used to cancel out very small currents that can negatively affect the long term state
of charge readout in noisy environments. For example if the actual long term current is 0.0A and due to
injected noise or small offsets the battery monitor measures -0.05A, and in the long term the BMV can
incorrectly indicate that the battery needs recharging. When the current threshold in this example is set to
0.1A, the BMV calculates with 0.0A so that errors are eliminated.
A value of 0.0A disables this function.
Default Range Step size
0.1A 0 – 2A 0.01A
______________________________________________________________
08. Time-to-go averaging period
Specifies the time window (in minutes) that the moving averaging filter works.
A value of 0 disables the filter and gives an instantaneous (real-time) readout; however the displayed value
may fluctuate heavily. Selecting the longest time (12 minutes) ensures that only long term load fluctuations
are included in the time-to-go calculations.
Default Range Step size
3 minutes 0 – 12 minutes 1 minute
_______________________________________________________________
09. Zero current calibration
If the BMV reads a non-zero current even when there is no load and the battery is not being
charged, this option can be used to calibrate the zero reading.
Ensure that there really is no current flowing into or out of the battery (disconnect the cable
between the load and the shunt), then press SELECT.
_______________________________________________________________
10. Synchronise
This option can be used to manually synchronise the BMV.
Press SELECT to synchronise.
The BMV can also be synchronised when in normal operating mode by holding the + and – buttons
simultaneously for 3 seconds.
.
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4.2.2 Relay settings
Remark: thresholds are disabled when set at 0
_______________________________________________________________
11. Relay mode
DFLT Default mode. The relay thresholds Nos. 16 up to 31 can be used to control the relay.
CHRG Charger mode. The relay will close when the state of charge falls below setting 16
(discharge floor) or when the battery voltage falls below setting 18 (low voltage relay).
The relay will be open when the state of charge is higher than setting 17 (clear state of
charge relay) and the battery voltage is higher than setting 19 (clear low voltage relay).
Application example: start and stop control of a generator, together with settings 14 and 15.
REM Remote mode. The relay can be controlled via the VE.Direct interface. Relay settings
12 and 14 up to 31 are ignored as the relay is under the full control of the device connected
via the VE.Direct interface.
_______________________________________________________________
12. Invert relay
This function enables selection between a normally de-energised (contact open) or a
normally energised (contact closed) relay. When inverted, the open and closed conditions
as described in setting 11 (DFLT and CHRG), and settings 14 up to 31 are inverted.
The normally energised setting will slightly increase supply current in the normal operating mode.
Default Range
OFF: Normally de-energised OFF: Normally de-energised / ON: normally energised
_______________________________________________________________
13. Relay state (read only)
Displays whether the relay is open or closed (de-energised or energised).
Range
OPEN/CLSD
_______________________________________________________________
14. Relay minimum closed time
Sets the minimum amount of time that the CLOSED condition will remain present after the
relay has been energised.
Application example: set a minimum generator run time (relay in CHRG mode).
(changes to OPEN and de-energised if the relay function has been inverted)
15. Relay-off delay
Sets the amount of time the ‘de-energise relay’ condition must be present before the relay
opens.
Application example: keep a generator running for a while to better charge the battery (relay in CHRG
mode).
Default Range Step size
0 minutes 0 – 500 minutes 1 minute
_______________________________________________________________
16. SOC relay
When the state of charge percentage has fallen below this value, the relay will close.
The time-to-go displayed is the time to reach the discharge floor.
Default Range Step size
50% 0 – 99% 1%
(Discharge floor)
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17. Clear SOC relay
When the state of charge percentage has risen above this value, the relay will open (after a
delay, depending on setting 14 and/or 15). This value needs to be greater than the previous
parameter setting. When the value is equal to the previous parameter the state of charge
percentage will not close the relay.
Default Range Step size
90% 0 – 99% 1%
______________________________________________________________
18. Low voltage relay
When the battery voltage falls below this value for more than 10 seconds the relay will close.
19. Clear low voltage relay
When the battery voltage rises above this value, the relay will open (after a delay, depending
on setting 14 and/or 15). This value needs to be greater than or equal to the previous
parameter.
20. High voltage relay
When the battery voltage rises above this value for more than 10 seconds the relay will close.
21. Clear high voltage relay
When the battery voltage falls below this value, the relay will open (after a delay, depending
on setting 14 and/or 15). This value needs to be less than or equal to the previous parameter.
BMV-700 / BMV-702 / BMV 712 Smart
Default Range Step size
0V 0 – 95V 0.1V
BMV-700H
Default Range Step size
0V 0 – 384V 0.1V
______________________________________________________________
22. Low starter voltage relay -702 and -712 only
When the auxiliary (e.g. starter battery) voltage falls below this value for more than
10 seconds the relay will be activated.
23. Clear low starter voltage relay -702 and -712 only
When the auxiliary voltage rises above this value, the relay will open (after a delay, depending
on setting 14 and/or 15). This value needs to be greater than or equal to the previous
parameter.
24. High starter voltage relay -702 and -712 only
When the auxiliary (e.g. starter battery) voltage rises above this value for more than
10 seconds, the relay will be activated.
24
25. Clear high starter voltage relay -702 and -712 only
When the auxiliary voltage falls below this value, the relay will open (after a delay, depending
on setting 14 and/or 15). This value needs to be less than or equal to the previous parameter.
Default Range Step size
0V 0 – 95V 0.1V
_______________________________________________________________
26. High temperature relay -702 and -712 only
When the battery temperature rises above this value for more than 10 seconds, the relay will
be activated.
27. Clear high temperature relay -702 and -712 only
When the temperature falls below this value, the relay will open (after a delay, depending on
setting 14 and/or 15). This value needs to be less than or equal to the previous parameter.
28. Low temperature relay -702 and -712 only
When the temperature falls below this value for more than 10 seconds, the relay will be
activated.
29. Clear low temperature relay -702 and -712 only
When the temperature rises above this value, the relay will open (after a delay, depending on
setting 14 and/or 15). This value needs to be greater than or equal to the previous parameter.
See setting 67 for choosing between °C and °F.
Default Range Step size
0°C -99 – 99°C 1°C
0°F -146 – 210°F 1°F
_______________________________________________________________
30. Mid voltage relay -702 and -712 only
When the midpoint voltage deviation rises above this value for more than 10 seconds, the
relay will be activated. See section 5.2 for more information about the midpoint voltage.
31. Clear mid voltage relay -702 and -712 only
When the midpoint voltage deviation falls below this value, the relay will open (after a delay,
depending on setting 14 and/or 15). This value needs to be less than or equal to the previous
parameter.
Default Range Step size
0% 0 – 99% 0.1%
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4.2.3 Alarm-Buzzer settings
Remark: thresholds are disabled when set at 0
_____________________________________________________________
32. Alarm buzzer
When set, the buzzer will sound an alarm. After a button is pressed the buzzer will stop
sounding. When disabled the buzzer will not sound an alarm.
Default Range
ON ON/OFF
______________________________________________________________
33. Low SOC alarm
When the state of charge falls below this value for more than 10 seconds the low SOC alarm
is turned on. This is a visual and audible alarm. It does not energise the relay.
34. Clear low SOC alarm
When the state of charge rises above this value, the alarm is turned off. This value needs to
be greater than or equal to the previous parameter.
Default Range Step size
0% 0 – 99% 1%
______________________________________________________________
35. Low voltage alarm
When the battery voltage falls below this value for more than 10 seconds the low voltage
alarm is turned on. This is a visual and audible alarm. It does not energise the relay.
36. Clear low voltage alarm
When the battery voltage rises above this value, the alarm is turned off. This value needs to
be greater than or equal to the previous parameter.
37. High voltage alarm - When the battery voltage rises above this value for more than 10
seconds the high voltage alarm is turned on. This is a visual and audible alarm. It does not
energise the relay.
38. Clear high voltage alarm - When the battery voltage falls below this value, the alarm
is turned off. This value needs to be less than or equal to the previous parameter.
BMV-700 / BMV-702 / BMV-712 Smart
Default Range Step size
0V 0 – 95V 0.1V
BMV-700H
Default Range Step size
0V 0 – 384V 0.1V
_______________________________________________________________
39. Low starter voltage alarm -702 and -712 only
When the auxiliary (e.g. starter battery) voltage falls below this value for more than
10 seconds the alarm will be activated. This is a visual and audible alarm. It does not energise
the relay.
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40. Clear low starter voltage alarm -702 and -712 only
When the auxiliary voltage rises above this value, the alarm is switched off. This value needs
to be greater than or equal to the previous parameter.
41. High starter voltage alarm -702 and -712 only
When the auxiliary (e.g. starter battery) voltage rises above this value for more than
10 seconds, the alarm will be activated. This is a visual and audible alarm. It does not
energise the relay.
42. Clear high starter voltage alarm -702 and -712 only
When the auxiliary voltage falls below this value, the alarm is switched off. This value needs
to be less than or equal to the previous parameter.
Default Range Step size
0V 0 – 95V 0.1V
_______________________________________________________________
43. High temperature alarm -702 and -712 only
When the battery temperature rises above this value for more than 10 seconds, the alarm will
be activated. This is a visual and audible alarm. It does not energise the relay.
44. Clear high temperature alarm -702 and -712 only
When the temperature falls below this value, the alarm is switched off. This value needs to be
less than or equal to the previous parameter.
45. Low temperature alarm -702 and -712 only
When the temperature falls below this value for more than 10 seconds, the alarm will be
activated. This is a visual and audible alarm. It does not energise the relay.
46. Clear low temperature alarm -702 and -712 only
When the temperature rises above this value, the alarm is switched off. This value needs to
be greater than or equal to the previous parameter.
See parameter 67 for choosing between °C and °F.
Default Range Step size
0°C -99 – 99°C 1°C
0°F -146 – 210°F 1°F
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47. Mid voltage alarm -702 and -712 only
When the midpoint voltage deviation rises above this value for more than 10 seconds, the
alarm will be activated. This is a visual and audible alarm. It does not energise the relay.
See section 5.2 for more information about midpoint voltage.
Default Range Step size
2% 0 – 99% 0.1%
______________________________________________________________
48. Clear mid voltage alarm -702 and -712 only
When the midpoint voltage deviation falls below this value, the alarm is switched off. This
value needs to be less than or equal to the previous parameter.
Default Range Step size
1.5% 0 – 99% 0.1%
4.2.4 Display settings
______________________________________________________________
49. Backlight intensity
The intensity of the backlight, ranging from 0 (always off) to 9 (maximum intensity
Default Range Step size
5 0 – 9 1
______________________________________________________________
50. Backlight always on
When set the backlight will not automatically turn off after 60 seconds of inactivity.
Default Range
OFF OFF/ON
______________________________________________________________
51. Scroll speed
The scroll speed of the display, ranging from 1 (very slow) to 5 (very fast).
Default Range Step size
2 1 – 5 1
______________________________________________________________
52. Main voltage display
Must be ON to display the voltage of the main battery in the monitoring menu.
53. Current display
Must be ON to display current in the monitoring menu.
54. Power display
Must be ON to display power in the monitoring menu.
55. Consumed Ah display
Must be ON to display consumed Ah in the monitoring menu.
56. State of charge display
Must be ON to display state of charge in the monitoring menu.
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