Setting Default mode Modes Description
Relay mode
(setting 1
1)
DFLT
DFLT
Default mode.
The relay settings 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).
An application example is to 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.
7.3.2. 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 all the relay settings are inverted (with the exception of the Relay
state [32]).
Note that the "normally energised" setting will slightly increase the power consumption of the battery monitor.
Setting Default mode Modes Range
Invert relay (setting 12) OFF
OFF Normally de-energised
ON Normally energised
7.3.3. Relay state
This is a read-only parameter and it displays whether the relay is open or closed (de-energised or energised).
Setting Value Description
Relay state (setting 13)
OPEN The relay is open (de-energised)
CLSD The relay is closed (energised)
7.3.4. Relay minimum closed time
Sets the minimum time the "closed" condition will remain present after the relay has been energised.
Note that this changes to "open" and de-energised if the relay function has been inverted (Invert relay [32] setting).
An application example is to set a minimum generator run time when the relay is set to "charger" mode (Relay mode
[31] setting).
Setting Default Range Step size
Relay minimum closed time (setting 14) 0 minutes 0 - 8 hours 1 minute
7.3.5. Relay off delay
Sets the amount of time the "de-energise relay" condition must be present before the relay opens.
An application example is to keep a generator running for a while to charge the battery better when the relay is set to "charger"
mode (Relay mode
[31] setting).
Setting Default Range Step size
Relay off delay (setting 15) 0 minutes 0 - 500 minutes 1 minute
7.3.6. Low State of Charge (SoC) relay
When the state of charge percentage has fallen below the "set relay" value, the relay will close.
Manual - BMV-712 Smart
Page 32 All features and settings
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