Auxiliary Electrical Connections; Aux Connection For Monitoring The Voltage Of A Second Battery; Aux Connection For Monitoring Midpoint Of A Battery Bank; Aux Connection For Temperature Monitoring - Victron energy SmartShunt 500 A Manual

3.4 Auxiliary electrical connections

In addition to the comprehensive monitoring of the main battery bank, the SmartShunt can monitor a second
parameter. This can be the voltage of a second battery (starter battery), the midpoint deviation of a battery bank
or the battery temperature. To allow for this, the SmartShunt is equipped with a second monitoring input, the Aux
input. This chapter describes how to wire the Aux input for the three possible configurable options.
3.4.1

Aux connection for monitoring the voltage of a second battery

The Aux connection can be used to monitor the voltage of a second battery, such as a starter battery.
This is how to make the connections:
Connect the M8 terminal of the red cable
•
with fuse to the positive terminal of the
second battery.
• Connect the ferrule pin of the red cable with
fuse to the SmartShunt by pushing the pin
into to the "Aux" terminal.
Connect the negative of the second battery
•
to the "SYSTEM MINUS" side of
SmartShunt.
3.4.2

Aux connection for monitoring midpoint of a battery bank

The Aux connection can be used to monitor the midpoint voltage of a battery bank that consist out of multiple
batteries that are wired in series to create a 24 or 48V battery bank.
This is how to make the connections:
Connect the M8 terminal of the red cable
•
with fuse to the positive terminal of the
midpoint.
• Connect the ferrule pin of the red cable
with fuse to the SmartShunt by pushing
the pin into to the "Aux" terminal.
For more information on midpoint monitoring
see chapter 9. This chapter also provides
information and wiring diagrams on how to
monitor the midpoint of battery banks that
have been wired in series/parallel.
3.4.3

Aux connection for temperature monitoring

The Aux connection can be used to monitor the temperature of a battery. To be able to monitor temperature you
will need to purchase the: "Temperature sensor for BMV". This is a cable with integrated temperature sensor with
part number ASS000100000. Please be aware that this temperature sensor is a different temperature sensor
than the temperature sensors that are used with the Victron inverter/chargers and battery chargers.
8
Loads
&
Chargers
Midpoint
Battery bank