Victron energy Skylla-i 24/80 1+1 Skylla-i 24/80 3 Skylla-i 24/100 1+1 Skylla-i 24/100 3 Manuel page 7

2.3. Other options
The wiring of these signals must be done with the mains disconnected from the charger.
C
ONNECTION BLOCK FOR EXTERNAL SENSORS
+ - +
Voltage Temperature
sensor sensor
2.3.1. External voltage sensor (see fig 5)
External voltage sensing may be used when accurate battery voltage sensing is important, such as high charging currents in
combination with long cables.
To connect the external voltage sensing option, proceed as follows:
connect a red wire (0.75 mm
•
• connect a black wire (0.75 mm
check that the accompanying LED is lit, otherwise check cabling
•
2.3.2. External temperature sensor (see fig 5)
The external temperature sensor, supplied with the charger, can be connected to these terminals in order to perform temperature
compensated charging of the battery. The sensor is electrically isolated and must be connected to the negative pole of the battery.
To connect the temperature sensor, proceed as follows:
connect the red wire to connector "+ Temperature sensor"
•
connect the black wire to connector "- Temperature sensor"
•
• mount the temperature sensor on the negative pole of the battery
• check that the accompanying LED is lit, otherwise check cabling
2.3.3. Remote on/off (see fig 5)
The wiring of the remote switch requires extra attention. Since this input is quite sensitive it is advised to use twisted wires for this
connection.
The remote on/off input can also be connected to an open collector optocoupler: the open circuit voltage is 3 V and the closed circuit
current is 100 µA.
When no remote switch is connected the remote on/off terminals must be short circuited by a short wire.
The remote on/off input can be connected to a Lithium Battery Management System VE.Bus BMS ('charge disconnect' output)
with a Skylla-i remote on-off cable ASS030550400.
2.3.4. Alarm relay connections (see fig 5)
The alarm relay is active when the charger is charging normally, no error condition present and the battery voltage is within the
voltage range 23.7 V and 33.6 V. The relay is switched off when the charger stops, an error occurs or when the voltage drops
below 23.45 V or rises above 33.85 V.
2.3.5. CAN-bus connection (VE.Can)
The VE.Can sockets (RJ45) provide access for monitoring and control. For example with a
device such as the Cerbo GX, or to connect the charger to a NMEA 2000 network.
Several Skylla-i Control GX panels can be connected to one charger or to a set of synchronised and parallel connected
chargers. A Lynx Ion can be connected to the Skylla-i charger directly via the VE.CAN-bus, the "allow-to-charge" condition will
be communicated via the VE.CAN-bus automatically, no separate wiring is required.
To connect to a NMEA 2000 network, use the
NMEA 2000 and MFD integration
are available in our
Each end of the VE.Can network should have a bus terminator. This is achieved by inserting a VE.Can terminator in one of the
two RJ45 connectors and the network cable in the other. In all intermediate nodes (two VE.Can cables, one in each RJ45
connector), no termination is needed.
,
- + -
Remote
on/off
Figure 5. Connector block
) between the positive battery terminal and connector "+ Voltage sensor"
2
2 ) between the negative battery terminal and connector "- Voltage sensor"
VE.Can to NMEA 2000 cable
guide.
7
SWITCH AND RELAY
NO NC
Alarm relay
Skylla-i Control GX
accessory and remove the fuse. Further details
COM
panel, a GX