Bedienungsanleitung Victron Lynx Smart BMS 500 (Seite 10 von 40) (Englisch)

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4. Communication and interfacing

4.1. The VictronConnect App

The VictronConnect App communicates via Bluetooth. It is used for changing settings, monitoring the Lynx Smart BMS and up to

4 connected Lynx Distributors. For more information on the VictronConnect App see the VictronConnect manual.

4.2. GX Device and the VRM Portal

The Lynx Smart BMS can be connected to a GX device via VE.Can and the GX device in its turn can communicate with the VRM

portal. The GX device and the VRM will show all measured parameters, operational state, battery SoC and alarms.

4.3. Communication Lynx Distributor

Up to 4 Lynx Distributors can be connected to a Lynx Smart BMS. They communicate via the RJ11 cable. The Lynx Distributors

communicate fuse status and operational status to the Lynx Smart BMS. The Lynx Smart BMS can be used to read out the Lynx

Distributors, generate alarms in case a fuse is blown or communication is lost.

4.4. DVCC

DVCC allows the Lynx Smart BMS to control Victron Energy inverter/chargers, AC chargers and solar chargers via a GX device.

The Lynx Smart BMS will automatically adjust discharge current, charge current and charge voltage depending on the battery

state. For the action taken for each battery state, see below table.

DVCC is automatically activated. The following parameters are implemented:

Fixed parameters:

• Absorption voltage is set at 14.2V

• Storage/float voltage is set at 13.5V

• Max charge current is set at 1C

• Charge current at low cell voltage is set at 0.1C

User configurable via the VictronConnect app:

• Absorption time

• State of charge (SoC) threshold (A new charge cycle will be initiated as soon and the the battery state of charge drops below

this threshold)

• Repeated absorption time (The number of days after which a new charge cycle is initiated, even though the battery state of

charge is still above the state of charge threshold)

For more information on DVCC and to find out which Victron Energy products can be controlled via DVCC, see the GX device

manual.

Table 1. DVCC action taken when certain battery conditions occur

Battery condition Allowed to

discharge

signal

Allowed

to charge

signal

DVCC action

A battery cell voltage is below

5°C.

This is a low temperature alarm.

High Low The charge current is reduced by lowering the charge

voltage to battery voltage minus 0.15V. This will

reduce the charge current to 0A.

The battery is signalling a low

voltage pre-alarm.

High High This is user selectable. Can be set to reduce the

discharge current to 0A, or to take no action.

A battery cell voltage is too low.

This is a under-voltage alarm

Low High The discharge current is reduced to 0A. Once the

under-voltage alarm is cleared it will be set back to

600A.

The charge voltage is reduced until the charge current

is 0.1C. Once the under-voltage alarm is cleared the

charge voltage will go back to 14.2V (28.4V).

Lynx Smart BMS

Page 7 Communication and interfacing

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