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4. Operation, configuration and monitoring
4.1. Engine shutdown detection
The engine shutdown detection mechanism simplifies your Orion XS system by detecting if the engine is running without wiring
additional switches or sensors. The factory default setting will work with most conventional and smart alternators but can be
re-configured with the VictronConnect App.
Configuring engine shutdown detection is determined by the alternator voltage. Conventional alternators will generate a fixed
voltage (e.g. 14V), whereas the voltage of smart alternators can vary between 12.5V to 15V. Smart alternators in a regenerative
braking system often show large voltage variations.
Engine shutdown detection is only active in charger mode. The feature can be configured, disabled and reactivated as described
in the
Engine shutdown detection & input voltage lock-out [18]
determines when the output is active.
4.2. Engine shutdown detection sequence
The following procedure describes the operation of the engine shutdown detection sequence.
Engine shutdown detection sequence
1.
0 → 1: If the engine runs, the alternator voltage will ramp up. When V
2.
1 → 2: The input current produces a voltage across the input cable (V
charger (V
). If V
> V
IN
IN
shutdown
3.
2 → 3: If V
≤ V
, the charge current will be reduced to prevent V
IN
shutdown
Page 12
Manual - Orion XS 12/12-50A DC-DC battery charger
section. In power supply mode, the Input voltage lock-out
, the charger will operate at I
.
max
> V
, charging is enabled.
starter
start
); this voltage reduces the voltage measured by the
cable
to drop below V
.
IN
shutdown
Operation, configuration and
monitoring
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