Victron energy Buck-Boost 25A Manual page 9

OUTPUT led indicator
LED indicators
The Buck-Boost DC-DC converter is equipped with two RGB LEDs.
The IN LED has the following functions:
Green: The converter is switched on (by the engine running detection, or by applying a voltage on pin 1).
Yellow: The input voltage is lower than the set threshold to allow the converter
to switch on.
Red: The internal temperature is higher than the set safety threshold. The converter is
switched on
Blue: Short light pulses = the engine running detection is active, the converter turns on after a delay.
Flashes slowly = the converter is switched off and blocked for switching on due to
A too low input voltage.
The OUT LED has the following functions:
Green: The converter is switched off. The connected battery has a correct terminal voltage.
Yellow: The converter is switched off. The connected battery has too low a terminal voltage.
Red: The converter is switched off. The connected battery is empty or the battery is not connected.
Purple: The converter is switched on and supplies power to the connected battery and/or electrical
consuming points.
(The normal alerts of each LED blinks slowly for power saving)
Engine running detection
The converter has a unique engine running detection in order to be able to detect a running vehicle
engine. This prevents the converter from charging the starter battery if the alternator does not supply
power.
The converter is switched on:
When the engine is running and the supply voltage is >= (adjustable) volts and any (adjustable) minute
blocking is over.
Pin 1 input (as an alternative to the engine running detection)
The converter may also be switched on with a switch or relay contact.
Switch on:
The converter is switched on:
If pin 1 input >= 2 volts, and the supply voltage is >= (adjustable) volts and any blocking is over.
Important when installing!
Basic settings
At the time of commissioning, the following basic settings shall be applied:
Setting
20 Output voltage
22 Maximum output current
24 Undervoltage threshold
On-board voltage
The on-board voltage under setting 24 of the TS Config software shall not be set too low. This value may
be adjusted by a qualified electrician only!
12V – 12V 24V – 24V
14,4V 28,8V
60% of the current supplied by the vehicle's alternator (max.)
11,8V – 12,2V 23,8V – 24,2V
INPUT led indicator
12V – 24V
28,8V
11,8V – 12,2V
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