Date: 2020-10-01
Version: 1.0
Title: SMARTPASS 120S with Charger at Service battery
Alternator
:
The Alternator is the power source for both D250SE and
SMARTPASS 120S, i.e. should be able to power the application
where these units are installed.
Smart alternators was introduced in the Euro 5 & 6 engines,
where they help the engine reduce its emissions by enabling
brake regeneration. If you have a Smart alternator connect
the red Smart Alternator signal cable to a +12V source that is
live when the engine is running (for example contact no. 15
Ignition in the DIN 72552 standard) in order to get proper
functionality from the D250SE / SMARTPASS 120S. Please
note, that connecting this wire to a source that is live
continuously will make the units active continuously as well,
possibly rendering a starter battery with low state of charge.
If the Alternator has a sense wire connected to the Service
battery make sure it is moved to the Starter battery when
installing the D250SE/SMARTPASS120S. Note, a sense wire is
typically found in Volvo Penta marine applications.
Battery charger (AC):
An AC/DC battery charger can be connected to the service
battery in parallel with the D250SE/SMARTPASS 120S or to
the starter battery.
Connecting it to the starter battery is preferred for storage
reasons or when you have loads applied to both starter and
service battery.
Connecting it to the service battery is preferred when only the
service battery is in use.
Select an AC/DC battery charger that is suitable for the size of
the battery and all consumers that are active whilst charging.
For example: A 10A charger will not charge a battery at all if
you have a 10A light turned on.
A typical charger for installations is the I1225 that have no
mode button, i.e. it needs no further action after it have been
installed.
