30
TK 56460-19-OP-EN
will need to be upgraded to 270 amps or more. Verify that alternator and
charging cable upgrades are accepted by the truck OEM.
Battery charging will take place in progressive stages that prevents an
extremely high alternator charge rate. The process begins when the truck
engine is started. The SCMs will be put in Null mode. All TriPac Envidia
batteries will be isolated. The truck batteries will begin charging first.
N
No
otte
e:: While the truck is idling there may not be enough amperage produced
by the alternator to effectively charge the batteries. Many alternators
may require a minimum of 1,200 RPM before effective battery
charging is available.
If the TriPac Envidia system is on when the truck is started, the three minute
Pull Ahead timer must expire followed by a four minute system check before
the charging process will begin. If the TriPac Envidia system is off when the
truck is started, the Base Controller wakes up to check IGN circuit status
periodically (every five minutes during first three days, every 15 minutes
days 4-6, once per hour after day 6). If it is on, the charging process will
begin.
The TriPac Envidia Base Controller will monitor System Voltage. When it
rises above 13 Vdc, the Base Controller will begin adding one SCM at a time
to the charging process if there is excess charging capacity available from
the alternator. Each SCM is capable of charging one battery at 40 amps. First
the Base Controller will check each battery. It will put one of the SCMs in
Charge mode. It will then choose to charge the battery with the lowest state
of charge. As a result, SCM1 battery A may not be the first to begin charging.
N
No
otte
e:: A battery must be above 9.5 volts for the SCM to recognize it for
charging. A battery below this voltage should be tested then
externally charged before adding it back into the system. A red
flashing LED on the SCM will indicate a battery that is under voltage
and isolated.
If System Voltage does not drop significantly when a battery is added, the
SCM will remain in Charge mode. If System Voltage does drop there is
insufficient reserve charging capacity, the truck batteries are not sufficiently
charged. The SCM will return to Null mode for 15 minutes then retry. The
SCM will continue trying to engage Charge mode until it is successful.
Once the first SCM is in Charge mode for a time the Base Controller will
attempt to add the second SCM to the charging process. It will perform the
same steps until it has both SCMs charging one battery each. The truck
alternator is now charging six batteries; four in the truck and two in the
TriPac Envidia battery box. The SCMs will bring their first batteries to 80%
state of charge then switch to their second batteries until all batteries are at