Mastervolt Mac Plus 12/24-30, Руководство пользователя и инструкция по установке, Страница: 14 / 36

14
MAC-PLUS
Remote switch input
The remote switch input can be used to enable and disable the battery charger. In a vehicle
application is it recommended to connect the engine run signal. Depending on the vehicle the
engine run signal can be provided in different ways. For details contact your vehicle distributor.
The remote input can accept two different enable levels:
• active low, connect to ground (between 0 and 0.5 V)
• active high, connect to + battery voltage (between 3 and 32 V)
The remote switch input configuration can be done by DIP switch (see chapter 10) or by MasterBus
(see chapter 14 and 15).
Battery temperature sensor (included)
By installing the Mastervolt temperature sensor, the charge voltages are automatically adapted for
deviating temperatures.
Figure 1. Temperature compensated charging
When the battery temperature is low, the charge voltage increases. In case the battery temperature
is high, the charge voltage is decreased. Over charge and gassing are prevented this way. This will
extend the life of your battery.
Voltage drop compensation
The Mac Plus is able to compensate the voltage drop occurring over the output cables. For this
purpose the MAC PLUS is equipped with terminals for voltage sense wires. Use 0,75 mm
2
,
preferably red and black wire and protect these with a 2 A fuses slow blow. Pay good attention to
the polarity of the wires.
In order to accurately measure the battery voltage, connect the voltage sense wires as close to the
battery poles as possible. The positieve and negative voltage sense wires must be connected.
Cable losses will be compensated up to a maximum of 2.5 V.