4.1.1 Battery voltage sensor
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4.1.2 Load control relay1 and Utility/Generator relay2
6.6 Main menu display
6.6 Main menu display
For compensating possible cable losses during charging, two sense wires can be connected
to measure voltage directly on the battery. Use wire with a cross-section of 0.75mm² and
insert a 0.1 Amp fuse close to the battery.
During battery charging, the charger will compensate the voltage drop over the DC cables up
to a maximum of 3 Volt. If the voltage drop threatens to become larger than 3V, the charging
current is limited in such a way that the voltage drop remains limited to 3V. The Bat.ext.volt
on the LCD will display --- if the voltage drop exceeds 3 Volt. At this time, you need to
connect the voltage sensor or check whether the wiring is correct.
The relay outputs are potential-free, normally-open contacts. Rated Value：3A/30VDC.
(1) Load control relay1
The initial state of the contacts is normally-open. The relay outputs can be used for switching
devices or loads. Heavy loads connected directly to the battery can be switched using an
additional power relay connected to this relay.
When the battery voltage is lower than the low-voltage protection voltage, the relay will be
turned off. When the battery voltage is higher than the low-voltage recovery voltage, the relay
will be opened again.
(2)Utility/Generator relay2
The initial state of the contacts is normally-close. The relay outputs can be used for
connecting power generation equipment, such as diesel engine and so on.
When the battery voltage is lower than the low-voltage protection voltage + 0.2V, the relay
will be turned on to access to external power generation equipment. When the battery voltage
is higher than the low-voltage recovery voltage, the relay will be turned off again.
You can choose whether to start the automatic maintenance function of the diesel engine.
For specific operations, please refer to .
4.1.3 AUX
Multi-functional AUX port can meet customized requirements. Aux is defined as current
sensor by default. Please customize it if you need other functions.
The current of the external equipment is calculated by setting the parameters of the current
sensor such as the maximum measuring current and the maximum output voltage. After the
correct setting, the external current will be displayed on the LCD screen of the controller.
For specific operations, please refer to .
6
The working time of the diesel shall not be less than 15 minutes each time it is
started.
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