AMC pm-scc-80 am User Manual
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1.5 Shunt (BCS)
The Shunt is an optional component and it is required for the Premium MPPT Series
to achieve to the optimal operation levels and it functions as a hub for connecting
measurement sensors. The main purpose of the shunt is to allow the Premium MPPT
Series to measure current drawing into and out of the battery.
DC load centers is where the Premium MPPT Series Shunt is recommend to be placed
at. Or installing it in an electrical enclosure is also acceptable. Locating the Shunt is
essential for safety. Please note that the capacity of the Shunt is 50mV, 500Amp. See
page 2-3 for wiring connection terminal.
1.6 Battery Temperature Sensor (BTS-3)
The battery temperature sensor BTS-3 is used to compensate charging by adjusting
charging voltage up or down according to the temperature detected by the sensor, see
page 2-3 for wiring connection terminal.
The Premium MPPT Series requires BTS-3 to be connected for all charging features
to be available. Premium MPPT Series is able to operate without the sensor but
Absorption Trigger set points will be lower and equalization stage will be disabled.
BTS-3 can be mounted on the battery posts.
1.7 Battery Voltage Sensing (BVS)
Connecting the red wire to a battery positive bus and the black wire to a battery
negative bus within the DC load center, see page 2-3 for wiring connection terminal.
Two sense wires may be connected to compensate possible battery cable loss during
charging. Be sure to observe correct polarity when installing voltage sense wires or
damage will result.
1.8 Wiring Diagram
Before starting to initiate the Premium MPPT Series, keep all breakers in the OFF
position. When you are ready to start the Premium MPPT Series, turn on ONLY the
Battery breaker. Do NOT turn on the PV breaker until the instruction on LCD shows
during Premium MPPT Series initialization. The internal electric circuit of the
Premium MPPT Series can only be powered by the batteries.
The installation environment of Premium MPPT Series should be in an area of good
ventilation. Never locate the Premium MPPT Series in a poorly ventilated battery area
because batteries emit the explosive gases. Do not locate the Premium MPPT Series
within 1 meters of the batteries to ensure the safety condition.
See next page for the wiring diagram of PM-SCC-80AM as an example.