Solar Controller-SCM48100 User Manual
corresponding outputs can be set as upon alarm:
6 channels are defined as follows:
OUT1: Output overvoltage/under-voltage alarm (DC
output fault);
OUT2: Secondary load power-off alarm; primary load
power-off alarm and battery power-off alarm;
OUT3: Load circuit breaker alarm; battery fuse alarm;
battery temperature too low or too high alarm; ambient
temperature and humidity too low or too high alarm; SPD
alarm; battery under-capacity alarm;
OUT4: MPPT module communication failure alarm and
MPPT module failure alarm;
OUT5: Control backup power supply start or stop (when
dry contact is connected, the backup power supply starts;
when dry contact is disconnected, the backup power
supply stops);
OUT6: Start the fan (the fan is started when the
temperature of equipment compartment reaches 40℃; the
fan is closed when the temperature of equipment
compartment recovers to 30℃);
Remarks: 1. Ambient temperature sensor is a NTC temperature sensor with accuracy of 10K 1%
(if it is required to acquire ambient humidity, 5V digital temperature sensor can be selected); 2.
Battery temperature 1 sensor and battery temperature 2 sensor are different types of sensor
interface inputs. Battery temperature sensor 1 is a NTC temperature sensor with accuracy of 1-10K
1% while battery temperature 2 sensor is a 2-12V power supply current temperature sensor. If the
distance from the battery to the controller is less than 5m, battery temperature 1 interface can be
selected to acquire battery temperature. Otherwise, please use battery temperature 2 interface to
acquire battery temperature. Meanwhile, if 2 groups of battery are connected, please ensure the
consistency of capacity of these 2 groups. as for battery temperature, it is only required to acquire
temperature of a group of battery.
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