Projecta SC220 Instruction Manual page 8

PROTECTION
Protection
PV Reverse Polarity
Battery Reverse Polarity
Battery Over Voltage
Battery Over Discharge
Battery Overheating
Controller Overheating
Load Short Circuit
Load Overload
Damaged RTS (Temp. Sensor)
8
Conditions
When the battery is correct connecting, the
PV can be reversed.
When the PV is not connecting, the battery
can be reversed.
The battery voltage reaches to the OVD
The battery voltage reaches to the LVD
Temperature sensor is higher than 65
Temperature sensor is less than 55
Temperature sensor is higher than 85
Temperature sensor is less than 75
Load current ≥2.5 times rated current
One short circuit, the output is OFF 5s;
Two short circuit, the output is OFF 10s;
Three short circuit, the output is OFF 15s;
Four short circuit, the output is OFF 20s;
Five short circuit, the output is OFF 25s;
Six short circuit, the output is OFF
Load current ≥2.5 times rated current
1.02-1.05 times, 50s,
1.05-1.25 times, 30s
1.25-1.35 times,10s
1.35-1.5 times 2s
The RTS is short-circuited or damaged
Status
The controller is not
damaged
Stop charging
Stop discharging
o
Output is OFF
o
Output is ON
o
Output is OFF
o
Output is ON
Output is OFF
Clear the fault:
Restart the controller
or wait for one
night-day cycle
(night time>3 hours)
Output is OFF
Clear the fault:
Restart the controller
or wait for one
night-day cycle
(night time>3 hours)
Charging or
discharging at 25
o