User Manual

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