Samlex America MSK-10A - Manual (Page 22)

22 | SAMLEX AMERICA INC.
SeCtIOn 5 | Protections, troubleshooting
& Maintenance
PRotectionS
Pv Array Short Circuit
If PV array short circuit occurs, clear it to resume normal operation.
overload in the load(s) Connected to load Terminals
If the load current exceeds the maximum load current rating, the controller will discon-
nect the load. The greater the overload, the faster the load will be disconnected. A small
overload could take a few minutes to disconnect. overloading must be removed by
reapplying power or pressing the Setting button (8).
load Short Circuit
fully protected against load wiring short-circuit. After one automatic load reconnect at-
tempt, the fault must be cleared by reapplying power or pressing the Setting button (8).
Pv Reverse Polarity
fully protected against PV reverse polarity. The controller will not be damaged. Correct
polarity of the wiring to resume normal operation.
battery Reverse Polarity
fully protected against battery reverse polarity. The controller will not be damaged. Cor-
rect polarity of wiring to resume normal operation.
Damaged local Temperature Sensor
If the temperature sensor is short-circuited or damaged, the controller will be charging
or discharging at the default temperature of 25°C to prevent battery damage due to
overcharging or over discharged.
overheating Protection
If the temperature of the controller’s heat sink exceeds 85°C, the input and output will
be disconnected. Connection will be resumed at 75°C.
High voltage Transients
battery is protected against high voltage transients. In lightning prone areas, additional
external lightning protection is recommended.
TRoubleSHooTING - Please refer to the layout at fig 2.1
Symptom Possible Cause Remarks / Remedy
Green Status LeD
“PV” (2) is not
lighted although solar
panel(s) are exposed
to sunlight energy from solar panel(s)
is not available at the Solar
Panel Input Terminals of the
controller.
Voltage > 6V is not available
simultaneously at the battery
Terminals of the controller. Check solar panel(s) wiring
Check battery connection and series fuses
and ensure voltage >6V is available at the
battery terminals of the controller