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When the internal temperature is 81
℃
, the reduced charging power mode is turned on. It reduces
the charging power by 5%,10%,20%, and 40% with every increase of 1
℃
. If the internal
temperature exceeds 85
℃
, the controller will stop charging. When the temperature declines to be
below 75 ºC, the controller will resume.
For example XTRA4215N 24V system:
5.2 Troubleshooting
Possible
reasons
Faults
Troubleshooting
PV array
disconnection
Charging LED indicator off during
daytime when sunshine falls on PV
modules properly
Confirm that PV wire
connections are correct and
tight
Battery voltage
is lower than 8V
The wire connection is correct, and
the controller is not working.
Please check the battery
voltage. At least 8V to activate
the controller.
Battery over
voltage
XDB1
:
Charging indicator
Green fast flashing
Check if the battery voltage is
higher than OVD (over
voltage disconnect voltage),
and disconnect the PV.
XDS1
:
XDS2
:
Charging indicator
Green fast flashing
Battery level shows full,
battery frame and fault
icon blink.