MPPT SMPPT20D User Manual

SMPPT Installation & Operation Manual Version 1.0
20
and load switched off good.
Make sure battery capacity is not too low.
Make sure voltage of other battery charger connected to
battery is not too high.
When battery voltage is 0.5V lower than defined
overvoltage protection point, load switched on
automatically by controller.
Ex3 Excessive load current and
load switched off
Reduce load current at load output, and switch on load
manually or wait for 10 mins for auto switch-on by
controller.
Ex4 Load short circuit Rectify short-circuit, and switch on load manually or
wait for 10 mins for auto switch-on by controller.
Ex5 Battery charging switched
off due to over-temperature
of controller.
Allow the controller to cool down and restart charging
automatically.
* X:Numer of Faults
6.2 Common Faults and Remedies
Phenomenon
Cause Remedy
LCD no
display
The battery is
connected to the
controller with the
wrong polarity. The
fuse burns out.
Check the fuse.
Disconnect the battery and reconnect
it to the controller with the correct
polarity.
Battery
overvoltage
protection
when startup
The controller
adjusts to the
wrong system
voltage.
Disconnect the load, solar modules
and battery. Waiting for about 10
seconds and then re-install the
controller.

MPPT SMPPT20D Specifications

General

Brand	MPPT
Model	SMPPT20D
Category	Controller
Language	English