YN-C Buck series solar charge controller
10
IV. Operate instruction
pic 4-1 Display panel image
4.1 Indicator function
The LED indicators on the display panel are fault light (red), charge indicator (yellow), and
load indicator (green). The functions are defined as shown in the following table.
Table 4-1 Indicator definition
Indicator light
status
definition
Remar
ks
1
Fault indicator
(red)
Extinguished
Working normally, no fault
2
Constantly light on
error
3
Charging
indicator (yellow)
Light off
No charging
4
Light on
MPPT charging
5
Slow flashing
Floating charge
6
Fast flashing
Boost charging
7
Output indicator
(green)
Light on
Output normally
8
Light off
Light control, timing light normally
off output
9
Slow flashing
Battery over discharge off load
Needle Definition
Note
1/2/3/4
Air
Air
5
RS485-A
RS485-A
6
RS485-B
RS485-B
7
VDC +12
12V/400mA
8
GND
Power
ground
