SolarEdge SE50K Installation Manual page 21

Primary Unit Interface
The following table describes system performance information by LED color and ON/OFF/P switch
position:
Indication
Percentage of AC
Production:
0 - 33 %
Percentage of AC
Production:
33 - 66 %
Percentage of AC
Production:
66 - 100 %
Power optimizers
not paired
Pairing
Wake-up/ Grid
Monitoring
System Producing
Night mode
(no production)
Inverter is OFF
(SafeDC)
Inverter is OFF
(DC not safe)
Inverter configuration
or reboot
Inverter firmware
upgrade
No AC power
Error
20
Extended Power Commercial Inverter Installation Guide MAN-01-00402-1.0
Figure 8: LEDs
ON/ OFF/ P
switch
Red
position
OFF
OFF
OFF
ON (1)
OFF
Blinking
OFF
OFF
OFF
OFF
OFF (0)
Blinking
ON / P ON
ON / P Blinking
OFF
Any
ON
LED color
Green Blue
ON OFF
OFF ON
ON ON
S_OK: ON
o
Blinking
No S_OK: OFF
o
Blinking Blinking
Blinking Blinking
S_OK: ON
o
ON
No S_OK: OFF
o
Flickering
S_OK: ON
o
Blinking
No S_OK: OFF
o
Blinking
ON ON
Blinking Blinking
OFF OFF
ON/ OFF/
ON/ OFF /
Blinking/ Blinking/
Flickering
Flickering
Comment
This indicates
power production as
percentage of rated
peak AC output
power
S_OK :ON-
communication with
the monitoring
platform is
established
Refer to Errors and
Troubleshooting on
page 67