Advanced Energy AE 75TX Installation And Operation Manual page 130

Advanced Energy
Table 8-11. Status LED
LED Flash Code Unit Status
I
Description Action
Color
Green On Serial communication is established. None
Inve1ter communications are operating
n01mally.
• On solid for a few seconds
• Followed by quick flashes for several
seconds while the communications
device looks for an Internet
connection
• After a few seconds flashes more
slowly while sedal communication is
established with the inve1 ter's main
processor
• Remains on unless a fault occurs
Sho1 t-long- Serial communication fault. The None
sho1t communication PCB is communicating
with the inve1ter's main processor via sedal
communication. If the communication PCB
cannot establish communication with the
main processor, the sedal communication
fault code will flash. It is n01mal for this
status code to flash for a few seconds
during staitup.
Long-sho1t-
DNS failure. The inve1ter attempts to post • V e1 ify that the IP
sho1t data once eve1y 15 minutes to the AE address is valid.
database using Domain Name Se1vice
(DNS) se1ver to resolve the IP address. The
DNS failure code will flash when:
• DNS se1ver cannot be found
• Invalid IP address returned
If this post succeeds, the LED returns to
n01mal operation until the next post
attempts to connect to the DNS se1ver.
8-16 Troubleshooting and Solar Energy Technical Support 570-1001793-0SB