Advanced Energy AE 75TX Installation And Operation Manual page 131

Advanced Energy® AE ?STX and AE 1 OOTX Inverters
Table 8-11. Status LED (Continued)
LED Flash Code Unit Status
I
Description Action
Color
Sho1 t -Sh01t- Network connection fault. The inve1ter • Vedfy that the
Long
cannot post data to the AE database server.
network cable is
The status LED may indicate n01mal connected.
operation before this occurs. This can
• V edfy that the IP
happen in the following circumstances:
address is valid.
• Network cable is not connected
• Network does not have a DHCP se1ver
or the DHCP se1 ver did not provide a
valid IP address to the inve1ter
• AE se1 ver is down for maintenance
• Any other network problem that does
not allow data to post to the AE se1ver
Table 8-12. Modbus LED
LED Flash Code Unit Status
I
Description Action
Color
Green Sho1 t (1/8 Enables the installer to troubleshoot the
• Check the Modbus
sec.)
system by verifying that communications address switches
are occuning on the network, indicating the
and make sure
following: they conespond to
the address
• If the inve1ter is connected as a slave
programmed into
device, the LED flashes quickly
theModbus
whenever there is activity on the
master .
network
• Confum that the
• Modbus network commands occuning
baud rate and
but are not addressed to this specific
other
inve1ter
communication
parameters of the
Modbus master
are set conectly.
Long (112
Inve1 ter sees and responds to a Modbus
None
sec.) master request message that is addressed to
this specific inve1ter.
Sho1 t and long Communication occuning on a Modbus None
network that contains multiple Modbus
slave devices.
570-1001793-0SB
Troubleshooting and Solar Energy Technical Support
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