Rockwell Automation GV3000/SE AC Drive ControlNet Network Communication Board, M/N 2CN3000 - Manual (Page 99)

Troubleshooting 8-1
C
HAPTER
8
Troubleshooting
8.1 Diagnostic LEDs
The ControlNet Network Communication Option board has three bicolor (red/green)
LEDs. The Health LED indicates the status of the network communication board and
each of the two Communications LEDs indicates the status of its associated channel.
The Health LED provides the status of the network option board. It indicates whether
or not the board has power and is operating properly.
The Communications LEDs can be off, red, green, or some alternating pattern. In
table 6.2, the term “flashing” is used to describe LEDs that are always in the same
state, or in phase. The term “alternating” is used to describe LEDs that are always in
opposite states, or out of phase.
Table 8.1 – Health LED
LED State Probable Cause Recommended Action
Off Power off Turn power on.
Falshing
Red/Green Device Test None
Flashing
Green/Off Incorrect node
configuration Check network address and other
ControlNet configuration parameters
Steady Green Normal operation The network communication board is
configured correctly.
Flashing
Red/Off Non-critical Fault An invalid configuration is loaded.This
is the indication that no OS is loaded.
Steady Red Critical Fault The network communication board
has an unrecoverable fault.