Rockwell Automation 20-750-DNET PowerFlex DeviceNet Option Module - Manual (Page 83)

Rockwell Automation Publication 750COM-UM002B-EN-P - October 2012 83
Troubleshooting Chapter 7
NET A Status Indicator This red/green bicolor LED indicates the status of the network connection as
shown in the table below.
Status Cause Corrective Actions
Off The option module or network is not powered.
The option module is not properly connected to
the network.
• Securely connect and ground the option module to the drive by fully
inserting it into the drive port and tightening its two captive screws to the
recommended torque.
• Correctly connect the DeviceNet cable to the option module’s DeviceNet
plug.
• Apply power to the drive.
• Verify that the DeviceNet network is powered.
Steady Red The option module failed the duplicate node
address detection test or bus off.
The node address switch setting is not valid.
• Configure the option module to use a unique node address on the
DeviceNet network.
• Configure the option module to use the correct network data rate.
• Verify that the network has correct media installed.
• Verify that the node address switch setting is between 0 and 63.
Flashing Red A DeviceNet I/O connection has timed out. • Place the scanner in RUN mode, or apply power to the peer device that will
send I/O.
• Check the amount of traffic on the network.
Flashing Red/
Green The option module has received an Identify Comm
Fault request. Wait for the faulted node recovery to complete.
Flashing Green The option module is properly connected, but is
not communicating with any devices on the
network. • Place the controller in RUN mode.
• Program a controller to recognize and transmit I/O or make a messaging
connection to the option module.
• Configure the option module for the program in the controller.
Steady Green The option module is properly connected and is
communicating on the network. No action required.