Rockwell Automation 20-COMM-K CANopen Adapter - Manual (Page 59)

Troubleshooting 7-3
20-COMM-K CANopen Adapter User Manual
Publication 20COMM-UM012B-EN-P
NET A (CAN RUN) Status
Indicator This green LED indicates the status of the network connection as shown in
the table below.
NET B (CAN ERR) Status
Indicator This green LED indicates the status of the adapter transmitting on the
network as shown in the table below.
Status Cause Corrective Actions
Off The adapter and/or network is not
powered or the adapter is not properly
connected to the network.
•
Securely connect the adapter to the drive using the
Internal Interface (ribbon) cable and to the network
using a CANopen cable.
•
Correctly connect the CANopen cable to the
CANopen 9-pin plug.
•
Apply power to the drive.
Single Flash (1)
Green
The device is in stopped mode. Place the PLC in RUN mode.
Flashing Green
(about 2.5 Hz) The adapter is properly connected, but
is not communicating with any devices
on the network.
•
Place the controller in RUN mode.
•
Program the controller to recognize the adapter and
transmit I/O.
•
Configure the adapter for the program in the
controller.
Steady Green The adapter is properly connected and
communicating on the network. No action required.
(1) Single flash is one short flash (about 200 ms) followed by a long off phase (about 1000 ms).
Status Cause Corrective Actions
Off No error. No action required.
Single Flash
(1)
Green
At least one of the error counters of the
CAN controller has reached or
exceeded the warning error (too many
error frames).
•
Check controller configuration and connections to
the adapter.
•
Cycle power to the drive and the network.
Double Flash (2)
Green
A guard event has occurred. The drive is not responding to the controller within the
specified Guard time.
•
Check controller configuration and connections to
the adapter.
•
Cycle power to the drive and the network.
Steady Green The CAN controller is bus off.
•
Check network hardware and connections for wiring
problems.
•
Check for duplicate node addresses.
(1) Single flash is one short flash (about 200 ms) followed by a long off phase (about 1000 ms).
(2) Double flash is two short flashes (about 200 ms each) separated by an off phase (about 200 ms), and then followed by a long
off phase (about 1000 ms).