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Chapter 5 Troubleshooting| CME-DN01
5-2 Revision October 2007, 2006PDD23000003
State Indication Corrective Actions
Red LED
Network failure. Failed
duplicate ID or Bus-off.
1. Ensure that all nodes have unique address.
2. If all node addresses are unique, check
network for correct media installation.
3. Ensure that the address is NOT in the illegal
range.
5.2 Module LED
State Indication Corrective Actions
LED is off No power/not online
Ensure that the connected AC drive is powered
and connected to the CME-DN01.
Flashing
Green LED
Waiting for I/O data. No
I/O, or PLC is in program
mode
CME-DN01 has passed all operation tests and
waits to transmit I/O data between the CME-DN01
and the AC drives.
Green LED I/O is in running mode
Flashing Red
LED
Configuration problem. Bad
CRC of CME-DN01
parameters or flash
program.
Reset internal I/O data of the CME-DN01. Please
refer to Data Configuration address assignment
for detail.
Red LED
Hardware Failure. Failed
internal or external RAM
test.
Return to the factory.
5.3 SP LED
State Indication Corrective Actions
LED is off No power No power is applied to the device.
Flashing
Green LED
CME-DN01 is reading the
factory settings of the AC
drives. CME-DN01 gets
parameters information of
the AC drives and
initializes some Identity
attributes.
Green LED
CME-DN01 and the AC
drives are communicating.
Flashing Red
LED
CRC check error/AC drives
return error information.
To check if the setting of communication format of
the AC drives is correct. Please refer to the
installation settings for detail.