Chapter 14 Fault Codes and DescriptionsC2000 Plus 
 
ID*  Display on LCD Keypad  Fault Name  Fault Descriptions 
55 
 
Illegal data address 
(CE2) 
Data address is illegal 
Action and Reset 
Action condition  When the data address is correct. 
Action time  Act immediately 
Fault treatment parameter  N/A 
Reset method  Manual reset 
Reset condition  Reset immediately 
Record  No 
Cause  Corrective Actions 
Incorrect communication 
command from the upper unit 
Check if the communication command is correct. 
Malfunction caused by 
interference 
Verify the wiring and grounding of the communication circuit. It is 
recommended 
to separate the communication circuit from the main circuit, or wire in 90 degree 
for effective anti-interference performance. 
Different communication setting 
from the upper unit 
Check if the setting for Pr.09-02 is the same as the setting for the upper unit. 
Disconnection or bad connection 
of the cable 
Check the cable and replace it if necessary.