Chapter 14 Fault Codes and DescriptionsCP2000 
 
14-32
ID*  Display on LCD Keypad  Fault Name  Fault Descriptions 
54 
 
Illegal command   
(CE1) 
Communication command is illegal 
Action and Reset 
Action level 
When the function code is not 03, 06, 10, or 63. 
Action time 
Immediately act 
Fault treatment parameter  N/A 
Reset method  Manual reset 
Reset condition  Immediately reset 
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. 
 
ID*  Display on LCD Keypad  Fault Name  Fault Descriptions 
55 
Illegal data address 
(CE2) 
Data address is illegal 
Action and Reset 
Action level  When the data address is correct. 
Action time  Immediately act 
Fault treatment parameter  N/A 
Reset method  Manual reset 
Reset condition  Immediately reset 
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.