Chapter 13 Warning CodesCP2000 
 
13-28
ID No.  Display on LCD Keypad  Warning Name  Description 
62 
 
CAN/M BUS off   
(PCbF) 
CANopen Master BUS off 
Action and Reset 
Action level 
When the CANopen master detects error packets more than 255 during the BUS 
off detection,  or  when  the  CANopen  card  is  not  installed,  the  PCbF  warning 
displays. 
If the BUS cable is not connected, the drive will not receive issues packet, and 
the PCbF warning will not display.   
Action time  Immediately displays when the fault is detected 
Warning setting parameter  NA 
Reset method  Cycle the power 
Reset condition  N/A 
Record  N/A 
Cause  Corrective Actions 
Malfunction caused by interference 
1.  Verify wiring/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. 
2.  Make sure the communication circuit is wired in series. 
3.  Use CANopen cable or add terminating resistance. 
Communication cable is broken or 
bad connected   
Check or replace the communication cable. 
 
ID No.  Display on LCD Keypad  Warning Name  Description 
63 
 
CAN/M node lack 
(PCnL) 
CANopen Master node error 
Action and Reset 
Action level 
When the C
Nopen master configures different setting nodes from the actual 
nodes, the PCnL warning displays. 
Action time  Immediately displays when the fault is detected 
Warning setting parameter  N/A 
Reset method 
When  connect  BUS  to  the  original  slave,  or  change  the  configured  node 
numbers to meet the actual node quantity, the warning automatically clears.   
Reset condition  N/A 
Record  N/A 
Cause  Corrective Actions 
The configured node quantity is 
different from the actual nodes   
Connect BUS to the original slave, or change the configured node numbers to 
meet the actual node quantity 
Communication cable is broken or 
bad connected   
Check or replace the communication cable.