Chapter 12 Troubleshooting 
12-5 
1
LED state  Explanation  How to deal with 
2. 
Check if the Motion bus cable is Delta 
standard CANopen cable. 
3.  Check if the two ends of Motion bus have 
connected a terminal resistor respectively 
4.  Check if the baud rates of Motion port and 
slaves are same. 
5.  Check if the slaves configrued in the software 
have actually been connected to the network. 
6. 
Check if some slave can not make the 
connection with the master. 
7.  Check if some slave is offline. 
ON 
All of the axes configured for 
CAN2  (Motion
) in the 
software have been online.   
No correction 
  RUN LED   
 
  ERR LED   
LED state  Explanation  How to deal with 
LED OFF 
PLC module is in the state of 
normal work. 
No correction 
Red light 
double flashes 
Some slave is offline 
1.  Check if the Motion bus cable is Delta 
standard CANopen cable. 
2.  Check if the two ends of Motion bus have 
connected a terminal resistor respectively. 
3.  Check if all slaves configrued in the software 
have actually been connected to the 
network. 
4.  Check if the interference around CANopen 
The bus error is out of the alert 
level. 
1.  Check if the bus cable connection in the 
Motion network is correct. 
2.  Check if the Motion bus cable is Delta 
standard CANopen cable. 
3.  Check if the two ends of Motion bus have 
connected a terminal resistor respectively. 
4.  Check if the baud rates of Motion port and 
slaves are same. 
5.  Check if the interference around Motion bus 
cable is too strong. 
Red light ON  Bus-off 
 
   
ON
OFF
Green l ight 
blinks
200m s
200m s