DVP-15MC Series Motion Controller Operation Manual 
12-2 
This section mainly introduces the troubleshooting methods when any trouble occurs in DVP-15MC series 
controller. 
12.1  Explanation of LED Indicators  
 PWR LED 
POWER LED indicates the state of the power supply for DVP-15MC series motion controller. 
LED state  Explanation  How to deal with 
Green light 
ON 
Supply power is normal  No correction 
LED OFF or 
blinking 
Supply power is abnormal 
Check if the supply power for DVP-15MC 
series motion controller is normal. 
 RUN LED   
RUN LED indicates the state of program execution in DVP-15MC series motion controller. 
LED state  Explanation  How to deal with 
Green light 
ON 
DVP-15MC series motion 
controller is in RUN state. 
No correction 
LED OFF 
DVP-15MC series motion 
controller is in STOP state. 
Switch PLC to the RUN state according to 
demand 
 ERR LED   
ERR LED indicates the error state of DVP-15MC series motion controller.   
LED state  Explanation  How to deal with 
LED OFF 
DVP-15MC series motion 
controller is in the state of normal 
work. 
No correction 
Red light 
Errors in the program or 
Get the detailed error information through the 
error diagnosis function.   
Red light ON  Mistakes in hardware    Contact local technicians. 
  ERR LED: Red light blinks.(1HZ) 
 
  ERR LED: Red light blinks quickly.(10HZ) 
 
 SD LED   
SD LED is used for displaying the state of the SD card in DVP-15MC series motion controller. 
LED state  Explanation  How to deal with 
LED OFF 
1.  No SD card is inserted to DVP-
15MC series motion controller. 
Insert the SD card or not according to 
the actual demand