5.Troubleshooting 5. Troubleshooting 5.1. LED Indicator Explanation POWER LED POWER LED indicates if the power supply of DVP10MC11T is normal. RUN LED RUN LED indicates the state of PLC module. ERR LED ERR LED indicates the state of execution of PLC module program or the state of power supply of DVP10MC11T. ERR LED: red light flashes (1HZ) ON OFF ERR LED: red light blinks quickly (10HZ) 100ms ON 100ms OFF DVP-MC operating manual 5-1 LED state Explanation How to deal with Green LED on Power supply is normal -- LED off or flash Power supply is abnormal Check if the power supply for DVP10MC11T is normal. LED state Explanation How to deal with Green LED on PLC module is in run state.
-- LED off PLC module is in stop state. Switch PLC to the RUN state according to demand LED state Explanation How to deal with LED off PLC module is in the state of normal work. -- Red LED flash 1. There are syntax errors in the program user writes in the PLC module; 2. Or PLC device or instruction exceeds the allowed range. 1. Judge the error cause according to the value of special register D1004 of PLC module. 2. Judge the position of program error according to D1137 value. For more details, please see the operation manual of DVP-ES2/EX2/SS2/SA2/SX2 (Programming). Red LED blinking quickly DVP10MC11T power supply is insufficient. Check if the power supply for DVP10MC11T is normal.
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