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FANUC-SYS _ALARM129/ALARM130 ABNORMAL POWER SUPPLY LINE X/SDU LINE X

Open this FSSB menu from screen soft key ( first HRV3 means FANUC screen, SV(A1 L/M/N) means Combi drive, SV(A2 L/M) means power module, SDU (M1) means scale )

Here RED mark in SV (A2 L/M) means this module not get 24Volt. ( Here we remove control card from power module this inside 3.2Amp fuse blown )

                Below message SYS ALARM 129ABNORMAL POWER SUPPLY (AMP 03)/LINE1

 Below message SYS ALARM 130 ABNORMAL POWER SUPPLY (SDU01)/LINE 1

Description: An abnormal condition was detected in the power for the unit .

Countermeasures: A Voltage drop was detected in the power supplied to the unit of interest. check to see if there is any abnormality in the power supply or power supply cable and if there is voltage drop in the input power due to surge current.

Check SMPS 24 voltage measure

FANUC screen backside 24 volt DC measure

  
24 volt DC power module( COMBI DRIVE ) measure

                                                   Also check below parameter 1902 bit1 ( high or low)

24000 to 24007 parameter


987 parameter check

Double motor module inside fuse 3.2Amp  ( on control card circuit) if 3.2Amp fuse failure, So above alarm arrive on screen,  FSSB communication error alarm arrive.

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Deepika Varshney

I am an accomplished engineering professional with over 12 years of experience in the CNC (Computer Numerical Control) industry. I hold a Bachelor of Technology (B.Tech.) degree in Electronics and Communication Engineering, which laid the foundation for my technical expertise and problem-solving skills. Throughout my career, i have been deeply involved in various aspects of CNC machine operations, automation systems, and process optimization. My extensive background covers areas such as machine installation, commissioning, maintenance, and troubleshooting of advanced CNC systems. I possess a strong command over industrial control technologies and continuously upgrades my knowledge to stay aligned with modern advancements in the manufacturing sector. Known for my systematic approach and technical precision, I have contributed significantly to improve equipment reliability and operational efficiency in multiple industrial environments. My dedication, leadership, and continuous learning attitude make me a respected professional in the CNC engineering community.

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