Indramat AC Servo Power Supply: TVD1.2-50
Over the years, RepairZone technicians have seen many different reasons for Indramat Power Supply failures, especially TVD Series, but some Failure codes are seen far more often. Some of these issues can be a simple quick fix, and some may need a technician to conduct serious inquiries:
How Standard Reconditioning can vastly decrease the odds of a catastrophic breakdown
The machine environment can be a caustic one, with all kinds of opportunity for contamination to spew onto a servo motor. Though your system and servo’s may be running fine, it’s only a matter of time before a buildup of contaminates (such as cutting fluids and metal shavings) will eventually creep inside the bearings and the stator and make a motor vulnerable to a catastrophic breakdown. Contamination in the encoder and brake assembly due to improper maintenance is also common. Â
Here is a Fanuc Alpha i servo motor ready for assembly.
Repair Zone has been seeing an influx of newer generation Fanuc Alpha i Series servo motors and drives coming in for repair.  An Aerospace parts manufacturer in California sent us this Fanuc A06B-0265-B102 Alpha i servo motor for evaluation because it was increasingly noisey.  In our initial evaluation,
In Manufacturing, and in particular, the Machine Tool industry, the environment inside a machine is usually very extreme.  A CNC machine uses cutting fluids and other lubricants to aid in the ‘cutting’ of steel in the shaping of a part.  These fluids, mixed with metal shavings and other solids, causes excessive servo motor failure. Â
