Plant maintenance
Preventive-maintenance kits for VFD and servo drives
Cooling fans and DC-link capacitors are the parts that age first in many drives. We identify them from the nameplate and supply them as a kit, with optional fitting.
About this service
Star Automations is a multi-brand servo motor repair company with 25+ years of work on industrial machines. Drive maintenance kits sit beside that work, because a servo motor is only as ready as the drive that feeds it. Our servo motor repair page covers the motor. This page covers the cooling fans and DC-link capacitors inside the VFD or servo drive.
Fans run whenever the drive is powered and are often the first parts to dry, seize or fall out of balance. When cooling drops, the rest of the drive runs hotter. DC-link electrolytic capacitors age with time and heat. A planned kit, built from the exact drive model, is a cleaner route than waiting for a thermal trip or a DC-bus alarm.
Puducherry operations are ISO certified. Send a nameplate photo or a list of models. We will identify the fan and capacitor set that belongs to that frame and tell you what we can supply.
Why it matters
Many plants repair a drive only after it has tripped. By then the fan may have already cooked nearby parts, or a weak capacitor may have stressed the power stage. Building a small stock of the right fans and capacitors, or booking a planned change on a group of identical frames, keeps the work under your schedule. We do not treat one calendar interval as a rule for every model. The enquiry should include the model, the environment, and any history of heat or fan noise, and we will advise from that.
If the drive has already failed, this kit page is not the first stop. Use VFD repair or servo drive repair, and we can still use the same parts where they are needed.
Who it is for
- Factories and FMCG or packaging plants with several drives of the same family.
- CNC shops and machine builders who want a spare fan and capacitor set on the shelf.
- MRO teams buying for more than one site, including recurring yearly lists.
- Maintenance heads who want the parts identified correctly before a planned stop.
How the work runs
- 1. Send the nameplate. Send the drive nameplate photo, or a list of models, frame sizes and quantities.
- 2. We identify the parts. We identify the cooling fans and DC-link capacitors that belong to that drive.
- 3. You approve. You approve the kit contents and the quantity, including any recurring programme.
- 4. Supply and fitting. We supply the kit. If you want fitting, we can do that at your plant, or at our bench if you send the drive.
What to send us
A nameplate photo, the quantity of drives, the plant city, and whether you want supply only or supply and fitting. Families we are often asked about include ABB, Siemens, Danfoss, Mitsubishi, Delta, Schneider, Yaskawa and Allen-Bradley drives. If your drive is not in that list, still send the nameplate. We are not an OEM service centre, and we will be clear about the parts we can source for the model you send.
Frequently asked questions
What is in a VFD or servo PM kit?
A typical kit is the cooling fan or fans and the DC-link capacitors that belong to that drive model and frame. We confirm the contents from the nameplate before you approve the supply.
Can you build kits for a mixed list of drive models?
Yes. Send the list with quantities. We will group the kits by model and tell you what we can supply for each line.
Do you fit the parts, or only supply them?
Either. We can supply the kit for your team, or we can fit the parts at your plant or at our bench.
Is this the same as capacitor reforming?
No. Reforming is a controlled forming process for capacitors in a drive that has been stored. A PM kit is the supply, and optional fitting, of replacement fans and capacitors. Some plants need both, on different units. We will say which applies.
What if the drive has already failed?
Send it as a repair enquiry, through our VFD repair or servo drive repair pages, and mention any fan or capacitor history. A kit is for planned work or for stocking; a failed drive needs diagnosis first.
Are kit prices listed on this page?
No. Prices are not published here. Send the nameplates and quantities and we will come back with the next step.
Brand names identify the equipment and parts we work on. Star Automations is an independent multi-brand repair and maintenance company and is not an OEM service centre.