In today’s high-paced industrial world, variable frequency drives (VFDs) might seem like “set it and forget it” devices—but that mindset can lead to unexpected, costly failures. At IC-Spares, we know that even the most reliable systems—whether they’re our Siemens Perfect Harmony GH180, WEG MVW01, Benshaw, Toshiba, or Yaskawa drives, or even our rental units—require regular, proactive care to stay in peak condition.
Why Routine Maintenance Matters
While modern VFDs are engineered for durability, neglecting periodic maintenance can transform a minor issue into a major system shutdown. Think of it like regular oil changes for your car: a little effort now can prevent expensive repairs later. In fact, studies (such as those reported by IEEE) have shown that a significant portion of equipment failures is linked to inadequate or improper maintenance. By investing in routine check-ups, you can avoid unexpected downtime and extend the lifespan of your drive.
What Does “Routine” Mean?
There’s no one-size-fits-all answer when it comes to maintenance schedules, but here at IC-Spares we generally advise that medium voltage VFDs receive at least an annual inspection. In more demanding environments such as heavy industrial settings with high dust or temperature extremes, a biannual review can be a lifesaver.
Key Areas to Focus On
1. Tighten Up Loose Connections
Loose wiring, whether in high-current power circuits or low-voltage control panels, is one of the leading causes of VFD issues. Over time, vibration and thermal cycling can lead to connections that are less secure, resulting in arcing, oxidation, and excessive heat. Regularly checking and tightening these connections can prevent intermittent faults and more severe failures down the line.
2. Clear Out Contaminants
VFDs operating in harsh environments such as manufacturing floors, mining sites, or outdoor installations are prone to collecting dust, oil, and other debris. These contaminants can clog cooling fins and heat sinks, impairing the drive’s ability to dissipate heat and potentially leading to premature component failure. Keeping the internals clean is essential to maintain optimal thermal performance and avoid costly repairs.
3. Listen and Look for Warning Signs
Skilled technicians know that sometimes the earliest indicators of a problem are audible or visual. Unusual sounds from a transformer or chattering relays, or visual signs such as discoloration or scorch marks, can signal that components are nearing failure.
4. Familiarize Yourself with Your System
Scheduled maintenance isn’t just about fixing problems, it’s also an excellent opportunity to get acquainted with your system’s layout and unique characteristics. By knowing where key components are located and how they operate, your team will be better prepared to act swiftly in an emergency. Consider routine maintenance as hands-on training that pays dividends in reduced stress and faster troubleshooting when issues arise.
5. Partner with the Experts
Preventative maintenance can be complex, but you don’t have to navigate it alone. At IC-Spares, our experienced technicians have been servicing VFDs for decades. Whether you own new, refurbished, or rental drives, our team is ready to help you keep your equipment in top shape with expert maintenance and advice.
Stay Ahead of the Curve with IC-Spares
Don’t wait for a breakdown to remind you of the importance of maintenance. With our extensive range of Siemens, WEG, Benshaw, Toshiba, and Yaskawa drives—and our flexible rental options—IC-Spares is your trusted partner for keeping your systems running reliably. Reach out to us by phone, email, or visit our website today to schedule your maintenance service and ensure that your VFDs continue to power your operations efficiently.
Source Article: https://emainc.net/the-importance-of-routine-preventative-maintenance-on-vfds-2/
