Detect real faults before your process shuts down
At Creativeit we offer a specialized service for VFD diagnostics and validation, focused on the most critical point of the system: the DC bus capacitors, which bear the electrical stress generated by the inverter.
Using the Chroma 11800 system (1 kHz), we simulate real operating conditions (AC ripple + DC bias) to evaluate whether the components can truly handle the work in the field.
Why do VFDs fail?
A drive can pass basic tests and still fail in real operation due to:
- High ripple current on the DC bus
- Internal overheating of capacitors
- Accelerated degradation (reduced service life)
- Incorrect component replacements
- Dynamic conditions not evaluated during maintenance
Most critical failures come from the capacitors, not the control.
What do we evaluate?
- Actual ripple current handling capability
- Temperature rise under load
- Dynamic behavior of the capacitor
- Comparison between the original component and the replacement
- Detection of hidden faults (that do not appear in DC tests)
Technology applied
- Chroma 11800 Ripple Current Tester (1 kHz)
- High-amplitude AC current injection (up to 30 A)
- Simultaneous DC bias (real bus simulation)
- Real-time performance monitoring
Use cases
- VFD that shuts down or fails for no apparent reason
- Recurring failures after maintenance
- Validation of capacitors before installation
- Fewer unplanned stoppages
- Evaluation of spare parts suppliers
Benefits for your operation
- Less production downtime
- Savings on unnecessary replacements
- Accurate diagnosis (not guesswork)
- Greater system reliability
- Decisions based on real data
Deliverables
- Detailed technical report
- Results under real simulated conditions
- Thermal evaluation of the component
- Condition and risk diagnosis
- Replacement or usage recommendations
