EMA regularly provides preventive maintenance on nearly all brands of AC drives, DC drives and controllers.
Our trained technicians will attempt to spot potential problems and recommend corrective action before a failure causes unscheduled and costly downtime.
What’s Involved In Routine Preventive Maintenance?
Clean the drive equipment:
Dust and other foreign materials can create cooling problems, hide damaged components, cause corrosion, and cause arcing and other damage.
Check motor resistance and connections:
Motors often exhibit changes in resistance prior to failing.
Verify all power connections:
Power connections can loosen over time due to vibration and heat-related expansion and contraction. Loose power connections can cause fuse blowing, breaker tripping, damage to terminal strips, insulation failure and ground faults.
Verify power supplies for tolerance:
Power supplies can drift out of tolerance due to electronic problems such as faulty electrolytic caps. These will eventually cause a complete shutdown.
Observe relevant waveforms for best operation:
We typically look at the supplies, output waveforms, reference signals and feedback signals. This often uncovers otherwise hidden problems.
Shielding properly terminated and Verify signal wiring:
Improper shielding can cause the erratic and intermittent behavior of drive equipment, and loose signal wiring is a primary cause of drive equipment downtime.