EMA Inc. | Norcross, GA | Preventive Maintenance

EMA Inc.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.