Drive inspection service launched

A Deritend Group product story
Edited by the Engineeringtalk editorial team Oct 23, 2007

Deritend offers a full health check, repair and recondition service for both inverter drives and servo equipment.

Environmental factors such as heat, dust, moisture and high peak loading can take their toll on inverter and servo drives.

The sales of drives rocketed during the 90s and many are now reaching an age where they will need some attention to prevent performance degradation and possible failures.

Deritend offers a full health check, repair and recondition service for both inverter drives and servo equipment, the cost of which is minimal compared to the costs of production downtime on any size of drive.

The cost of maintenance and repairs on medium and large-sized drives will also be far less than a replacement, should problems arise.

Mark Jackson of Deritend Wolverhampton said "Medium and larger drives, over about 30kW, will invariably cost significantly less to repair than new replacement units".

"We tend to replace any item up to around 7.5kW automatically because the piece cost has reduced significantly in recent years".

"Larger drives can cost tens of thousands new, however, and are usually crucial to production or the operation of an installation - these are the drives that need care and attention and it is worth checking them, particularly of they are approaching ten years old".

Electrical components such as fans, IGBT (insulated gate bipolar transistor) packs and capacitors will naturally degrade and eventually need replacing.

PCBs can work loose, crack and suffer from heat damage.

Components are also prone to collecting dust and particle debris that can cause heat build-up and in extreme cases start to affect mounted components.

As a preventative measure inspection and cleaning is recommended.

Fans are another vulnerable area, as effective ventilation is vital and fans tend to wear out before other components.

Problems with cooling inside the cabinet can easily reduce the life of a drive by 50% and are more common than component failures, often being the root cause of a failure that is attributed to overheating.

Regular visual checking of drives is recommended, as is using thermographic survey equipment to identify hot spots inside and outside drive cabinets.

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