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QA on the Servo Drive Repair Process

QA on the Servo Drive Repair Process

By Jade York
Here, our technician, Will, talks about repair of an Allen Bradley 1391B-AA45 Servo Drive.  He’s one of Repair Zone Man’s faithful sidekicks.

Q: Tell us your name and what we’re talking about today.

A: Hello, I am Will, one of the electronic technicians at Repair Zone. Today I am going to explain our repair and remanufacturing process using an Allen Bradley 1391B-AA45 as an example.

Q: What’s the first thing you do when you get a drive in for repair from a Repair Zone customer?

A: Normally, when your drive comes in for repair, we perform static tests to see if anything shorted has or any obvious damage.  Then we put your drive on a test cart to test the operations and see if we can duplicate your problems.

Q: Does the condition of the drive affect the process in any way?

A: It can.  If there is heavy contamination or damage, we might choose to completely disassemble it and wash and dry it with an environmentally safe cleaner to remove any contaminants that would cause problems when power is applied to the drive.

Q: What’s the washing process like?

A: During the washing process, we visually inspect all components of the drive for any physical or heat related damage, so we can give those areas special attention to check for any possible damage.  Then we blow excess water off, and place the drive in an oven to dry for several hours to make sure all water is removed from the components.

Q: Mmmmm, love the smell of baked servo in the morning.  What’s next?

A: When the drive comes out of the oven, we begin the actual repair process. We replace any components we have identified as an issue, and we also replace any components that we have seen as a common failure on the drives.  This includes electrolytic capacitors and fans.

Q: How do you know when the drive is repaired correct?

A: We perform as many static tests as we can on each of the individual circuits as part of our repair process.  Once the repair is completed, we also reassemble the drive and place it on a manufacturer specific test stand.  In this case, it’s Allen Bradley.  That’s where we try to simulate as many functions of your complete machine as possible, including actually running a motor with the drive before we ship it out.

Q: How do you get it back to a customer?

A: Once the drive has passed all of our test processes, it is sent over to the shipping department, who will package it up and send it off to another satisfied customer.  They use some pretty cool shipping processes so that nothing is damaged in transit.

Q: Anything else you want our customers to know?

A: Whether it’s servo drive repair, or any other service at Repair Zone, we take your downtime seriously.  I know what it’s like to have a crucial piece of equipment down, and our whole team works hard to get you back up and running fast.
 

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