Far from being irrelevant, DC motors still play an important role in various industrial applications such as milling machines and conveyors. The DC motors are controlled by DC drives and are typically used in applications that require full torque at minimal speed. Like electric motors, DC drives may break down occasionally and could disrupt your production schedule.
Common Problems of DC Drives
A DC drive is an intelligent electronic device that changes the output voltage based on received signal or from a manual configuration. It has an internal power management circuit that converts the incoming AC voltage to DC voltage. When components of the power circuit break down, the DC drive becomes dysfunctional.
Overloading could also cause a DC drive to fail. When the drive is constantly stressed beyond its output current capacity and operating temperature, it will eventually fail. Sometimes, the cause of a defective DC drive can be from a grounded motor. A motors internal short to ground may cause damage to the DC drive.
In some applications, the DC drive receives commands from a PLC to control the motor. This often involves a cable for the communication. The communication cable may be susceptible to transients from lightning and may damage the internal parts of the DC drive. A fault on the communication port would prevent the DC drive from receiving any commands.
DC Drive Repair & Rebuild
Attempting to diagnose and repair a faulty DC drive on your own can be dangerous as it is powered by high AC voltage. Our repair technicians are well trained to conduct the proper diagnosis in a safe environment. We follow a strict procedure to identify problems on a faulty DC drive. The latest diagnostic tools and software in our lab means a much quicker repair time.
We start by ensuring the power supply circuits of the DC drive is functional, by measuring the values of the converted voltage. The next step is to measure the output voltage on the motor connection terminal to ensure it is at the right value. Further testing involves varying the value of the output voltage with the right commands. This is to identify any potential faults in the communications module.
By now we would be able to identify the problems with the defective DC drive. We would carry out repair on the DC drive where needed or replace the broken parts on the drive. All the repaired DC drives will undergo rigorous testing before they are delivered to our customers. We make sure that they are operating at their full capacity and are safe for deployment.
Choosing Precision Electric?
At Precision Electric, we believe not only in great products, but excellent service as well. Our growth of over 3 decades in the electric motor industry is a great testament to our quality of service. We promise that youll get 24 hours support and a 12 months warranty when you engage us to repair your defective DC drive.
Talk to our helpful technical support at Precision Electric if your DC Drive still refuses to function, or fill out the form below.
Experience & Honesty Mean Everything...
When It Comes To Equipment Repair Quotes,
When It Comes To Equipment Repair Quotes, Experience & Honesty Mean Everything…
For over 35 years Precision Electric has specialized in the repair of Industrial Variable Frequency Drives, PLCs, Servo Motors, Servo Drives, Encoders, AC Motors, DC Motors, Eddy Current Clutches, Pumps, Fans and more.
We are an authorized repair facility for many name brand vendors and have repaired equipment across a wide array of industrial electronics vendors including Allen Bradley, Rockwell, ABB, Lenze, AC Tech, Eaton, Hitachi, Marathon, Baldor, Leeson and Yaskawa.
The above list of vendors really only names a few, and does not include many nameless and brandless products shipped from over seas.
Quotations Are Free. 24 / 7 Emergency Service. 12-Month Warranty.
A+ At The Better Business Bureau
Just A Few Of The Vendors We Service, Integrate Or Repair
“We received the drive on Wednesday, and we installed it on Thursday morning. Started it and it has been running perfectly since. No issues. Thank You Again for Great Customer Service!”
Christopher AFacilities Maintenance Technician
“Extremely impressed with how quickly Precision Electric repaired one of our drives that went down. Saved us thousands in downtime.”
“We had an OEM tell us a new servo motor would cost us $10,000, Precision was able to repair it for less than $2,500. Thank you!”
“We had a bunch of equipment that had been damaged or blown up just lying around. We sent these items to Precision and they were able to make us some working spares out of the bad units!”
“We had our machine go down and it was costing us thousands of dollars every day. Precision Electric professionally, and quickly, got us back up and running – and we’re on the other side of the country!”
Many companies provide “formula quotes” like above that far exceed actual repair costs. Our experienced team of bench technicians, who are certified across many industrial vendors, will evaluate your equipment at the component level, source parts, and provide you with areal estimate on your repair.
If you need a preliminary dollar amount repair quote, feel free to estimate using the following averages:
Minor repairs: As low as 20% of the price of a replacementunit.
Major repairs: As much as70% of the price of a replacement unit.
What Do I Do Next?
Just fill out the form above and you will receive an e-mail that doubles as your packing slip. Once you’ve received the e-mail, just print it out and put it in the box with the item when you ship it.
Is There A Warranty On Repairs?
All of our repairs include a 12-month in-service warranty. This means your warranty doesn’t kick in until you install the equipment you had repaired.